J Am Dent Assoc. 2021 Feb;152(2):115-126.e4. doi: 10.1016/j.adaj.2020.10.002. Epub 2020 Dec 24.
The authors conducted a systematic review to assess the efficacy of oscillating rotating (OR) versus side-to-side (SS) powered toothbrushes on plaque and gingival index reduction.
The authors searched 3 electronic databases and the gray literature for randomized clinical trials in which investigators compared OR with SS powered toothbrushes. Two authors independently screened the studies, performed data abstraction, and assessed the risk of bias. The authors used random-effects model meta-analyses to pool results across trials and the Grading of Recommendations Assessment, Development and Evaluation approach to rate the certainty of evidence.
This systematic review included 24 trials in which researchers enrolled a total of 2,998 patients. There was moderate-certainty evidence that SS toothbrushes may result in little to no difference in plaque index reduction from baseline to 4 weeks compared with OR toothbrushes (standardized mean difference, 0.02; 95% confidence interval, -0.46 to 0.42). There was moderate-certainty evidence that SS toothbrushes may result in little to no difference in gingival index reduction from baseline to 4 weeks compared with OR toothbrushes (standardized mean difference, 0.13; 95% confidence interval, -0.47 to 0.22). There was moderate-quality evidence suggesting little to no difference in adverse events.
The evidence does not suggest the superiority of either OR or SS toothbrushes for plaque or gingival index reduction.
Clinicians and patients considering the use of either of these toothbrushes are unlikely to observe more benefits with one type versus the other.
作者进行了一项系统评价，以评估振荡旋转（OR）与侧向（SS）动力牙刷在减少菌斑和牙龈指数方面的疗效。
作者搜索了 3 个电子数据库和灰色文献，以寻找比较 OR 与 SS 动力牙刷的随机临床试验。两名作者独立筛选研究，进行数据提取，并评估偏倚风险。作者使用随机效应模型荟萃分析汇总试验结果，并使用推荐评估、制定和评估方法评估证据的确定性等级。
本系统评价共纳入 24 项试验，研究人员共纳入 2998 名患者。有中等确定性证据表明，与 OR 牙刷相比，SS 牙刷在 4 周时的菌斑指数降低方面可能没有差异（标准化均数差，0.02；95%置信区间，-0.46 至 0.42）。有中等确定性证据表明，与 OR 牙刷相比，SS 牙刷在 4 周时的牙龈指数降低方面可能没有差异（标准化均数差，0.13；95%置信区间，-0.47 至 0.22）。有低质量证据表明，不良反应差异不大。
证据表明，OR 或 SS 牙刷在减少菌斑或牙龈指数方面都没有优势。
考虑使用这两种牙刷之一的临床医生和患者不太可能观察到一种类型比另一种类型有更多的益处。
