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| 镧、铈、氟在抑制人离体牙根面脱矿中作用的比较研究 | |
| 引用本文： | 金晖 张伟国 刘瑷如. 镧、铈、氟在抑制人离体牙根面脱矿中作用的比较研究[J]. 上海口腔医学, 1995, 4(3): 151-154 |
| 作者姓名： | 金晖 张伟国 刘瑷如 |
| 作者单位： | [1]中国人民解放军八五医院口腔科 [2]上海第二医科大学口腔医学院口腔病理教研室200011 |
| 摘 要： | 作者采用含镧(La)、铈(Ce)、氟(F)的脱矿液，在体外模拟口腔pH循环变化的环境中对离体人牙根面进行抑制脱钙的实验研究，并采用化学及能谱分析手段，对La，Ce，F在根面的抑制脱钙作用进行定量分析。结果显示，这三种微量元素对根面均有明显的抑制脱钙作用，但F较La、Ce的抑制作用强．该研究还从晶体物理化学角度对La、Ce、F的抑制脱矿作用的机理进行探讨。 |
| 关 键 词： | 离体牙根面 脱矿 脱矿液 防龋元素 镧 铈 氟 |
Effects of demineral-resistant of Lanthanum,Cerium and Fluoride on human root surface:A comparative study in vitro] |
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| H Jin,W G Zhang,H Gao,A R Liu. Effects of demineral-resistant of Lanthanum,Cerium and Fluoride on human root surface:A comparative study in vitro][J]. Shanghai journal of stomatology, 1995, 4(3): 151-154 | |
| Authors: | H Jin W G Zhang H Gao A R Liu |
| Affiliation: | Department of Oral Pathology, School of Stomatology,Shanghai Second Medical University. Shanghai 200011,China. |
| Abstract: | An in vitro acid-resistant and remineralized study on human root surface with 500ppm lanthanum,Cerium and Fluoride accidulate buffer was carried out in a pH-cy-cling system.The results of quantitative chemical and energy spectrometry analyses showed that all these three elements had the demineral-resistant effects,although fluoride showed a better effect,Furthermore,the mechanisms of lanthanum,Cerium and Fluoride on demineral-resistant were discussed from the viewpoint of crystal physicochemistry. |
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