DDS Prosthodontics and Restorative Dentistry

Question 1

The Angle classification of malocclusion is based on the relationship between which teeth?

Accepted Answer

Maxillary and mandibular first permanent molars (and maxillary canine to lower first premolar)

Answer

Upper and lower central incisors

Answer

Upper and lower second premolars

Answer

Maxillary and mandibular canines only

Question 2

Which restorative material has the highest compressive strength and is most indicated for posterior stress-bearing restorations?

Accepted Answer

Amalgam

Answer

Glass ionomer cement

Answer

Composite resin

Answer

Zinc phosphate cement

Question 3

In complete denture fabrication, the Gothic arch (needle point) tracing is used to determine:

Accepted Answer

The centric relation position of the mandible

Answer

The vertical dimension of occlusion

Answer

The horizontal overlap (overjet) of the anterior teeth

Answer

The curve of Spee for posterior teeth placement

Question 4

The function of a surveyor in removable partial denture fabrication is to:

Accepted Answer

Determine the path of insertion and location of undercuts on abutment teeth

Answer

Measure the vertical dimension of the edentulous ridge

Answer

Calculate the occlusal vertical dimension at rest

Answer

Evaluate the fit of the final metal framework on stone casts

Question 5

Post-operative sensitivity after posterior composite resin placement is most commonly attributed to:

Accepted Answer

Polymerization shrinkage creating gap formation at the cavity margins

Answer

Fluoride release from the composite

Answer

Allergic reaction to bis-GMA resin

Answer

Excessive occlusal contacts on the new restoration

Question 6

The path of insertion of a complete denture is established perpendicular to:

Accepted Answer

The mean foundation plane of the residual ridges

Answer

The occlusal plane of the posterior teeth

Answer

The Frankfort horizontal plane

Answer

The incisal plane of the anterior teeth