牙齿发育
牙齒形成的過程
牙齿发育或称牙生成(英语:odontogenesis),是胚胎细胞发育、生长成为牙齿,最后长于口腔内的复杂过程。虽然许多物种都有牙齿构造,但牠们的牙齿发育普遍和人类相同。人类牙齿必须经过良好的胚胎发育阶段,才能发展出健康的口腔环境、牙釉质、牙本质、牙骨质及牙周组织。乳齿在六至八周之间开始形成,恒齿则是第二十周时开始生长、逐渐取代乳齿[1],错过这段时间牙齿便不会发育。
![](http://up.wiki.x.io/wikipedia/commons/thumb/1/19/Molarsindevelopment11-24-05.jpg/300px-Molarsindevelopment11-24-05.jpg)
注释
编辑- ^ Ten Cate, A. R. Oral histology: development, structure, and function. St. Louis: Mosby. 1998: 81–102. ISBN 0-8151-2952-1.
参考资料
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- The American Dental Hygiene Association (页面存档备份,存于互联网档案馆). "Table II. Effects of nutrient deficiencies on tooth development" (页面存档备份,存于互联网档案馆). [2005-12-10]
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- Cate, A.R. Ten. Oral Histology: development, structure, and function. 5th ed. 1998. ISBN 0-8151-2952-1.
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外部链接
编辑- 生物人类学与古代人DNA (页面存档备份,存于互联网档案馆)
- 发育中牙齿的不同基因数据库 (页面存档备份,存于互联网档案馆)
- 兽医组织学,Dr. Thomas Caceci