The surgical correction of mandibular protraction, retraction, and fractures of the ascending rami

摘要: Summary Corrective surgery of the mandible should fulfill certain definite mechanical and functional requirements that deal with three essential considerations: 1. Anatomic restoration symmetry this bone as a whole. 2. Proper position temporomandibular joints. 3. The maintenance or proper dental occlusion. principles involved are discussed illustrated. history present applied to prognathism micrognathism defined analyzed from standpoints technical objections advantages. Transection ascending rami through direct surgical approach is advocated method choice. blind performing operation in current use has some serious falls far short achieving end-result. transposition A prescribed direction osteotomy indicated every case. be constant within central area three-sixteenths an inch. predetermined by angle mass mandibular deformity type malrelationship arches. offers only means meeting these requirements. An operative procedure for correction protraction retraction presented. It consists permits visible suitable transection vertical rami. performance described supplementary complete cosmetic microgenia application devised osteosynthesis fractures discussed.