Neuromuscular adaptation to surgical superior repositioning of the maxilla.

This study was designed to evaluate neuromuscular adaption to orthognathic surgery. Fifteen adults were evaluated before and three months after surgical superior repositioning of the maxilla via computerized morphometric, kinesiometric, and electromyographic instrumentation. The findings of this study suggest that immediate and complete adaptation mediated by the central nervous system is followed gradually by delayed and partial compensatory adaptation within the muscles, tendons, and bones of the stomatognathic system.