为探讨颌间固定对嚼肌的影响,作者对成年猿施行了颌间固定,利用电镜对嚼肌进行了细胞化学研究,结论如下:1.光镜观察:固定后4周可见轻度的单纯性肌萎缩,并持续到固定后8周。2.组织学观察:未见特异表现。嚼肌浅层中央部由Ⅰ型和Ⅱ型纤维构成,对照组及固定后8周组Ⅰ型纤维占多数。3.早期即产生超微结构 In order to explore the impact of intermaxillary fixation on the chewing muscles, the author performed an intermaxillary fixation on the adult ape. Electron microscopy was used to study the chewing muscles. The conclusions are as follows: 1. Light microscopy: mildly pure Muscular atrophy persisted until 8 weeks after fixation. 2. Histological observation: no specific performance. The middle part of the muscle was composed of type I and type II fibers, while the type I fibers in the control group and the group of 8 weeks after fixation were the majority. Early generation of ultrastructure