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为了解正颌手术对(牙合)力的影响,作者于术前、术后半年和术后一年分别测试了70例行上颌或下颌颁迁徙术患者第一磨牙区的最大(牙合)力、咀嚼压力和吞咽状态时的(牙合)力,并对术前、后颌面几何构形及嚼肌和颞肌机械效率的变化和(牙合)力的变化关系作了分析,结果显示:在15例行上颌上徙术者中,10例术后(牙合)力增加了20%以上,3例(牙合)力变化不大,2例术后(牙合)力降低了20%以上;在34例行下颌前徙术者中,11例术后(牙合)力增加了20%以上,11例(牙合)力变化不大或无变化,12例术后(牙合)力降低了
In order to understand the effect of orthognathic surgery on occlusal force, the authors tested the maximal (occlusal) maxillary occlusal area of 70 patients with maxillary or mandibular first molar surgery preoperatively, six months after surgery and one year after surgery. Force, chewing pressure and swallowing state (occlusal) force, and preoperative and maxillofacial geometry and mechanical changes in the masseter and temporal muscles and (occlusion) force changes were analyzed, the results The results showed that among the 15 patients who underwent maxillofacial surgery, the postoperative occlusal force of 10 patients increased by more than 20%, the force of 3 patients did not change much, and the postoperative occlusion force of 2 patients decreased 20%. Of the 34 patients who underwent mandibular anteroplasty, the postoperative occlusal force of 11 patients increased by more than 20%, and the force of the 11 patients (occlusal) changed little or no change. Twelve patients Together) the power is reduced