... gomatic arch. The masseter muscle has fibers that run both vertically and caudolater- ally around the mandible. This anatomic arrangement facilitates lateral and rotational movements by the mandible, ... C, As a result of wear the occlusal surface changes; the cup gets smaller and disappears, leaving, for a time, the enamel spot; the dental star appears and changes from a line to a large ... upper 08 (cau- dal root), #9, #lo, and, #11 cheek teeth. The nasolacrimal canal travels just be- neath the surface of the maxilla, dorsal, and lateral to the infraorbital canal. Both of...