The lingual surfaces of anterior teeth have rounded,raised borders on the mesial and distal surfaces that are called:

Question

Quizplus · Accepted Answer

Marginal ridges are rounded,raised borders on the mesial and distal portions of the lingual surfaces of anterior teeth and the occlusal surface of the posterior teeth.
A cingulum is a raised,rounded area on the cervical third of the lingual surface of anterior teeth.
A fossa is a wide,shallow depression on the lingual surface.
The mamelons are rounded enamel extensions on the incisal ridges of newly erupted anterior teeth.

The Lingual Surfaces of Anterior Teeth Have Rounded,raised Borders on the Mesial