Maloney Venda P, Kemp James, Panagakos Fotinos, Mateo Luis R
Colgate-Palmolive Technology Center Piscataway, NJ, USA.
J Clin Dent. 2012;23 Spec No A:A21-5.
The purpose of this laboratory study was to evaluate extrinsic stain removal from teeth by a specially engineered sonic powered toothbrush with unique sensing and control technologies, using the Triple Clean and the Sensitive refill brush heads, in comparison to a manual flat-trim toothbrush.
Twelve (12) artificially stained bovine teeth were tested with each product. The percentage of stain removed by each product was calculated by taking the ratio of the amount of stain removed by brushing for 800 strokes to the total amount of stain removed by subsequent application of a dental prophylaxis. The stain was quantified by measuring the light reflected by the stained teeth with a spectrophotometer. Data were reported as L*, lightness of the stain, and as W*, a whiteness index comprising the lightness, hue, and chroma of reflected light. Statistical analyses were performed separately for the AL* and AW* scores. Comparisons of the toothbrushes with respect to baseline-adjusted deltaL* and deltaW* scores were performed using an analysis of covariance (ANCOVA). Post-ANCOVA pair-wise comparisons of the study toothbrushes were performed using Tukey's test for multiple comparisons. All statistical tests of hypotheses were two-sided, and employed a minimum level of significance of 0.05.
The percentage of stain removed by the sonic powered toothbrush, using either the Triple Clean brush head or the Sensitive brush head under laboratory test conditions, is superior (p < 0.05) to the percentage of stain removed by the manual flat-trim toothbrush when analyzed for both the deltaL* and deltaW* scores. The mean percentage of stain removed was 62.10 for the power toothbrush with the Triple Clean brush head, 49.01 for the power toothbrush with the Sensitive brush head, and 30.56 for the manual flat-trim toothbrush when calculated using deltaL* scores. The mean percentage of stain removed was 59.89 for the power toothbrush with the Triple Clean brush head, 46.83 for the power toothbrush with the Sensitive brush head, and 29.25 for the manual flat-trim toothbrush when calculated using deltaW* scores.
This new specially engineered sonic powered toothbrush with unique sensing and control technologies effectively removes extrinsic stains from the surface of teeth under laboratory test conditions with both the Triple Clean and the Sensitive brush heads. The effectiveness of stain removal with either brush head is significantly greater than the effectiveness of stain removal of a manual flat-trim toothbrush under these conditions.
本实验室研究旨在评估一款采用独特传感与控制技术的特殊设计声波电动牙刷，使用三重清洁刷头和敏感型替换刷头，与手动平刷式牙刷相比，去除牙齿外源性色斑的效果。
每种产品对12颗人工染色的牛牙进行测试。每种产品去除色斑的百分比通过计算刷牙800次去除的色斑量与后续进行牙齿预防治疗去除的总色斑量的比值得出。通过用分光光度计测量染色牙齿反射的光来量化色斑。数据报告为L*（色斑亮度）和W*（包含反射光亮度、色调和色度的白度指数）。对AL和AW分数分别进行统计分析。使用协方差分析（ANCOVA）对牙刷在基线调整后的deltaL和deltaW分数方面进行比较。使用Tukey多重比较检验对研究牙刷进行ANCOVA后的两两比较。所有假设的统计检验均为双侧检验，显著性水平最低为0.05。
在实验室测试条件下，无论是使用三重清洁刷头还是敏感型刷头，声波电动牙刷去除色斑的百分比在分析deltaL和deltaW分数时均优于手动平刷式牙刷（p < 0.05）。使用deltaL分数计算时，配备三重清洁刷头的电动牙刷去除色斑的平均百分比为62.10，配备敏感型刷头的电动牙刷为49.01，手动平刷式牙刷为30.56。使用deltaW分数计算时，配备三重清洁刷头的电动牙刷去除色斑的平均百分比为59.89，配备敏感型刷头的电动牙刷为46.83，手动平刷式牙刷为29.25。
这款采用独特传感与控制技术的新型特殊设计声波电动牙刷，在实验室测试条件下，使用三重清洁刷头和敏感型刷头均能有效去除牙齿表面的外源性色斑。在这些条件下，任一刷头去除色斑的效果均显著优于手动平刷式牙刷。
