Extraction of Teeth
((Exodontia
Definition

Main Topics

:General considerations
• Factors complicating dental extraction.
• Indications.
• Contraindications.
• Preoperative assessment before extraction.
:Methods and Techniques of dental extraction
• Intra-alveolar (forceps extraction(.
• Trans-alveolar (Surgical extraction(.
Anatomical considerations
.Extraction of deciduous teeth
.Post-extraction procedures
.Complications of dental extraction
Definition
.–Tooth extraction
The ideal tooth extraction is the painless removal
of the whole tooth, or tooth-root, with minimal
trauma to the investing tissues, so that the
wound heals uneventfully and no postoperative
.prosthetic problem is created
General considerations
:Factors complicating dental extraction
1.
2.
3.
4.
5.
6.

Restriction by the lips and cheeks.
Movement of the tongue and macroglossi.
Movement of the mandible.
Communication of the mouth with the pharynx and
larynx.
Flooding of the oral cavity with micro-organisms.
The related structures such as floor of the mouth,
tongue, hard and soft palate, and even the tonsils
may be damaged.
:Indications of teeth extraction
1. Unrestorative teeth because of
anatomical or economical factors,
which may be affected by:
•
•
•
•
•
•

Deep caries.
Severe abrasion.
Acute or chronic pulpitis due to trauma or
infection.
Apical pathological conditions.
Teeth interfering with the stability and fitness of
dental restorations.
Teeth causing chronic trauma or irritation to the
soft tissues.
:Indications of teeth extraction
2. Severe periodontal disease.
3. Before radiation therapy in cancer patients.
4. Malposed, supernumerary, and crowded
teeth.
5. Impacted teeth.
6. Traumatic avulsion or intrusion due to
fracture of the alveolar bone.
7. Teeth involved in the fracture lines of the
jaws.
Contraindications to the extraction of teeth
Systemic contraindications before consultation with the patient’s
:physician
1. Cardiac pt:
Rheumatic heart disease.
Coronary heart disease.
2. Blood dyscrasias:
.Anemia.
Leukemia
3. Diabetes.
4. Nephritis.
5. Toxic goiter.
6. Jaundice.
7. During pregnancy.
:Local contraindications
1. Acute gingival or pericoronal infection.
2. Extraction of maxillary molars and premolars during acute
maxillary sinusitis.
3. Teeth related to malignant tumors.
Preoperative assessment
:Clinical examination
1.
2.
3.
4.

Medical and dental history.
Examination of the side of complaint.
Examine the tooth condition.
Examine the relation of the tooth to related
important structures
5. Examine the condition of the oral hygiene.
Requirements of Pre-extraction
Radiograph
A-It should show the whole root structure
B-It should show the bone investing
C It should show the relation to any
important anatomical structure
Types of Radiograph :
A-Intra-oral radiograph
B-Extra-oral radiograph
Dental radiographs
Requirements and Indications of dental
radiographs: They are mainly indicated in the
.following conditions

1.History of
difficult
extraction.
2. Tooth abnormally resistant to forceps
extraction.
. Teeth related to the maxillary antrum or inferior dental n
4. Third molar teeth.

5. Heavily restored and pulpless teeth.
6. Isolated upper molar for a long time.
7. Any tooth has been subjected to trauma.
8. Partially-erupted and un-erupted tooth.

9. Any tooth decided to be removed surgically.
10. Any condition which predisposes to dental or
alveolar abnormality.
.Values of dental radiographs
:Types which commonly used
.Intra-oral. 1
.Extra-oral. 2

Panoramic film
Postero-anterior (PA( view
Lateral view
Oblique lateral view

Anterior

Posterior
Occipto-mental view
. Choice of anesthesia
. Sterilization
: Methods of extraction
• Intra-alveolar.
• Trans-alveolar.
: General arrangements
• Position of the patient.
• Position of the dentist.
• Preoperative preparation of the mouth.
: Mechanical principles of extraction
• Expansion of the walls of the bony socket.
• The use of a lever and fulcrum.
• The insertion of wedge or wedges between the tooth-root
and the bony socket wall.
Techniques of Extraction
1- INTRA-ALVEOLAR EXTRACTION
FORCEPS or CONVENTIONAL
This is by using dental forceps and
elevators.
2- TRANS-ALVEOLAR EXTRACTION
This is by using Surgical technique
Intra-alveolar extraction
Forceps

Elevator

• Parts of the dental forceps:
A, Blades.
B, Joints.
C, Handles.

• Requirements of the dental forceps
Forceps Style

American
English
Forceps design
Upper forceps
Lower Forceps
Upper
forceps

Anterior

Premolar

R. Molar

Premolar

Anterior

Bayonet

Lower
forceps
Molar

L. Molar
Requirement of the Dental Forceps
INTRA-ALVEOLAR EXTRACTION






All forceps has blades
and handles united by a
hinge joint.
1-The handles must
possess a suitable size to
rest comfortably in the
operator’ s hand and
should long enough to
afford use of strong and
steady extraction
movements. Also it must
be suitable in shape and
design to suit the area of
the tooth.


Upper Forceps



Upper Anterior
Upper Premolar
Upper Left Molar
Upper Right Molar
Bayonet
Lower Forceps
Lower Anterior
Lower premolar
Lower molar









INTRA-ALVEOLAR EXTRACTION

 2- The blades must be
sharp to be introduce
under the free gum
margin. In multirooted
teeth the blades should
be designed to grip the
different root patterns
 The angulation design of
the blades in relation to
the joint and handles
should be made to
facilitate gripping of the
tooth at CEJ
 3-The joint of the
dental forceps must
have free movement
for easy manipulation
but must be free from
rolling movement

Parts of dental forceps
A-Blades
B-Joint
C-Handles
Tooth Extraction Forceps
 Instruments are varied based on
 Crown

shape
 Root shape
 Tooth size
 Location in the mouth
 Distinguished by
 Angle of and notches on the beak
 Instrument contour
 Number
Proper selection of the suitable
forceps
Maxillary teeth
 Mandibular
teeth
 Single rooted
teeth
 Double rooted
teeth
 Triple rooted
teeth

Types of Dental
:Forceps
.Straight e.g. 1
Upper anterior

.Curved e.g. 2
All lowers and
upper posteriors
Periosteal Elevators
 Used to separate and retract soft tissue
from teeth and bone.
Molt 9
Woodson 1
Freer elevator
Rules of using dental forceps
 1-The patient is seated comfortably in the
chair after adjusting the chair to the
appropriate height , the apron fitted
around the patient and aseptic technique
should be followed , inspecting the tooth to
be extracted and the instruments required
for operation are selected
Rules of using dental forceps

 2-The forceps are then picked up in the
operator’ s right hand with the thumb
finger supporting it at its joint and the
forceps handles in the palm of the hand
this position gives the operator firm grip
and fine control over the instrument
Rules of using dental forceps
 In the upper molar and premolar forceps the
curved side of the handles should rest in the
palm of the hand
 3-In extraction of maxillary teeth , retract the lip
and cheek and support the alveolar process
using the thumb and index finger of the left hand
 4-In extraction of the left mandibular teeth , the
middle and the index fingers of the left hand
grips and supports the alveolar process around
the tooth being extracted, while the thumb is
used to support the mandible
Rules of using dental forceps
 In extraction of the right mandibular teeth
the operator should stand at the right side
and behind the chair and the left hand
comes from the other side to support the
alveolus with the thumb and index fingers
while the other fingers support the
mandible
Rules of using dental forceps
 The displacement of the tooth from its socket : When the

blades have been forced along the root with firm grip and
the tooth movement buccal outward and lingual inward
with pressure that should be firm smooth and controlled
 Accordingly the outward movement is initiated in the
extraction of all the maxillary and mandibular teeth with
exception of mandibular third and relatively mandibular
second molars .
 Inward movement is initiated in the extraction of lower 2 nd
and 3rd molars due to the fact that the lingual alveolar
bone plate is thinner than in the buccal plate .As a
general rule the movement is initiated towards the least
resistance site.
Rules of using dental forceps
 However there might be some deviation
from the general rule , when the tooth is
involved in very deep decay or abnormal
configuration of root .
 In deeply decayed teeth it is advisable to
initiate the extraction movement towards
the decayed side of the tooth and keeping
the force of movement more stressed
towards decayed side
Rules of using dental forceps
 In extraction of teeth with conical roots
which usually the upper central incisors
and the lower second premolars and
mesiodens, these teeth could be detached
from their sockets by primary rotatory
movement. If such a tooth felt to resist
rotation it should be moved buccolingually.
 Also rotatory secondary movement could
be used after the tooth has been
completely loosened.
Rules of using dental forceps
 The final movement of the tooth: normally after
few buccolingual movements, the tooth is felt to
have been loosened and rising out of its socket ,
when this occurs the final movement should
always be directed outward in order to avoid
traumatizing the teeth of opposing jaw.
 If gum is found to be attached to the tooth this
adhesion should be carefully dissected and
avoid pulling of the tooth by dental forceps to
avoid soft tissue laceration and exposure of the
alveolar bone
 Extraction of maxillary
incisors
 A-Apical grip
 B-Labial movement
 C-Palatal movement
 D,E-Dilation of the
socket and final
delivery
 Extraction of maxillary
 premolars:





A-Apical grip
B-Labial movement
C-Palatal movement
D,E-Dilation of the
socket and final
delivery
 Extraction of maxillary
molars:
 A-Apical grip
 B-Labial movement
 C-Palatal movement
 D,E-Dilation of the
socket and final
delivery
 Extraction of mandibular
Incisors :
 A-Apical grip
 B-Labial movement
 C- Lingual movement
 D,E-Dilation of the
socket and final delivery
 Extraction of mandibular
 premolar :
 A-Apical grip
 B-Labial movement
 C-Lingual movement
 D-Primary rotatory
movement in 2nd premolar
only
 E,F-Dilation of the socket
and final delivery






Extraction of mandibular
molar :
A-Apical grip
B-Buccal movement
C- Lingual movement
D,E-Dilation of the
socket and final delivery
Rules of using dental forceps
• Catch the root not
the crown
• Parallel to the long
axis of the tooth
• Initial movement
• Deep grip
• Firm grip
• Principal movement
• Final movement
Mechanical principles involved in
tooth extractions
Applying displacing
force to a tooth:
Direct
application of a
forceps
Indirect via a
fulcrum
(elevators)
Expansion of the
socket
Technique of
Forceps
Extraction
1- Position of
the Operator
Grip of the- 2
extraction forceps

Wright

Wrong
Wright

Wrong
Wrong
Application of the Forceps - 3
(
(Grip of the tooth
Proper function and Position of Left Hand- 4
Mechanical principles of forceps extraction

Wedging

Expansion of socket walls
Extraction
movements
Anatomical Considerations
The Upper Anteriors

Central incisor

Lateral incisor

Canine
The Upper Posteriors

First Premolar

First Molar

Second Premolar

Second Molar

Third Molar
The Lower Teeth

Incisors

Canine

Premolars
First Molar

Second Molar

Third Molar
Extraction
of maxillary
molars
Extraction of
mandibular 1st
& 2nd molars
• Post-extraction Procedures (Recommendations(
• Order of Extraction
• Extraction of deciduous teeth:
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It is the music of the
!heart
Removal of Fractured Root
 Fractured root should be removed at the time of
extraction because it may cause the following
complication:
 1-Large roots in the alveolus will be localized
source of inflammation
 2-It may cause residual infection
 3-RR may act as a mechanical irritant and set up
an inflammatory reaction which may give rise to
neuralgic pain of obscure origin
Reason of Root Breakage
1-Faulty application of instruments or
extraction movements, wrong pattern
forceps on a particular tooth may
cause its breakage. Improper grip ,
inadequate extraction movements.
Sudden or jerky extraction movement,
gripping of the crown too superficially
and not at CEJ
Reason of Root Breakage
2-Pulpless teeth, badly decayed, teeth with
abnormal root pattern or Hypercementosis
3-Excessive density of the surrounding bone
due condensing osteitis , or isolated tooth
and in old age patient
4-Lake of perfect control of instrument or
interference from the patient
Removal of broken single
rooted teeth
• This includes the maxillary incisors and canines
and mandibular incisors, canines and premolars:
• Removal of Roots Broken at the Gingival
Margin:
• A-These root may be extracted with forceps ,
with careful adaptation of the beaks under the
gingival margin
• B-Straight Apexo elevator or Coupland .The
angulated Apexo elevator used to remove
mandibular single rooted teeth apply moderate
force distal as will as mesial of the root till
complete delivery of the RR
Removal of the root broken
halfway of the apex
• Generally, these are
the cases which
require the reflection
of mucoperiosteal flap
and removal of buccal
and lingual alveolar
bone what we call it
TRANS-ALVEOLAR
SURGICAL
EXTRACTION
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… !hear
It is the power of
Intelligence
Removal of Roots of Upper and
Lower Molars
• 1-Removal of Broken Root of
Mandibular Molars :
1-When both roots are fractured at the
gingival line , the root trunk is still
present a lower premolar forceps can
be used, its beaks should be inserted
as far under the gingival margin
Removal of Roots of Upper and
Lower Molars
• 2-The other technique for removal of such
roots is a drill used to separate the roots
after this Apexo elevator may be used to
loosen the mesial root by inserting it into a
space between the lamia dura and the
surface of the root from the mesial and
distal surfaces until loosening of the root
occur . The other root could extracted by
using Winter or Cryer elevators
Removal of Broken Roots of
Maxillary Molars
• Maxillary molars roots may be removed by
grasping the palatal and the distobuccal roots
with the upper roots forceps or with Bayonet
Forceps .
• This procedure will either remove all three roots
or cause breaking of mesiobuccal root which
then can be removed by upper root forceps or
with Warwick James curved elevator inserted
into empty disto-buccal socket
Removal of Broken Roots of
Maxillary Molars
• Another technique is first
to separate the fused
roots with drill in the
form of “ Y “ shape and
then remove them
individually by mean of
forceps or by Warwick
James curved elevator
between the separated
roots.
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Post-extraction care and instructions
Post-extraction care
• Inspection of the socket
• Removal of debris and any
tooth fragments
• Squeezing the socket
• Insuring haemostasis (Gauze
pack)
• Remove any septic granulation
tissue or granuloma from the
socket
• Trim and smooth any sharp
edges from the alveolar plate
of bone
• Clean the patient lips and face.
Post-extraction Instructions
1-Keep biting on gauze, sponges for about one
hour after extraction, by the time if bleeding is
controlled, discontinue pressure pack
2-No mouth wash for at least 24 hours after
extraction
3-Avoid any hot food or drink for the rest of the day
to prevent bleeding
4-The diet must be cold fluids or soft food to avoid
irritation of the wound
5-Avoid any hard labour and have an adequate
rest
Dental Elevators
Use of Elevators in Extraction of
Teeth
.Parts of Elevator
:Work Principles
• Levering.
• Wedging.
• Wheel and Axle principle.
Wheel & Axle

Wedging
Rules
• Palm grip
• Don’t use the neighbouring
tooth as a fulcrum
• Don’t use the buccal or lingual
plate of bone as a fulcrum
• Use the left hand for
reflection, guard and support
• Take care of the surrounding
vital structures
• Follow respectfully, root
curvature
Principles of Use of Elevator
• Wedge principle: straight elevator
• Lever principle: Copland elevator
• Axel and Wheel principle: Cryer’s elevator
Principles of Use of Elevator
Wedge Principle
Some elevators are designed primarily to
be used as a wedge e.g. Apexo,and
coupland. This elevators are forced
between the root of the tooth and the
investing bony tissue parallel to the long
axis of the tooth
Principles of Use of Elevator
Lever Principle:
On applying this principle the elevator is a
lever of the first class the position of the
fulcrum is between the effort and
resistance in order to obtain a mechanical
advantage in a lever of the first class the
effort arm on one side of the fulcrum, must
be longer than the resistance arm
Principles of Use of Elevator
Wheel and Axle Principle
The wheel and axle is a
simple machine the effort
is applied to the
circumference of a wheel
which turn the axle so as
to raise a weight. It could
be used as a sole work
principle in removing the
teeth, it is also used in
conjunction with a wedge
or lever principles
:Classification
•According to Form.
•According to Use.

Different Forms of Elevators
Handling and Application of the Elevator
Dental Elevators
• Parts of Elevators:
1-Handle
2-Shank
3-Blade
Dental Elevators Classification
• I-According to use:
1-Elevators designed to remove the entire
tooth, straight elevators, hospital pattern
and winter elevator
2-Elevators designed to remove roots
broken off at the gingival line e.g. Apexo
elevator , Coupland and lido lavien
elevators
3-Elevators designed to remove roots
broken off half way to the apex e.g. curved
elevator hospital pattern, winter elevator
and Apexo elevator
Dental Elevators Classification
• II-According to Form:
1-Straight all types
2-Curved right and left
3-angulated right and left
4-Cross bar “ handle at right angle to the
shank”
Types of Dental
:Elevators
.Straight e.g. 1
Copland's
.Curved e.g. 2
Cryer’s
Root Elevators
• Used to loosen and frequently remove
teeth and roots.
– a small straight elevator
– a large straight elevator

–
Dental Elevator
”Cross bar “winter

Curved apexo
Choice of elevators
•
•
•
•

Remaining tooth structure
Space available
Availability and position of solid fulcrum
Direction of the required movement
Characteristics
• Has no joints
• Needs a fulcrum to
work
• Has to be wedged
between bone and
tooth
• Exerts less directional
force on the tooth
• Different sizes and
shapes
Indications of use
 Breaking down the periodontal attachment
 Luxation or removal of full tooth
 Luxation and removal of remaining roots
 Bone removal
 Mucoperiosteal elevation
Danger in the Use of Elevators









1-Loosening or extracting the adjacent teeth
2-Fracture the alveolar process or fracturing the
mandible
3-Penetrating the maxillary antrum or forcing the
root into the antrum
4-Forcing a root a root of a mandibular molar
through lingual plate of the mandible
5-Damage of soft tissues by slipping of the tip of
the elevator
Point to remember in
extraction of teeth
 Never refer to the extraction of tooth as a
“simple extraction”. You may find yourself
in the embarrassing position of trying to
explain to the patient why this simple
extraction taking so much time and effort
 Anticipate breakage by knowing all reason
why root and crown break. Forewarn the
patient of the possibility of breakage or
fracture
.Rules in the use of Elevators
.Dangers in the use of Elevators
Removal of Fractured Roots

.Reasons for Removal
.Reasons of Root Breakage
.Techniques of Root Removal
Exodontia
Exodontia
Exodontia

Exodontia

  • 2.
  • 3.
    Definition Main Topics :General considerations •Factors complicating dental extraction. • Indications. • Contraindications. • Preoperative assessment before extraction. :Methods and Techniques of dental extraction • Intra-alveolar (forceps extraction(. • Trans-alveolar (Surgical extraction(. Anatomical considerations .Extraction of deciduous teeth .Post-extraction procedures .Complications of dental extraction
  • 4.
    Definition .–Tooth extraction The idealtooth extraction is the painless removal of the whole tooth, or tooth-root, with minimal trauma to the investing tissues, so that the wound heals uneventfully and no postoperative .prosthetic problem is created
  • 5.
    General considerations :Factors complicatingdental extraction 1. 2. 3. 4. 5. 6. Restriction by the lips and cheeks. Movement of the tongue and macroglossi. Movement of the mandible. Communication of the mouth with the pharynx and larynx. Flooding of the oral cavity with micro-organisms. The related structures such as floor of the mouth, tongue, hard and soft palate, and even the tonsils may be damaged.
  • 6.
    :Indications of teethextraction 1. Unrestorative teeth because of anatomical or economical factors, which may be affected by: • • • • • • Deep caries. Severe abrasion. Acute or chronic pulpitis due to trauma or infection. Apical pathological conditions. Teeth interfering with the stability and fitness of dental restorations. Teeth causing chronic trauma or irritation to the soft tissues.
  • 7.
    :Indications of teethextraction 2. Severe periodontal disease. 3. Before radiation therapy in cancer patients. 4. Malposed, supernumerary, and crowded teeth. 5. Impacted teeth. 6. Traumatic avulsion or intrusion due to fracture of the alveolar bone. 7. Teeth involved in the fracture lines of the jaws.
  • 8.
    Contraindications to theextraction of teeth Systemic contraindications before consultation with the patient’s :physician 1. Cardiac pt: Rheumatic heart disease. Coronary heart disease. 2. Blood dyscrasias: .Anemia. Leukemia 3. Diabetes. 4. Nephritis. 5. Toxic goiter. 6. Jaundice. 7. During pregnancy. :Local contraindications 1. Acute gingival or pericoronal infection. 2. Extraction of maxillary molars and premolars during acute maxillary sinusitis. 3. Teeth related to malignant tumors.
  • 9.
    Preoperative assessment :Clinical examination 1. 2. 3. 4. Medicaland dental history. Examination of the side of complaint. Examine the tooth condition. Examine the relation of the tooth to related important structures 5. Examine the condition of the oral hygiene.
  • 10.
    Requirements of Pre-extraction Radiograph A-Itshould show the whole root structure B-It should show the bone investing C It should show the relation to any important anatomical structure Types of Radiograph : A-Intra-oral radiograph B-Extra-oral radiograph
  • 11.
    Dental radiographs Requirements andIndications of dental radiographs: They are mainly indicated in the .following conditions 1.History of difficult extraction.
  • 12.
    2. Tooth abnormallyresistant to forceps extraction.
  • 13.
    . Teeth relatedto the maxillary antrum or inferior dental n
  • 14.
    4. Third molarteeth. 5. Heavily restored and pulpless teeth.
  • 15.
    6. Isolated uppermolar for a long time.
  • 17.
    7. Any toothhas been subjected to trauma.
  • 18.
    8. Partially-erupted andun-erupted tooth. 9. Any tooth decided to be removed surgically.
  • 19.
    10. Any conditionwhich predisposes to dental or alveolar abnormality.
  • 20.
    .Values of dentalradiographs :Types which commonly used .Intra-oral. 1
  • 21.
  • 22.
  • 23.
  • 24.
  • 25.
  • 26.
    . Choice ofanesthesia . Sterilization : Methods of extraction • Intra-alveolar. • Trans-alveolar. : General arrangements • Position of the patient. • Position of the dentist. • Preoperative preparation of the mouth. : Mechanical principles of extraction • Expansion of the walls of the bony socket. • The use of a lever and fulcrum. • The insertion of wedge or wedges between the tooth-root and the bony socket wall.
  • 28.
    Techniques of Extraction 1-INTRA-ALVEOLAR EXTRACTION FORCEPS or CONVENTIONAL This is by using dental forceps and elevators. 2- TRANS-ALVEOLAR EXTRACTION This is by using Surgical technique
  • 29.
    Intra-alveolar extraction Forceps Elevator • Partsof the dental forceps: A, Blades. B, Joints. C, Handles. • Requirements of the dental forceps
  • 30.
  • 31.
  • 32.
  • 33.
  • 34.
  • 35.
    Requirement of theDental Forceps INTRA-ALVEOLAR EXTRACTION    All forceps has blades and handles united by a hinge joint. 1-The handles must possess a suitable size to rest comfortably in the operator’ s hand and should long enough to afford use of strong and steady extraction movements. Also it must be suitable in shape and design to suit the area of the tooth.
  • 37.
     Upper Forceps  Upper Anterior UpperPremolar Upper Left Molar Upper Right Molar Bayonet Lower Forceps Lower Anterior Lower premolar Lower molar        
  • 38.
    INTRA-ALVEOLAR EXTRACTION  2-The blades must be sharp to be introduce under the free gum margin. In multirooted teeth the blades should be designed to grip the different root patterns  The angulation design of the blades in relation to the joint and handles should be made to facilitate gripping of the tooth at CEJ
  • 39.
     3-The jointof the dental forceps must have free movement for easy manipulation but must be free from rolling movement Parts of dental forceps A-Blades B-Joint C-Handles
  • 40.
    Tooth Extraction Forceps Instruments are varied based on  Crown shape  Root shape  Tooth size  Location in the mouth  Distinguished by  Angle of and notches on the beak  Instrument contour  Number
  • 41.
    Proper selection ofthe suitable forceps Maxillary teeth  Mandibular teeth  Single rooted teeth  Double rooted teeth  Triple rooted teeth 
  • 42.
    Types of Dental :Forceps .Straighte.g. 1 Upper anterior .Curved e.g. 2 All lowers and upper posteriors
  • 43.
    Periosteal Elevators  Usedto separate and retract soft tissue from teeth and bone. Molt 9 Woodson 1 Freer elevator
  • 44.
    Rules of usingdental forceps  1-The patient is seated comfortably in the chair after adjusting the chair to the appropriate height , the apron fitted around the patient and aseptic technique should be followed , inspecting the tooth to be extracted and the instruments required for operation are selected
  • 45.
    Rules of usingdental forceps  2-The forceps are then picked up in the operator’ s right hand with the thumb finger supporting it at its joint and the forceps handles in the palm of the hand this position gives the operator firm grip and fine control over the instrument
  • 46.
    Rules of usingdental forceps  In the upper molar and premolar forceps the curved side of the handles should rest in the palm of the hand  3-In extraction of maxillary teeth , retract the lip and cheek and support the alveolar process using the thumb and index finger of the left hand  4-In extraction of the left mandibular teeth , the middle and the index fingers of the left hand grips and supports the alveolar process around the tooth being extracted, while the thumb is used to support the mandible
  • 47.
    Rules of usingdental forceps  In extraction of the right mandibular teeth the operator should stand at the right side and behind the chair and the left hand comes from the other side to support the alveolus with the thumb and index fingers while the other fingers support the mandible
  • 48.
    Rules of usingdental forceps  The displacement of the tooth from its socket : When the blades have been forced along the root with firm grip and the tooth movement buccal outward and lingual inward with pressure that should be firm smooth and controlled  Accordingly the outward movement is initiated in the extraction of all the maxillary and mandibular teeth with exception of mandibular third and relatively mandibular second molars .  Inward movement is initiated in the extraction of lower 2 nd and 3rd molars due to the fact that the lingual alveolar bone plate is thinner than in the buccal plate .As a general rule the movement is initiated towards the least resistance site.
  • 49.
    Rules of usingdental forceps  However there might be some deviation from the general rule , when the tooth is involved in very deep decay or abnormal configuration of root .  In deeply decayed teeth it is advisable to initiate the extraction movement towards the decayed side of the tooth and keeping the force of movement more stressed towards decayed side
  • 51.
    Rules of usingdental forceps  In extraction of teeth with conical roots which usually the upper central incisors and the lower second premolars and mesiodens, these teeth could be detached from their sockets by primary rotatory movement. If such a tooth felt to resist rotation it should be moved buccolingually.  Also rotatory secondary movement could be used after the tooth has been completely loosened.
  • 52.
    Rules of usingdental forceps  The final movement of the tooth: normally after few buccolingual movements, the tooth is felt to have been loosened and rising out of its socket , when this occurs the final movement should always be directed outward in order to avoid traumatizing the teeth of opposing jaw.  If gum is found to be attached to the tooth this adhesion should be carefully dissected and avoid pulling of the tooth by dental forceps to avoid soft tissue laceration and exposure of the alveolar bone
  • 53.
     Extraction ofmaxillary incisors  A-Apical grip  B-Labial movement  C-Palatal movement  D,E-Dilation of the socket and final delivery
  • 54.
     Extraction ofmaxillary  premolars:     A-Apical grip B-Labial movement C-Palatal movement D,E-Dilation of the socket and final delivery
  • 55.
     Extraction ofmaxillary molars:  A-Apical grip  B-Labial movement  C-Palatal movement  D,E-Dilation of the socket and final delivery
  • 56.
     Extraction ofmandibular Incisors :  A-Apical grip  B-Labial movement  C- Lingual movement  D,E-Dilation of the socket and final delivery
  • 57.
     Extraction ofmandibular  premolar :  A-Apical grip  B-Labial movement  C-Lingual movement  D-Primary rotatory movement in 2nd premolar only  E,F-Dilation of the socket and final delivery
  • 58.
         Extraction of mandibular molar: A-Apical grip B-Buccal movement C- Lingual movement D,E-Dilation of the socket and final delivery
  • 60.
    Rules of usingdental forceps • Catch the root not the crown • Parallel to the long axis of the tooth • Initial movement • Deep grip • Firm grip • Principal movement • Final movement
  • 61.
    Mechanical principles involvedin tooth extractions Applying displacing force to a tooth: Direct application of a forceps Indirect via a fulcrum (elevators) Expansion of the socket
  • 62.
  • 64.
    Grip of the-2 extraction forceps Wright Wrong Wright Wrong Wrong
  • 65.
    Application of theForceps - 3 ( (Grip of the tooth
  • 68.
    Proper function andPosition of Left Hand- 4
  • 69.
    Mechanical principles offorceps extraction Wedging Expansion of socket walls
  • 71.
  • 72.
    Anatomical Considerations The UpperAnteriors Central incisor Lateral incisor Canine
  • 73.
    The Upper Posteriors FirstPremolar First Molar Second Premolar Second Molar Third Molar
  • 74.
  • 75.
  • 76.
  • 77.
  • 78.
    • Post-extraction Procedures(Recommendations( • Order of Extraction • Extraction of deciduous teeth:
  • 79.
    … Take timeto laugh It is the music of the !heart
  • 80.
    Removal of FracturedRoot  Fractured root should be removed at the time of extraction because it may cause the following complication:  1-Large roots in the alveolus will be localized source of inflammation  2-It may cause residual infection  3-RR may act as a mechanical irritant and set up an inflammatory reaction which may give rise to neuralgic pain of obscure origin
  • 81.
    Reason of RootBreakage 1-Faulty application of instruments or extraction movements, wrong pattern forceps on a particular tooth may cause its breakage. Improper grip , inadequate extraction movements. Sudden or jerky extraction movement, gripping of the crown too superficially and not at CEJ
  • 82.
    Reason of RootBreakage 2-Pulpless teeth, badly decayed, teeth with abnormal root pattern or Hypercementosis 3-Excessive density of the surrounding bone due condensing osteitis , or isolated tooth and in old age patient 4-Lake of perfect control of instrument or interference from the patient
  • 83.
    Removal of brokensingle rooted teeth • This includes the maxillary incisors and canines and mandibular incisors, canines and premolars: • Removal of Roots Broken at the Gingival Margin: • A-These root may be extracted with forceps , with careful adaptation of the beaks under the gingival margin • B-Straight Apexo elevator or Coupland .The angulated Apexo elevator used to remove mandibular single rooted teeth apply moderate force distal as will as mesial of the root till complete delivery of the RR
  • 84.
    Removal of theroot broken halfway of the apex • Generally, these are the cases which require the reflection of mucoperiosteal flap and removal of buccal and lingual alveolar bone what we call it TRANS-ALVEOLAR SURGICAL EXTRACTION
  • 85.
    Take the timeto … !hear It is the power of Intelligence
  • 86.
    Removal of Rootsof Upper and Lower Molars • 1-Removal of Broken Root of Mandibular Molars : 1-When both roots are fractured at the gingival line , the root trunk is still present a lower premolar forceps can be used, its beaks should be inserted as far under the gingival margin
  • 87.
    Removal of Rootsof Upper and Lower Molars • 2-The other technique for removal of such roots is a drill used to separate the roots after this Apexo elevator may be used to loosen the mesial root by inserting it into a space between the lamia dura and the surface of the root from the mesial and distal surfaces until loosening of the root occur . The other root could extracted by using Winter or Cryer elevators
  • 88.
    Removal of BrokenRoots of Maxillary Molars • Maxillary molars roots may be removed by grasping the palatal and the distobuccal roots with the upper roots forceps or with Bayonet Forceps . • This procedure will either remove all three roots or cause breaking of mesiobuccal root which then can be removed by upper root forceps or with Warwick James curved elevator inserted into empty disto-buccal socket
  • 89.
    Removal of BrokenRoots of Maxillary Molars • Another technique is first to separate the fused roots with drill in the form of “ Y “ shape and then remove them individually by mean of forceps or by Warwick James curved elevator between the separated roots.
  • 90.
    … Take timeto Love It is the secret of !eternal youth
  • 91.
  • 92.
    Post-extraction care • Inspectionof the socket • Removal of debris and any tooth fragments • Squeezing the socket • Insuring haemostasis (Gauze pack) • Remove any septic granulation tissue or granuloma from the socket • Trim and smooth any sharp edges from the alveolar plate of bone • Clean the patient lips and face.
  • 93.
    Post-extraction Instructions 1-Keep bitingon gauze, sponges for about one hour after extraction, by the time if bleeding is controlled, discontinue pressure pack 2-No mouth wash for at least 24 hours after extraction 3-Avoid any hot food or drink for the rest of the day to prevent bleeding 4-The diet must be cold fluids or soft food to avoid irritation of the wound 5-Avoid any hard labour and have an adequate rest
  • 94.
  • 95.
    Use of Elevatorsin Extraction of Teeth .Parts of Elevator :Work Principles • Levering. • Wedging. • Wheel and Axle principle.
  • 96.
  • 97.
    Rules • Palm grip •Don’t use the neighbouring tooth as a fulcrum • Don’t use the buccal or lingual plate of bone as a fulcrum • Use the left hand for reflection, guard and support • Take care of the surrounding vital structures • Follow respectfully, root curvature
  • 98.
    Principles of Useof Elevator • Wedge principle: straight elevator • Lever principle: Copland elevator • Axel and Wheel principle: Cryer’s elevator
  • 99.
    Principles of Useof Elevator Wedge Principle Some elevators are designed primarily to be used as a wedge e.g. Apexo,and coupland. This elevators are forced between the root of the tooth and the investing bony tissue parallel to the long axis of the tooth
  • 100.
    Principles of Useof Elevator Lever Principle: On applying this principle the elevator is a lever of the first class the position of the fulcrum is between the effort and resistance in order to obtain a mechanical advantage in a lever of the first class the effort arm on one side of the fulcrum, must be longer than the resistance arm
  • 101.
    Principles of Useof Elevator Wheel and Axle Principle The wheel and axle is a simple machine the effort is applied to the circumference of a wheel which turn the axle so as to raise a weight. It could be used as a sole work principle in removing the teeth, it is also used in conjunction with a wedge or lever principles
  • 102.
    :Classification •According to Form. •Accordingto Use. Different Forms of Elevators
  • 104.
    Handling and Applicationof the Elevator
  • 105.
    Dental Elevators • Partsof Elevators: 1-Handle 2-Shank 3-Blade
  • 106.
    Dental Elevators Classification •I-According to use: 1-Elevators designed to remove the entire tooth, straight elevators, hospital pattern and winter elevator 2-Elevators designed to remove roots broken off at the gingival line e.g. Apexo elevator , Coupland and lido lavien elevators 3-Elevators designed to remove roots broken off half way to the apex e.g. curved elevator hospital pattern, winter elevator and Apexo elevator
  • 107.
    Dental Elevators Classification •II-According to Form: 1-Straight all types 2-Curved right and left 3-angulated right and left 4-Cross bar “ handle at right angle to the shank”
  • 108.
    Types of Dental :Elevators .Straighte.g. 1 Copland's .Curved e.g. 2 Cryer’s
  • 109.
    Root Elevators • Usedto loosen and frequently remove teeth and roots. – a small straight elevator – a large straight elevator –
  • 110.
    Dental Elevator ”Cross bar“winter Curved apexo
  • 111.
    Choice of elevators • • • • Remainingtooth structure Space available Availability and position of solid fulcrum Direction of the required movement
  • 112.
    Characteristics • Has nojoints • Needs a fulcrum to work • Has to be wedged between bone and tooth • Exerts less directional force on the tooth • Different sizes and shapes
  • 113.
    Indications of use Breaking down the periodontal attachment  Luxation or removal of full tooth  Luxation and removal of remaining roots  Bone removal  Mucoperiosteal elevation
  • 114.
    Danger in theUse of Elevators      1-Loosening or extracting the adjacent teeth 2-Fracture the alveolar process or fracturing the mandible 3-Penetrating the maxillary antrum or forcing the root into the antrum 4-Forcing a root a root of a mandibular molar through lingual plate of the mandible 5-Damage of soft tissues by slipping of the tip of the elevator
  • 115.
    Point to rememberin extraction of teeth  Never refer to the extraction of tooth as a “simple extraction”. You may find yourself in the embarrassing position of trying to explain to the patient why this simple extraction taking so much time and effort  Anticipate breakage by knowing all reason why root and crown break. Forewarn the patient of the possibility of breakage or fracture
  • 116.
    .Rules in theuse of Elevators .Dangers in the use of Elevators
  • 118.
    Removal of FracturedRoots .Reasons for Removal .Reasons of Root Breakage .Techniques of Root Removal