Cavosurface is defined as the junction between the cavity prep and which surface?

Cavosurface is defined as the junction between the cavity prep and which surface?

• A. Exterior surface of the tooth
• B. Pulp chamber
• C. Root surface
• D. Gingival tissue

Answer: (A)

Cavosurface is the boundary where the prepared cavity meets the exterior surface of the tooth. This border is at the enamel on the crown or cementum on the root, representing the outer tooth surface that the cavity prep ends at. It’s not the internal pulpal chamber, nor gingival tissue, nor a specific root surface—the term describes the junction with the tooth’s outer surface.

Cavosurface is the boundary where the prepared cavity meets the exterior surface of the tooth. This border is at the enamel on the crown or cementum on the root, representing the outer tooth surface that the cavity prep ends at. It’s not the internal pulpal chamber, nor gingival tissue, nor a specific root surface—the term describes the junction with the tooth’s outer surface.