Borutta A
Department of Preventive Dentistry, Dental School of Erfurt, Friedrich-Schiller-University, Jena, Germany.
J Clin Dent. 1997;8(6):151-5.
A cross-over, single-blind clinical study was performed to compare a powered and a manual toothbrush for their ability to remove plaque from the teeth of pre-school children. Seventy-three randomly selected 4- to 6-year-old children from two kindergarten classes in Erfurt, Germany participated in the study. A new powered children's toothbrush (Rowenta) and a currently marketed manual children's toothbrush (Elmex) were used for an assessment period of two weeks each. Then the groups were crossed over to use the alternate toothbrush for another two weeks. Whole mouth, gingival margin and interproximal plaque area levels were determined using the Rustogi et al. plaque index. Statistical analysis of the data showed significantly effective (p < 0.05) plaque removal with both toothbrushes, immediately after toothbrushing and at one and two weeks, compared to the respective baseline scores. The statistical analysis also demonstrated that the powered toothbrush was significantly (p < 0.05) better on percent plaque reduction on all tooth areas compared to the manual toothbrush, except at two weeks with the interproximal assessment.
进行了一项交叉单盲临床研究，以比较电动牙刷和手动牙刷清除学龄前儿童牙齿上牙菌斑的能力。从德国爱尔福特的两个幼儿园班级中随机挑选了73名4至6岁的儿童参与该研究。一种新型电动儿童牙刷（Rowenta）和一种目前市面上销售的手动儿童牙刷（Elmex）分别使用两周进行评估。然后两组交叉使用另一种牙刷再持续两周。使用Rustogi等人的菌斑指数测定全口、牙龈边缘和邻面菌斑面积水平。数据的统计分析表明，与各自的基线分数相比，两种牙刷在刷牙后即刻、1周和2周时清除菌斑均有显著效果（p<0.05）。统计分析还表明，除了在2周时邻面评估外，电动牙刷在所有牙齿区域的菌斑减少百分比方面均显著优于手动牙刷（p<0.05）。
