DANB Assisting with Restorative and Prosthodontic Procedures 2

Question 1

Which impression material is most commonly used for final impressions in crown and bridge procedures?

Accepted Answer

Polyvinyl siloxane (PVS)

Answer

Polyvinyl siloxane (PVS) and other elastomeric materials are preferred for final impressions because they provide high accuracy and excellent dimensional stability.

Question 2

Why is a temporary (provisional) cement used to seat a temporary crown?

Accepted Answer

It allows easy removal when the permanent crown is ready

Answer

Provisional cement holds the temporary crown securely during the fabrication period but allows the dentist to remove it easily at the delivery appointment.

Question 3

What is the purpose of a bite registration in a crown and bridge procedure?

Accepted Answer

To record the occlusal relationship between upper and lower teeth

Answer

A bite registration records the exact opposing relationship of the arches so the dental laboratory can fabricate the crown with correct occlusal contacts.

Question 4

Which of the following is a REMOVABLE prosthodontic restoration?

Accepted Answer

Complete denture

Answer

A complete denture is a removable prosthesis that the patient can take out, distinguishing it from fixed restorations that are permanently cemented.

Question 5

What is a 'pontic' in a fixed dental bridge?

Accepted Answer

The artificial tooth that replaces the missing tooth

Answer

The pontic is the artificial tooth component of a bridge that spans the edentulous space, supported by the abutment crowns on either side.

DANB General Chairside Assisting (GC) Test Practice Test

DANB General Chairside Assisting (GC) Test Practice Test

DANB Assisting with Restorative and Prosthodontic Procedures 2