Yankell S L, Shi X, Emling R C
University of Pennsylvania School of Dental Medicine, Philadelphia.
J Clin Dent. 1993;4 Suppl D:D1-4.
The Colgate Precision toothbrush and the Crest Complete toothbrush were compared using a laboratory device designed to simulate clinical toothbrushing motions and pressures, allowing measurement of interproximal access efficacy. The toothbrushing time was sixty seconds for each vertical or horizontal toothbrushing motion and for each of the three brushing weights tested (250, 500 or 750g). Interproximal access efficacy was determined by measuring the maximum width of the brushing stroke on pressure-sensitive paper placed around simulated anterior or posterior-shaped teeth. Twenty-four toothbrushes of each design were evaluated for each toothbrushing motion, tooth shape and toothbrushing weight for a total of 576 measurements. Using vertical toothbrushing motions the Colgate Precision toothbrush had significantly higher (p < 0.01) interproximal access efficacy mean values, compared to the Crest Complete toothbrush on both anterior and posterior tooth shapes and at each of the brushing weights tested. Using the horizontal toothbrushing motion on anterior-shaped teeth, the interproximal access efficacy for the Colgate Precision toothbrush was significantly greater (p < 0.05) than the Crest Complete toothbrush at 750g of brushing weight. With horizontal toothbrushing across posterior-shaped teeth, interproximal access efficacy values for the Colgate Precision toothbrush were significantly greater (p < 0.01) than the Crest Complete toothbrush at the 250, 500 and 750g brushing weights tested.
使用一种旨在模拟临床刷牙动作和压力的实验室设备对高露洁精准牙刷和佳洁士全效牙刷进行了比较，该设备可测量牙间隙清洁效果。每次垂直或水平刷牙动作以及测试的三种刷牙力度（250克、500克或750克）中的每一种的刷牙时间均为60秒。通过测量放置在模拟前牙或后牙形状牙齿周围的压敏纸上刷牙行程的最大宽度来确定牙间隙清洁效果。对于每种刷牙动作、牙齿形状和刷牙力度，对每种设计的24支牙刷进行评估，总共进行576次测量。在垂直刷牙动作中，与佳洁士全效牙刷相比，高露洁精准牙刷在前后牙形状以及测试的每种刷牙力度下，牙间隙清洁效果的平均值均显著更高（p < 0.01）。在前牙形状上使用水平刷牙动作时，在750克刷牙力度下高露洁精准牙刷的牙间隙清洁效果显著优于佳洁士全效牙刷（p < 0.05）。在横跨后牙形状进行水平刷牙时，在测试的250克、500克和750克刷牙力度下，高露洁精准牙刷的牙间隙清洁效果值均显著高于佳洁士全效牙刷（p < 0.01）。
