Figure 7.

Occlusal view of the most optimal tooth (optimum, upper left), the least optimal tooth (T1, upper right), and three suboptimal teeth (SubOpt1–3, bottom) using the optimality criterion set forth in this paper. Short, green lines on the occlusal surface of the tooth depict sharp cusps, medium length, yellow line depicts a cusp with a medium level of sharpness, and long, red lines depict dull cusps. Cusp a is the lower, left hand cusp, cusp b is the lower right, cusp c is the upper left and cusp d is the upper right.