Yankell S L, Emling R C
University of Pennsylvania School of Dental Medicine, Philadelphia.
J Clin Dent. 1994;4(4):128-30.
A laboratory method for testing interproximal access efficacy (IAE) differentiates between different toothbrush designs and has been correlated with clinical plaque removal efficacy. The purpose of this study was to compare the bi-level trim Advanced Design Research (ADR) toothbrush with two flat-trim toothbrushes, Oral-B 40 (OB) and Colgate Plus Full Size (CPFS) toothbrushes, all in soft texture, for IAE using this laboratory method. Vertical and horizontal motions were used on simulated anterior and posterior tooth shapes at 250, 500, and 750 g brushing weights. Brushing times were 60 seconds. IAE is a measurement of the maximum width of the brushing stroke around the simulated teeth. Sixteen brushes of each design were tested for each parameter monitored. For both brushing motions and tooth shapes tested, at the 250 g brushing weight, ADR had significantly higher IAE (p < 0.01 by ANOVA) compared to OB and CPFS. The IAE values at 500 g for ADR were consistently higher than the other two brushes, while not always significantly different. At 750 g the three brushes approximated each other on IAE and were equally effective. When total IAE (means of all weights tested) were evaluated, the ADR was superior (p < 0.05 by the Student's t-test) to the OB and CPFS products. In this laboratory study, the Advanced Design Research toothbrush had consistently and significantly higher interproximal access efficacy compared to the Oral-B and Colgate Plus toothbrushes. These results were predictive of a recent clinical plaque removal study.
一种用于测试邻面清洁效果（IAE）的实验室方法能够区分不同的牙刷设计，并且已与临床牙菌斑清除效果相关联。本研究的目的是使用这种实验室方法，比较双层修剪的高级设计研究（ADR）牙刷与两款平面修剪的牙刷，即欧乐B 40（OB）和高露洁加大码全尺寸（CPFS）牙刷，所有牙刷质地均为软质，以评估IAE。在模拟的前牙和后牙形状上，分别以250克、500克和750克的刷牙重量进行垂直和水平运动。刷牙时间为60秒。IAE是指围绕模拟牙齿的刷牙行程的最大宽度测量值。对于所监测的每个参数，每种设计的16把牙刷都进行了测试。对于所测试的两种刷牙动作和牙齿形状，在250克刷牙重量下，与OB和CPFS相比，ADR的IAE显著更高（方差分析p < 0.01）。ADR在500克时的IAE值始终高于其他两款牙刷，尽管并非总是有显著差异。在750克时，三款牙刷在IAE方面相近且效果相当。当评估总IAE（所有测试重量的平均值）时，ADR优于OB和CPFS产品（学生t检验p < 0.05）。在这项实验室研究中，与欧乐B和高露洁加牙刷相比，高级设计研究牙刷始终具有显著更高的邻面清洁效果。这些结果与最近一项临床牙菌斑清除研究的结果相符。
