| 引用本文: | 董志红， 宋慧瑾， 朱晓东， 周长春， 聂志萍.氟基硅酸钙对碳酸饮料酸蚀后的牙釉质修复作用[J].中国表面工程,2016,29(1):125~129 |
| DONG ZhiHong, SONG Huijin, ZHU Xiaodong, ZHOU ChangChun, NIE ZhiPing.Repair of Fluoride-base Calcium Silicate on Carbonated Beverage Etched Enamel[J].China Surface Engineering,2016,29(1):125~129 |
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| 摘要: |
| 针对碳酸饮料对牙釉质的软化及脱矿，选用氟基硅酸钙（FCaSiO3）生物活性材料进行修复。以可乐、苹果醋、冰红茶3种常规饮料对正常的牙釉质进行浸泡处理后，在模拟人工唾液的环境中浸泡30 min，测试其硬度值的恢复状况。对酸蚀较严重，口腔唾液难以自修复的牙釉质，使用FCaSiO3进行修复，通过显微硬度仪、扫描电子显微镜(SEM)、X射线衍射(XRD)和X射线能谱(EDS)进行测试分析。结果表明，碳酸饮料在不同时间内均对牙釉质有一定的损害，随时间的延长，饮料对牙齿的脱矿越显著，其中可口可乐表现为最严重，浸泡30 min后钙磷摩尔比降到1.32。在模拟口腔唾液中浸泡30 min后，硬度值有一定的提高；酸蚀严重的可口可乐样品，通过模拟刷牙的形式使用FCaSiO3进行修复，在口腔唾液环境中仿生矿化3 d后，表面形成一层矿化层，成分和牙釉质基体接近，钙磷比恢复到1.58，接近于牙釉质，且表面硬度值优于酸蚀的牙釉质，补充了矿物质的流失。FCaSiO3生物活性材料，可作为一种修复牙齿脱矿的试剂，保护牙齿及预防龋齿发生。 |
| 关键词: 牙釉质 酸蚀 氟基硅酸钙 再矿化 |
| DOI：10.11933/j.issn.1007-9289.2016.01.018 |
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| Repair of Fluoride-base Calcium Silicate on Carbonated Beverage Etched Enamel |
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DONG ZhiHong, SONG Huijin, ZHU Xiaodong, ZHOU ChangChun, NIE ZhiPing1,2
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1. School of Mechanical Engineering, Chengdu University, Chengdu 610106;2. National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064
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| Abstract: |
| To study the carbonated beverage soften and etched enamel and remineralization, fluoridebased calcium silicate(FCaSiO3) was used to repair etched enamel, enamel samples were treated with three types of normal carbonated beverage (CocaCola, apple juice, and black tea) for different time, then soaked in simulated oral fluid (SOF) for 30 min, and the microhardness was measured for these two group samples treated before and after by a micromhardness tester. Cocacola treated samples for 30 min showed the lowest hardness value, and Ca/P molar ratio dropped to 1.32. Because it was difficult to selfrepair in SOF for the serious etched enamel, FCaSiO3 was used to remineralization etched enamel by simulating to brush the teeth, and samples were soaked in SOF for 3 days to mimic mineralization and characterized by micromhardness tester, XRD, SEM, EDS. The results show that each carbonated beverage is harmful to enamel, the longer soaked in drinking, the more serious demineralization, and Cocacola is the worst. Although in SOF for 30 min, treated enamel shows higher microhardness value compared with etched samples, their hardness cannot reach the original enamel′s. Samples with Cocacola etched 30 min are treated using FCaSiO3 and soaked in SOF for 3 days, a mineralized layer formed and its structure is similar to apatite compared with enamel, microhardness value of the mineralized layer is close to enamel’s, and Ca/P molar ratio reaches 1.58. FCaSiO3 can be remineralization enamel and cariogenic prevention as a kind of agent. |
| Key words: enamel acidic etched fluoride base calcium silicate remineralization |
