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microdontia
Microdontia is a condition in which one or more teeth appear smaller than normal. In the generalized form, all teeth are involved. In the localized form, only a few teeth are involved. The most common teeth affected are the upper lateral incisors and third molars.
Teeth effected by microdontia may also have abnormal shape, and the abormal size may affect all the tooth, or only a part of the tooth.〔
==Definition==
Males tend to have larger teeth than females,〔 and tooth size also varies according race.〔 Abnormal tooth size is defined by some as when the dimensions are more than 2 standard deviations from the average. Microdontia is when the teeth are abnormally small, and macrodontia is when the teeth are abnormally large.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「microdontia」の詳細全文を読む
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