Schemehorn B R, Keil J C
Indiana University School of Dentistry, Oral Health Research Institute, Indianapolis, USA.
J Clin Dent. 1995;6(4):194-7.
This laboratory investigation compared the Sonicare toothbrush, the Braun Oral-B Plaque Remover and a manual brush, in terms of removal of stained pellicle from the surface of enamel specimens. Enamel specimens were stained over a period of 4 days to produce a stained pellicle film. Staining was assessed photometrically before and after brushing 16 specimens per group for 4.5 minutes with the three test toothbrushes and dentifrice slurry prepared from Crest toothpaste. The positive control consisted of the ADA reference abrasive and a manual toothbrush. Results were expressed as a cleaning ratio (CR), with higher values representing more efficient stain removal. Analysis of results revealed that removal of stain from the enamel surfaces was similar in the Braun Oral-B Plaque Remover group (CR 94) and the reference standard group (CR 100). There was no statistically significant difference between these 2 groups. In contrast, stain removal in the Sonicare toothbrush group and the manual toothbrush group was significantly less effective (p<0.01), with a mean CR of 66 and 76, respectively. There was no statistical difference between the cleaning ratio scores for these 2 groups. It is concluded that extrinsic stain removal with the Sonicare toothbrush is similar to that achieved with a manual brush, but that stain removal with the Braun Oral-B Plaque Remover is significantly more effective.
本实验室研究比较了声波震动牙刷、博朗欧乐-B牙菌斑清除器和手动牙刷在去除牙釉质标本表面染色牙菌斑方面的效果。牙釉质标本经过4天的染色以形成染色牙菌斑膜。在使用三种测试牙刷和佳洁士牙膏制备的牙膏糊对每组16个标本进行4.5分钟刷牙前后，通过光度法评估染色情况。阳性对照由美国牙科协会（ADA）参考磨料和手动牙刷组成。结果以清洁率（CR）表示，数值越高表明污渍清除效率越高。结果分析显示，博朗欧乐-B牙菌斑清除器组（CR 94）和参考标准组（CR 100）从牙釉质表面清除污渍的效果相似。这两组之间没有统计学上的显著差异。相比之下，声波震动牙刷组和手动牙刷组的污渍清除效果明显较差（p<0.01），平均清洁率分别为66和76。这两组的清洁率得分没有统计学差异。结论是，声波震动牙刷去除外源性污渍的效果与手动牙刷相似，但博朗欧乐-B牙菌斑清除器去除污渍的效果明显更好。
