Yang X, Dong Y, Zhang G
College of Stomatology, Hubei Medical University, Wuhan.
Zhonghua Kou Qiang Yi Xue Za Zhi. 1995 Jan;30(1):3-5, 63.
21 patients (mandibular prognathism = 11, mandibular retrognathism = 10) whose occlusal force and masticatory efficiency were measured and analysed preoperatively, three and six months following sagittal split ramus osteotomy. The result shows that, in individuals with mandibular retrognathism treated by lengthening of the mandible, the occlusal force and masticatory efficiency would decrease, in individuals with mandibular prognathism treated by reduction in mandibular length, the occlusal force and masticatory efficiency would increase. There is no linear correlation relationship between the change of the occlusal force and the movement of the angle and the distance of the mandible.
对21例患者（下颌前突11例，下颌后缩10例）在矢状劈开下颌升支截骨术前、术后3个月和6个月测量并分析其咬合力和咀嚼效率。结果显示，在下颌后缩患者通过延长下颌进行治疗时，咬合力和咀嚼效率会降低；在下颌前突患者通过缩短下颌长度进行治疗时，咬合力和咀嚼效率会增加。咬合力的变化与下颌角度和距离的移动之间不存在线性相关关系。
