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首页> 外文期刊>International journal of dental hygiene >Safety and efficacy of two manual toothbrushes.
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Safety and efficacy of two manual toothbrushes.

机译：两把手动牙刷的安全性和有效性。

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OBJECTIVE: The purpose of this study was to test the efficacy and safety of a newly designed multi-level manual toothbrush (Profit-Haije-Brush) compared with a control flat-trimmed manual reference toothbrush from the American Dental Association (ADA). MATERIAL AND METHODS: For this study, 36 healthy subjects without previous experience in the use of the Profit-Haije-Brush (PHB) were selected. Subjects were given a period of 2 weeks to become familiar with both types of brushes and were instructed to use them on alternate days for 2 min twice daily. Prior to their visit, subjects refrained from all oral hygiene procedures for 48 h. Prebrushing plaque and gingival abrasion scores were assessed. Subsequently, two randomly chosen contra-lateral quadrants were brushed with one of both brushes and the other two quadrants with the alternate brush. Subjects were supervised during their 2-min brushing exercise. After brushing, plaque and gingival abrasion were re-assessed. A questionnaire was filled out to investigate the subjects' attitudes towards both brushes. RESULTS: The overall mean prebrushing PI was 2.47 for the PHB and 2.44 for the ADA. The reduction in PI was 1.32 and 1.23 respectively (P < 0.05). With regard to gingival abrasion the overall mean prebrushing scores were 4.57 (PHB) and 5.34 (ADA). Post-brushing scores were 13.49 and 13.77 for the PHB and ADA respectively. CONCLUSION: Statistically, the multi-level PHB was significantly more efficacious than the flat-trimmed ADA. However, the difference is clinically considered small and the amount of remaining plaque was not significantly different between brushes. No greater potential to cause gingival abrasion to the oral tissues was observed.
机译：目的：本研究的目的是测试新型设计的多级手动牙刷（Profit-Haije-Brush）与美国牙科协会（ADA）的对照平剪式手动参考牙刷的功效和安全性。材料与方法：本研究选择了36名没有使用Profit-Haije-Brush（PHB）经验的健康受试者。给受试者2周的时间以熟悉两种类型的刷子，并指示他们隔天使用两次，每天两次，每次2分钟。在拜访之前，受试者应避免进行48小时的所有口腔卫生程序。评估了刷前牙菌斑和牙龈磨损分数。随后，用两个刷子之一刷两个随机选择的对侧象限，并用备用刷子刷另外两个象限。在2分钟的刷牙练习中对受试者进行监督。刷牙后，重新评估牙菌斑和牙龈磨损。填写了调查表以调查受试者对两种刷子的态度。结果：PHB的总体平均刷前PI为2.47，ADA的为2.44。 PI的降低分别为1.32和1.23（P <0.05）。关于牙龈擦伤，总体平均刷前评分分别为4.57（PHB）和5.34（ADA）。 PHB和ADA的刷后评分分别为13.49和13.77。结论：从统计学上讲，多级PHB比平整ADA更有效。但是，临床上认为差异很小，并且刷子之间的残留菌斑量没有显着差异。观察到没有更大的可能性导致牙龈磨损到口腔组织。

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