“缺牙”的英语？

“缺牙”的拼音为：quē yá...

目的: 研究少汗性外胚叶发育不全引起先天缺牙的ED1基因突变.Objective : To detect ED 1 gene mutation in three hypohidrotic ectodermal dysplasia ( HED ) nuclear families.对于恒齿先天缺牙的治疗,常因延迟诊断或是不适当的处置,而加重困难度.Treatment of congenital missing of permanent t...