ALTERNATING DEMINERALIZATION AND REMINERALIZATION OF ARTIFICIAL ENAMEL LESIONS
ALTERNATING DEMINERALIZATION AND REMINERALIZATION OF ARTIFICIAL ENAMEL LESIONS
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DOI：
10.1159/000260599
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发表时间：
1982-01-01
期刊：
影响因子：
4.2
通讯作者：
DUIJSTERS, PPE
中科院分区：
文献类型：
--
作者：
TENCATE, JM;DUIJSTERS, PPE
通过pH循环研究人工牙釉质病变中矿物质的丢失和摄取：对样品进行一系列的去矿化和再矿化溶液处理。每天去矿化和再矿化的比率以及再矿化液中氟的存在在不同的实验组之间是不同的。测定钙、磷、氟的摄取和丢失情况。用硬度计和显微照相对损伤进行了研究。结果表明，连续再矿化和pH循环再矿化的矿化机制不同(相对于钙磷比)。在氟化物存在的情况下，一段时间后，就会形成“滞留”的龋损，很难进一步脱矿或再矿化。这与饮用水氟化地区再次矿化的临床结果一致。
Mineral loss and uptake in artificial enamel lesions was investigated by pH cycling: samples were subjected to a sequence of de- and remineralizing solutions. The ratio between de- and remineralization per day and the presence of fluoride in the remineralizing solution were varied among different experimental groups. Calcium, phosphate and fluoride uptake and loss were measured. The lesions were also studied with a hardness tester and micro radiography. The results show a difference in remineralization mechanism between continuously remineralized and pH-cycled samples (with respect to Ca/P ratios). With fluoride present, after some time, ‘arrested’ carious lesions are formed, which can hardly be further demineralized or remineralized. This is in agreement with clinical findings of remineralization in areas with fluoridation of the drinking water.