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Wits 法是头影测量的方法之一。它是上下颌基骨矢状关系线距的测量方法,并排除了颅底解剖变异对基骨矢状关系的影响。本文研究对象为56例正常成人头颅侧位定位 X 线片。其中男26例,女30例,年龄16～20岁,平均为20岁11个月。研究结果为1.男女合计中位数值为-1.28mm,95%正常值范围为-7.73～3.84mm。2.男性 BO 点在 AO 点前约1.00mm。女性 BO 点在 AO 点前约2.00mm(无统计学意义,有待继续观察)。本资料可供正畸临床参考。
Wits method is one of the methods of cephalometric measurement. It is a method of measuring the sagittal distance between the maxillary and mandibular bones, and excludes the effects of anatomic variations in cranial base on the sagittal relationship of the basilar bone. In this study, 56 normal adult skull position X-ray films. There were 26 males and 30 females, aged from 16 to 20 years, with an average of 20 years and 11 months. The result was 1. The combined median of men and women was -1.28 mm, and the 95% normal range was -7.73 to 3.84 mm. 2. Male BO point before AO point about 1.00mm. The female BO point was about 2.00mm before AO point (no statistical significance, to be observed). This information is for orthodontic clinical reference.