What is the depth of the centric cusps of a partial veneer?

The depth of the centric cusps of a partial veneer is typically specified to be around 1.5 mm. This measurement is critical because it allows for appropriate reduction of tooth structure while ensuring adequate support and strength for the prosthetic material being used. A depth of 1.5 mm provides sufficient space for the material, whether it be porcelain or composite resin, ensuring that it can withstand occlusal forces without risking fracture or failure. This amount of reduction also helps in maintaining the aesthetics of the restoration while ensuring that the cusps are sufficiently retained to provide optimal function.

In comparison, other depths listed do not align with the standard recommendations for effective partial veneer preparation. A depth of 0.8-1.0 mm would be insufficient as it may not allow for the structural integrity required in the occlusal surface. A depth of 1.0 mm could potentially lead to compromised strength, especially under functional loads. Lastly, a depth of 0.6 mm is too shallow for reliable functional restoration and could overly compromise the tooth structure. Thus, the most appropriate depth for centric cusps in a partial veneer is 1.5 mm to achieve a balance between function, strength, and aesthetics.