Cronin Matthew J, Dembling Wayne Z, King Dennis W, Goodman Dennis, Cugini MaryAnn, Warren Paul R
New Institutional Services Co., Northfield, NJ 08225, USA.
Am J Dent. 2002 Dec;15(6):365-8.
To compare the safety and efficacy of two recently introduced modern power toothbrushes with different characteristics.
This was a single-blind, randomized, crossover study which compared the ability of two power toothbrushes to remove plaque during a 2-minute brushing period. The two brushes were the Braun Oral-B 3D Excel (D17), a rechargeable toothbrush with an oscillating/rotating/pulsating action and the Colgate Actibrush, a battery-operated device with an oscillating/rotating action. Seventy-four healthy subjects from a general population who met the inclusion/exclusion criteria used the two brushes on alternate days for a period of familiarization before returning to the test facility. At this visit, subjects with a whole mouth mean Proximal/Marginal Plaque Index of > or = 2.20 after 23-25 hours of no oral hygiene were randomly assigned to one of two treatment sequences, D17/Actibrush and Actibrush/D17, balanced for age and gender. Subjects brushed with their assigned toothbrush after which post-brushing plaque scores were recorded. After a 2-week washout phase subjects returned to the test facility and brushed with the alternate toothbrush as described. Data from the two visits were pooled, after which plaque removal efficacies were compared. Change from prebrushing treatment means were compared using ANOVA with models appropriate for the crossover design.
Both toothbrushes were found to be safe and both significantly reduced plaque levels (P < or = 0.0001), but the D17 was significantly more effective than the Actibrush for the whole mouth and for approximal sites. Plaque reductions for the D17 were 46.5%, 55.2% and 42.9% for whole mouth, marginal and approximal sites, respectively while reductions for the Actibrush for the whole mouth, marginal, and approximal sites, were 41.5%, 52.5% and 36.8% respectively. It is concluded that the Braun Oral-B D17 may offer advantages in terms of plaque removal over the battery-powered Actibrush, particularly at hard to reach approximal sites.
比较两种近期推出的具有不同特性的现代电动牙刷的安全性和有效性。
这是一项单盲、随机、交叉研究，比较了两种电动牙刷在2分钟刷牙期间清除牙菌斑的能力。这两种牙刷分别是博朗欧乐B 3D Excel（D17），一款具有振荡/旋转/脉动功能的可充电牙刷，以及高露洁动感牙刷，一款具有振荡/旋转功能的电池驱动装置。74名来自普通人群且符合纳入/排除标准的健康受试者在回到测试机构前，每隔一天使用这两种牙刷进行一段时间的熟悉。在此次就诊时，在23 - 25小时未进行口腔卫生清洁后全口平均邻面/边缘牙菌斑指数≥2.20的受试者被随机分配到两种治疗顺序之一，即D17/动感牙刷和动感牙刷/D17，按年龄和性别进行平衡。受试者使用分配给他们的牙刷刷牙，之后记录刷牙后牙菌斑评分。经过2周的洗脱期后，受试者回到测试机构并按照上述方法使用另一种牙刷刷牙。将两次就诊的数据合并，之后比较牙菌斑清除效果。使用适合交叉设计的模型通过方差分析比较刷牙前治疗均值的变化。
发现两种牙刷均安全，且均能显著降低牙菌斑水平（P≤0.0001），但D17在全口和邻面部位比动感牙刷显著更有效。D17在全口、边缘和邻面部位的牙菌斑减少率分别为46.5%、55.2%和42.9%，而动感牙刷在全口、边缘和邻面部位的减少率分别为41.5%、52.5%和36.8%。结论是，与电池驱动的动感牙刷相比，博朗欧乐B D17在清除牙菌斑方面可能具有优势，尤其是在难以触及的邻面部位。
