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本文对贵州地区523例成人下颌骨的下颌网枕、颏形及摇椅式下颌骨的出现率等进行了观察与测量。结果如下: 一、下颌圆枕的观察与测量据人类学资料记载,在人类下颌齿槽突内侧,常有发育程度不等的圆形或椭圆形骨质隆起,称为下颌圆枕。从目前资料看,下颌圆枕在不同种族间的出现率不一样。据统计,现代蒙古人种较多地出现这种结构。如爱斯基摩人的出现率为70％以上,中国人占70％以上,印第安人占13
This article observed and measured the incidence of mandibular mandibular net pillow, chin and rocking chair mandible in 523 adult patients in Guizhou Province. The results are as follows: First, the mandibular circular pillow observation and measurement According to anthropological data records, in the human mandibular alveolar process, often varying degrees of development of round or oval-shaped bone bulge, known as mandibular circular pillow. Judging from the current data, the incidence of mandibular ring pillow in different races is not the same. According to statistics, this structure appears more in modern Mongol ethnic groups. If the incidence of Eskimos 70% or more, the Chinese accounted for more than 70%, Indians accounted for 13