Professor SANG-HENG KOK
National Taiwan University
Abstract
Facial
asymmetry caused by deformity of the jaws always requires correction by
orthognathic surgery. In most cases, mandible is the major contributor of
asymmetric morphology since it forms the bony support of the lower face. The
maxilla usually contributes to the problem by the deviated dental midline, skew
arch form or canted occlusal plane that prevent symmetric positioning of the
mandible. Orthognathic therapy of maxillomandibular asymmetry requires
symmetric repositioning of the jaws. However, clinical reality sometimes defies
ideal positioning of the maxillomandibular complex. Factors such as
unpredictability of soft tissue change, asymmetry of other facial structures
and limited mobility of condylar segments can prevent the achievement of a perfect
symmetry. Our experiences in using orthognathic procedures for management of
jaw asymmetry are discussed.
