Cavity Preparation

Question 1

Define simple cavity

Answer 1

Lesion is confined to one surface

Question 2

Define compound cavity

Answer 2

Two surfaces of the same tooth

Question 3

Define complex cavity

Answer 3

Greater than two surfaces on the same tooth

Question 4

In an Amalgam Class I preparation, the marginal ridge must be greater than what?

Answer 4

1.6 mm. If it is less than 1.6 mm, the preparation should be converted to a class II.