The bony ridge over the labial portion of the roots of the canines that helps to form the facial contours is the:

Question

Quizplus · Accepted Answer

The bony ridge over the labial portion of the roots of the canines is known as the canine eminence. It helps to form the facial contour and provides support for the upper lip, which rests on this ridge when the lips are closed. The other options, such as cusp and imbrication line, do not specifically refer to the bony ridge over the canines. Therefore, option D is the correct answer.

The Bony Ridge Over the Labial Portion of the Roots