Harrison J W, Roda R S
Baylor College of Dentistry, Department of Restorative Sciences, Dallas, Tex., USA.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1995 May;79(5):624-33. doi: 10.1016/s1079-2104(05)80106-4.
In the roots and root analogs of mammalian teeth a narrow zone of highly calcified tissue occupies the junction between cementum and dentin. This zone is referred to as "intermediate cementum," despite evidence that it is not a product of cementogenesis (or of dentinogenesis). Studies conducted on teeth of human and nonhuman primates indicate that the intermediate cementum layer contains enamel matrix proteins and is likely a product of Hertwig's epithelial root sheath. The available evidence regarding the development (origin), structure, and composition of intermediate cementum is reviewed, and the potential functions of this layer are assessed to include a possible role in wound healing.
在哺乳动物牙齿的牙根及牙根类似物中,一个高度钙化的狭窄组织区域占据着牙骨质和牙本质的交界处。尽管有证据表明它并非牙骨质生成(或牙本质生成)的产物,但该区域仍被称为“中间牙骨质”。对人类和非人类灵长类动物牙齿的研究表明,中间牙骨质层含有釉质基质蛋白,很可能是赫特维希上皮根鞘的产物。本文综述了关于中间牙骨质的发育(起源)、结构和组成的现有证据,并评估了该层的潜在功能,包括其在伤口愈合中可能发挥的作用。