Effects of orthodontic aligners on 24-hour masseter muscle activity: a multiple-day electromyographic study.

IF 2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Cranio-The Journal of Craniomandibular & Sleep Practice Pub Date : 2024-06-05 DOI:10.1080/08869634.2024.2357054

A Colonna, F Lobbezoo, G Gravili, L Lombardo, J Ahlberg, D Manfredini

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Abstract

Objective: This study aimed to assess the effects of aligners on masseter muscle activity by using an electromyographic device in the home environment.

Methods: The study was performed on healthy patients who required orthodontic treatment. Three different 24 h-EMG recording sessions were performed in different conditions: without aligners, with passive aligners, and with active aligners. The non-functional MMA work index (nfMMA-WI) and the non-functional MMA time index (nfMMA-TI) for both awake and sleep hours were assessed. ANOVA test was used to compare the average activity during the three recording conditions.

Results: On average, a total recording time of 204.7 ± 7.9 hours were provided for each patient. For most patients, ANOVA test showed an absence of significant differences between the recording sessions.

Conclusions: The impact of our results is not negligible: clinicians can find remarkable support to the hypothesis that the use of aligners affects the MMA only in a minority of subjects.

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正畸矫治器对 24 小时咬肌活动的影响：一项多天肌电图研究。

研究目的本研究旨在通过在家庭环境中使用肌电图装置评估矫治器对咀嚼肌活动的影响：研究对象是需要接受正畸治疗的健康患者。在不佩戴矫治器、佩戴被动式矫治器和佩戴主动式矫治器的不同条件下，进行了三次不同的 24 小时肌电图记录。评估了清醒和睡眠时的非功能性 MMA 工作指数（nfMMA-WI）和非功能性 MMA 时间指数（nfMMA-TI）。方差分析检验用于比较三种记录条件下的平均活动量：结果：每位患者的总记录时间平均为 204.7 ± 7.9 小时。方差分析测试表明，大多数患者的记录时间之间没有显著差异：我们的研究结果的影响不容忽视：临床医生可以发现，使用矫治器仅对少数受试者的 MMA 有影响，这一假设得到了很好的支持。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cranio-The Journal of Craniomandibular & Sleep Practice DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

4.50

自引率

12.50%

发文量

审稿时长

>12 weeks

期刊介绍： CRANIO: The Journal of Craniomandibular & Sleep Practice is the oldest and largest journal in the world devoted to temporomandibular disorders, and now also includes articles on all aspects of sleep medicine. The Journal is multidisciplinary in its scope, with editorial board members from all areas of medicine and dentistry, including general dentists, oral surgeons, orthopaedists, radiologists, chiropractors, professors and behavioural scientists, physical therapists, acupuncturists, osteopathic and ear, nose and throat physicians. CRANIO publishes commendable works from outstanding researchers and clinicians in their respective fields. The multidisciplinary format allows individuals practicing with a TMD emphasis to stay abreast of related disciplines, as each issue presents multiple topics from overlapping areas of interest. CRANIO''s current readership (thousands) is comprised primarily of dentists; however, many physicians, physical therapists, chiropractors, osteopathic physicians and other related specialists subscribe and contribute to the Journal.