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Mechanism of apatite formation on CaO-SiO₂-P₂O₅ glasses in a simulated body fluid 査読有り

Chikara Ohtsuki, Tadashi Kokubo and Takao Yamamuro

Journal of Non-Crystalline Solids 143 巻頁： 84-92 1992年5月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

It has been shown for various types of glasses and glass-ceramics that the essential condition for them to bond to living bone is the formation of an apatite layer on their surfaces in the body. CaO,SiO2-based glasses formed the surface apatite layer in a simulated body fluid, whereas CaO,P2O5-based glasses did not form it. This means that the rate of the apatite nucleation on the surfaces of the former glasses is much higher than that of the latter glasses. The increase in the degree of the supersaturation of the surrounding fluid with respect to the apatite due to dissolution of the calcium ion from the CaO,SiO2-based glasses was almost equal to that due to dissolution of the phosphate ion from the CaO,P2O5-based glasses. The high rate of the apatite nucleation on the surface of the former glasses is therefore attributed to the lower interface energy between the apatite and the glass surfaces. The CaO,SiO2-based glasses form a silica hydrogel on their surfaces prior to formation of the apatite layer. This means that the hydrated silica provides specific favorable sites for the apatite nucleation.

DOI： 10.1016/S0022-3093(05)80556-3

Compositional dependence of bioactivity of glasses in the system CaO-SiO₂-Al₂O₃: Its in vitro evaluation 査読有り

C. Ohtsuki, T. Kokubo and T. Yamamuro

J. Mater. Sci.: Materials in Medicine 3 巻頁： 119-125 1992年3月

A comparative study of ultrastructures of the interfaces between four kinds of surface-active ceramic and bone 査読有り

M. Neo, S. Kotani, T. Nakamura, T. Yamamuro, C. Ohtsuki, T. Kokubo and Y. Bando

J. Biomed. Mater. Res. 26 巻頁： 1419-1432 1992年

Differences in ceramic-bone interface between surface-active ceramics and resorbable ceramics: A study by scanning and transmission electron microscopy 査読有り

M. Neo, S. Kotani, Y. Fujita, T. Nakamura, T. Yamamuro, Y. Bando, C. Ohtsuki and T. Kokubo

J. Biomed. Mater. Res. 26 巻頁： 255-267 1992年

Chemical reaction of bioactive glass and glass-ceramics with a simulated body fluid 査読有り

T. Kokubo, H. Kushitani, C. Ohtsuki, S. Sakka and T. Yamamuro

J. Mater. Sci.: Materials in Medicine 3 巻頁： 79-83 1992年

Apatite Formation Induced by Silica Gel in a Simulated Body Fluid 査読有り

P. Li, C. Ohtsuki, T. Kokubo, K. Nakanishi, N. Soga, T. Nakamura and T. Yamamuro

J. Am. Ceram. Soc. 75 巻頁： 2094-2097 1992年

Mechanism and strength of bonding between two bioactive ceramics in vivo 査読有り

Y. Fujita, T. Yamamuro, T. Nakamura, T. Kitsugi, S. Kotani, C. Ohtsuki and T. Kokubo

J. Biomed. Mater. Res. 26 巻頁： 1311-1324 1992年

Compositional Dependence of Bioactivity of Glasses in the System CaO-SiO₂-P₂O₅: Its in Vitro Evaluation 査読有り

C. Ohtsuki, T. Kokubo, K. Takatsuka and T. Yamamuro

J. Ceram. Soc. Japan (Seramikkusu Ronbunshi) 99 巻頁： 1-6 1991年1月

Apatite formation on the surface of Ceravital-type glass-ceramic in the body 査読有り

C. Ohtsuki, H. Kushitani, T. Kokubo, S. Kotani and T. Yamamuro

J. Biomed. Mater. Res. 25 巻頁： 1363-1370 1991年

The bonding behavior of calcite to bone 査読有り

Y. Fujita, T. Yamamuro, T. Nakamura, S. Kotani, C. Ohtsuki and T. Kokubo

J. Biomed. Mater. Res. 25 巻頁： 991-1003 1991年

Bone bonding mechanism of β-tricalcium phosphate 査読有り

S. Kotani, Y. Fujita, T. Kitsugi, T. Nakamura, T. Yamamuro, C. Ohtsuki and T. Kokubo

J. Biomed. Mater. Res. 25 巻頁： 1303-1315 1991年

Difference in Bone Bonding Mechanisms between Surface Active Ceramics & Resorbable Ceramics : Scanning and Transmission Electron Microscopic Study 査読有り

M. Neo, S. Kotani, Y. Fujita, T. Nakamura, T. Yamamuro, Y. Bando, M. Yokoyama, C. Ohtsuki and T. Kokubo

Bioceramics, Vol.4, ed. by W. Bonfiedld, G. W. Hastings and K. E. Tanner, Butterworth-Heinemann, Guilford 頁： 165-170 1991年

Surface Structure of Bioactive Glass-Ceramic A-W Implanted into Sheep and Human Vertebra 査読有り

T. Kokubo, C. Ohtsuki, S. Kotani, T. Kitsugi and T. Yamamuro

Bioceramics, Vol. 2, ed. by G.Heimke, German Ceramic Society, Cologne 頁： 113-120 1990年9月

Bioactivity of Glass-Ceramics 査読有り

T. Kokubo, H. Kushitani, C. Ohtsuki, Y. Ebisawa, T. Kitsugi, K. Oura, S. Kotani and T. Yamamuro

Proceedings of XV International Congress on Glass, Vol.3a, ed. by O. V. Mazurin, Nauka, Leningrad 頁： 114-119 1989年7月

ZrS₂のホットプレス焼結と熱的変化査読有り

田中嘉一郎, 三木章伍, 大槻主税, 植月徹, 木島弌倫

材料 38 巻頁： 1-7 1989年

TiSe_1.6及びTiSe_1.5のホットプレス焼結と熱的変化査読有り

田中嘉一郎, 大槻主税, 植月徹, 中沢泰朗

窯業協会誌 96 巻頁： 165-170 1988年2月

TiSe₂の合成及びその焼結査読有り

田中嘉一郎, 大槻主税, 土居俊雄, 植月徹, 中沢泰朗

窯業協会誌 95 巻頁： 623-629 1987年6月

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