Restorative

Question 1

Definition of cavity margins?

Answer 1

Junction between walls of cavity and external surface of the tooth

Question 2

What are cavo-surface margin angles?

Answer 2

Angle formed at cavity margins (any junction between prepared and unprepared tooth)

Question 3

What is the line angle of a cavity prep

Answer 3

The line formed from any 2 surfaces meeting at an apex

Question 4

What is a point angle in a cavity prep?

Answer 4

The point formed from converging of 3 surfaces

Question 5

Occlusal/pulpal floor of a restoration definition?

Answer 5

Surface of cavity prep parallel with occlusal plane overlying the pulp

Question 6

Gingival floor definition in cavity prep?

Answer 6

Surface of interproximal cavity that lies parallel with the occlusal plane at the gingival margin

Question 7

What is the pulpal axial wall in a restorative cavity?

Answer 7

Axial wall (surface of cavity parallel to the long axis of the tooth) between gingival and occlusal floor for the pulp horn

Question 8

Buccal/lingual axial wall

Answer 8

Axial walls bounded to cavosurface angle and floors of cavity

Question 9

What is the isthmus in a restorative cavity?

Answer 9

Narrowest part of occlusal key cut in proximity-occlusal preparations for retention

Question 10

What is the proximal surface of the tooth

Answer 10

Face of tooth facing the wall of the other neighbouring tooth

Question 11

What is the marginal ridge of a tooth?

Answer 11

Raised mesial and distal parts of the occlusal area at proximal areas