Objective:To investigate the relationship among the congenital hypodontia of mandibular incisor and malocclusion and the variation of medial distal dimension of mandibular canine.
目的:探讨下
恒切
先天缺失情况,
畸形的关系以及下尖近远中径的变化。
发育不全Objective:To investigate the relationship among the congenital hypodontia of mandibular incisor and malocclusion and the variation of medial distal dimension of mandibular canine.
目的:探讨下恒切先天缺失情况,畸形的关系以及下尖近远中径的变化。
So this fetus presented seeral signs of trisomy 21, including the hypoplasia of the nasal bone, hypodontia, micrognathia, and hypospadias.
这样，本例胎
显示21三体的若干征象：包括鼻骨发育不全、发育不全、
尿道下裂。
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