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《Journal of Dental Prevention and Treatment》 2003-02
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The Quantitative Analysis on the Calcium ion Transferring into Enamel by Ion Exchange Resin.

Zhang Zhimin, et al. The Department of Endodontics School of Stomatology, Jilin University, Jilin 130041  
Objective To investigate the function of ion exchange resin for transferring calcium ion into enamel and provide the theoretical basis for re calcification therapy. Methods Immerse the pieces of enamel into the 45 Ca ion exchange resin, as experimental group, and into the 45 Ca CaCl 2 solution, as control group. After 0.5 hour, 2 hours, and 12 hours, the amount of radiation from the samples were measured respectively. Results The 45 Ca transferring into enamel was observed after 0.5 hour, with the amount of radiation of 9.055/mm 2, the peak of transferring occurred after 2 hours, with 20.675/mm 2, and the transferring rate began to decrease after 12 hours, with 15.775/mm 2. There was significant difference between experimental group and control group(P0.005). Conclusions The ion exchange resin can transfer much more calcium ion into the enamel as compared to CaCl 2 solution.
【Fund】: 吉林省科委资助项目 (编号 :95 3 460 2 )
【CateGory Index】: R780.1
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