[Diagnosis and therapeutic programming of mandibular symphysis dysmorphisms in patients with dento-osseous malformations].

Alterations in chin position in dentoskeletal dysmorphias are considering with a review of the literature on the prognosis of surgical treatment in dysmorphias of the chin symphysis. The treatment protocol then presented offers the possibility of programming the restoration of the correct physiological relationship between the bone bases and the correction of the aesthetic defects produced by dysmorphias of the chin symphysis on a single pre-operative graph. The problem in such programming lies in the extensive changes necessary to the bone and skin parameters during the functional operation that are difficult to foresee and quantify preoperatively.