Cavity Preparation Flashcard

Front

Toilet of cavity

Back

Removal of debris by washing with H2O.

Front

Most common fracture occurring in amalgam restoration is seen at:

• Cavosurface margin
• The contact area
• The isthmus area
• Proximal box

Back

The isthmus area.

Front

Which one of the following statements about cavity preparations is FALSE?

Back

Class II cavity preparations for amalgam restorations must be extended onto the occlusal surface to provide adequate retention

Front

Tooth surfaces involved in class II design 6 are:

Back

Occlusal, proximal, part of facial and lingual surfaces.

Front

Class III amalgam restorations are usually prepared on:

Back

Distal surfaces of anterior teeth.

Front

When preparing a cavity, what dictates the size of the access?

Back

The need to allow access to the decay

Front

In a cavity preparation, what is the cavo-surface margin?

Back

Junction between cavity wall/floor and adjacent tooth surface.

Front

Optimum depth of a self-threading pin for an amalgam restoration:

Back

2 mm.

Front

G.V. Black concluded that the following areas on tooth surface are relatively non self cleanable:

Back

Pits and fissures.

Front

Caries-affected dentine:

Back

Is demineralised