Immediate Effect of Ultrasound on Bilateral Masseter Myalgia: A Randomized Dose-Response Clinical Trial.

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-01-01 Epub Date: 2022-11-28 DOI:10.11607/ofph.2836

Yasmin Fadol, Yoly Gonzalez, Heidi C Crow, W D McCall

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引用次数: 0

Abstract

Aims: (1) To determine the dose-response relationship of therapeutic ultrasound for TMD-related pain in the masseter muscle among four doses comprised of two intensities (0.4 W/cm² and 0.8 W/cm²) and two duty cycles (50% and 100%); and (2) to determine if therapeutic ultrasound applied to the masseter muscle would elicit a segmental effect on the ipsilateral temporalis muscle.

Methods: A total of 28 adult women with bilateral myalgia were randomly allocated to one of the four intervention doses. Therapeutic ultrasound was applied on each side of the masseter sequentially for 5 minutes. The following outcomes were measured before and immediately after each intervention: self-reported pain score, pressure pain thresholds for the masseter and temporalis muscles, and intraoral temperature adjacent to the treated masseter.

Results: Self-reported pain scores showed neither significant main effects nor significant interaction among the intensity or duty cycle doses (all P > .05). The change in the pressure pain threshold of the masseter showed a significant interaction (P = .02) attributed to the 0.4 W/cm² and 100% duty cycle dose. Intraoral temperature was significantly increased and associated with the duty cycle (P = .01). A significant segmental effect of the pressure pain threshold of the temporalis was found for intensity (P = .01).

Conclusion: There was an increase in the pressure pain threshold of the painful masticatory muscles and an increase in intraoral temperature adjacent to the treated area immediately after the use of ultrasound at 0.4 W/cm² with a 100% duty cycle.

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超声对双侧咬肌痛的直接影响:一项随机剂量反应临床试验。

目的:(1)确定两种强度(0.4 W/cm2和0.8 W/cm2)和两种占空比(50%和100%)的4种剂量下治疗性超声治疗咬肌tmd相关疼痛的量效关系;(2)确定应用于咬肌的治疗性超声是否会对同侧颞肌产生节段性影响。方法:共有28名患有双侧肌痛的成年女性被随机分配到四个干预剂量中的一个。治疗性超声依次在咬肌两侧照射5分钟。在每次干预之前和之后立即测量以下结果:自我报告的疼痛评分，咬肌和颞肌的压力疼痛阈值，以及治疗后咬肌附近的口内温度。结果:自我报告的疼痛评分显示，强度或占空比剂量之间没有显著的主效应，也没有显著的相互作用(均P < 0.05)。咬肌压力痛阈值的变化与0.4 W/cm2和100%占空比剂量有显著的相互作用(P = 0.02)。口腔内温度显著升高，且与占空比相关(P = 0.01)。强度对颞肌压力痛阈值有显著的节段性影响(P = 0.01)。结论:使用100%占空比0.4 W/cm2超声后，疼痛咀嚼肌压力痛阈值升高，治疗区附近口内温度升高。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.