1973年Michelet等介绍了下颌骨外斜嵴放置微小夹板治疗下颌角骨折的方法。升下颌肌和咬合力的双重作用可产生位于下颌角区并沿其上缘分布的自然张 力带,如沿张力带行骨折微小夹板固定,将抵消自然的分散骨折片的肌力。本文应用光弹树脂模型对此进行了评价。 采用光弹树脂复制10副下颌骨模型,其中5副造成下颌角骨折,并以下颌骨上缘微小夹板固定,另外5副为对照组。采用刺激下颌生理运动的方法,对下颌骨 In 1973, Michelet introduced the method of placing the tiny splint on the external oblique ridge of the mandible in the treatment of mandibular angle fractures. The dual effect of raising the lower jaw muscle and occlusal force produces a natural tension band located in the mandibular angle zone and distributed along its upper edge. Fixation of a small splint along the tension band will counteract the natural muscle strength of the fragmented fracture plate. In this paper, the application of photoelastic resin model was evaluated. A total of 10 mandibular models were replicated with photoelastic resin, of which 5 caused mandibular angle fractures and were fixed with a small splint on the superior margin of the mandible. The other 5 were control groups. Using the method of stimulating the physiological movement of the mandible, the mandible