Harnacke Daniela, Stein Kathrin, Stein Patrick, Margraf-Stiksrud Jutta, Deinzer Renate
Institute of Medical Psychology, Justus-Liebig-University, Giessen, Germany.
Faculty of Psychology, Philipps University, Marburg, Germany.
J Clin Periodontol. 2016 Jan;43(1):46-52. doi: 10.1111/jcpe.12489. Epub 2016 Feb 5.
This study aims to assess plaque scores after oral hygiene in an unselected sample of young German adults and to compare the effects of computer-based training of the Fones versus the modified Bass technique on these scores.
Seventy 18- to 19-year olds received computer-based training of the Fones technique, the modified Bass technique or basic instructions of oral hygiene alone (control group). The marginal plaque index (MPI; percentage of sections adjacent to the gingiva showing plaque) and BOP were assessed at baseline and after 6, 12 and 28 weeks. MPI was assessed immediately after participants had been asked to perform oral hygiene to the best of their abilities.
At baseline, MPI levels of 83.3% ± 12.5 (mean ± SD) were observed. After 12 weeks, groups differed significantly (p < 0.05) with respect to MPI: Fones group: 70.3% ± 14.7; Bass group: 77.91 ± 14.37; control group: 79.3% ± 9.2. No differences in BOP were found.
High plaque levels at gingival margins after oral hygiene were observed in an unselected sample of young German adults. After 12 weeks, plaque levels after oral hygiene were slightly reduced in the group who had received training of the Fones technique but effects trailed off afterwards. The study failed to prove effects of the training on signs of gingival inflammation.
本研究旨在评估德国年轻成年人非选择性样本在口腔卫生护理后的牙菌斑评分，并比较基于计算机的冯氏刷牙法与改良巴氏刷牙法训练对这些评分的影响。
70名18至19岁的年轻人接受了基于计算机的冯氏刷牙法训练、改良巴氏刷牙法训练或仅接受口腔卫生基本指导（对照组）。在基线以及6周、12周和28周后评估边缘牙菌斑指数（MPI；与牙龈相邻显示有牙菌斑的区域百分比）和探诊出血（BOP）情况。MPI在参与者被要求尽最大能力进行口腔卫生护理后立即进行评估。
在基线时，观察到MPI水平为83.3%±12.5（平均值±标准差）。12周后，各组在MPI方面存在显著差异（p<0.05）：冯氏组：70.3%±14.7；巴氏组：77.91±14.37；对照组：79.3%±9.2。未发现BOP有差异。
在德国年轻成年人的非选择性样本中，观察到口腔卫生护理后牙龈边缘牙菌斑水平较高。12周后，接受冯氏刷牙法训练的组口腔卫生护理后的牙菌斑水平略有降低，但之后效果逐渐减弱。该研究未能证明训练对牙龈炎症体征有影响。
