Sharma N C, Qaqish J G, Galustians H J, Goyal C R, Cugini M A, Thompson M C, Warren P R
BioSci Research Canada Ltd., 6245 Mississauga Road, Mississauga, Ontario L5N 1A4, Canada.
J Dent. 2005 Jun;33 Suppl 1:17-21.
To compare the safety and plaque removal efficacy of two electric toothbrushes, one a rechargeable oscillating/pulsating toothbrush with a small round brush head (Oral-B ProfessionalCare 7000; PC 7000), the other a battery-operated toothbrush with a dual moving brush head (Crest SpinBrush Pro; SBP).
The study had a randomised, examiner-blind, two-arm crossover design. All subjects received an oral prophylaxis and used both toothbrushes on alternating days for a two-week practice period. After abstaining from all oral hygiene procedures for 23-25 hours, subjects received an oral tissue examination and those with pre-brushing whole mouth mean plaque scores > or = 0.60 measured by the Rustogi et al. Modified Navy Plaque Index were randomly assigned to treatment sequence. Subjects brushed with their assigned toothbrush for 2 minutes using a commercially available dentifrice. Oral tissues were then re-examined and post-brushing plaque scores recorded. After a brief washout period, the above procedures were repeated with the alternate toothbrush. One examiner, blinded to the treatment sequence, performed all clinical measurements.
A total of 70 subjects (24 males and 46 females) were enrolled and completed the study. Each toothbrush was found to be safe and significantly reduced plaque levels after a single brushing. The PC 7000 was significantly more effective in plaque removal than the SBP at all tooth areas, reducing whole mouth plaque by 61% versus 58% and plaque from approximal surfaces by 69% versus 65%, respectively.
The action of the oscillating/pulsating toothbrush with a small round brush head, Oral-B ProfessionalCare 7000, is more effective in plaque removal than the battery-operated Crest SpinBrush Pro toothbrush with a larger dual moving brush head.
比较两种电动牙刷的安全性和去除牙菌斑功效，一种是配有小圆形刷头的可充电振荡/脉动牙刷（欧乐-B专业护理7000；PC 7000），另一种是配有双活动刷头的电池驱动牙刷（佳洁士旋转刷头专业版；SBP）。
本研究采用随机、检查者盲法、双臂交叉设计。所有受试者均接受了口腔预防治疗，并在两周的练习期内隔天使用两种牙刷。在停止所有口腔卫生程序23 - 25小时后，对受试者进行口腔组织检查，那些刷牙前全口平均牙菌斑评分≥0.60（采用Rustogi等人改良海军牙菌斑指数测量）的受试者被随机分配治疗顺序。受试者使用市售牙膏用指定的牙刷刷牙2分钟。然后再次检查口腔组织并记录刷牙后的牙菌斑评分。经过短暂的洗脱期后，用另一种牙刷重复上述程序。一名对治疗顺序不知情的检查者进行所有临床测量。
共有70名受试者（24名男性和46名女性）入组并完成研究。发现每种牙刷都安全，且单次刷牙后能显著降低牙菌斑水平。在所有牙齿区域，PC 7000去除牙菌斑的效果均显著优于SBP，全口牙菌斑减少率分别为61%和58%，邻面牙菌斑减少率分别为69%和65%。
配有小圆形刷头的振荡/脉动牙刷欧乐-B专业护理7000在去除牙菌斑方面比配有较大双活动刷头的电池驱动佳洁士旋转刷头专业版牙刷更有效。
