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9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
1
ORTHODONTICS MANAGEMENT OF
CLASS II MALOCCLUSIONS
A
H
M
E
D
S
A
F
W
A
T
EVENT SPEAKER:
DR. AHMED SAFWAT
BDS, DDS, MSC ORTHODONTICS, EOS AAO.
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
2
1.
Definitions:
2.
Classification:
3. Etiological
Factors:
4. Clinical
Features:
5.
Management:
O
U
T
L
I
N
E
S
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS,
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
3
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
ANTRO-POSTERIOR MALOCCLUSIONS
Class 2 Malocclusions
Maxillary
Prognathism
Mandibular
Retrognathism
Combinations
Class 3 Malocclusions
Maxillary
Retrognathism
Mandibular
Prognathism
Combinations
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
CLASSIFCATIONS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
4
Class II
MALOCCLUSIONS
Young Age
Growth
Modification
Adults
Camouflage
Class III
MALOCCLUSIONS
Young Age
Growth
Modification
Adults
Camouflage
ORTHODONTICS MANAGEMENT OF
SKELETAL ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
T
R
E
A
T
M
E
N
T
M
O
D
A
L
I
T
I
E
S
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
5
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
6
I. Classification of Angle's Class II Malocclusion
 Based On Angle's Classification
Malocclusions Are Classified Into Two Types:
 Angle's Class II Division 1 Malocclusion;
The molar relationship is class ll with the upper
anteriors proclined.
 Angle's Class II Division 2 Malocclusion;
The molar relationship is class ll and the upper
incisors are retroclined
 Angle's Class ll Subdivision Malocclusion;
The molar relationship is class ll only in one side and
the other side has class l molar relationship.
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
7
I. Classification of Angle's Class II Malocclusion
 Based On Angle's Classification
Malocclusions Are Classified Into Two Types:
1. Angle's Class II Division 1 Malocclusion;
The molar relationship is class ll with the upper
anteriors proclined.
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
8
I. Classification of Angle's Class II Malocclusion
 Based On Angle's Classification
Malocclusions Are Classified Into Two Types:
2. Angle's Class II Division 2 Malocclusion;
The molar relationship is class ll and the upper
incisors are retroclined
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
9
I. Classification of Angle's Class II Malocclusion
 Based On Angle's Classification
Malocclusions Are Classified Into Two Types:
3. Angle's Class ll Subdivision Malocclusion;
The molar relationship is class ll only in one side and
the other side has class l molar relationship.
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
10
 When buccal groove of
first mandibular molar
occlude distal to mesio
buccal cusp of the first
maxillary molar with
retroclination of
maxillary central
incisors.
 It represent 5 to 10 %
of all malocclusion, by
Sassouni 1971.
II. Class II division II malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
II. Von-der-lindon Classification Of Angle's Class II Malocclusion
Based On Severity Of Incisor Relationship
II. Class II division II malocclusion
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
11
II. Class II Division II Malocclusion Sub-division
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
- TYPE A:
Maxillary central and lateral incisors are retroclined.
Degree of retroclination is less severe in nature.
II.
Von-der-lindon
Classification
Of
Angle's
Class
II
Malocclusion
Based
On
Severity
Of
Incisor
Relationship
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
12
II. Class II Division II Malocclusion Sub-division
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
- TYPE B:
Maxillary lateral incisors are overlapping the
retroclined maxillary central incisors.
II.
Von-der-lindon
Classification
Of
Angle's
Class
II
Malocclusion
Based
On
Severity
Of
Incisor
Relationship
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
13
II. Class II Division II Malocclusion Sub-division
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
- TYPE C:
Maxillary central and lateral incisors are retroclined
and are overlapped by the maxillary canines.
II.
Von-der-lindon
Classification
Of
Angle's
Class
II
Malocclusion
Based
On
Severity
Of
Incisor
Relationship
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
14
Pre-natal Factors
• Genetic and
congenital:
• Teratogenesis
• Irradiation
• Intrauterine fetal
posture
Natal Factors
• Improper forceps
application during
delivery can lead to
condylar damage
/fracture causing internal
hemorrhage into the
joint area. TMJ can get
ankylosed or fibrosed
later, leading to
underdevelopment of
the mandible
Post-natal Factors
• Traumatic injuries
• Oral habits such as
thumb sucking
• Congenitally missing
teeth
Etiological Factors of Class II Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
15
Clinical Features of Class II Division I Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Extra-oral
Features
Shape Of The Head: Mesocephalic or Dolichocephalic Facial Form: Mesoprosopic or Euryprosopic.
Facial Divergence: Posterior facial divergence.
Lips: Incompetent lips.
Mentolabial Sulcus: Deep .
Nasolabial Angle: Decreased .
Mentalis: Hyperactive.
Lower Facial Height: Decreased.
Profile: Convex facial profile
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
16
Clinical Features of Class II Division I Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Radiographic Features
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
17
Clinical Features of Class II Division I Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Intra-oral Features • Maxillary Anteriors:
Proclination of maxillary
anterior .
• Molar Relationship: Class II
molar relationship
• Incisor Relationship: Class II
division I incisor relationship.
• Over Jet: Increased .
• Over Bite: Increased .
• Shape Of The Maxillary Arch:
V shaped arch .
• Curve Of Spee: Exaggerated .
• Anterior Open Bite: May or
may not be present, Depends
on the persistence of
deleterious oral habits.
• Posterior Cross-bite & Scissor-
Bite: Presence depends on
persistence of habit.
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
18
Clinical Features of Class II Division I Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Extra-oral
Features
FEATURES CLASS II DIV 2
Shape Of The Head: Brachycephalic head
Profile Strait to mild convex
Upper Lip
Lower lip
Competency
Normal
Normal or everted
Competent
Mentolabial sulcus Maybe deep or normal
LFH Low
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
19
Clinical Features of Class II Division I Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Intra-oral
Features
Molar and canine
relationship
Class II molar and
canine relationship
Incisors
Centrals retroclined,
laterals proclined
Overjet decreased
Overbite Closed bite
Arch form Square U shaped
Palate shallow
Curve of spee deep
Path of closure Backward
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
20
Clinical Features of Class II Division I Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Radiograhic Features
1. SNA: Normal
2. SNB: Decreased
3. ANB: Increased
4. Flat mandibular plane.
5. Increased posterior
facial height(s-go).
6. Short lower anterior
facial height
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
21
Clinical Features of Class II Division I Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
 Result from discrepancy in
Maxillo-mandibular
relationship, which May
be due to;
 Mandibular deficiency.
 Maxillary excess,
 or combinations
Difference Between Dental & Skeletal Class II
Skeletal Class II
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
22
Clinical Features of Class II Division I Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Difference Between Dental & Skeletal Class II
 Normal maxillo-mandibular relationship.
 Mainly due to mesial drift of upper 6 as a result of:
• Premature extraction of upper E.
• Congenitally missed of upper E.
 Discrepancy at inter arch tooth size;
• Small or congenitally missed upper Permenant premolar (u5) lead
to class II molar relationship.
• Impacted or missed upper canine or 2nd premolar lead to
inadequate space and then class II relationship.
Dental Class II
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
23
Management of Class II Division I Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Age At Which
The Patient
Is Seem
Nature &
Severity of
The
Problem
Treatment Principles Depends On Three Important Factors:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
24
Class II
MALOCCLUSIONS
Young Age
Growth
Modification
Adults
Camouflage
Class III
MALOCCLUSIONS
Young Age
Growth
Modification
Adults
Camouflage
ORTHODONTICS MANAGEMENT OF
SKELETAL ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
T
R
E
A
T
M
E
N
T
M
O
D
A
L
I
T
I
E
S
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
25
Management of Class II Division I Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
26
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Maxillary Prognathism
With
Normal Mandible:
Normal Maxilla With
Mandibular Deficiency
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
27
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
• Restrict The Excessively Growing
Maxilla (Distalization)
• Extraoral Force Using Headgear
(The Most Effective Approach)
Main
Treatment
Objectives
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
28
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
Face bow therapy is the best treatment to restrict max.
growth.
Face bow applay a distal extra-oral force on the maxillary
dentition and the maxilla in the magnitude of 400-600 gm
perside, intermittently for a duration of 12 to 14 hours a
day to bring about the desired skeletal effects.
More dental movement occurs if the face bow is worn more
than 16 hrs. per day at force level 300 gm or less.
Patients are advised to wear the appliance in the evening
and throughout the night.
Headgear age of treatment is usually given at 8.5 to 10.5
years in females and 9.5 to 11.5 years in males
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
29
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
 Components Of Headgear:
1. Force Delivering Unit:
 Face Bow.
 'J'hook.
2. Force Generating Unit:
 Coil Spring (Safety Module).
3. Anchor Unit:
 Head Cap Or,
 Neck Strap.
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
30
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
31
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
32
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
• Shape Of The Head: Mesocephalic or Dolichocephalic
• Facial Form: Mesoprosopic or Euryprosopic.
• Lips: Incompetent lips.
• Mentolabial Sulcus: Deep .
• Nasolabial Angle: Decreased .
• Mentalis: Hyperactive.
• Profile: Convex facial profile
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Extra-oral
Records:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
33
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Intra-oral Records:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
34
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Radiographic
Records:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
35
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Radiograhic Features
1. SNA: Increased.
2. SNB: Normal.
3. ANB: Increased.
4. FMA: Increased.
5. Decreased
posterior facial
height(s-go).
6. Long lower anterior
facial height
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
36
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Treatment Objectives:
 Restrict the maxillary forward downward growth.
 Correct the increased dental over-jet.
Treatment Steps:
 Two Stage Treatment Protocols Were Followed:
 1st Removable Stage: High-pull headgear with
removable acrylic maxillary splint for 9 months for
maxillary distalization.
 2nd Fixed Stage: SWA reinforced with High-pull
headgear for anchorage
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
37
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
38
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Intra-oral Records:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
39
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Extra-oral
Records:
• Shape Of The Head: Mesocephalic or Dolichocephalic
• Lips: Competent lips.
• Mentolabial Sulcus: Normal .
• Nasolabial Angle: Increased .
• Mentalis: Normal.
• Profile: Straight to Convex facial profile
Extra-oral
Records:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
40
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Intra-oral Records:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
41
Management of Class II Division I Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
Radiographic Records:
1. SNA: Decreased.
2. SNB: Normal.
3. ANB: Decreased.
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
42
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Case Report:
• Egyptian male with 10
years old.
• Chief complaint of bad
smile & improper occlusion
functions.
• Extra-oral records show
deficient mandible with
decreased anterior lower
facial height &
incompetent lips.
• Intra-oral records show
increased over-jet with
crowded & extruded lower
anterior teeth.
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
43
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
• Shape Of The Head: Mesocephalic or Dolichocephalic
• Lips: Incompetent lips.
• Mentolabial Sulcus: Deep .
• Nasolabial Angle: Decreased .
• Mentalis: Hyperactive.
• Profile: Convex facial profile
Extra-oral
Records:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
44
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Intra-oral Records:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
45
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Radiographic
Records:
1. SNA: Increased.
2. SNB: Decreased.
3. ANB: Increased.
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
46
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Treatment Objectives:
 Activate the mandible forward downward growth.
 Correct the increased dental over-jet.
Treatment Steps:
 Two Stage Treatment Protocols Were Followed:
 1st Removable Stage: Twin-block removable apliance
for 9 months for mandible forward downward growth
activation.
 2nd Fixed Stage: SWA reinforced with fixed
functional appliance for anchorage & continue
mandible forward downward movement.
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
47
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
 The primary goal is to
enhance the mandibular
growth using functional
appliances like activator,
frankel, herbest and various
bite jumping devices.
 They work by unloading the
mandibular condyle from the
glenoid fossa to a more
forward position inducing
altered muscular activity.
 This tend to enhance the
growth in the condyle region.
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
48
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
Twin-Block Appliance
 Twin-block appliance is
composed of maxillary and
mandibular acrylic retainers
that fit tightly against the
teeth, alveolus and adjacent
supporting structures.
 Delta clasps are used bilaterally
to anchor the maxillary
appliance to the first permanent
molars and 0.030 inch
 Ball clasps are placed in the
interproximal areas anteriorly
REMOVABLE FUNCTIONAL APPLIANCES THERAPY
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
49
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
Twin-Block Appliance
REMOVABLE FUNCTIONAL APPLIANCES THERAPY
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
50
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
REMOVABLE FUNCTIONAL APPLIANCES THERAPY
Twin-Block Appliance
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
51
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
Twin-Block Appliance
 Anchorage: The precise clasp configuration depends on
the type of deciduous or permanent teeth and number of
teeth present at the time of appliance construction.
 Bio-mechanics: It produce increase in mandibular length,
incisor proclination and variations in lower anterior facial
height.
 The posterior bite blocks of the twin block appliance can
be trimmed to facilitate the eruption of the lower
posterior teeth in patient with a deep bite and an
accentuated curve of Spee.
 The blocks also can be left untouched to prevent the
eruption of the posterior teeth in patients with a
tendency toward an anterior open bite.
REMOVABLE FUNCTIONAL APPLIANCES THERAPY
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
52
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
Twin-Block Appliance
REMOVABLE FUNCTIONAL APPLIANCES THERAPY
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
53
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
FIXED FUNCTIONAL APPLIANCES THERAPY
HERBST DESIGN
The Herbst appliance is a fixed functional
orthopedic appliance having passive tube and
plunger system with the exact length of the
tube determining the amount of anterior
mandibular development.
The tube is attached to a maxillary posterior
root, whereas the plunger is fixed anteriorly
to the mandibular dentition and slides through
the tube during opening and closing movements.
HERBST APPLIANCE
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
54
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
FIXED FUNCTIONAL APPLIANCES THERAPY
HERBST APPLIANCE
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
55
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
FIXED FUNCTIONAL APPLIANCES THERAPY
HERBST APPLIANCE
Indications:
• 1. Dental class II
malocclusion.
• 2. Deep bite with
retroclined
mandibular incisors.
• 3. Skeletal class II
mandibular
deficiency
Contraindication:
• 1. Dental and
skeletal open bites.
• 2. Cases prone to
root resorption.
Disadvantages:
• 1. High cost.
• 2. Herbst appliance
associated with
more chances of
breakage.
• 3. Less patient
acceptance
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
56
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
• Shape Of The Head: Mesocephalic or Dolichocephalic
• Lips: Competent lips.
• Mentolabial Sulcus: Normal .
• Nasolabial Angle: Increased .
• Mentalis: Normal function.
• Profile: Straight to Convex facial profile
Extra-oral
Records:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
57
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Radiographic
Records:
1. SNA: Decreased.
2. SNB: Increased.
3. ANB: Decreased.
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
58
Management of Class II Division II Malocclusion
During Mixed Dentition Period (Growing Period)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
With
Normal
Maxilla
&
Deficient
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Intra-oral Records:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
59
Management of Dento-alveolar Class II Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Management
Of
Dento-alveolar
Class
ΙΙ
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
60
Management of Dento-alveolar Class II Malocclusion
With Normal Skeletal Relationship (Growing Period).
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Dento-alveolar
Class
ΙΙ
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Management Is Based Mainly On The
Etiological Factors:
2-In prematurely
extracted cases where
mesial drift has occurred,
space regaining device are
to be used
1-Avoid premature
extraction and if necessary
space should maintained to
prevent mesial drift in the
molar.
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
61
Management of Dento-alveolar Class II Malocclusion
With Normal Skeletal Relationship (Growing Period).
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
THEY FALL UNDER TWO CATEGORY:
B- Extra-oral appliances
for distalization can be
done using headgear
A- Intra-oral appliances
for distalization , include
pendulum, distal slide
appliance or springs.
Management
Of
Dento-alveolar
Class
ΙΙ
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
62
Management of Dento-alveolar Class II Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Management
Of
Dento-alveolar
Class
ΙΙ
 Premature Tooth Loss With Adequate Space: Space
Maintenance :
 Band-and-Loop Space Maintainers.
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
63
Management of Dento-alveolar Class II Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Early
loss of
primary teeth
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
64
Management of Dento-alveolar Class II Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Management
Of
Dento-alveolar
Class
ΙΙ
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
65
Class II
MALOCCLUSIONS
Young Age
Growth
Modification
Adults
Camouflage
Class III
MALOCCLUSIONS
Young Age
Growth
Modification
Adults
Camouflage
ORTHODONTICS MANAGEMENT OF
SKELETAL ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
T
R
E
A
T
M
E
N
T
M
O
D
A
L
I
T
I
E
S
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
66
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Class II Division I Malocclusion In Adult Patients
Maxillary
Prognathism
Mandibular
Retrognathism
Combinations
CLASSIFCATIONS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
67
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Non Accepted Smile
Display Due To
Maxillary
Prognathism
Two Treatment Protocols
Available:
Retraction Of Anterior
Segment Into Premolars
Extraction Spaces
Distalization Of The
Whole Maxillary
Segment
A- Maxillary Prognathism
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
68
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Extra-oral
Features
Shape Of The Head: Mesocephalic or Dolichocephalic
Facial Profile: Convexdivergence.
Lips: Incompetent lips.
Mentolabial Sulcus: Deep .
Nasolabial Angle: Decreased .
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
69
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Intra-oral Features
• Maxillary Anteriors:
Proclination of maxillary
anterior .
• Molar Relationship: Class II
molar relationship
• Incisor Relationship: Class II
division I incisor relationship.
• Over Jet: Increased .
• Over Bite: Increased .
• Shape Of The Maxillary Arch:
V shaped arch .
• Curve Of Spee: Exaggerated .
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
70
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
Radiographic Features
1. SNA: Increased.
2. SNB: Normal.
3. ANB: Increased.
4. FMA: Increased.
5. Decreased posterior facial
height(s-go).
6. Long lower anterior facial
height
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
71
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Treatment Objectives:
 Retract the maxilla.
 Correct the increased
dental over-jet.
Treatment Steps:
 Extraction of 1st premolars.
 Retraction Of Anterior Segment Into Premolars
Extraction Spaces
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
72
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Treatment
Progress:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
73
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Treatment Progress:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
74
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Treatment Progress:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
75
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Treatment Progress:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
76
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Two Treatment Protocols
Available:
Retraction Of Anterior
Segment Into Premolars
Extraction Spaces
Distalization Of The
Whole Maxillary
Segment
B- Mandibular Retrusion
Management
Of
Class
ΙΙ
Div
I
With
Normal
Maxilla
&
Retruded
Mandible:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
77
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Normal
Maxilla
&
Retruded
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Maxillary
Distalization
MEAW
Bio-mechanics
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
78
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Normal
Maxilla
&
Retruded
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
MEAW
Bio-mechanics
Maxillary
Distalization
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
79
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Normal
Maxilla
&
Retruded
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Maxillary
Distalization
TADs
Bio-mechanics
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
80
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
I
With
Maxillary
Prognathism
&
Normal
Mandible:
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Class II Division I Malocclusion In Adult Patients
Maxillary
Prognathism
Mandibular
Retrognathism
Combinations
CLASSIFCATIONS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
81
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
In Case Of A Combinations Of Increased Maxilla & Mandible
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
82
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
I
n
C
a
s
e
O
f
A
C
o
m
b
i
n
a
t
i
o
n
s
O
f
I
n
c
r
e
a
s
e
d
M
a
x
i
l
l
a
&
M
a
n
d
i
b
l
e
Two Treatment Objecties:
Retraction Of Maxillary
Anterior Segment
Retraction Of
Mandibular Anterior
Segment
C- Maxillary & Mandibular
Excess
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
83
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
I
n
C
a
s
e
O
f
A
C
o
m
b
i
n
a
t
i
o
n
s
O
f
I
n
c
r
e
a
s
e
d
M
a
x
i
l
l
a
&
M
a
n
d
i
b
l
e
• Shape Of The Head:
Dolichocephalic
• Facial Profile: Convex divergence.
• Lips: Incompetent lips.
• Mentolabial Sulcus: Deep .
• Nasolabial Angle: Decreased .
Extra-oral
Features
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
84
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
I
n
C
a
s
e
O
f
A
C
o
m
b
i
n
a
t
i
o
n
s
O
f
I
n
c
r
e
a
s
e
d
M
a
x
i
l
l
a
&
M
a
n
d
i
b
l
e
• Shape Of The Head:
Dolichocephalic
• Facial Profile: Convex divergence.
• Lips: Incompetent lips.
• Mentolabial Sulcus: Deep .
• Nasolabial Angle: Decreased .
Extra-oral
Features
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
85
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
I
n
C
a
s
e
O
f
A
C
o
m
b
i
n
a
t
i
o
n
s
O
f
I
n
c
r
e
a
s
e
d
M
a
x
i
l
l
a
&
M
a
n
d
i
b
l
e
Radiographic Features
1. SNA: Increased.
2. SNB: Increased.
3. ANB: Increased.
4. FMA: Increased.
5. Decreased posterior
facial height(s-go).
6. Long lower anterior
facial height
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
86
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
I
n
C
a
s
e
O
f
A
C
o
m
b
i
n
a
t
i
o
n
s
O
f
I
n
c
r
e
a
s
e
d
M
a
x
i
l
l
a
&
M
a
n
d
i
b
l
e
Intra-oral Records
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
87
Management of Class II Division I Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
I
n
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f
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b
i
n
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Treatment
Progress:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
88
Management of Class II Division II Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Management
Of
Class
ΙΙ
Div
II
In
Permanent
Dentition
(Adult
Patients):
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
89
Management of Class II Division II Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Treatment
Objectives
Correct Molar & Canine Relationships
Relief The Crowded Dentition
Correct Anterior Teeth Torque
Management
Of
Class
ΙΙ
Div
II
In
Permanent
Dentition
(Adult
Patients):
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
90
Extra-oral
Features
FEATURES CLASS II DIV 2
Shape Of The Head: Brachycephalic head
Profile Strait to mild convex
Upper Lip
Lower lip
Competency
Normal
Normal or everted
Competent
Mentolabial sulcus Maybe deep or normal
LFH Low
Management
Of
Class
ΙΙ
Div
II
In
Permanent
Dentition
(Adult
Patients):
Management of Class II Division II Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
91
Clinical Features of Class II Division I Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Radiographic Features
1. SNA: Normal
2. SNB: Decreased
3. ANB: Increased
4. Flat mandibular plane.
5. Increased posterior
facial height(s-go).
6. Short lower anterior
facial height
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
92
Management of Class II Division II Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Radiographic Records:
Management
Of
Class
ΙΙ
Div
II
In
Permanent
Dentition
(Adult
Patients):
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
93
Management of Class II Division II Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Intra-oral Records:
Management
Of
Class
ΙΙ
Div
II
In
Permanent
Dentition
(Adult
Patients):
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
94
Clinical Features of Class II Division I Malocclusion
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
Intra-oral
Features
Molar and canine
relationship
Class II molar and
canine relationship
Incisors
Centrals retroclined,
laterals proclined
Overjet decreased
Overbite Closed bite
Arch form Square U shaped
Palate shallow
Curve of spee deep
Path of closure Backward
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
95
Management of Class II Division II Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Management
Of
Class
ΙΙ
Div
II
In
Permanent
Dentition
(Adult
Patients):
Treatment
Progress:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
96
Management of Class II Division II Malocclusion
In Permanent Dentition (Adult Patients)
ORTHODONTICS MANAGEMENT OF
ANTRO-POSTERIOR MALOCCLUSIONS
BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
Treatment
Progress:
Management
Of
Class
ΙΙ
Div
II
In
Permanent
Dentition
(Adult
Patients):
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
97
ORTHODONTICS MANAGEMENT OF
CLASS II MALOCCLUSIONS
A
H
M
E
D
S
A
F
W
A
T
EVENT SPEAKER:
DR. AHMED SAFWAT
BDS, DDS, MSC ORTHODONTICS, EOS AAO.
• Orthodontics contemporary ( William R.
Proffit).
• Hand book of Orthodontics (Robert
Moyers).
• ORTHODONTICS Principles and Practice(
Basavaraj Subhashchandra Phulari).
• FLAVIO URIBE, RAVINDRA NANDA,
Treatment of Class II, Division 2
Malocclusion in Adults: Biomechanical
Considerations 2003 JCO.
• Paulo Renato Carvalho Ribeiro, Angle
Class II, Division 2, malocclusion with
deep overbite, Dental Press J. Orthod.
132-143, Jan./Feb. 2010.
• Hande Görücü Coşkuner, İlken
Kocadereli, Non extraction Treatment OF An
Adult With CLASS II DIVISION 2 Malocclusion,
CLINICAL DENTISTRY AND RESEARCH 2013; 37(3): 49-
56
References:
9/9/2021
Antero-Posterior
Malocclusions,
Ahmed
Safwat
98
ORTHODONTICS MANAGEMENT OF
CLASS II MALOCCLUSIONS
A
H
M
E
D
S
A
F
W
A
T
EVENT SPEAKER:
DR. AHMED SAFWAT
BDS, DDS, MSC ORTHODONTICS, EOS AAO.

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Orthodontic Management of Class ll malocclusion by Ahmed Safwat

  • 1. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 1 ORTHODONTICS MANAGEMENT OF CLASS II MALOCCLUSIONS A H M E D S A F W A T EVENT SPEAKER: DR. AHMED SAFWAT BDS, DDS, MSC ORTHODONTICS, EOS AAO.
  • 3. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 3 ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS ANTRO-POSTERIOR MALOCCLUSIONS Class 2 Malocclusions Maxillary Prognathism Mandibular Retrognathism Combinations Class 3 Malocclusions Maxillary Retrognathism Mandibular Prognathism Combinations BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS CLASSIFCATIONS
  • 4. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 4 Class II MALOCCLUSIONS Young Age Growth Modification Adults Camouflage Class III MALOCCLUSIONS Young Age Growth Modification Adults Camouflage ORTHODONTICS MANAGEMENT OF SKELETAL ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS T R E A T M E N T M O D A L I T I E S
  • 5. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 5 BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS
  • 6. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 6 I. Classification of Angle's Class II Malocclusion  Based On Angle's Classification Malocclusions Are Classified Into Two Types:  Angle's Class II Division 1 Malocclusion; The molar relationship is class ll with the upper anteriors proclined.  Angle's Class II Division 2 Malocclusion; The molar relationship is class ll and the upper incisors are retroclined  Angle's Class ll Subdivision Malocclusion; The molar relationship is class ll only in one side and the other side has class l molar relationship. ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS
  • 7. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 7 I. Classification of Angle's Class II Malocclusion  Based On Angle's Classification Malocclusions Are Classified Into Two Types: 1. Angle's Class II Division 1 Malocclusion; The molar relationship is class ll with the upper anteriors proclined. ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS
  • 8. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 8 I. Classification of Angle's Class II Malocclusion  Based On Angle's Classification Malocclusions Are Classified Into Two Types: 2. Angle's Class II Division 2 Malocclusion; The molar relationship is class ll and the upper incisors are retroclined ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS
  • 9. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 9 I. Classification of Angle's Class II Malocclusion  Based On Angle's Classification Malocclusions Are Classified Into Two Types: 3. Angle's Class ll Subdivision Malocclusion; The molar relationship is class ll only in one side and the other side has class l molar relationship. ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS
  • 10. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 10  When buccal groove of first mandibular molar occlude distal to mesio buccal cusp of the first maxillary molar with retroclination of maxillary central incisors.  It represent 5 to 10 % of all malocclusion, by Sassouni 1971. II. Class II division II malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS II. Von-der-lindon Classification Of Angle's Class II Malocclusion Based On Severity Of Incisor Relationship II. Class II division II malocclusion
  • 11. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 11 II. Class II Division II Malocclusion Sub-division ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS - TYPE A: Maxillary central and lateral incisors are retroclined. Degree of retroclination is less severe in nature. II. Von-der-lindon Classification Of Angle's Class II Malocclusion Based On Severity Of Incisor Relationship
  • 12. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 12 II. Class II Division II Malocclusion Sub-division ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS - TYPE B: Maxillary lateral incisors are overlapping the retroclined maxillary central incisors. II. Von-der-lindon Classification Of Angle's Class II Malocclusion Based On Severity Of Incisor Relationship
  • 13. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 13 II. Class II Division II Malocclusion Sub-division ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS - TYPE C: Maxillary central and lateral incisors are retroclined and are overlapped by the maxillary canines. II. Von-der-lindon Classification Of Angle's Class II Malocclusion Based On Severity Of Incisor Relationship
  • 14. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 14 Pre-natal Factors • Genetic and congenital: • Teratogenesis • Irradiation • Intrauterine fetal posture Natal Factors • Improper forceps application during delivery can lead to condylar damage /fracture causing internal hemorrhage into the joint area. TMJ can get ankylosed or fibrosed later, leading to underdevelopment of the mandible Post-natal Factors • Traumatic injuries • Oral habits such as thumb sucking • Congenitally missing teeth Etiological Factors of Class II Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS
  • 15. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 15 Clinical Features of Class II Division I Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Extra-oral Features Shape Of The Head: Mesocephalic or Dolichocephalic Facial Form: Mesoprosopic or Euryprosopic. Facial Divergence: Posterior facial divergence. Lips: Incompetent lips. Mentolabial Sulcus: Deep . Nasolabial Angle: Decreased . Mentalis: Hyperactive. Lower Facial Height: Decreased. Profile: Convex facial profile
  • 16. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 16 Clinical Features of Class II Division I Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Radiographic Features
  • 17. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 17 Clinical Features of Class II Division I Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Intra-oral Features • Maxillary Anteriors: Proclination of maxillary anterior . • Molar Relationship: Class II molar relationship • Incisor Relationship: Class II division I incisor relationship. • Over Jet: Increased . • Over Bite: Increased . • Shape Of The Maxillary Arch: V shaped arch . • Curve Of Spee: Exaggerated . • Anterior Open Bite: May or may not be present, Depends on the persistence of deleterious oral habits. • Posterior Cross-bite & Scissor- Bite: Presence depends on persistence of habit.
  • 18. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 18 Clinical Features of Class II Division I Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Extra-oral Features FEATURES CLASS II DIV 2 Shape Of The Head: Brachycephalic head Profile Strait to mild convex Upper Lip Lower lip Competency Normal Normal or everted Competent Mentolabial sulcus Maybe deep or normal LFH Low
  • 19. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 19 Clinical Features of Class II Division I Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Intra-oral Features Molar and canine relationship Class II molar and canine relationship Incisors Centrals retroclined, laterals proclined Overjet decreased Overbite Closed bite Arch form Square U shaped Palate shallow Curve of spee deep Path of closure Backward
  • 20. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 20 Clinical Features of Class II Division I Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Radiograhic Features 1. SNA: Normal 2. SNB: Decreased 3. ANB: Increased 4. Flat mandibular plane. 5. Increased posterior facial height(s-go). 6. Short lower anterior facial height
  • 21. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 21 Clinical Features of Class II Division I Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS  Result from discrepancy in Maxillo-mandibular relationship, which May be due to;  Mandibular deficiency.  Maxillary excess,  or combinations Difference Between Dental & Skeletal Class II Skeletal Class II BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
  • 22. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 22 Clinical Features of Class II Division I Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Difference Between Dental & Skeletal Class II  Normal maxillo-mandibular relationship.  Mainly due to mesial drift of upper 6 as a result of: • Premature extraction of upper E. • Congenitally missed of upper E.  Discrepancy at inter arch tooth size; • Small or congenitally missed upper Permenant premolar (u5) lead to class II molar relationship. • Impacted or missed upper canine or 2nd premolar lead to inadequate space and then class II relationship. Dental Class II
  • 23. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 23 Management of Class II Division I Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Age At Which The Patient Is Seem Nature & Severity of The Problem Treatment Principles Depends On Three Important Factors:
  • 24. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 24 Class II MALOCCLUSIONS Young Age Growth Modification Adults Camouflage Class III MALOCCLUSIONS Young Age Growth Modification Adults Camouflage ORTHODONTICS MANAGEMENT OF SKELETAL ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS T R E A T M E N T M O D A L I T I E S
  • 25. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 25 Management of Class II Division I Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS
  • 26. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 26 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Maxillary Prognathism With Normal Mandible: Normal Maxilla With Mandibular Deficiency
  • 27. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 27 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: • Restrict The Excessively Growing Maxilla (Distalization) • Extraoral Force Using Headgear (The Most Effective Approach) Main Treatment Objectives
  • 28. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 28 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: Face bow therapy is the best treatment to restrict max. growth. Face bow applay a distal extra-oral force on the maxillary dentition and the maxilla in the magnitude of 400-600 gm perside, intermittently for a duration of 12 to 14 hours a day to bring about the desired skeletal effects. More dental movement occurs if the face bow is worn more than 16 hrs. per day at force level 300 gm or less. Patients are advised to wear the appliance in the evening and throughout the night. Headgear age of treatment is usually given at 8.5 to 10.5 years in females and 9.5 to 11.5 years in males
  • 29. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 29 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible:  Components Of Headgear: 1. Force Delivering Unit:  Face Bow.  'J'hook. 2. Force Generating Unit:  Coil Spring (Safety Module). 3. Anchor Unit:  Head Cap Or,  Neck Strap.
  • 30. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 30 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible:
  • 31. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 31 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible:
  • 32. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 32 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: • Shape Of The Head: Mesocephalic or Dolichocephalic • Facial Form: Mesoprosopic or Euryprosopic. • Lips: Incompetent lips. • Mentolabial Sulcus: Deep . • Nasolabial Angle: Decreased . • Mentalis: Hyperactive. • Profile: Convex facial profile BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Extra-oral Records:
  • 33. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 33 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Intra-oral Records:
  • 34. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 34 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Radiographic Records:
  • 35. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 35 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Radiograhic Features 1. SNA: Increased. 2. SNB: Normal. 3. ANB: Increased. 4. FMA: Increased. 5. Decreased posterior facial height(s-go). 6. Long lower anterior facial height
  • 36. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 36 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Treatment Objectives:  Restrict the maxillary forward downward growth.  Correct the increased dental over-jet. Treatment Steps:  Two Stage Treatment Protocols Were Followed:  1st Removable Stage: High-pull headgear with removable acrylic maxillary splint for 9 months for maxillary distalization.  2nd Fixed Stage: SWA reinforced with High-pull headgear for anchorage
  • 37. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 37 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
  • 38. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 38 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Intra-oral Records:
  • 39. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 39 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Extra-oral Records: • Shape Of The Head: Mesocephalic or Dolichocephalic • Lips: Competent lips. • Mentolabial Sulcus: Normal . • Nasolabial Angle: Increased . • Mentalis: Normal. • Profile: Straight to Convex facial profile Extra-oral Records:
  • 40. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 40 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Intra-oral Records:
  • 41. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 41 Management of Class II Division I Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: Radiographic Records: 1. SNA: Decreased. 2. SNB: Normal. 3. ANB: Decreased.
  • 42. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 42 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Case Report: • Egyptian male with 10 years old. • Chief complaint of bad smile & improper occlusion functions. • Extra-oral records show deficient mandible with decreased anterior lower facial height & incompetent lips. • Intra-oral records show increased over-jet with crowded & extruded lower anterior teeth.
  • 43. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 43 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS • Shape Of The Head: Mesocephalic or Dolichocephalic • Lips: Incompetent lips. • Mentolabial Sulcus: Deep . • Nasolabial Angle: Decreased . • Mentalis: Hyperactive. • Profile: Convex facial profile Extra-oral Records:
  • 44. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 44 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Intra-oral Records:
  • 45. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 45 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Radiographic Records: 1. SNA: Increased. 2. SNB: Decreased. 3. ANB: Increased.
  • 46. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 46 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Treatment Objectives:  Activate the mandible forward downward growth.  Correct the increased dental over-jet. Treatment Steps:  Two Stage Treatment Protocols Were Followed:  1st Removable Stage: Twin-block removable apliance for 9 months for mandible forward downward growth activation.  2nd Fixed Stage: SWA reinforced with fixed functional appliance for anchorage & continue mandible forward downward movement. Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible:
  • 47. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 47 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS  The primary goal is to enhance the mandibular growth using functional appliances like activator, frankel, herbest and various bite jumping devices.  They work by unloading the mandibular condyle from the glenoid fossa to a more forward position inducing altered muscular activity.  This tend to enhance the growth in the condyle region.
  • 48. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 48 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: Twin-Block Appliance  Twin-block appliance is composed of maxillary and mandibular acrylic retainers that fit tightly against the teeth, alveolus and adjacent supporting structures.  Delta clasps are used bilaterally to anchor the maxillary appliance to the first permanent molars and 0.030 inch  Ball clasps are placed in the interproximal areas anteriorly REMOVABLE FUNCTIONAL APPLIANCES THERAPY
  • 49. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 49 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: Twin-Block Appliance REMOVABLE FUNCTIONAL APPLIANCES THERAPY
  • 50. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 50 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: REMOVABLE FUNCTIONAL APPLIANCES THERAPY Twin-Block Appliance
  • 51. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 51 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: Twin-Block Appliance  Anchorage: The precise clasp configuration depends on the type of deciduous or permanent teeth and number of teeth present at the time of appliance construction.  Bio-mechanics: It produce increase in mandibular length, incisor proclination and variations in lower anterior facial height.  The posterior bite blocks of the twin block appliance can be trimmed to facilitate the eruption of the lower posterior teeth in patient with a deep bite and an accentuated curve of Spee.  The blocks also can be left untouched to prevent the eruption of the posterior teeth in patients with a tendency toward an anterior open bite. REMOVABLE FUNCTIONAL APPLIANCES THERAPY
  • 52. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 52 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: Twin-Block Appliance REMOVABLE FUNCTIONAL APPLIANCES THERAPY
  • 53. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 53 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: FIXED FUNCTIONAL APPLIANCES THERAPY HERBST DESIGN The Herbst appliance is a fixed functional orthopedic appliance having passive tube and plunger system with the exact length of the tube determining the amount of anterior mandibular development. The tube is attached to a maxillary posterior root, whereas the plunger is fixed anteriorly to the mandibular dentition and slides through the tube during opening and closing movements. HERBST APPLIANCE
  • 54. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 54 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: FIXED FUNCTIONAL APPLIANCES THERAPY HERBST APPLIANCE
  • 55. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 55 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: FIXED FUNCTIONAL APPLIANCES THERAPY HERBST APPLIANCE Indications: • 1. Dental class II malocclusion. • 2. Deep bite with retroclined mandibular incisors. • 3. Skeletal class II mandibular deficiency Contraindication: • 1. Dental and skeletal open bites. • 2. Cases prone to root resorption. Disadvantages: • 1. High cost. • 2. Herbst appliance associated with more chances of breakage. • 3. Less patient acceptance
  • 56. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 56 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS • Shape Of The Head: Mesocephalic or Dolichocephalic • Lips: Competent lips. • Mentolabial Sulcus: Normal . • Nasolabial Angle: Increased . • Mentalis: Normal function. • Profile: Straight to Convex facial profile Extra-oral Records:
  • 57. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 57 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Radiographic Records: 1. SNA: Decreased. 2. SNB: Increased. 3. ANB: Decreased.
  • 58. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 58 Management of Class II Division II Malocclusion During Mixed Dentition Period (Growing Period) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II With Normal Maxilla & Deficient Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Intra-oral Records:
  • 59. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 59 Management of Dento-alveolar Class II Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Management Of Dento-alveolar Class ΙΙ
  • 60. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 60 Management of Dento-alveolar Class II Malocclusion With Normal Skeletal Relationship (Growing Period). ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Dento-alveolar Class ΙΙ BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Management Is Based Mainly On The Etiological Factors: 2-In prematurely extracted cases where mesial drift has occurred, space regaining device are to be used 1-Avoid premature extraction and if necessary space should maintained to prevent mesial drift in the molar.
  • 61. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 61 Management of Dento-alveolar Class II Malocclusion With Normal Skeletal Relationship (Growing Period). ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS THEY FALL UNDER TWO CATEGORY: B- Extra-oral appliances for distalization can be done using headgear A- Intra-oral appliances for distalization , include pendulum, distal slide appliance or springs. Management Of Dento-alveolar Class ΙΙ
  • 62. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 62 Management of Dento-alveolar Class II Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Management Of Dento-alveolar Class ΙΙ  Premature Tooth Loss With Adequate Space: Space Maintenance :  Band-and-Loop Space Maintainers.
  • 63. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 63 Management of Dento-alveolar Class II Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Early loss of primary teeth
  • 64. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 64 Management of Dento-alveolar Class II Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Management Of Dento-alveolar Class ΙΙ
  • 65. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 65 Class II MALOCCLUSIONS Young Age Growth Modification Adults Camouflage Class III MALOCCLUSIONS Young Age Growth Modification Adults Camouflage ORTHODONTICS MANAGEMENT OF SKELETAL ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS T R E A T M E N T M O D A L I T I E S
  • 66. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 66 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Class II Division I Malocclusion In Adult Patients Maxillary Prognathism Mandibular Retrognathism Combinations CLASSIFCATIONS
  • 67. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 67 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Non Accepted Smile Display Due To Maxillary Prognathism Two Treatment Protocols Available: Retraction Of Anterior Segment Into Premolars Extraction Spaces Distalization Of The Whole Maxillary Segment A- Maxillary Prognathism
  • 68. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 68 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Extra-oral Features Shape Of The Head: Mesocephalic or Dolichocephalic Facial Profile: Convexdivergence. Lips: Incompetent lips. Mentolabial Sulcus: Deep . Nasolabial Angle: Decreased .
  • 69. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 69 ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Intra-oral Features • Maxillary Anteriors: Proclination of maxillary anterior . • Molar Relationship: Class II molar relationship • Incisor Relationship: Class II division I incisor relationship. • Over Jet: Increased . • Over Bite: Increased . • Shape Of The Maxillary Arch: V shaped arch . • Curve Of Spee: Exaggerated . Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
  • 70. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 70 ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) Radiographic Features 1. SNA: Increased. 2. SNB: Normal. 3. ANB: Increased. 4. FMA: Increased. 5. Decreased posterior facial height(s-go). 6. Long lower anterior facial height
  • 71. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 71 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Treatment Objectives:  Retract the maxilla.  Correct the increased dental over-jet. Treatment Steps:  Extraction of 1st premolars.  Retraction Of Anterior Segment Into Premolars Extraction Spaces
  • 72. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 72 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Treatment Progress:
  • 73. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 73 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Treatment Progress:
  • 74. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 74 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Treatment Progress:
  • 75. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 75 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Treatment Progress:
  • 76. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 76 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Two Treatment Protocols Available: Retraction Of Anterior Segment Into Premolars Extraction Spaces Distalization Of The Whole Maxillary Segment B- Mandibular Retrusion Management Of Class ΙΙ Div I With Normal Maxilla & Retruded Mandible:
  • 77. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 77 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Normal Maxilla & Retruded Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Maxillary Distalization MEAW Bio-mechanics
  • 78. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 78 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Normal Maxilla & Retruded Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS MEAW Bio-mechanics Maxillary Distalization
  • 79. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 79 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Normal Maxilla & Retruded Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Maxillary Distalization TADs Bio-mechanics
  • 80. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 80 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div I With Maxillary Prognathism & Normal Mandible: BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Class II Division I Malocclusion In Adult Patients Maxillary Prognathism Mandibular Retrognathism Combinations CLASSIFCATIONS
  • 81. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 81 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS In Case Of A Combinations Of Increased Maxilla & Mandible
  • 82. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 82 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS I n C a s e O f A C o m b i n a t i o n s O f I n c r e a s e d M a x i l l a & M a n d i b l e Two Treatment Objecties: Retraction Of Maxillary Anterior Segment Retraction Of Mandibular Anterior Segment C- Maxillary & Mandibular Excess
  • 83. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 83 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS I n C a s e O f A C o m b i n a t i o n s O f I n c r e a s e d M a x i l l a & M a n d i b l e • Shape Of The Head: Dolichocephalic • Facial Profile: Convex divergence. • Lips: Incompetent lips. • Mentolabial Sulcus: Deep . • Nasolabial Angle: Decreased . Extra-oral Features
  • 84. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 84 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS I n C a s e O f A C o m b i n a t i o n s O f I n c r e a s e d M a x i l l a & M a n d i b l e • Shape Of The Head: Dolichocephalic • Facial Profile: Convex divergence. • Lips: Incompetent lips. • Mentolabial Sulcus: Deep . • Nasolabial Angle: Decreased . Extra-oral Features
  • 85. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 85 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS I n C a s e O f A C o m b i n a t i o n s O f I n c r e a s e d M a x i l l a & M a n d i b l e Radiographic Features 1. SNA: Increased. 2. SNB: Increased. 3. ANB: Increased. 4. FMA: Increased. 5. Decreased posterior facial height(s-go). 6. Long lower anterior facial height
  • 86. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 86 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS I n C a s e O f A C o m b i n a t i o n s O f I n c r e a s e d M a x i l l a & M a n d i b l e Intra-oral Records
  • 87. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 87 Management of Class II Division I Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS I n C a s e O f A C o m b i n a t i o n s O f I n c r e a s e d M a x i l l a & M a n d i b l e Treatment Progress:
  • 88. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 88 Management of Class II Division II Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Management Of Class ΙΙ Div II In Permanent Dentition (Adult Patients): BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS
  • 89. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 89 Management of Class II Division II Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Treatment Objectives Correct Molar & Canine Relationships Relief The Crowded Dentition Correct Anterior Teeth Torque Management Of Class ΙΙ Div II In Permanent Dentition (Adult Patients):
  • 90. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 90 Extra-oral Features FEATURES CLASS II DIV 2 Shape Of The Head: Brachycephalic head Profile Strait to mild convex Upper Lip Lower lip Competency Normal Normal or everted Competent Mentolabial sulcus Maybe deep or normal LFH Low Management Of Class ΙΙ Div II In Permanent Dentition (Adult Patients): Management of Class II Division II Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS
  • 91. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 91 Clinical Features of Class II Division I Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Radiographic Features 1. SNA: Normal 2. SNB: Decreased 3. ANB: Increased 4. Flat mandibular plane. 5. Increased posterior facial height(s-go). 6. Short lower anterior facial height
  • 92. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 92 Management of Class II Division II Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Radiographic Records: Management Of Class ΙΙ Div II In Permanent Dentition (Adult Patients):
  • 93. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 93 Management of Class II Division II Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Intra-oral Records: Management Of Class ΙΙ Div II In Permanent Dentition (Adult Patients):
  • 94. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 94 Clinical Features of Class II Division I Malocclusion ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS Intra-oral Features Molar and canine relationship Class II molar and canine relationship Incisors Centrals retroclined, laterals proclined Overjet decreased Overbite Closed bite Arch form Square U shaped Palate shallow Curve of spee deep Path of closure Backward
  • 95. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 95 Management of Class II Division II Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Management Of Class ΙΙ Div II In Permanent Dentition (Adult Patients): Treatment Progress:
  • 96. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 96 Management of Class II Division II Malocclusion In Permanent Dentition (Adult Patients) ORTHODONTICS MANAGEMENT OF ANTRO-POSTERIOR MALOCCLUSIONS BY, DR. AHMED SAFWAT ORTHODONTIC CENTERS Treatment Progress: Management Of Class ΙΙ Div II In Permanent Dentition (Adult Patients):
  • 97. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 97 ORTHODONTICS MANAGEMENT OF CLASS II MALOCCLUSIONS A H M E D S A F W A T EVENT SPEAKER: DR. AHMED SAFWAT BDS, DDS, MSC ORTHODONTICS, EOS AAO. • Orthodontics contemporary ( William R. Proffit). • Hand book of Orthodontics (Robert Moyers). • ORTHODONTICS Principles and Practice( Basavaraj Subhashchandra Phulari). • FLAVIO URIBE, RAVINDRA NANDA, Treatment of Class II, Division 2 Malocclusion in Adults: Biomechanical Considerations 2003 JCO. • Paulo Renato Carvalho Ribeiro, Angle Class II, Division 2, malocclusion with deep overbite, Dental Press J. Orthod. 132-143, Jan./Feb. 2010. • Hande Görücü Coşkuner, İlken Kocadereli, Non extraction Treatment OF An Adult With CLASS II DIVISION 2 Malocclusion, CLINICAL DENTISTRY AND RESEARCH 2013; 37(3): 49- 56 References:
  • 98. 9/9/2021 Antero-Posterior Malocclusions, Ahmed Safwat 98 ORTHODONTICS MANAGEMENT OF CLASS II MALOCCLUSIONS A H M E D S A F W A T EVENT SPEAKER: DR. AHMED SAFWAT BDS, DDS, MSC ORTHODONTICS, EOS AAO.