Section of Periodontics, School of Dentistry, Department of Surgical Specialties, Radiological Science and Public Health, University of Brescia, Brescia, Italy.
U.O.C. Odontostomatologia - ASST degli Spedali Civili di Brescia, Brescia, Italy.
Int J Dent Hyg. 2021 Nov;19(4):366-375. doi: 10.1111/idh.12541. Epub 2021 Aug 13.
The aim of this study was to compare the efficacy of two brushing methods (manual vs. sonic) in terms of plaque control after a session of professional mechanical plaque removal (PMPR).
Subjects with gingivitis underwent a session of PMPR and were randomly assigned to sonic (SB) or manual brushing (MB). Oral hygiene instructions were provided at baseline (BL), 2 (T0a), 4 (T0b) and 6 weeks (T1) and 6 months (T2). Plaque Index (PI), Gingival Index (GI) and bleeding on probing (BoP) were measured at BL, T1 and T2. The proportion of sites with PI, GI and BoP was modelled at site level using a negative binomial regression fitted via generalized linear mixed model accounting for intra-patient correlation.
Thirty-two subjects were selected, 16 assigned to each group and 31 completed the study. PI, BoP and GI were comparable at BL. At T1, PI was successfully maintained at 6.21% for SB and 22.81% for MB, while at T2 reached 11.34% for SB and 28% for MB, favouring the SB group (p < 0.001). GI and BoP were significantly lower in the SB group at T1, with a BoP reduction for SB about 3 times higher than MB (p < 0.001). These parameters then levelled at T2 between the groups, with BOP reaching 0.14% versus 0.05% (p = 0.356) and GI 1.75% versus 3.52% (p = 0.020).
Sonic brushing seemed to maintain a lower PI score compared to a manual brush at 6 months. BoP and GI resulted comparable.
本研究旨在比较两种刷牙方法（手动 vs. 声波）在专业机械牙菌斑去除（PMPR）后控制菌斑的效果。
患有牙龈炎的受试者接受了一次 PMPR 治疗，并随机分为声波（SB）或手动刷牙（MB）组。在基线（BL）、2 周（T0a）、4 周（T0b）和 6 周（T1）及 6 个月（T2）时提供口腔卫生指导。在 BL、T1 和 T2 时测量菌斑指数（PI）、牙龈指数（GI）和探诊出血（BoP）。采用负二项回归模型通过广义线性混合模型在部位水平上建模，该模型考虑了患者内相关性。
共选择了 32 名受试者，每组 16 名，31 名完成了研究。BL 时 PI、BoP 和 GI 相似。在 T1 时，SB 组 PI 成功维持在 6.21%，MB 组为 22.81%，而在 T2 时，SB 组达到 11.34%，MB 组为 28%，SB 组更优（p<0.001）。在 T1 时，SB 组的 GI 和 BoP 显著低于 MB 组，SB 组的 BoP 降低约为 MB 组的 3 倍（p<0.001）。这些参数在 T2 时在两组之间趋于平衡，BOP 达到 0.14%比 0.05%（p=0.356），GI 达到 1.75%比 3.52%（p=0.020）。
与手动牙刷相比，声波刷牙在 6 个月时似乎能保持较低的 PI 评分。BoP 和 GI 结果相似。
