EFDA Restorative & Preventive Dental Procedures 4

Question 1

What is the recommended curing light distance from the composite surface during polymerization to ensure adequate depth of cure?

Accepted Answer

As close as possible without touching, within 1-2 mm

Answer

Holding the curing light tip within 1-2 mm of the composite surface maximizes light intensity and ensures adequate depth of cure.

Question 2

A tooth with a proximal carious lesion is being restored. Which cavity preparation classification describes this lesion on a posterior tooth?

Accepted Answer

Class II

Answer

Class II cavity preparations involve the proximal surfaces (mesial or distal) of posterior teeth (premolars and molars).

Question 3

When performing a rubber dam application for an amalgam restoration, the rubber dam clamp should be placed:

Accepted Answer

One tooth distal to the tooth being restored

Answer

Placing the clamp one tooth distal to the operative tooth keeps it out of the working field and provides clear access.

Question 4

The EFDA is preparing to place a base under a deep amalgam restoration. Which base material has the best pulp-protective (obtundent) properties?

Accepted Answer

Calcium hydroxide

Answer

Calcium hydroxide stimulates reparative dentin formation and has direct pulp-capping and obtundent properties near the pulp.

Question 5

During coronal polishing, which type of tooth surface should be polished LAST to prevent cross-contamination?

Accepted Answer

Areas adjacent to carious lesions or open margins

Answer

Carious or compromised areas are polished last to avoid spreading bacteria or debris to healthy tooth surfaces.

(EFDA) Expanded Function Dental Auxiliary Practice Test