Characterization of the phosphate units in rat dentin by solid-state NMR spectroscopy

Yao Hung Tseng, Yi Ling Tsai, Tim W.T. Tsai, John C.H. Chao, Chun Pin Lin, Shih Hao Huang, Chung Yuan Mou, Jerry C.C. Chan

研究成果: 雜誌貢獻文章同行評審

29 引文 斯高帕斯(Scopus)

摘要

Dentin samples of the incisor taken from Wistar rats of different ages are studied. A series of physical techniques are used to characterize the samples, with particular emphasis on 31P solid-state nuclear magnetic resonance. The structure of incisor dentin in rats can be described as apatite crystallites embedded in an amorphous matrix. We find that 19% of the apatite crystallites contain hydroxyl groups, which are distributed near the surface of the crystallites. The internal region of the crystallites is deficient in hydroxyl groups. As rats mature with age, there are several changes in the chemical composition of the incisor dentin: (i) the water content and phosporous amount in the amorphous matrix decrease; (ii) the amount of the phosphorus species in the apatite crystallites remains the same; and (iii) the loss of phosphorus species is accompanied by approximately the same loss of the calcium content.

原文英語
頁(從 - 到)6088-6094
頁數7
期刊Chemistry of Materials
19
發行號25
DOIs
出版狀態已發佈 - 12月 11 2007
對外發佈

ASJC Scopus subject areas

  • 化學 (全部)
  • 化學工程 (全部)
  • 材料化學

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