Van der Weijden G A, Timmerman M F, Piscaer M, IJzerman Y, Van der Velden U
Department of Periodontology, Academic Center for Dentistry Amsterdam, ACTA, Amsterdam, The Netherlands.
J Clin Periodontol. 2004 Oct;31(10):903-7. doi: 10.1111/j.1600-051X.2004.00582.x.
This parallel examiner blind study was designed to compare the results of professional brushing with an electric toothbrush (ETB, Braun Oral-B 3D Excel) to a professional polish session.
For this study, 90 non-dental students were selected. All received a single oral prophylaxis where plaque and calculus were removed and the teeth were polished so that all subjects started with equally clean teeth. Approximately 4 weeks later the subjects received a new appointment prior to which they were asked to abstain from oral hygiene procedures for at least 48 h. At baseline the examiner (M.P.) evaluated the amount of dental plaque (Sillness & Löe) at six surfaces of each tooth. Subsequently, in the absence of this examiner, the subject's teeth were brushed or polished by a dental hygienist (Y.I.J.). Three groups were formed; the subjects in Group 1 received 10 min of polishing with a rubber cup/point using dentifrice as abrasive paste, in Group 2 subjects were brushed for 2 min with an ETB and dentifrice by the hygienist and in Group 3 brushing for 10 min was performed with an ETB and dentifrice. Care was taken to call upon the examiner always >10 min after her leaving the room so that she was unaware of the treatment. Electric brushing was carried out carefully following the contour of the teeth and turning the brush head separately in the direction of the mesial and distal aspect of each tooth in each approximal space. After finishing with the brushing/polishing, the examiner re-evaluated the amount of remaining dental plaque.
The baseline plaque levels in Groups 1-3 were 1.54, 1.62 and 1.55, respectively. The reduction in plaque scores in Group 1 was 94.8% (+/-4.0), for Group 2 94.2% (+/-4.7) and for Group 3 99.4% (+/-0.5). The results in Group 3 were significantly better than in Groups 1 and 2. Explorative analysis revealed that these differences were due to a higher plaque removal from the approximal surfaces and molars.
Two minutes of professional brushing with an ETB was as effective as 10 min of professional polishing. Whereas 10 min with an ETB was even more effective.
本平行双盲研究旨在比较使用电动牙刷（ETB，博朗欧乐B 3D Excel）进行专业刷牙与专业抛光的效果。
本研究选取了90名非牙科专业学生。所有受试者均接受了一次口腔预防治疗，去除了牙菌斑和牙结石，并对牙齿进行了抛光，使所有受试者的牙齿初始状态同样清洁。大约4周后，受试者再次预约就诊，在此之前要求他们至少48小时不进行口腔卫生护理。在基线时，检查者（M.P.）评估了每颗牙齿六个表面的牙菌斑量（Sillness & Löe）。随后，在检查者不在场的情况下，由一名口腔保健员（Y.I.J.）为受试者刷牙或抛光。分为三组；第1组受试者使用含摩擦剂的牙膏，用橡胶杯/打磨头进行10分钟抛光，第2组受试者由保健员用电动牙刷和牙膏刷牙2分钟，第3组受试者用电动牙刷和牙膏刷牙10分钟。在检查者离开房间超过10分钟后才请其回来，以便她不知道治疗情况。电动刷牙时要小心顺着牙齿轮廓进行，并在每个邻间隙中，将刷头分别向每颗牙齿的近中面和远中面方向转动。刷牙/抛光结束后，检查者重新评估剩余牙菌斑量。
第1 - 3组的基线菌斑水平分别为1.54、1.62和1.55。第1组菌斑评分降低了94.8%（±4.0），第2组降低了94.2%（±4.7），第3组降低了99.4%（±0.5）。第3组的结果明显优于第1组和第2组。探索性分析表明，这些差异是由于邻面和磨牙表面的牙菌斑清除率更高。
使用电动牙刷进行两分钟的专业刷牙与10分钟的专业抛光效果相同。而使用电动牙刷10分钟的效果更佳。
