AGD Fixed and Removable Prosthodontics 2

Question 1

Which impression material is most appropriate for capturing fine detail in a full-arch fixed prosthesis preparation?

Accepted Answer

Polyvinyl siloxane (PVS)

Answer

Polyvinyl siloxane offers excellent dimensional stability, detail reproduction, and tear resistance, making it the gold standard for final impressions in fixed prosthodontics.

Question 2

A patient presents with a Kennedy Class II partial edentulous arch. How many modification spaces are allowed before the classification changes?

Accepted Answer

One modification space

Answer

Kennedy Class II (unilateral distal extension) allows only one modification space; a second modification would change the classification.

Question 3

What is the primary purpose of a surveyor in removable partial denture (RPD) design?

Accepted Answer

To determine the path of insertion and identify undercuts

Answer

A dental surveyor identifies the path of insertion, measures undercut depth, and helps design retentive and reciprocal components of an RPD.

Question 4

Which type of connector in an RPD framework crosses the midline and joins the bilateral components?

Accepted Answer

Major connector

Answer

The major connector (e.g., palatal bar or lingual bar) crosses the midline and rigidly joins all components of the RPD framework.

Question 5

During crown preparation for a posterior full-coverage restoration, which axial reduction guideline is most appropriate for a metal-ceramic crown?

Accepted Answer

1.5–2.0 mm facial reduction

Answer

Metal-ceramic crowns require approximately 1.5–2.0 mm of facial (buccal) reduction to accommodate both the metal coping and the porcelain layer.

(AGD) Academy of General Dentistry Certification Practice Test

(AGD) Academy of General Dentistry Certification Practice Test

AGD Fixed and Removable Prosthodontics 2