Principles of complete denture prosthodontics.
PRESENTED BY:
DR. TUSHAR BHAGAT, [email protected]
DS
P 3
31
Content
I. Introduction & Definition
II. Parts of the complete denture
III. Denture retention, and stability
a) What are the displacing forces?
b) What are the retaining forces available to counteract displacement?
Principles of complete denture prosthodontics.
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Introduction & definition
A removable dental prosthesis that replaces the entire
dentition and associated structures of the maxilla / or
mandible and that can be removed by patients own will is
termed as removable complete denture.
Principles of complete denture prosthodontics.
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Ref: Clinical Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.1
Objectives of complete denture
I. To provide adequate masticatory function
II. To restore natural appearance
III. To restore normal speech
IV. Comfort and preservation of supporting
structure
Principles of complete denture prosthodontics.
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Ref: Clinical Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.1
Parts of complete denture
Principles of complete denture prosthodontics.
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Factors affecting success of CD
Principles of complete denture prosthodontics.
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Retention of complete denture
Is the quality inherent in a denture that resists
the forces of gravity, the adhesiveness of foods,
and the forces associated with opening of the
mouth.
Principles of complete denture prosthodontics.
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Ref: Principles of Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.29
Factors affecting Retention of complete denture
1) Physical
2) Anatomical
3) Physiological
4) Mechanical
Principles of complete denture prosthodontics.
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Ref: Principles of Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.29
Factors affecting Retention of complete denture
1) Physical: these includes;
i. Adhesion
ii. Cohesion
iii. Atmospheric pressure
iv. Gravity
Principles of complete denture prosthodontics.
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Ref: Principles of Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.29
Factors affecting Retention of complete denture
1) Physical: these includes;
i. Adhesion: the forces of
attraction existing between
dissimilar bodies in close
contact. (attraction between
saliva and denture base)Principles of complete denture prosthodontics.
10
Ref: Principles of Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.29
Factors affecting Retention of complete denture
1) Physical: these includes;
ii. Cohesion : the forces of
attraction existing between
similar bodies in close contact.
(surface tension of saliva)
Principles of complete denture prosthodontics.
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Ref: Principles of Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.29
Factors affecting Retention of complete denture
1) Physical: these includes;
iii. Atmospheric pressure: It is the
physical factor of hydrostatic
pressure due to the weight of
the atmosphere on the earth’s
surface.Principles of complete denture prosthodontics.
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Ref: Principles of Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.29
Factors affecting Retention of complete denture
1) Physical: these includes;
iv. Gravity : working against upper denture and for
the lower denture.
Principles of complete denture prosthodontics.
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Ref: Principles of Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.29
Factors affecting Retention of complete denture
2) Anatomical factors: these includes;
i. Shape of edentulous area
ii. Undercuts
iii. Anatomy of border tissues.
Principles of complete denture prosthodontics.
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Ref: Principles of Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.29
Factors affecting Retention of complete denture
3) Physiological factors: these
includes;
i. Neuromuscular control.
ii. Viscosity and volume of
saliva.
Principles of complete denture prosthodontics.
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Ref: Principles of Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.29
Factors affecting Retention of complete denture
4) Mechanical factors: these includes;
i. Balanced occlusion.
ii. Contour of the polished surface.
iii. Position of the occlusal plane.
iv. Position of teeth in respect to ridge.
Principles of complete denture prosthodontics.
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Ref: Principles of Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.29
Factors affecting Retention of complete denture
4) Mechanical factors: these includes;
i. Balanced occlusion : the bilateral simultaneous,
anterior and posterior occlusal contact in centric
and eccentric position.
Principles of complete denture prosthodontics.
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Ref: Principles of Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.30
Factors affecting Retention of complete denture
4) Mechanical factors: these includes;
ii. Contour of polished surface: teeth and the
polished surface should be contoured and
harmonious with oral structure.
Principles of complete denture prosthodontics.
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Ref: Principles of Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.30
Factors affecting Retention of complete denture
4) Mechanical factors: these includes;
iii. Position of occlusal plane: occlusal plane of lower
denture must be in correct level i.e corner of
mouth provide the anterior landmark.
Principles of complete denture prosthodontics.
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Ref: Principles of Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.30
Denture stability
4) Denture stability : is the quality of denture to be
firm, steady and constant in position when
forces are applied to it. (especially to resistance
against horizontal or rotatory movements)
Principles of complete denture prosthodontics.
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Ref: Principles of Complete denture prosthodontics by Dr.Moustafa A Hassaballa. P.no.32
References
1) Principles of Complete denture prosthodontics by
Dr.Moustafa A Hassaballa. P.no.29-32.
2) Clinical Complete denture prosthodontics by
Dr.Moustafa A Hassaballa. P.no.1
Principles of complete denture prosthodontics.
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Thank you
Principles of complete denture prosthodontics.
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