Tanaka M, Hanioka T, Kishimoto M, Shizukuishi S
Department of Preventive Dentistry, Osaka University Faculty of Dentistry, Japan.
J Clin Periodontol. 1998 Jul;25(7):561-5. doi: 10.1111/j.1600-051x.1998.tb02488.x.
The effect of mechanical toothbrush stimulation on gingival microcirculatory functions was examined with and without removal of supragingival plaque in inflamed gingiva of 6 dogs. After removal of the ligatures, 4 treatment modalities: mechanical stimulation by vibration (MS), removal of supragingival plaque (PR), combination (MS+PR) and no treatment (NT), were administered to each quadrant for 2 weeks. Both quadrants with plaque removal showed a marked decrease in the gingival index score, while slight and moderate decreases were observed in NT and MS quadrants, respectively. Changes in gingival crevicular fluid flow, pocket oxygen tension and hemoglobin oxygen saturation in the gingiva were significant in the MS, PR and MS+PR quadrants. Significant treatment-by-time effects were found for all of the parameters of microcirculatory function between NT and MS quadrants, and gingival crevicular fluid flow between PR and MS+PR quadrants, respectively. These findings suggest that mechanical stimulation with a toothbrush may offer an additional benefit to gingival microcirculatory functions in inflamed gingiva.
在6只犬的炎症牙龈中，研究了在去除和未去除龈上菌斑的情况下，机械牙刷刺激对牙龈微循环功能的影响。去除结扎丝后，对每个象限进行4种治疗方式：振动机械刺激（MS）、去除龈上菌斑（PR）、联合治疗（MS+PR）和不治疗（NT），持续2周。两个进行菌斑清除的象限牙龈指数评分显著降低，而NT象限和MS象限分别观察到轻微和中度降低。MS、PR和MS+PR象限牙龈沟液流量、牙周袋氧张力和牙龈血红蛋白氧饱和度均有显著变化。NT象限和MS象限之间所有微循环功能参数，以及PR象限和MS+PR象限之间牙龈沟液流量，均发现显著的治疗时间交互效应。这些发现表明，用牙刷进行机械刺激可能对炎症牙龈的牙龈微循环功能有额外益处。
