- The Alveolar Process of the Mandible has sixteen sockets for the teeth. Normally the inferior teeth are set slightly "within" those of the upper jaw to afford a satisfactory
Physiognomically, the position of the lower jaw affects the surface contour of the mouth.
The lower lip should be slightly posterior to the upper lip.
In normal repose, the upper and lower teeth are not tightly contacted. There is a slight interval between them.
Tight contact in posing the teeth destroys the appearance of relaxation.
Tight facial muscles will change the form of the cheeks.