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Prof. Dr. G. William Arnett

Lectures

1. How do I plan the face? Keep it simple and clinical.

The face is planned with a combination of factors including the patients facial desires, profile measurements, frontal measurements, airway measurements, and occlusal analysis. To start a waxbite CBCT is achieved. Then key clinical facial measurements are utilized to orient the CBCT volume in the 3d computer environment. The profile and frontal face are then surgically manipulated within the computer environment to achieve 3 dimensional correction of the face, airway, and bite. The corrected bite must be placed to optimize facial and airway needs.

2. The face – protocols for frontal and profile planning.

Orthognathic surgery determines the profile by controlling seven variables: 1. Upper incisor inclination, 2. Lower incisor inclination, 3. LF I advancement 4. Upper occlusal plane, 5. BSSO advancement or retraction, 6. Lower occlusal plane, and 7. Chin osteotomy.
The outline of the frontal face is controlled by manipulating the midlines, cants, and yaws of the upper and lower jaws. The inferior border outline of the mandible reflects adequate or inadequate control of the midline, cant, and yaw.


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