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首页> 外文期刊>American journal of dentistry >NaF rinse and dentifrice concentrations on enamel lesion demineralization
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NaF rinse and dentifrice concentrations on enamel lesion demineralization

机译：牙釉质病变脱矿质中的NaF冲洗液和洁齿剂浓度

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Purpose: To compare the in vitro effectiveness of two mouthrinses containing different concentrations of NaF to reduce enamel lesion demineralization. Methods: Nine extracted caries-free molars were selected and cleaned. The teeth were painted with acid resistant varnish, leaving a 1 mm x 4 mm window exposed. The teeth were cycled in a demineralizing solution at pH 4.5 for a total for 96 hours. The teeth were sectioned longitudinally through the unpainted window using a hard-tissue microtome, producing 96 sections. The sections were measured and photographed under polarized light microscopy using water and Thoulet's 1.47 as imbibing mediums. Six treatment groups were randomly created: (A) water control group, (B) 0.05% rinse group once a day (C) 0.02% rinse group twice a day, (D) 1,500 ppm paste group used twice a day, (E) combination group containing 0.05% rinse once a day, and 1,500 ppm paste twice a day, and (F) combination group containing 0.02% rinse and 1,500 ppm paste twice a day. A 10-day cycling protocol was carried out. All sections were then re-measured and re-photographed. A statistical analysis was performed to detect any differences between pre-and post-treatment groups. Results: There was a statistically significant difference in lesion depth between the water control group and the 1,500 ppm paste group as well as the 0.05% rinse in combination with 1,500 ppm paste group (P= 0.0184). No statistically significant differences were found between the control group and any other groups. A statistically significant difference was found in lesion area between the two rinse groups alone and the 1,500 ppm paste group, as well as the 0.05% rinse in combination with the 1,500 ppm paste group (P= 0.0002). An analysis of the results suggested that both rinse concentrations performed equally well in reducing lesion demineralization when used alone. However, only the 0.05% rinse used in combination with 1,500 ppm paste decreased lesion demineralization as compared to the water control group, and was equally as effective as the 1,500 ppm paste alone.
机译：目的：比较两种含有不同浓度NaF的漱口水对减少牙釉质病变脱矿质的体外功效。方法：选择并清洁九种提取的无龋磨牙。牙齿上涂有耐酸清漆，露出1毫米x 4毫米的窗口。将牙齿在pH 4.5的脱盐溶液中循环96小时。使用硬组织切片机通过未上漆的窗口将牙齿纵向切开，产生96个切片。使用水和Thoulet's 1.47作为吸收介质，在偏振光显微镜下对切片进行测量和拍照。随机创建六个治疗组：（A）水对照组，（B）每天一次0.05％冲洗组（C）每天两次0.02％冲洗组，（D）每天两次使用1,500 ppm糊剂组，（E） （F）组合组每天清洗两次，每次冲洗量为0.05％，糊剂含量为1,500 ppm，每天一次，每次两次，含量为1,500 ppm。进行了为期10天的骑车方案。然后重新测量所有部分并重新拍照。进行统计学分析以检测治疗前和治疗后组之间的任何差异。结果：水对照组和1,500 ppm糊剂组以及0.05％漂洗液和1,500 ppm糊剂组之间的病变深度差异有统计学意义（P = 0.0184）。在对照组和任何其他组之间没有发现统计学上的显着差异。在两个单独冲洗组和1,500 ppm糊剂组之间以及0.05％冲洗与1,500 ppm糊剂组联合使用时，发现病变面积有统计学上的显着差异（P = 0.0002）。对结果的分析表明，两种冲洗浓度在单独使用时，在减少病灶脱矿质方面表现相同。但是，与水对照组相比，仅将0.05％的漂洗液与1,500 ppm糊剂组合使用可减少病灶脱矿质，并且与单独使用1,500 ppm糊剂同样有效。

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