Crown & Bridge An Introduction to Fixed Prosthodontics Quiz

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Which type of crown replaces the natural crown entirely and retains itself by means of a dowel extended inside the root canal space?

Three-quarter crown

Non-metal crown

Post crown (correct)

Metal crown

What is the purpose of a bridge in dentistry?

To change the position of teeth

To remove natural teeth

To support crowns

To restore the function and aesthetics of missing teeth (correct)

What is the part of a bridge that joins the individual components of the bridge together?

Retainer

Pontic

Abutment tooth

Connector (correct)

What material is a metal crown typically made from?

Gold alloy Signup and view all the answers

Which type of crown covers all tooth surfaces except the buccal surface?

Three-quarter crown Signup and view all the answers

What is the purpose of a retainer in a dental bridge?

To cover the abutment tooth Signup and view all the answers

Which material is NOT commonly used in making non-metal crowns?

Gold alloy Signup and view all the answers

How is a post crown retained inside the tooth?

Using a dowel extended inside the root canal space Signup and view all the answers

What is the function of a pontic in a dental bridge?

To occupy the position of missing natural teeth Signup and view all the answers

What is the recommended axial wall depth for a Modified Class V restoration?

0.2mm Signup and view all the answers

Which type of lesion is indicated for a Modified Class V restoration?

Lesion entirely in enamel Signup and view all the answers

When preparing a tooth for a Modified Class V restoration, what type of wall depth is preferred?

Divergent wall Signup and view all the answers

Which instrument should be used to prepare the tooth in a Modified Class V restoration?

Round or elliptical instrument Signup and view all the answers

In a Modified Class V restoration, what is NOT indicated when preparing the cavity?

Retention groove Signup and view all the answers

What should be used to protect adjacent unprepared teeth from acid etchant during a Class V restoration?

Polyester strip Signup and view all the answers

How long should etchant be left undisturbed on the tooth surface during a Class V restoration?

15 seconds Signup and view all the answers

What is the purpose of using a polishing cup with pumice in restorative dentistry?

To clean tooth preparation Signup and view all the answers

In a Modified Class V restoration, what type of margins are NOT prepared during cavity preparation?

90 degrees cavosurface Signup and view all the answers

What is the recommended initial depth of the preparation in a Modified Class V restoration?

0.2 mm Signup and view all the answers