Effect of Postoperative Pain Control in Vibration-assisted Orthodontics: A Systematic Evaluation and Meta-analysis

Objective: To evaluate the effect of vibration-assisted orthodontic postoperative pain control by Meta-analysis.Methods: PubMed, the Cochrane Library, CBM, CNKI and Wanfang databases were searched to collect the visual analogue scale (VAS) literature on the effect of pain control after vibration assisted orthodontic surgery. The retrieval period was from the establishment of the databases to 2022-03. Literature screening was performed according to the Cochrane systematic evaluator manual. Stata 16.0 performed the heterogeneity test, publication bias test and sensitivity analysis. RevMan 5.4 performed the subgroup analysis. Results: 6 articles of Visual Analogue Scale (VAS) outcome indicators were finally included, including 9 groups of study data. The results of Meta-analysis showed that vibration intervention after orthodontics can reduce the VAS index of postoperative pain [MD= -0.69,95%CI (-1.07, -0.31), P=0.002]. Conclusion: Vibration can assist in relieving the patient's post-orthodontic pain and reduce the level of discomfort. Clinicians can intervene when necessary to help patients through difficult periods of orthodontic treatment and increase their confidence in treatment to promote more efficient completion of orthodontic treatment. Due to the limitation of the quality of the included literature, this result may be biased. It still needs a long-term, large-scale, high-quality randomized controlled experiment to further explore the appropriate vibration device, parameters and application scheme.