Additional teeth - Kasei

Japanese: 加生歯 - かせいし
Additional teeth - Kasei

…The permanent dentition includes these teeth, also called successional teeth, as well as the molars that grow behind them. The molars belong to the deciduous dentition in embryology and are also called Zuwachszähne (German). However, because their time of emergence is similar to that of successional teeth and their function continues throughout life, they are included in the permanent dentition. …

*Some of the terminology explanations that refer to "additive teeth" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…永久歯には,代生歯successional teethとも呼ばれるこれらの歯のほかに,その後方にはえる大臼歯も含める。大臼歯は発生学的には乳歯に属する歯で,加生歯Zuwachszähne(ドイツ語)とも呼ばれる。しかし,はえる時期が代生歯のそれに似ており,機能も生涯にわたって営まれることから永久歯に含めている。…

※「加生歯」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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