What are the internal surfaces of a cavity preparation called?

Question

Quizplus · Accepted Answer

The cavity wall is the internal surface of a cavity preparation.
The axial wall is the internal surface of a cavity preparation positioned in the same vertical direction as the pulp within the tooth.
The pulpal wall is the surface of the cavity preparation perpendicular to the pulp of a tooth.
The cavosurface margin is the outline of the preparation where it meets the tooth surface.

What Are the Internal Surfaces of a Cavity Preparation Called