ACID REACTIVITY OF CARBONATED APATITES WITH STRONTIUM AND FLUORIDE SUBSTITUTIONS
ACID REACTIVITY OF CARBONATED APATITES WITH STRONTIUM AND FLUORIDE SUBSTITUTIONS
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DOI：
10.1177/00220345830620100801
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发表时间：
1983-01-01
影响因子：
7.6
通讯作者：
OLDERSHAW, MD
中科院分区：
文献类型：
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作者：
FEATHERSTONE, JDB;SHIELDS, CP;OLDERSHAW, MD
碳酸化磷灰石，含有3.0或6.5%CO_3的存在下，在不同浓度的Na，Sr和/或F-沉淀。几乎所有可用的S和F-被纳入晶体中，而只有一部分的碳酸盐和Na本采取了。当合并在一起，Sr和F-提高碳酸磷灰石的结晶度和显着降低其酸反应性。这种现象可以部分解释观察到的龋齿减少的人口，其饮用水含有最佳水平的Sr在5-10毫克/升和F-在1-2毫克/升。
Carbonated apatites containing .apprx. 3.0 or 6.5% CO3 were precipitated in the presence of Na, Sr and/or F- at various concentrations. Almost all the available S and F- was incorporated into the crystals, whereas only a portion of the carbonate and Na present was taken up. When incorporated together, Sr and F- improved the crystallinity of carbonated apatites and markedly reduced their acid reactivity. This phenomenon may partially explain the observed reduction in caries for populations whose drinking water contains optimum levels of Sr at 5-10 mg/l and F- at 1-2 mg/l.