ORE Part 2 Restorative Dentistry

Question 1

According to UK standards, what is the recommended minimum cavity preparation depth for a Class I amalgam restoration?

Accepted Answer

1.5 mm

Answer

2.0 mm

Answer

2.5 mm

Answer

1.0 mm

Question 2

Which matrix system is most appropriate for a Class II composite restoration involving a tight contact area?

Accepted Answer

Sectional matrix with separation ring

Answer

Tofflemire matrix

Answer

Siqveland matrix

Answer

Dead-soft foil matrix

Question 3

What is the primary advantage of rubber dam use during restorative procedures in the UK?

Accepted Answer

Moisture control and cross-infection prevention

Answer

Improved patient comfort

Answer

Reduced preparation time

Answer

Better visibility of occlusion

Question 4

When placing a posterior composite, which technique best reduces polymerisation shrinkage stress?

Accepted Answer

Incremental layering technique

Answer

Bulk-fill in a single increment

Answer

Flowable composite base only

Answer

Using large increments with long cure times

Question 5

In the UK, which shade guide is most commonly used for shade selection in anterior restorations?

Accepted Answer

VITA Classical

Answer

Munsell

Answer

NBS

Answer

Ostwald

Question 6

What does the term 'ferrule effect' refer to in crown preparation?

Accepted Answer

A band of tooth structure encircled by the crown margin

Answer

The use of a metal post to support a core

Answer

The occlusal reduction required for a full coverage crown

Answer

The taper angle of the preparation