Fixed Prosthodontics Lecture No:1 Quiz

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Questions and Answers

Which of the following is an advantage of replacing missing teeth with a Fixed Partial Denture (FPD)?

Very young patients where teeth have large pulp chambers
Restoring occlusal vertical dimension (correct)
Large amount of bone loss as in trauma
Damage to tooth and pulp

In which of the following situations is a Fixed Partial Denture (FPD) preferred?

Failures
Long span edentulous spaces
Short span edentulous arches (correct)
Very young patients where teeth have large pulp chambers

Which condition generally makes Fixed Partial Dentures (FPDs) avoidable?

Presence of periodontal compromised abutments (correct)
Patient’s preference
Ability to eat
Mentally compromised and physically handicapped patients who cannot maintain the removable prosthesis

What is a disadvantage of replacing missing teeth with a Fixed Partial Denture (FPD)?

Secondary caries (B) Signup and view all the answers

When are Fixed Partial Dentures (FPDs) generally preferred for patients?

The patient has the skills and motivations to maintain good oral hygiene (D) Signup and view all the answers

In which situation would a removable partial denture be unstable or retentive, making a Fixed Partial Denture (FPD) preferable?

Cases with ridge resorption (A) Signup and view all the answers

What are the ideal requirements of a pontic?

To be biologically acceptable (B) Signup and view all the answers

What is the advantage of a pontic with mucosal contact?

Aesthetically superior (B) Signup and view all the answers

Which type of pontic is indicated for knife-edged posterior ridges?

Without mucosal contact (C) Signup and view all the answers

Why might a partial crown retainer not be used for abutment teeth?

Caries or large restorations involving the buccal surface (D) Signup and view all the answers

When might it be necessary to reduce a retentive feature of a preparation?

To create space for a minimal-preparation retainer (D) Signup and view all the answers

What is the least conservative type of crown?

All ceramic crown (C) Signup and view all the answers

What is a disadvantage of a pontic with mucosal contact?

Inaccessible gingival surface for cleaning (D) Signup and view all the answers

What is a bridge (Fixed Partial Denture)?

An appliance replacing one or more teeth that cannot be removed by the patient (A) Signup and view all the answers

What is the purpose of a post crown?

To replace the natural crown entirely and retain itself by means of a dowel inside the root canal space (B) Signup and view all the answers

What is the function of a pontic in dental terminology?

An artificial tooth as part of a bridge (A) Signup and view all the answers

How are fixed partial dentures classified based on the location of the edentulous space?

Posterior, anterior, and combination (D) Signup and view all the answers

What is the role of an abutment in dental prosthetics?

A tooth to which a bridge is attached (B) Signup and view all the answers

In which ways are all metal crowns and all ceramic crowns different?

All metal crowns are used only to replace posterior teeth while all ceramic crowns are aesthetic and metal-free (D) Signup and view all the answers

Partial veneer crowns are generally more conservative than full crowns

True (A) Signup and view all the answers

All ceramic crowns are the most conservative type of crown

False (B) Signup and view all the answers

Fixed-movable bridges always have a major retainer at one end of the pontic and a minor retainer at the other

True (A) Signup and view all the answers

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Study Notes

Bilateral edentulous spaces require cross arch stabilization.
Medically compromised patients (e.g. leukemia, hypertension), very old patients, and congenitally malformed teeth with insufficient tooth structure may require restorative dental work.
A crown is a fixed extra-coronal restoration that restores missing tooth structure.
Full veneer crown covers all surfaces of the tooth, while partial veneer crown covers some of the tooth crown and leaves the rest intact.
Laminate veneers are a type of partial veneer, a conservative method for restoring the appearance of discolored, pitted, or fractured anterior teeth.
Post crown replaces the natural crown entirely and retains itself by means of a dowel (post) inside the root canal space.
A bridge (Fixed Partial Denture) is an appliance replacing one or more teeth that cannot be removed by the patient.
Fixed partial dentures are classified based on the location of the edentulous space: posterior, anterior, and combination.
Abutment is a tooth to which a bridge is attached, and a retainer is a crown or other restoration cemented to the abutment.
Pontic is an artificial tooth as part of a bridge, and a span is the space between natural teeth that is to be filled by the bridge.
A pier is an abutment tooth standing between and supporting two pontics.
A bridge with two retainers and one pontic is a three-unit bridge.
Connectors connect a pontic to a retainer or two retainers to each other, and they may be fixed or allow some movement.
Fixed partial dentures are made of various materials, including all metal, metal ceramic, all ceramic, and metal with resin facings.
All metal crowns are used only to replace posterior teeth, while all ceramic crowns are aesthetic and metal-free.
Fixed partial dentures are compared to removable partial dentures in the field of fixed prosthodontics.