81 Questions
What is the ideal ridge contour according to the text?
Smooth and regular surface of attached gingiva
What are the consequences of loss of residual ridge contour according to the text?
Unesthetic open gingival embrasures ('Black Triangle')
According to Tylmann's classification, what are the shape options for contacting the alveolar ridge?
Sanitary/Hygienic, Modified ridge-lap, Conical/Spheroidal
What is the primary factor for pontic selection based on the text?
Esthetics and oral hygiene
In which pontic type does the concave gingival surface make it difficult for the patient to clean and maintain?
Saddle pontic/Ridge lap
What are the advantages of the ovate pontic design according to the text?
Pleasing appearance and strength
What should the contact between residual ridge and pontic allow, according to oral hygiene recommendations in the text?
Superfloss passage through the space between them
What is the primary material used in a metal-resin pontic according to the text?
Resin composite
What is the primary factor for pontic selection based on the text?
Esthetics and oral hygiene
What is the primary function of a pontic in a fixed partial denture?
To replace the missing natural tooth and restore its function
What is the purpose of the metal-ceramic framework in pontic design?
To resist porcelain fracture
Why is it important for a pontic to have a cleansable tissue surface?
To prevent plaque accumulation and gum disease
What does the term 'rigidity' refer to in pontic design?
The ability to resist deformation
How does a pontic prevent tilting or drifting of adjacent teeth into the edentulous space?
By occupying the space previously filled by the natural crown
Why is it important for a pontic to have access to abutment teeth?
To ensure proper distribution of masticatory forces
What role does the edentulous ridge play in pontic design?
The pontic should appear to grow out of it
Why should a pontic exert no pressure on the ridge?
To prevent tissue damage and discomfort for the patient
Young's modulus should be considered in which aspect of pontic design?
The ability to resist deformation
Why is it important for a pontic to have enough space for porcelain?
To resist porcelain fracture
What is an essential aspect of pontic design to maintain access to abutment teeth?
The ability to resist deformation
What should be considered with regards to preventing tilting or drifting of adjacent teeth into the edentulous space?
Occupying the space previously filled by natural crown
What is the primary factor for pontic selection based on the text?
Biologic
What does the term 'rigidity' refer to in pontic design?
Resistance to fracture
Why is it important for a pontic to have access to abutment teeth?
Biologic Mechanic
What should be considered with regards to preventing tilting or drifting of adjacent teeth into the edentulous space?
Strong connectors
According to Tylmann's classification, what are the shape options for contacting the alveolar ridge?
Ovate and Modified ridge lap design
What is an essential aspect of pontic design to maintain access to abutment teeth?
Biologic Mechanic Esthetic
What is the primary function of a pontic in a fixed partial denture?
Replace the missing natural tooth and restore its function
What is the optimal pontic design referred as in the text?
Biologic Mechanic Esthetic Cleansable tissue surface Metal-ceramic framework to resist porcelain fracture Shape to look like tooth it replaces Access to abutment teeth Strong connectors (to prevent fractue) Appears to grow out of edentulous ridge No pressure on ridge Rigidity (to resist deformation) Enough space for porceain
What should be considered with regards to preventing tilting or drifting of adjacent teeth into the edentulous space?
Strong connectors (to prevent fractue)
What role does the edentulous ridge play in pontic design?
Appearance of growing out of edentulous ridge
What is the primary disadvantage of the sanitary-hygienic pontic design?
Poor esthetics
In which type of pontic does the concave gingival surface overlap the residual ridge buccolingually, making it difficult for the patient to clean and maintain?
Modified Saddle pontic/Ridge lap
Why is the Modified ridge lap pontic design considered to be the most common pontic form used in visible areas during function?
Esthetic appeal
What is the primary advantage of the Conical Pontic design?
Easy cleaning
What aspect of the Ovate Pontic design necessitates meticulous oral hygiene to prevent tissue inflammation?
Large area of tissue contact
What should contact between residual ridge and pontic allow, according to oral hygiene recommendations?
Passive passage for flossing
What is the primary consideration for pontic selection based on the text?
Esthetic appeal
According to Rosenstiel's classification, which type has minimal tissue inflammation as it remains clear of the residual ridge?
Sanitary/Hygienic
What is the primary disadvantage of the Modified Saddle pontic/Ridge lap design?
Entrapment of food particles
Why does the Ovate Pontic design require meticulous oral hygiene?
Minimal tissue inflammation
What is the primary disadvantage of the Ovate Pontic design?
Plaque accumulation and tissue inflammation.
What should be noted about Modified ridge-lap pontics with regards to esthetics and oral hygiene?
They have poor esthetics.
What is the primary function of a pontic in a fixed partial denture?
To replace the missing natural tooth, restore its function, and fill the space previously occupied by the natural crown.
What role does the edentulous ridge play in pontic design?
The edentulous ridge should not bear any pressure from the pontic and should have enough space for porcelain.
What is the primary disadvantage of the Modified Saddle pontic/Ridge lap design?
It makes it difficult for the patient to clean and maintain due to the concave gingival surface.
What is the primary consideration for pontic selection based on the text?
Maintaining access to abutment teeth.
What should contact between residual ridge and pontic allow, according to oral hygiene recommendations?
It should allow for meticulous cleaning and maintenance by the patient.
What is the purpose of the metal-ceramic framework in pontic design?
To resist porcelain fracture and provide rigidity.
What is the primary disadvantage of the Ovate Pontic design?
It requires meticulous oral hygiene to prevent tissue inflammation.
What is the primary advantage of the Conical Pontic design?
It exerts no pressure on the ridge.
What is the primary material used in a metal-resin pontic according to the text?
Metal and resin.
How does a pontic prevent tilting or drifting of adjacent teeth into the edentulous space?
One function of fixed prosthodontic treatment is to prevent tilting or drifting of the adjacent teeth into the edentulous space.
What are the shape options for contacting the alveolar ridge according to Tylmann's classification?
Concave, convex, and ovate shapes.
What is the optimal pontic design referred to as in the text?
Biologic, mechanic, esthetic, and cleansable tissue surface.
What are the consequences of loss of residual ridge contour according to the text?
Unesthetic open gingival embrasures, food impaction, percolation of saliva during speech
What is the primary disadvantage of the Ovate Pontic design?
Meticulous oral hygiene is necessary to prevent tissue inflammation resulting from the large area of tissue contact
Why is the Modified ridge lap pontic design considered to be the most common pontic form used in visible areas during function?
Combines esthetics with easy cleaning
What should contact between residual ridge and pontic allow, according to oral hygiene recommendations?
Passage of superfloss through the space between them
What is the optimal pontic design referred to as in the text?
Sanitary-hygienic
What role does the edentulous ridge play in pontic design?
It influences the choice of pontic type and design
Why is the Modified ridge lap pontic design considered to be the most common pontic form used in visible areas during function?
Combines esthetics with easy cleaning
According to Tylmann's classification, what are the shape options for contacting the alveolar ridge?
Sanitary/hygienic, modified sanitary, conical/spheroidal, saddle, ridge lap, modified ridge-lap, ovate
In which type of pontic does the concave gingival surface overlap the residual ridge buccolingually, making it difficult for the patient to clean and maintain?
Saddle pontic/ Ridge lap
Why is it important for a pontic to have access to abutment teeth?
To maintain oral hygiene and facilitate cleaning
What should be considered with regards to preventing tilting or drifting of adjacent teeth into the edentulous space?
Maintaining functional harmony and providing proper support
According to Rosenstiel's classification, which type has minimal tissue inflammation as it remains clear of the residual ridge?
Mucosal contact
According to the Glossary of Prosthodontic Terms, a pontic is an artificial tooth on a fixed partial denture that replaces the missing natural tooth, restores its function and usually fills the space previously occupied by the natural ______.
crown
One function of fixed prosthodontic treatment is to prevent tilting or drifting of the adjacent teeth into the ______ space.
edentulous
The optimal pontic design should have a cleansable tissue ______.
surface
The metal-ceramic framework in pontic design is to resist ______ fracture.
porcelain
The pontic design should appear to grow out of the ______ ridge.
edentulous
The primary factor for pontic selection is based on the ______.
treatment
According to Tylmann's classification, the shape options for contacting the alveolar ridge are ______.
concave and convex
The primary function of a pontic in a fixed partial denture is to prevent tilting or drifting of adjacent teeth into the ______ space.
edentulous
The ovate pontic design requires meticulous oral ______.
hygiene
The edentulous ridge plays a role in pontic design by providing ______.
rigidity
Young's modulus should be considered in the aspect of pontic design related to ______.
rigidity
The consequences of loss of residual ridge contour according to the text are related to ______.
rigidity
Tilting Reduced ______ space Difficulty in fabricating ______ ASSESSMENTS FOR PONTIC DESIGN 2) RESIDUAL RIDGE CONTOUR Ideal Ridge Contour should be: Smooth and regular surface of attached gingiva Sufficient height and wide Facially, free of frenal attachment ASSESSMENTS FOR PONTIC DESIGN 2) RESIDUAL RIDGE CONTOUR
pontic
Loss of Residual Ridge Contour: Unesthetic open gingival embrasures «Black Triangle» Food impaction Percolation of salivia during speech ASSESSMENTS FOR PONTIC DESIGN 2) RESIDUAL RIDGE CONTOUR
pontic
Study Notes
Pontic Design and Residual Ridge Contour
- The ideal residual ridge contour is a smooth and regular surface of attached gingiva, with sufficient height and width, and facially free of frenal attachment.
- Loss of residual ridge contour leads to unesthetic open gingival embrasures («Black Triangle»), food impaction, and percolation of saliva during speech.
Pontic Selection and Design
- The primary factor for pontic selection is based on the edentulous ridge.
- The optimal pontic design is referred to as the ovate pontic design.
- The pontic design should appear to grow out of the residual ridge.
- The primary function of a pontic in a fixed partial denture is to prevent tilting or drifting of adjacent teeth into the edentulous space.
- The pontic design should have a cleansable tissue surface.
Tylmann's Classification and Pontic Shapes
- According to Tylmann's classification, the shape options for contacting the alveolar ridge are sanitary-hygienic, modified ridge lap, and ovate pontic designs.
- The sanitary-hygienic pontic design has a concave gingival surface, making it difficult for the patient to clean and maintain.
- The modified ridge lap pontic design is considered the most common pontic form used in visible areas during function.
Materials and Framework
- The primary material used in a metal-resin pontic is metal.
- The metal-ceramic framework in pontic design is to resist fracture.
Oral Hygiene and Maintenance
- The ovate pontic design requires meticulous oral hygiene to prevent tissue inflammation.
- The contact between residual ridge and pontic should allow for easy cleaning and maintenance.
- The primary advantage of the conical pontic design is that it is easy to clean and maintain.
Young's Modulus and Rigidity
- Young's modulus should be considered in the aspect of pontic design related to rigidity.
- The term 'rigidity' in pontic design refers to the ability of the pontic to resist deformation.
Edentulous Ridge and Pontic Function
- The edentulous ridge plays a role in pontic design by providing support and stability.
- The pontic prevents tilting or drifting of adjacent teeth into the edentulous space by filling the gap and providing support.
- The primary function of a pontic in a fixed partial denture is to prevent tilting or drifting of adjacent teeth into the edentulous space.
Glossary of Prosthodontic Terms
- According to the Glossary of Prosthodontic Terms, a pontic is an artificial tooth on a fixed partial denture that replaces the missing natural tooth, restores its function and usually fills the space previously occupied by the natural tooth.
- One function of fixed prosthodontic treatment is to prevent tilting or drifting of the adjacent teeth into the edentulous space.
Test your knowledge of assessments for pontic design in prosthodontics with this quiz. Identify the ideal and loss of residual ridge contour, as well as the difficulties in fabricating a pontic.
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