Department of Pediatric Dentistry, Faculty of Dentistry, Mahidol University, Bangkok, Thailand.
Int J Paediatr Dent. 2011 Jul;21(4):278-83. doi: 10.1111/j.1365-263X.2011.01120.x. Epub 2011 Feb 20.
The aim of this study was to compare the efficacy of the horizontal Scrub and modified Bass methods of toothbrushing in visually impaired students for 6 months.
Sixty visually impaired students, aged 10-12 years, were recruited to a randomized controlled clinical trial. At baseline, plaque index (PI) and gingival index (GI) were assessed, and then subjects were randomly divided into the horizontal Scrub and modified Bass groups. Subjects received verbal and tactile toothbrushing instruction and used their assigned methods twice daily. They were recalled at 1 and 6 months for clinical measurement and reinforce of instruction. Significance of PI and GI over time was compared using the paired t-test and between brushing group at each time point using the t-test.
Over the 6-month period, there were significant reduction from baseline for the mean PI and GI in both groups (P < 0.001). There were no significant differences between two methods at each time point (P > 0.05), however.
Both the horizontal Scrub and modified Bass methods can be effectively reduced plaque index and gingival index in visually impaired students. The efficacy of both methods was not different, however.
本研究旨在比较水平刷洗法和改良巴氏刷牙法对视力障碍学生的刷牙效果，为期 6 个月。
招募了 60 名年龄在 10-12 岁之间的视力障碍学生参加一项随机对照临床试验。在基线时，评估菌斑指数（PI）和牙龈指数（GI），然后将受试者随机分为水平刷洗组和改良巴氏组。受试者接受口头和触觉刷牙指导，并每天使用指定方法刷牙两次。在 1 个月和 6 个月时进行临床测量和指导强化。使用配对 t 检验比较 PI 和 GI 随时间的变化，使用 t 检验比较每个时间点两组之间的刷牙效果。
在 6 个月的时间里，两组的平均 PI 和 GI 均显著降低（P<0.001）。然而，在每个时间点，两种方法之间没有显著差异（P>0.05）。
水平刷洗法和改良巴氏刷牙法均可有效降低视力障碍学生的菌斑指数和牙龈指数。然而，两种方法的效果没有差异。
