Developmentaldefect of enamel and dental caries in 1074 primary school children were investigated using the simplified DDE index.
本研究采用简化的DDE指数，对1074名城乡学龄前儿童进行乳牙釉质发育缺陷和龋齿的现况调查。
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Congenital microphthalmia is a developmentaldefect of ocular disorder with autosomal dominant, autosomal recessive, and X-linked recessive modes of inheritance.
Therefore, the dwarf mutation in X. helleri is caused by the developmentaldefect in spinal column, and the vertebral malformation underlies the body type alteration anatomically.