Haun Jan, Williams Karen, Friesen Lynn, Ferrante Anita, Walters Patricia A, Bartizek Robert D, Biesbrock Aaron R
University of Missouri at Kansas City School of Dentistry, Kansas City, KS, USA.
J Clin Dent. 2002;13(5):191-7.
The current study was designed to assess the plaque removal efficacy of a novel experimental powered toothbrush (Crest SpinBrush Pro) compared to two leading manual toothbrushes, the Oral-B CrossAction and the Colgate Navigator. In addition, this paper reports the results of two additional studies examining the relative plaque removal efficacy of the two control manual toothbrushes and a number of other manual toothbrushes. The comparative study was a randomized, controlled, examiner-blind, nine-period crossover design, conducted among 127 adult subjects over a two-month period, that examined plaque removal with a new battery-powered toothbrush and two advanced-design manual toothbrushes. During the course of this study, subjects brushed three times with the experimental powered toothbrush and three times with each control manual toothbrush. Study participation was on a voluntary basis following written informed consent of the subjects. Plaque was scored before and after brushing using the Turesky, et al. Modification of the Quigley-Hein Index. Average baseline plaque scores were 2.68 to 2.69 for the three treatment groups. The experimental toothbrush delivered an adjusted (via analysis of covariance) mean difference between baseline and post-brushing plaque scores (i.e., a plaque removal score) of 0.69, while the control toothbrushes delivered adjusted mean differences of 0.46 (Colgate Navigator) and 0.54 (Oral-B CrossAction). All group differences were statistically significant (p < 0.001). The experimental powered toothbrush group had, on average, 49% and 28% greater plaque removal scores than the Colgate Navigator and Oral-B CrossAction groups, respectively. In addition, the Oral-B CrossAction group had, on average, a 16% greater plaque removal score than the Colgate Navigator group. This result was also statistically significant (p < 0.001). Results on buccal and lingual surfaces also demonstrated statistically significantly (p < 0.001) greater plaque removal for the experimental battery-powered toothbrush relative to the control manual toothbrushes.
本研究旨在评估一款新型实验电动牙刷（佳洁士旋转刷头专业版）与两款领先的手动牙刷——欧乐-B交叉动作牙刷和高露洁导航者牙刷相比的牙菌斑清除效果。此外，本文还报告了另外两项研究的结果，这两项研究考察了两款对照手动牙刷与其他一些手动牙刷的相对牙菌斑清除效果。这项对比研究采用随机、对照、检查者盲法、九阶段交叉设计，在127名成年受试者中进行，为期两个月，研究了一款新型电池供电牙刷和两款先进设计手动牙刷的牙菌斑清除情况。在本研究过程中，受试者使用实验电动牙刷刷牙三次，使用每款对照手动牙刷刷牙三次。受试者在书面知情同意后自愿参与研究。使用图尔斯基等人对奎格利-海因指数的修改版在刷牙前后对牙菌斑进行评分。三个治疗组的平均基线牙菌斑评分在2.68至2.69之间。实验牙刷在基线和刷牙后牙菌斑评分之间的调整后（通过协方差分析）平均差异（即牙菌斑清除评分）为0.69，而对照牙刷的调整后平均差异分别为0.46（高露洁导航者）和0.54（欧乐-B交叉动作）。所有组间差异均具有统计学意义（p < 0.001）。实验电动牙刷组的牙菌斑清除评分平均分别比高露洁导航者组和欧乐-B交叉动作组高49%和28%。此外，欧乐-B交叉动作组的牙菌斑清除评分平均比高露洁导航者组高16%。这一结果也具有统计学意义（p < 0.001）。颊面和舌面的结果也表明，与对照手动牙刷相比，实验电池供电牙刷的牙菌斑清除在统计学上有显著差异（p < 0.001）。
