Effects of an intraoral device (IOD) on electromyographic activity on the masseter and temporal muscles in Class III patients.

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2025-03-01 Epub Date: 2022-08-09 DOI:10.1080/08869634.2022.2106709

Andrea E Bono, Jorge Learreta

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Abstract

Objective: Class III malocclusion is characterized by a loss of vertical dimension associated with muscle imbalance. The present study was designed to determine electromyographic amplitude changes in temporal (T) and masseter (M) at rest and during clenching in Class III patients treated with an intraoral device (IOD) over a 24-hour period for 30 days with transcutaneous electrical nerve stimulation (TENS).

Methods: Twelve patients with Class III (mean age 27.7 ± 1.2 years) were treated with TENS and IOD. Ten untreated patients composed the control group. Data were analyzed using Wilcoxon test and ANOVA.

Results: Patients treated with TENS and IOD showed a marked decrease in hyperactivity of M and T at rest (p = 0.001) and an increase during clenching (p = 0.001). The control group maintained similar activity in both positions.

Conclusion: This study confirms that using TENS and IOD in patients improves muscle activity of T and M.

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口内装置（IOD）对 III 级患者咀嚼肌和颞肌肌电图活动的影响。

目的：Ⅲ类错颌畸形的特点是与肌肉失衡相关的垂直尺寸缺失。本研究旨在确定Ⅲ类错牙合患者在休息和咬紧牙关时颞肌（T）和颌肌（M）的肌电图振幅变化，颞肌（T）和颌肌（M）在24小时内接受口内装置（IOD）治疗，经皮神经电刺激（TENS）治疗30天：12 名 III 级患者（平均年龄为 27.7 ± 1.2 岁）接受了 TENS 和 IOD 治疗。对照组为 10 名未经治疗的患者。采用 Wilcoxon 检验和方差分析对数据进行分析：结果：接受 TENS 和 IOD 治疗的患者在休息时 M 和 T 的亢进活动明显减少（p = 0.001），而在咬紧牙关时则有所增加（p = 0.001）。对照组在两种姿势下均保持相似的活性：本研究证实，对患者使用 TENS 和 IOD 可改善 T 和 M 的肌肉活动。

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

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464

期刊介绍： ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.