[TMJ-function following orthognathic surgery]

86 patients with dentofacial anomalies were examined to evaluate signs and symptoms of the stomatognathic system after orthognathic surgery. Clinical signs and symptoms were graded according to the anamnestic and clinical dysfunction index of Helkimo. Restriction of mouth opening in 37 patients influenced the anamnestic dysfunction index mainly to higher postoperative levels although the occurrence of symptoms as pain and tmj sounds decreased. No relationship between tmj pain-dysfunction and type of dysgnathia, surgical approach, molar support before and after surgery, age and sex was noted. It is concluded that surgical correction of dentofacial anomalies has a possible benefitialeffect on certain symptoms as tmj pain, but relief or impairment of clinical signs cannot be predicted preoperatively.