[The diagnosis and surgical therapy of maxillofacial malformations. The statistical considerations].

In this report the authors develop a thorough statistic analysis upon the past 12-year activity (1980-1991) of the University of Rome, Department of Maxillo-Facial Surgery, in the field of the diagnosis and treatment of congenital or acquired maxillofacial malformations. They point out, in particular, the high frequency rate of bimaxillary osteotomy use in the surgical treatment of dentoskeletal malformations, that are the most frequent malformations in maxillofacial clinical practice. They also point out how wide the use of the rigid internal fixation technique in this surgical field has become.