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:探讨下颌恒切先天缺失情况,与颌畸形以及下尖近远中径变化。
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:探讨下颌恒切先天缺失情况,与颌畸形以及下尖近远中径变化。
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21三体若干征象:包括鼻骨不全、不全、小颌和尿道下裂。
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