|
Simultaneous combination of Condylar Rotation and Translation |
|
|
|
| The mandible does not naturally open and close with a simple hinging motion.
The red arrow (in the diagram to the right) represents the Digastric muscle's effect of mandibular depressing (opening).
The combinded efforts of the Digastrics and Lateral Pterygoids provide for natural jaw opening.
|
 |
Due to the orientation of the Lateral Pterygoids and the oblique alignment of the condyles in relation to each other, contraction of the Lateral Pterygoids initiates an instantaneous translation of the condyles. The slope of the
eminance provides for immediate mandibular depression and disclusion of the teeth.
|
 |
|
Education 