all the techniques used in completedenture fabrication in condition like flabby tissue and resorbed rigdes plus patients having problem of gag. it includes various pictures and procedure of impression techniques.
all the techniques used in completedenture fabrication in condition like flabby tissue and resorbed rigdes plus patients having problem of gag. it includes various pictures and procedure of impression techniques.
The biological fixation determines the longevity of dental implant treatment. It ensures the long term survival of dental implant. Better the osseointegration,higher will be the survival rate
The human mandible can be related to the maxilla in several positions in the horizontal plane. Among these centric relation is a significant position, because of its usefulness in relating the dentulous and edentulous mandible to maxilla, where the teeth , muscles and temporomandibular joint function in harmony. It is a position of occluso-articular harmony.
When treating a patient with a removable partial denture, the natural and artificial teeth, both functionally and esthetically, must co-exist in a harmonious relationship.
Occlusal harmony between a removable partial denture and the remaining natural teeth is a major factor in preservation of the surrounding structures.
In removable partial dentures, because of the attachment of the denture to abutment teeth, occlusal stresses can be transmitted directly to the abutment teeth and other supporting structures, which results in sustained stresses that may be more damaging than those transient stresses found in complete dentures.
The biological fixation determines the longevity of dental implant treatment. It ensures the long term survival of dental implant. Better the osseointegration,higher will be the survival rate
The human mandible can be related to the maxilla in several positions in the horizontal plane. Among these centric relation is a significant position, because of its usefulness in relating the dentulous and edentulous mandible to maxilla, where the teeth , muscles and temporomandibular joint function in harmony. It is a position of occluso-articular harmony.
When treating a patient with a removable partial denture, the natural and artificial teeth, both functionally and esthetically, must co-exist in a harmonious relationship.
Occlusal harmony between a removable partial denture and the remaining natural teeth is a major factor in preservation of the surrounding structures.
In removable partial dentures, because of the attachment of the denture to abutment teeth, occlusal stresses can be transmitted directly to the abutment teeth and other supporting structures, which results in sustained stresses that may be more damaging than those transient stresses found in complete dentures.
Revision of Complete Denture Occlusion 5th yearAmalKaddah1
Revisions of
Definitions
Differences between natural and artificial dentition
Types of artificial tooth forms
Types of balance
Factors affecting balanced occlusion
Concepts of occlusion
00- Revision of occlusion 5th year.pptxAmalKaddah1
The Stomatognathic system
Definitions.
Difference between natural and artificial Occ.
Balanced Occlusion and Factors affecting Balanced O.
Concepts of occlusion (Balanced and Non-balanced Occlusion).
why occlusion is important in dental practice?,
TMJ, Neuromusculature, dynamics of occlusion, ideal occlusion, determining,verification, and recording centric relation, vertical dimension.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Physiology of the stomatognathic system /certified fixed orthodontic courses ...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
Occlusion /certified fixed orthodontic courses by Indian dental academy Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
COMPLETE DENTURE CONSTRUCTION
1- Diagnosis and Treatment Planning for Removable Prosthodontics
2- Preliminary Maxillary and mandibular impression procedures
3- Final Maxillary and mandibular impression procedures
4- Jaw Relation Registration
a. Introduction and the stomatognathic system
What 'occlusion' is and why it is important
b. Definitions.
c. Check denture foundation and Establishment of facial contour.
d. Establishment of the occlusal plane.
e. Importance of mounting the maxillary cast using Maxillary face-bow record and transfer.
f. Determination of vertical dimension of centric occluding relation.
g. Determination of centric and eccentric relations at the accepted vertical dimension.
5- Selection of Artificial Teeth
6- Prosthetic Problems and possible solutions in Setting –up of teeth for skeletal Class I, II and Class III arch relationship of completely edentulous patients.
7- Try-in of the wax trial complete denture.
8- Complete denture insertion (Delivery)
9- Occlusal corrections.
10- Managements of Post Insertion Problems and Complaints.
11- Single denture and Kelly's Syndrome
12- Denture Processing and Laboratory Errors.
13- Relining, rebasing and repair of removable dentures
14- Denture Processing and Laboratory Errors.pptxAmalKaddah1
COMPLETE DENTURE CONSTRUCTION
1- Diagnosis and Treatment Planning for Removable Prosthodontics
2- Preliminary Maxillary and mandibular impression procedures
3- Final Maxillary and mandibular impression procedures
4- Jaw Relation Registration
a. Introduction and the stomatognathic system
What 'occlusion' is and why it is important
b. Definitions.
c. Check denture foundation and Establishment of facial contour.
d. Establishment of the occlusal plane.
e. Importance of mounting the maxillary cast using Maxillary face-bow record and transfer.
f. Determination of vertical dimension of centric occluding relation.
g. Determination of centric and eccentric relations at the accepted vertical dimension.
5- Selection of Artificial Teeth
6- Prosthetic Problems and possible solutions in Setting –up of teeth for skeletal Class I, II and Class III arch relationship of completely edentulous patients.
7- Try-in of the wax trial complete denture.
8- Complete denture insertion (Delivery)
9- Occlusal corrections.
10- Managements of Post Insertion Problems and Complaints.
11- Single denture and Kelly's Syndrome
12- Denture Processing and Laboratory Errors.
13- Relining, rebasing and repair of removable dentures
14- Denture Processing and Laboratory Errors
13- Relining, rebasing and repair of removable dentures.pptxAmalKaddah1
COMPLETE DENTURE CONSTRUCTION
1- Diagnosis and Treatment Planning for Removable Prosthodontics
2- Preliminary Maxillary and mandibular impression procedures
3- Final Maxillary and mandibular impression procedures
4- Jaw Relation Registration
a. Introduction and the stomatognathic system
What 'occlusion' is and why it is important
b. Definitions.
c. Check denture foundation and Establishment of facial contour.
d. Establishment of the occlusal plane.
e. Importance of mounting the maxillary cast using Maxillary face-bow record and transfer.
f. Determination of vertical dimension of centric occluding relation.
g. Determination of centric and eccentric relations at the accepted vertical dimension.
5- Selection of Artificial Teeth
6- Prosthetic Problems and possible solutions in Setting –up of teeth for skeletal Class I, II and Class III arch relationship of completely edentulous patients.
7- Try-in of the wax trial complete denture.
8- Complete denture insertion (Delivery)
9- Occlusal corrections.
10- Managements of Post Insertion Problems and Complaints.
11- Single denture and Kelly's Syndrome
12- Denture Processing and Laboratory Errors.
13- Relining, rebasing and repair of removable dentures
9- Denture Placement and occlusion correction.pptxAmalKaddah1
COMPLETE DENTURE CONSTRUCTION
1- Diagnosis and Treatment Planning for Removable Prosthodontics
2- Preliminary Maxillary and mandibular impression procedures
3- Final Maxillary and mandibular impression procedures
4- Jaw Relation Registration
a. Introduction and the stomatognathic system
What 'occlusion' is and why it is important
b. Definitions.
c. Check denture foundation and Establishment of facial contour.
d. Establishment of the occlusal plane.
e. Importance of mounting the maxillary cast using Maxillary face-bow record and transfer.
f. Determination of vertical dimension of centric occluding relation.
g. Determination of centric and eccentric relations at the accepted vertical dimension.
5- Selection of Artificial Teeth
6- Prosthetic Problems and possible solutions in Setting –up of teeth for skeletal Class II and Class III arch relationship of completely edentulous patients.
7- Try-in of the wax trial complete denture.
8- Complete denture insertion (Delivery)
9- Occlusal corrections.
10- Managements of Post Insertion Problems and Complaints.
11- Single denture and Kelly's Syndrome
12- Denture Processing and Laboratory Errors.
6- Prosthetic problems and possible solutions in setting –up of teeth for ske...AmalKaddah1
Edited
Prosthetic Problems and possible solutions in Setting–up
of teeth for skeletal Class I, II and Class III arch relationship
For completely edentulous patients
I-Introduction
II-Factors affecting teeth arrangement
1. Pattern of bone resorption
2. Esthetics and phonetics requirements.
3. Stability
4. Occlusal plane
5. Arch form ( Arrangement of teeth in harmony with ridge contour)
6. Interdigitation of the teeth
7. The inclination for proper occlusion
8. Arch relationship
III- Guidelines governing the position of artificial teeth
IV- Arrangement of teeth in normal cases.
V - Atypical arrangement of teeth (Class II, Class II)
VI- Common errors in teeth setting.
VII- Occlusal Schemes- Attempts to Stabilize Dentures (Lingualized and Monoplane occlusion).
4- Revision >> Concepts of occlusion for 4th year Students.AmalKaddah1
Occlusion for Removable Prosthodontics.
Revision:
What 'occlusion' is and why it is important
Definitions.
Difference between natural and artificial Occlusion.
Types of artificial posterior teeth
Problems with anatomic and non-anatomic teeth
Factors affecting selection of tooth forms.
Rational for Arranging Posterior Teeth in Balanced Occlusion
Contraindications of balanced occlusion.
Types of Balance as Related to Complete Denture
- Lever balance
-Occlusal Balance.
Balanced Occlusion and Factors affecting Balanced Occ. (Third year)
Concepts of occlusion (Balanced and Non balanced Occlusion).
9- Denture placement and occlusion correction.AmalKaddah1
COMPLETE DENTURE CONSTRUCTION
1- Diagnosis and Treatment Planning for Removable Prosthodontics.
2- Preliminary Maxillary and mandibular impression procedures.
3- Final Maxillary and mandibular impression procedures.
4- Jaw Relation Registration.
a. Introduction and the stomatognathic system
What 'occlusion' is and why it is important.
b. Definitions.
c. Check denture foundation and Establishment of facial contour.
d. Establishment of the occlusal plane.
e. Importance of mounting the maxillary cast using Maxillary face-bow record and transfer.
f. Determination of vertical dimension of centric occluding relation.
g. Determination of centric and eccentric relations at the accepted vertical dimension.
5- Selection of Artificial Teeth
6- Prosthetic Problems and possible solutions in Setting –up of teeth for skeletal Class II and Class III arch relationship of completely edentulous patients.
7- Try-in of the wax trial complete denture.
8- Complete denture insertion (Delivery).
9- Occlusal corrections.
10- Managements of Post Insertion Problems and Complaints.
11- Single denture and Kelly's Syndrome.
12- Denture Processing and Laboratory Errors.
12- Denture Processing and Laboratory Errors.AmalKaddah1
CLINICAL STEPS FOR COMPLETE DENTURE CONSTRUCTION
1- Diagnosis and Treatment Planning for Removable Prosthodontics
2- Preliminary Maxillary and mandibular impression procedures
3- Final Maxillary and mandibular impression procedures
4- Jaw Relation Registration
a. Introduction and the stomatognathic system
What 'occlusion' is and why it is important
b. Definitions.
c. Check denture foundation and Establishment of facial contour.
d. Establishment of the occlusal plane.
e. Importance of mounting the maxillary cast using Maxillary face-bow record and transfer.
f. Determination of vertical dimension of centric occluding relation.
g. Determination of centric and eccentric relations at the accepted vertical dimension.
5- Selection of Artificial Teeth
6- Prosthetic Problems and possible solutions in Setting –up of teeth for skeletal Class II and Class III arch relationship of completely edentulous patients.
7- Try-in of the wax trial complete denture.
8- Complete denture insertion (Delivery)
9- Occlusal corrections.
10- Managements of Post Insertion Problems and Complaints.
11- Single denture and Kelly's Syndrome.
12- Denture Processing and Laboratory Errors.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
5. • The stomatognathic system
• What 'occlusion' is and why it is important
• Definitions.
• The significance of 'ideal occlusion‘
• Difference between natural and artificial Occlusion.
• Mandibular Movements.
• Articulators and Facebows.
• Balanced Occlusion and Factors affecting Balanced Occlusion.
• Concepts of occlusion (Balanced and Non balanced Occlusion).
• Recording of Occlusion for removable prosthodontics.
• Occlusal correction for Removable Prosthesis.
• Occlusion and implant restorations (Loading protocols)
Occlusion Outline
8. • Re-establish the functional position of the
mandible
• Maintaining the stability of complete
dentures, with the least amount of trauma to
the supporting tissues.
• Esthetic and functional efficiency.
• Preservation of the remaining structure.
• Comfort
10. Stomatognathic System
• The movement of the jaw is
orchestrated OR organized by a very
complex set of muscles, which are in
turn controlled by the body's local
and central nervous system
Stoma = Mouth
Gnathion = jaws
11. The stomatognathic system
= the masticatory
system =
• Teeth
• Periodontium
• Jaws
• TMJ
• Associated muscles of
tongue & muscles of
the soft palate
• Investing tissues
• Neural control
12. Muscles of Mastication:
Neuro Muscular System
Masseter
Temporalis
Lateral Pterygoid
Medial Pterygoid
Tempromandibular
Sphenomandibular
Stylomandibular
TMJ and T M Capsule
Associated Ligaments
13.
14. Bilateral joints permit the mandible to
move as one unit with two
functional patterns:
- Hinge (inferior
portion)
- Translation (superior
portion)
16. 1- The Condyles
2- Articular disc
3- The joint capsule
4- Articular Fossa
(surface of the temporal bone)
5- Temporomandibular ligament
6- Masticatory Muscles
The main components are
17. Condyle: The rounded
articular surface at the
end of the mandible
(lower jaw).
Glenoid fossa: A deep concavity in the
temporal bone at the root of the zygomatic arch
that receives the condyle of the mandible
Tubercle: A slight elevation from the
surface of the bone giving attachment
to a muscle or ligament.
18. Articular disk is a thin, oval fibrous
connective tissue plate, non-vascular,
placed between the condyle of the
mandible and the mandibular fossa.
Its upper surface is concavo-convex
and Its under surface, is concave, to accommodate and
adapt itself to the form of the mandibular fossa and the
articular tubercle. Able to tolerate forces,
It divides the joint into two cavities, each is provided
with a synovial membrane.
19. Biconcave
articular disc
C.T. capsule
• Capsule: Dense fibrous connective tissue,
Provides protection to condyle and fossa during
movements
• Lacks blood vessels and nerves
• Able to tolerate forces without damage or pain
being produced
20. The Synovial fluid:
Consist of small amounts of a clear, straw-colored
viscous fluid. It is an infiltrate of the blood
diffused out from the rich capillary network of
the Synovial membrane.
Function:
1- Lubrication
2- Nutrition.
3- Clear the tissue debris.
21. TMJ LIGAMENTS AND CAPSULE
Yellow Stylomandibular Ligament
Red Pterygomandibular raphe
Green Sphenomanibular ligament
23. The mandible opens,
and while initiating
closing, there is a shift
slightly to the side of
the bolus, due to
the oblique orientation
In normal chewing
function
of the masseter and medial pterygoid.
24. The closure of the mandible does
not occur in a straight upward
movement but rather in a curve
25. Elevation of mandible (closes the jaw)
Masseter
Temporalis
Elevation of the mandible (closes the jaw)
Assist in Retrusion of mandible
Assist in protrusion of mandible
• Elevation of the mandible (closes the jaw)
• Minor contribution to protrusion of the mandible
• Right medial pterygoid with left lateral pterygoid
turn the chin to left side
Medial Pterygoid
Wikipedia
26. • Protrusion of the mandible: The primary function
of the lateral pterygoid muscle is to pull the head of the
condyle out of the mandibular fossa along the articular
eminence to protrude the mandible.
• Jaw opening (Depresses the mandible) it is
assisted by the digastric, mylohyoid and geniohyoid
muscles.
• SIDE TO SIDE movements GRINDING MOVEMENT
• Unilateral action of a lateral pterygoid produces contralateral
excursion (a form of mastication), usually performed in
concert with the medial pterygoids.
Lateral Pterygoid
Wikipedia
27. The primary function of the lateral pterygoid
muscle is to pull the head of the condyle out of
the mandibular fossa along the articular
eminence to protrude the mandible.
Protrusion of the mandible
28. the Digastric muscles is not a muscle of mastication
but it play an important role in mandibular function
The Lateral Pterygoid muscles open the mouth
(depressing the mandible), with the assistance
of the Digastric muscles
30. IF YOU CAN’T FEED
A HUNDRED PEOPLE
THEN JUST FEED ONE
31.
32. 1. Orientation relations (Occlusal plane orientation)
2. Vertical relation, and
3. Antero - posterior relation
Three - dimensional record
Boucher classified jaw relations into three groups
33. 1- ORIENTATION RELATION
Orient the mandible to the cranium in
such a way that when the mandible is
kept in its most posterior position, the
mandible can rotate in a sagittal plane
around an imaginary transverse axis
passing through or near the condyles.
THE AXIS CAN BE LOCATED BY THE
FACEBOW.
34. • ORIENTATION OF MAXILLA IN RELATION
TO BASE OF SKULL
Plane of maxilla may be tilted in some
patients, in such cases plane of mandible
will not be altered since it articulates with
base of the skull. Hence, a maxillary tilt will
alter the relationship of maxilla to mandible
during different movements, also affect the
level of occlusal plane.
35. • Orientation of occlusal plane
• The occlusal plane is defined as “the
average plane established by the
incisal and occlusal surfaces of the
teeth".
36. • Importance of orientation of
occlusal plane
Anteriorly, occlusal plane mainly helps in
achieving esthetic & phonetic. posteriorly, it
forms a milling surface, where tongue &
buccinator muscle are able to position the
food bolus onto it , and hold it there during
mastication. Incorrect of occlusal plane would
hamper esthetics, phonetics, & mastication. It
may affect stability of complete denture &
ultimately result in alveolar bone resorption.
40. When you realize you've made a mistake,
take immediate steps to correct it.
41.
42. The STATIC relationship between the
incising or masticating surfaces of the
maxillary and mandibular teeth, or tooth
analogues.
43. The contact relationship
between the occlusal
surfaces of teeth during
function.
It is the DYNAMIC contacts relationship of
the teeth as the mandible moved to and from
eccentric relation.
44. Movement occurring when mandible
moves away from maximum
intercuspation
Undesirable contacts
occurring during
lateral movements
45. The side toward which the
mandible moves in a lateral
excursion
Working side
46. Non working (balancing) side
The side which the mandible moves
toward the median line in a lateral
excursion
47. The most retruded relation of the
mandible to the maxillae when the
condyles are in the most posterior
unstrained position in the glenoid fossae
48. The relation of the
mandible to the maxilla
with the mandible in its
most retruded position.
(GPT) 2005
49. Dawson has defined this position
as the rearmost, uppermost,
midmost (RUM) position of the
condyle in the fossa at which the
medial pole of the condyle disc
assembly is braced against the
bony wall of the eminentia.
50. Whatever is the definition of centric relation it is
reproducible, stable and functional position.
The rearmost, uppermost, midmost (RUM)
position of the condyle in the fossa
The most posterior unstrained position in
the glenoid fossae
The uppermost and rearmost
position in the glenoid fossae
The anterior-superior position
against the articular eminences
51. The mandible is in centric relation if four
criteria are fulfilled:
1.The disk is properly aligned on both condyles.
2.The condyle-disk assemblies are at the highest point possible
against the anterior slopes of' the eminentiae. (Uppermost)
3. The medial pole of each condyle-disk assembly is braced by
bone. (midmost)
4.The inferior lateral pterygoid muscles have released their
contraction and are passive (most posterior unstrained
position)
52. Is the only constant repeatable
position within the functional
limit to start constructing a
stable occlusion
54. CENTRIC
OCCLUSION
The occlusion of opposing teeth when the
mandible is in centric relation, This may or
may not coincide with the centric relation in
natural dentition GPT 9
56. • In 90% of individuals with full
complement of natural teeth,
maximum intercuspation, does not
coincide with centric relation of the
jaws.
• In most patients centric occlusion is
located anterior to the centric
relation by 0.5-1.5 mm measured in
the horizontal plane.
57. In the edentulous patients, use the
posterior border position (CR)
Centric Occlusion made to coincide
with CR
58. Long centric or Freedom in centric
The occlusal surface of the teeth could be
altered to allow freedom of tooth movement in
harmony with the rotation of condyle. (from
hinge position to habitual intercuspal position).
59. Anterior Contacts in MI and posterior point
is the COR
Long centric or Freedom in centric
60. Centric occlusion with
teeth present is a tooth to
tooth relation whereas
centric relation, is a bone
to bone relation
(Static positions)
63. • The distance measured between two selected
anatomic or marked points (usually one on the tip of
the nose and the other one on the chin) when
occluding members are in maximal intercuspation.
GPT 9
64. Occlusal vertical dimension
The distance measured between two points
when occluding members are in contact and
condyles are in centric relation.
67. • The space between the
maxillary and mandibular
occlusal surfaces when the
mandible is in the rest
position.
when the mandible is in a specified balanced
position, it ranges from 2-4 mm.
68. • Isometric contraction
It is contraction of muscle without shortening
Elevator muscles.
Contract
isometrically to keep
the mandible at rest
(tension without
shortening)
Ring of closing, opening and post
vertebral muscles.
70. Hinge Axis
• A transverse axis about which the
mandible can rotate without
translatory movement of the condyles.
Hinge Movement
• An opening or closing movement of
the mandible about the hinge axis.
71. This relation exists when the
jaws are in centric relation and
the teeth are in centric occlusion
To obtain a centric relation record it is
necessary to determine the vertical
dimension of occlusion.
72. State of equilibrium of the denture bases
in relation to their supporting structure.
when the opposing teeth contact.
73. Balanced Occlusion
• Simultaneous contacts of the occluding surfaces
of the teeth in various jaw positions.
Free Articulation = Balanced Articulation
= Unobstructed Articulation
• Articulation that is unobstructed by cuspal
interference.
• Simultaneous contacts of the occluding surfaces
of the teeth during function
The Glossary of Prosthodontic 2005
75. Christensen’s phenomenon
• A gap occurring in the
natural dentition when
the mandible is
protruded. It can lead to
instability in full dentures
unless compensating
curves are incorporated
into the dentures.
76. Bonwill’s Triangle
The distance between the center of each
condyle and the contact point of the two lower
central incisors form an equilateral triangle
(4 inches=10 cm length)
which does not change
throughout life. This
triangle is established
as the Bonwill triangle.
77. • V ARIATIONS IN THE
SIZE of Bonwill’s
triangle influence the
cusp angulation for
complete dentures.
Bonwill’s Triangle
• He found that the dimensions of the teeth and other
cranial bones and even the whole body are in constant
relation to the length of the sides of this triangle.
• Construction of average articulators is generally in
accordance with Bonwill’s theory,
78. • As a result of his jaw measurements
Bonwill developed in 1864 the first
Bonwill articulator, a device for
simulating the temporomandibular
joint movements for
manufacturing dentures.
Bonwill’s Articulator
79. In Summary
1. What 'occlusion' is and why it is important
2. The stomatognathic system
3. Clinical significance of jaw relation
4. Retruded Jaw Relation, Centric Jaw Relation, Centric Relation
5. why occlusion is important
6. Denture Stability
7. The stomatognathic system
8. Centric and Eccentric occluding relation
9. Vertical dimension of occlusion
10.Vertical dimension of rest
11.Interridge distance
12.Free way space, inter occlusal distance
13.Balanced Occlusion and Free Articulation
14.Hinge Axis and Hinge Movement
15.Christensen’s phenomenon
16.Bonwill’s Triangle