DDS Trivia 3

Question 1

Which type of connector joins two or more retainers in a fixed partial denture?

Accepted Answer

Rigid connector

Answer

A rigid connector (solder joint or cast connector) joins retainers in a fixed partial denture, providing a solid, non-movable union between components.

Question 2

What is the term for the bony projection on the lingual surface of the mandible where the mylohyoid muscle attaches?

Accepted Answer

Mylohyoid ridge

Answer

The mylohyoid ridge (internal oblique ridge) runs diagonally on the lingual surface of the mandible and serves as the attachment for the mylohyoid muscle.

Question 3

Which carious lesion classification system is based on location and morphology rather than severity?

Accepted Answer

G.V. Black's cavity classification

Answer

G.V. Black's cavity classification (Classes I–VI) categorizes cavities by anatomical location and surface involved, forming the basis for cavity preparation design.

Question 4

The periodontal ligament space visible on radiographs appears as which structure?

Accepted Answer

A radiolucent space between root and lamina dura

Answer

The PDL space appears as a thin radiolucent line between the root surface (cementum) and the surrounding lamina dura (cortical bone of the socket).

Question 5

Which medication class is most likely to cause gingival hyperplasia as a side effect?

Accepted Answer

Calcium channel blockers

Answer

Calcium channel blockers (e.g., nifedipine, amlodipine) are well-documented causes of drug-induced gingival overgrowth, along with phenytoin and cyclosporine.

DDS - Doctor of Dental Surgery Practice Test

DDS - Doctor of Dental Surgery Practice Test

DDS Trivia 3