The Journal of Nihon University School of Dentistry
Online ISSN : 1884-2984
Print ISSN : 0029-0432
ISSN-L : 0029-0432
The Mineralization Pattern of Developing Fish Tooth Enameloid using X-ray Probe Microanalyzer, Historadiography and Radioactive Tracer (45Ca)
井上 嘉信内野 新平浅野 哲也長谷川 伸藤岡 良暢
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1973 年 15 巻 2 号 p. 52-57

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This study of the development and mineralization pattern of the enameloid of the teeth of the fish (Hoplognathus faciatus) demonstrated the following :
The enameloid intake of 45Ca in the early stages of its formation started near the dentino-enameloid junction. This was followed by calcification of the middle and superficial layers of the enameloid. This was verified by the historadiographs.
The combined scanning image of Ca, P and Mg obtained with the XMA also showed excellent agreement with the historadiographic images.
The individual XMA images for Ca and P each resembled the mixed image for Ca, P and Mg.
The image for Mg alone, however, showed a density much less than any of the others indicating its much lower concentration.

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