[Changes in the TMJ after moving of total maxilla upward and mandibular autorotation procedures]

Upward moving of total maxilla and mandibular autorotation procedures are new operations for correction of Long Face Syndrome and other maxillary deformities. What distance could maxilla be move upward and it's effect on TMJ had rarely been reported. This paper reports our study results using cephalometric analysis, measurement of TMJ position in preoperatively and postoperatively and clinical evaluation of TMJ. 1. The moving of maxilla upward should not go beyond the limit of 5 mm. If moving maxilla upward is more than 5 mm, the mandibular autorotation procedure should be avoided. 2. In this limit of 5 mm TMJ could adapt new position and doesn't produce pathological changes.