Objective:To investigate the relationship among the congenital hypodontia of mandibular incisor and malocclusion and the variation of medial distal dimension of mandibular canine.
目
:探
下
恒切
先天缺失情况,与
关系以及下尖近远中径变化。
)咬合不正Objective:To investigate the relationship among the congenital hypodontia of mandibular incisor and malocclusion and the variation of medial distal dimension of mandibular canine.
目:探下恒切先天缺失情况,与关系以及下尖近远中径变化。
The rate of malocclusion in normal students was 62. 3%, ankyloglossia 6. 6% , and abnormity labial frenum 4. 8%.
健康组错患病率62.3％,舌系带过短率6.6％,唇系带异常率4.8％。
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