亚里士多德说女人比男人的牙齿要少。尽管他结了两次婚，但是他都没想过要检查一下他老婆的牙。
Aristotle maintained that women have fewer teeth than men; although he was twice married, it never occurred to him to verify this statement by examining his wives' mouths.
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 ED1 gene mutation in three hypohidrotic ectodermal dysplasia (HED) nuclear families.
牙科复合树脂具有使用方便、牙体预备量少、颜色美观等优点，在临床上的使用越来越广泛，但在临床观察和实验室研究中均发现复合树脂对人体存在一定的刺激。
Composite resin has been used widely in clinic, for its good color and little reduction of teeth. However, it has been reported that composite resin was an adverse stimulating factor on human.
牙科复合树脂具有使用方便、牙体预备量少、颜色美观等优点，在临床上的使用越来越广泛，但在临床观察和实验室研究中均发现复合树脂对人体存在一定的刺激。
Composite resin has been used widely in clinic, for its good color and little reduction of teeth. However, it has been reported that composite resin was an adverse stimulating factor on human.
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