What is the term for the junction of the walls of a cavity preparation with the external surface of the tooth?

The term "cavosurface" refers specifically to the junction where the walls of a cavity preparation meet the external surface of the tooth. This area is critical in restorative dentistry as it defines the boundary of the cavity and plays a vital role in the retention and sealing of restorative materials. Proper understanding of the cavosurface is essential for successful cavity preparation and filling procedures, as it helps ensure that restorations are effective and that the integrity of the tooth is maintained.

Recognizing the significance of the cavosurface aids dental professionals in achieving proper margins, which are essential for the longevity of dental restorations and the overall health of the tooth structure.