Question

Which cusp is most likely to be absent on a maxillary second molar?

A) Mesiolingual cusp
B) Mesiofacial cusp
C) Distolingual cusp
D) Distofacial cusp

Answer 1

The most likely cusp to be absent on a maxillary second molar is the distolingual cusp.

Step-by-step explanation:

The cusp most likely to be absent on a maxillary second molar is the Distolingual cusp. The maxillary second molars typically have three cusps: the mesiolingual, mesiofacial, and distolingual cusps. However, it is common for the distolingual cusp to be smaller or absent compared to the other cusps. This variation is due to differences in tooth development and can occur in individuals.