周围The rate of malocclusion in normal students was 62. 3%, ankyloglossia 6. 6% , and abnormity labial frenum 4. 8%.
健康组
畸形患病
62.3％,舌系带过短6.6％,唇系带异常4.8％。
)咬合不正The rate of malocclusion in normal students was 62. 3%, ankyloglossia 6. 6% , and abnormity labial frenum 4. 8%.
健康组畸形患病62.3％,舌系带过短6.6％,唇系带异常4.8％。
Objective:To investigate the relationship among the congenital hypodontia of mandibular incisor and malocclusion and the variation of medial distal dimension of mandibular canine.
下颌恒切
先天缺失情况,与颌畸形
关系以及下尖近远中径变化。
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