Isaacs R L, Beiswanger B B, Rosenfield S T, Crawford J L, Mau M S, Eckert G J, Warren P R
Oral Health Research Institute, Indianapolis, IN 46202-2876, USA.
Am J Dent. 1998 Feb;11(1):7-12.
To compare the efficacy on plaque, gingivitis and calculus of an oscillating/rotating power toothbrush (Braun Oral-B Ultra Plaque Remover-D9) and a high frequency toothbrush (sonicare).
A 6-week, randomized crossover study was carried out. A total of 62 healthy adult subjects completed the study and were assessed for plaque control, gingival condition and calculus control. At the end of the study, subjects completed a questionnaire which assessed their preferences for the two devices.
Both toothbrushes were found to be safe and effective, but a significantly lower gingival index (P = 0.002) and a lower calculus index (P = 0.022) was found in the D9 group. Assessment of patient preferences revealed that a significant majority of subjects in the study (65%) preferred the D9 to the high frequency toothbrush (27%). It is concluded that the D9 may offer greater potential for the maintenance of good gingival condition than the high frequency toothbrush, and that the greater preference for the D9 may be important with respect to long-term compliance. The implications of these findings are discussed.
比较一款振荡/旋转电动牙刷（博朗欧乐-B超洁亮型-D9）和一款高频牙刷（声波震动牙刷）在清除牙菌斑、牙龈炎和牙结石方面的效果。
开展了一项为期6周的随机交叉研究。共有62名健康成年受试者完成了该研究，并接受了牙菌斑控制、牙龈状况和牙结石控制方面的评估。研究结束时，受试者完成了一份问卷，评估他们对这两款牙刷的偏好。
发现两款牙刷均安全有效，但D9组的牙龈指数显著更低（P = 0.002），牙结石指数也更低（P = 0.022）。对患者偏好的评估显示，研究中的绝大多数受试者（65%）更喜欢D9，而不是高频牙刷（27%）。结论是，与高频牙刷相比，D9在维持良好牙龈状况方面可能具有更大潜力，并且对D9的更大偏好可能对长期依从性很重要。讨论了这些发现的意义。
