牙本质(dentin),也称为齿质、象牙质,是构成牙齿主体的微黄色组织,介于牙釉质与牙髓之间。牙本质的组成70%为无机物(主要为钙和磷),20%为有机物,10%为水分。硬度低于牙釉质,高于牙骨质。
和牙釉质不同的是,它终身都会继续不断地生长,因此当有蛀洞产生会自行长出新的牙本质修复[1]。
牙本质内外贯穿牙本质小管。
参考资料
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