Diadectids likely had strong jaw muscles for processing plant material; the placement of the jaw joints above or below the level of the occlusal plane ( the plane at which the teeth come together ) would have given diadectid jaws mechanical advantage.
12.
Lefort III-Tenderness and separation at frontozygomatic suture, lengthening of face, depression of ocular levels ( enophthalmos ), hooding of eyes, and tilting of occlusal plane, an imaginary curved plane between the edges of the incisors and the tips of the posterior teeth.
13.
This system includes a horizontal and vertical component to classify the location of third molars ( predominately applicable to mandibular third molars ) : the third molar's relationship to the occlusal plane being the vertical or " x-component " and to the anterior border of the ramus being the horizontal or " y-component ".
