Abstract
A case of mandibular prognathism with acromegaly treated by orthognatic surgery is presented. The patient was a 26-year-old female who complained of malocclusion. She was diagnosed as having acromegaly from the results of clinical findings and endocrine examinations, and underwent surgery to remove a pituitary tumor, by neurological surgeons. As the value of Growth Hormone (GH) in the blood became normal after the operation, orthognathic surgery by SSRO was performed in our clinic. The postoperative course has been uneventful, and no sign of skeletal relapse has been found. Malocclusion and facial esthetics have been improved. However, long-term follow-up, considering the value of GH and facial form, including occlusion, is necessary.