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首页> 外文期刊>The Journal of the American Dental Association >The efficacy of a highly concentrated fluoride dentifrice on bovine enamel subjected to erosion and abrasion.
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The efficacy of a highly concentrated fluoride dentifrice on bovine enamel subjected to erosion and abrasion.

机译：高浓度氟化物洁齿剂对牛牙釉质的侵蚀和磨损作用。

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BACKGROUND: Researchers have proposed the use of fluoride for the prevention of enamel wear; however, only limited information is available about the impact of fluoridated dentifrices. Because tooth wear is a well-recognized dental problem, the authors conducted an in situ, ex vivo study to assess the efficacy of a highly concentrated fluoride dentifrice on bovine enamel subjected to erosion and abrasion. METHODS: The authors conducted a double-blind, crossover in situ study consisting of three phases (seven days each). In each phase, the authors tested one of the dentifrices (5,000 parts per million fluoride [F]; 1,100 ppm F; no F). They performed erosive challenges with the use of cola drink (60 seconds, four times per day) and abrasive challenges via toothbrushing (30 seconds, four times per day). The authors determined the enamel loss via profilometry. RESULTS: The authors tested the data by using two-way analysis of variance (P < .05). For the erosion-plus-abrasion condition, the study results showed that enamel wear was significantly higher than that with erosion alone. The findings showed no significant differences between the dentifrices regarding enamel wear. CONCLUSIONS: Within the in situ, ex vivo conditions of this study, the authors concluded that the highly concentrated fluoride dentifrice did not have a protective effect on enamel against erosion and erosion plus toothbrushing abrasion. CLINICAL IMPLICATIONS: Patients at risk of developing enamel erosion should benefit from preventive measures other than fluoride dentifrice, because even a highly concentrated fluoride dentifrice does not appear to prevent enamel erosion.
机译：背景：研究人员提出了使用氟化物来防止牙釉质磨损的方法。但是，关于氟化洁牙剂的影响的信息很少。由于牙齿磨损是公认的牙科问题，因此作者进行了一项原位离体研究，以评估高浓度氟化物洁齿剂对遭受腐蚀和磨损的牛牙釉质的功效。方法：作者进行了一项双盲，交叉原位研究，该研究包括三个阶段（每个阶段为7天）。在每个阶段，作者测试了一种洁齿剂（每百万氟化物5,000份[F]; 1100 ppm F;无F）。他们使用可乐饮料（60秒，每天四次）进行腐蚀性挑战，并通过牙刷（30秒，每天四次）进行腐蚀性挑战。作者通过轮廓测定法确定了釉质的损失。结果：作者通过使用方差的双向分析来检验数据（P <.05）。对于侵蚀加磨损的情况，研究结果表明，搪瓷的磨损明显高于单独腐蚀的情况。研究结果表明，牙釉质磨损的牙膏之间没有显着差异。结论：在这项研究的原位，离体条件下，作者得出结论，高浓度的氟化物洁牙剂对牙釉质没有侵蚀，侵蚀和刷牙磨损的保护作用。临床意义：患牙釉质侵蚀风险的患者应从氟化物洁牙剂之外的预防措施中受益，因为即使高浓度的氟化物洁牙剂也似乎无法预防牙釉质侵蚀。

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