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变异牙是指牙齿在胚胎时期由于发育障碍引起牙的整体或局部发生程度不同的形态改变,轻者称为牙的发育异常,重者称为牙的畸形。由于发育异常和畸形之间没有明显的界限,因此本文将发育异常和畸形的牙都
Mutation is the teeth during the embryonic period due to developmental disorders caused by the overall or partial occurrence of dental different morphological changes, the light known as the tooth dysplasia, severe cases known as the tooth deformity. Due to the developmental abnormalities and no obvious boundaries between deformities, this article will be abnormal development and deformity of the teeth are