牙膏与单纯清水刷牙清除菌斑的效果比较

Comparison of plaque removal effects by tooth brushing with dentifrice and clear water

关键词:  刷牙  牙膏  Turesky等改良的Quigley-Hein菌斑指数  牙龈指数

Key words:  tooth brushing  dentifrice  Quigley-Hein plaque index modified by Turesky (TQHPI)  gingival index(GI)

摘要:

目的　观察清水与牙膏刷牙的效果，为选择清水刷牙提供理论依据。　方法　采用纳入和排除的评价标准对志愿者进行基线检查，将70名志愿者随机分为2组，实验组和对照组。实验前由一名指定的牙科医生检查两组志愿者的Turesky等改良的Quigley-Hein菌斑指数（Quigley-Hein plaque index modified by turesky，TQHPI）以及牙龈指数（gingival index，GI），并且对两组受试者进行Bass刷牙方法的指导教育。实验开始后，实验组采用统一指定牙膏刷牙，对照组采用清水刷牙，每日刷牙2次，每次3~5 min。实验周期为8周，8周后分别检查两组志愿者的TQHPI和GI。　结果　70例受试者中，实验前两组TQHPI以及GI的差异无显著性意义（P＞0.05)。实验后两组的TQHPI和GI较实验前均有明显降低（P＜0.05）。实验后两组的TQHPI和GI差异均无显著性意义（P＞0.05）。　结论　在采用正确有效的刷牙方法（Bass刷牙法）前提下，使用或不使用牙膏对菌斑清除效果的影响无明显差异。

Abstract:

Objective The study the effects of different tooth brushing methods, using dentifrice and clear water, on dental plaque removal by guiding participants to adopt the correct tooth brushing method (the Bass method). 　Methods By adopting the inclusion and exclusion criteria, we carried out a baseline examination for 70 volunteers and randomly divided them into two groups: the test group and the control group. Before the test began, an assigned dentist determined the TQHPI and the GI of the 70 participants and taught them to brush their teeth using the Bass method. Once the experiment started, the test group used specific dentifrice while the control group used clear water. Both groups brushed twice every day and each time for three to five minutes. The experiment lasted for 8 weeks. Afterwards, the TQHPI and the GI of the participants from two groups were checked. The experimental data were analyzed utilizing the SPSS 13.0 software package. 　Results There were no statistical significance （P＞0.05) for the TQHPI & GI between the two groups before the test. After eight weeks' [KG*4]trial, there were significant decrease in both TQHPI and GI （P＜0.05). However, when comparing the TQHPI and GI between the two groups after the trial, we found no obvious differences （P＞0.05). 　Conclusion Both tooth brushing methods, whether using dentifrice or only clear water, have the same effect on dental plaque removal when the correct tooth brushing (the Bass method) is adopted.