Procter & Gamble Service GmbH, Kronberg, Germany.
The Procter & Gamble Company, Mason, OH, USA.
Int Dent J. 2020 Apr;70 Suppl 1(Suppl 1):S22-S27. doi: 10.1111/idj.12568.
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.
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.
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.
The novel O-R toothbrush with micro-vibrations produced significantly greater plaque reductions compared to the manual toothbrush.
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。
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。
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。
与手动牙刷相比，新型 O-R 带微振动牙刷可显著减少菌斑。
