目的： 研究在5~6岁儿童中改良巴斯法、竖刷法、圆弧法龈上菌斑清除率的差异，并比较儿童对几种刷牙方法掌握程度的差异。方法 将3个幼儿园大班随机分为改良巴斯法、竖刷法、圆弧法组，分别进行刷牙方法宣教。宣教结束后第二天、第八天分2次测定菌斑清除率，宣教后第八天对受试者刷牙方法打分。结果 第一次检测改良巴斯法组、竖刷法组、圆弧法组菌斑清除率分别为81%、75%、82%，3组差异无统计学意义（P>0.05）；第二次检测分别为88%、68%、80%，改良巴斯法组与圆弧法组优于竖刷法组（P<0.05）；3种刷牙方法表现得分差异无统计学意义（P>0.05）。结论 改良巴斯刷牙法与圆弧法可作为向5~6岁儿童推荐的刷牙方法。%Objective The study aimed to explore supragingival plaque removal efficacy of modified Bass, vertical and Fones toothbrushing method among 5 to 6 year-old children, and to compare the learn ability of the three methods. Methods Three top classes in separate kindergartens were randomly assigned to modified Bass, vertical and Fones group. Propaganda of corresponding toothbrushing method was accomplished within two days for each group. Then plaque removal efficacy was examined the second and eighth day after propaganda. Individual toothbrushing performance was graded the eighth day after propaganda. Results During the first examination, plaque removal rate of modified Bass, vertical and Fones group was 81%, 75%, 82% respectively, demonstrating no statistical significance(P>0.05). During the second examination, removal rate was 88%, 68%, 80% respectively. According to statistical analysis, modified Bass and Fones group showed better plaque removal efficacy than vertical group(P<0.05), while no statistical significance was found between modified Bass and Fones group(P>0.05). Performance score of the three groups showed no statistical significance(P>0.05). Conclusion Our results implied modified Bass and Fones method could be recommended to 5 to 6 year-old children.
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