一项评估具有微振功能的往复旋转电动牙刷清除牙菌斑效果的随机对照试验。
Randomized controlled trial assessing plaque removal of an oscillating-rotating electric toothbrush with micro-vibrations.
机构信息
Procter & Gamble Service GmbH, Kronberg, Germany.
The Procter & Gamble Company, Mason, OH, USA.
出版信息
Int Dent J. 2020 Apr;70 Suppl 1(Suppl 1):S22-S27. doi: 10.1111/idj.12568.
OBJECTIVE
The objective was to assess plaque removal potential of a newly designed oscillating-rotating (O-R) electric rechargeable toothbrush with micro-vibrations compared to a manual toothbrush.
METHODS
This was a randomized single-brushing, two-treatment, examiner-blind, replicate-use, four-period crossover design study, conducted with three cohorts of nine subjects each, with all subjects using each toothbrush twice. Test toothbrushes included a new O-R rechargeable electric toothbrush with micro-vibrations (Oral-B iO prototype) and a manual American Dental Association (ADA) reference toothbrush. On each of the four study visits, subjects refrained from oral hygiene for 12 hours prior. At each visit, subjects received a pre-brushing plaque examination, brushed with their assigned toothbrush and a marketed fluoride dentifrice and then received a post-brushing plaque examination. Plaque was assessed using the expanded Turesky Modified Quigley-Hein Plaque Index. Treatment comparison analyses were two-sided and carried out at the 5% significance level.
RESULTS
All 27 randomized subjects (mean age = 42.0 years) completed the trial. Both brushes produced significant plaque reductions versus baseline (P < 0.001). The O-R electric brush provided statistically significantly greater plaque reductions in all regions compared to the regular manual toothbrush, with a between-treatment difference of 0.929 for whole mouth plaque, 0.965 for proximal plaque, 1.029 for lingual plaque and 0.815 for facial plaque (P < 0.001 for all comparisons). Additionally, use of the novel O-R brush yielded greater brushing evenness/consistency when comparing the facial and lingual mean plaque removal differences relative to manual brushing (P = 0.001). Both brushes were well-tolerated.
CONCLUSION
The novel O-R toothbrush with micro-vibrations produced significantly greater plaque reductions compared to the manual toothbrush.
目的
评估与手动牙刷相比，具有微振动的新型振荡旋转（O-R）电动可充电牙刷的菌斑去除潜力。
方法
这是一项随机单刷洗、两处理、 examiner 盲、重复使用、四周期交叉设计研究，共进行了三批，每批 9 名受试者，所有受试者均使用每把牙刷两次。测试牙刷包括一种新型 O-R 可充电电动牙刷（Oral-B iO 原型）和手动美国牙科协会（ADA）参考牙刷。在每次四项研究访问中，受试者在刷牙前 12 小时不进行口腔卫生。在每次访问中，受试者接受预刷牙菌斑检查，用指定的牙刷和市售含氟牙膏刷牙，然后接受刷牙后菌斑检查。菌斑采用扩展的 Turesky 改良 Quigley-Hein 菌斑指数进行评估。治疗比较分析为双侧，在 5%的显著性水平进行。
结果
所有 27 名随机受试者（平均年龄=42.0 岁）均完成了试验。两种牙刷均与基线相比显著减少菌斑（P<0.001）。与常规手动牙刷相比，O-R 电动牙刷在所有区域均提供了统计学上显著更大的菌斑减少，全口菌斑差异为 0.929，近中菌斑差异为 0.965，舌侧菌斑差异为 1.029，颊侧菌斑差异为 0.815（所有比较均 P<0.001）。此外，与手动刷牙相比，新型 O-R 牙刷在比较颊侧和舌侧平均菌斑去除差异时，产生了更大的刷牙均匀性/一致性（P=0.001）。两种牙刷均具有良好的耐受性。
结论
与手动牙刷相比，新型 O-R 带微振动牙刷可显著减少菌斑。
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