刷牙时间对可摘局部义齿基牙菌斑菌丛的影响

The Effect of Tooth-Brushing on Abutment Teeth Plaque and Flora in Removable Partial Denture Wearers

为了探讨配戴义齿人群中，刷牙对基牙菌斑、菌丛的影响，本实验分析了可摘局部义齿基牙软垢指数和菌丛的变化情况．结果表明，甲乙两组软垢指数间有非常显著性差异；而菌斑中粘性放线菌、变形链球菌及乳杆菌的百分比差异则不显．结果提示：每天保持一定的刷牙时间，能抑制菌斑的形成，但对致龋菌的生长却没有控制作用．因此，义齿配戴者除刷牙外，还应选用其它的义齿清洁产品，以预防义齿性疾病．

In order to determine the effect of tooth-brushing on dental plaque and oral flora,this experiment analysed Debris Index and microflora on abutment teeth in patients treated with removable partial dentures.The result has demonstrated that a significant difference was found in Debrix Index between A and B.But there is no statistical significance in the percentage of Actinomyces Viscosus、Streptococcus Mutans and Lactobacilli between A and B.To conclude,this study seemed to verify that tooth-brushing is effective in reducing supragingival plaque formation without causing major shifts in dental microflora,The wearers need oral hygiene products to reduce micropbiological contamination besides tooth-brushing.