Fixed Partial Denture (FPD) Questions
and Answers (Solved Papers).
What happens if we don't restore a missing tooth? - CORRECT ANSWERS -
supraeruption (increase in decay)
- drifting/shifting
Structure of a dental bridge - CORRECT ANSWERS - abutment
- retainer
- pontic
- connector
- edentulous ridge
- span
Abutment - CORRECT ANSWERS a tooth, a portion of a tooth, or that
portion of a dental implant that serves to support and/or retain a prosthesis
Retainer - CORRECT ANSWERS that part of a fixed or removable partial
denture uniting the abutment to the other elements of a prosthesis that surrounds all or
part of the prepared crown
Pontic - CORRECT ANSWERS an artificial tooth on a fixed partial denture
that replaces a missing natural tooth, restores its function, and usually restores the
space previously occupied by the clinical crown
Connector - CORRECT ANSWERS rigid (or non-rigid) uniting portion,
connecting pontic and retainers
Edentulous ridge - CORRECT ANSWERS the site of the alveolar bone and
its covering soft tissues that remains after tooth loss (#6)
Span - CORRECT ANSWERS the space to be restored between two
abutments
Indications for FPD - CORRECT ANSWERS - replace the function of missing
teeth
- stabilize occlusion and prevent teeth from drifting or extruding
- restore aesthetics and phonetics
Contraindications for FPD - CORRECT ANSWERS - excessive loss of
alveolar ridge, making it difficult to achieve aesthetic results
, - periodontal compromise of abutment teeth due to bone loss or poor crown-to-root ratio
- abutment teeth that are heavily restored or not restorable
- long spans between potential abutments which exceed structural limits
- a middle abutment that is severely erupted compared to other side abutments
Biologic preparation principles - CORRECT ANSWERS - conservation of
tooth structure
- supragingival margins
- harmonious occlusion
- protection against tooth fracture
- avoidance of overcontouring
Restoration/tooth interface preparation principles - CORRECT ANSWERS -
adhesion
- enamel vs. dentin
- mechanical retention and reistance
- restoration durability
Esthetic preparation principles - CORRECT ANSWERS - making discolored
abutments
- maximum thickness of porcelain
- porcelain occlusion surfaces
- subgingival margins
- minimal display of metal
The pulp is _______ to the outer surface in younger patients and _______ to the outer
surface in older patients - CORRECT ANSWERS closer ; further
With patients with limited VDO we can use... - CORRECT ANSWERS special
hand pieces and burs
Chamfer margin - CORRECT ANSWERS
Shoulder margin - CORRECT ANSWERS
All unsupported enamel must be removed, including the J margin because... -
CORRECT ANSWERS - plaque buildup
- lack of marginal sealing
Convergence preparation - CORRECT ANSWERS
Divergent preparation - CORRECT ANSWERS
Gold crown cervical margin - CORRECT ANSWERS 0.25 mm supragingival
Gold crown margin - CORRECT ANSWERS continuous chamfer
and Answers (Solved Papers).
What happens if we don't restore a missing tooth? - CORRECT ANSWERS -
supraeruption (increase in decay)
- drifting/shifting
Structure of a dental bridge - CORRECT ANSWERS - abutment
- retainer
- pontic
- connector
- edentulous ridge
- span
Abutment - CORRECT ANSWERS a tooth, a portion of a tooth, or that
portion of a dental implant that serves to support and/or retain a prosthesis
Retainer - CORRECT ANSWERS that part of a fixed or removable partial
denture uniting the abutment to the other elements of a prosthesis that surrounds all or
part of the prepared crown
Pontic - CORRECT ANSWERS an artificial tooth on a fixed partial denture
that replaces a missing natural tooth, restores its function, and usually restores the
space previously occupied by the clinical crown
Connector - CORRECT ANSWERS rigid (or non-rigid) uniting portion,
connecting pontic and retainers
Edentulous ridge - CORRECT ANSWERS the site of the alveolar bone and
its covering soft tissues that remains after tooth loss (#6)
Span - CORRECT ANSWERS the space to be restored between two
abutments
Indications for FPD - CORRECT ANSWERS - replace the function of missing
teeth
- stabilize occlusion and prevent teeth from drifting or extruding
- restore aesthetics and phonetics
Contraindications for FPD - CORRECT ANSWERS - excessive loss of
alveolar ridge, making it difficult to achieve aesthetic results
, - periodontal compromise of abutment teeth due to bone loss or poor crown-to-root ratio
- abutment teeth that are heavily restored or not restorable
- long spans between potential abutments which exceed structural limits
- a middle abutment that is severely erupted compared to other side abutments
Biologic preparation principles - CORRECT ANSWERS - conservation of
tooth structure
- supragingival margins
- harmonious occlusion
- protection against tooth fracture
- avoidance of overcontouring
Restoration/tooth interface preparation principles - CORRECT ANSWERS -
adhesion
- enamel vs. dentin
- mechanical retention and reistance
- restoration durability
Esthetic preparation principles - CORRECT ANSWERS - making discolored
abutments
- maximum thickness of porcelain
- porcelain occlusion surfaces
- subgingival margins
- minimal display of metal
The pulp is _______ to the outer surface in younger patients and _______ to the outer
surface in older patients - CORRECT ANSWERS closer ; further
With patients with limited VDO we can use... - CORRECT ANSWERS special
hand pieces and burs
Chamfer margin - CORRECT ANSWERS
Shoulder margin - CORRECT ANSWERS
All unsupported enamel must be removed, including the J margin because... -
CORRECT ANSWERS - plaque buildup
- lack of marginal sealing
Convergence preparation - CORRECT ANSWERS
Divergent preparation - CORRECT ANSWERS
Gold crown cervical margin - CORRECT ANSWERS 0.25 mm supragingival
Gold crown margin - CORRECT ANSWERS continuous chamfer
