佩戴透明热塑保持器与包裹式保持器患者的咀嚼肌活动和口腔健康相关生活质量:随机对照试验。

IF 1.3 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Rungtiwa Jirawiwatsaree, Weera Supronsinchai, Chidsanu Changsiripun
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引用次数: 0

摘要

目的:评估患者在佩戴透明热塑或包裹式保持器 6 个月期间,在静息、最大自主咬合 (MVC) 和咀嚼时,浅层颌间肌和颞前肌的表面肌电图 (sEMG) 活动情况。此外,还使用口腔对日常表现的影响(OIDP)指数评估了患者佩戴 6 个月后与口腔健康相关的生活质量:招募了 60 名 14-39 岁的患者(19 名男性/41 名女性),他们在完成正畸治疗后接受了上下保持器。患者被随机分为透明热塑保持器组(30 人)和包裹式保持器组(30 人)。分别记录保持器交付时(T0)、佩戴 3 个月后(T1)和佩戴 6 个月后(T2)的 sEMG 活动。结果:结果:在 T0、T1 或 T2 时,两组间的咀嚼肌和颞肌的 sEMG 参数均无差异。在 6 个月期间,两组的两块咀嚼肌在 MVC 和咀嚼时的 sEMG 活动均有所增加;然而,只有颞肌在休息时的正常化 sEMG 活动有所减少(P 结论:在观察期间,无论使用哪种保持器,两块咀嚼肌在 MVC 和咀嚼时的 sEMG 活动均呈上升趋势,而颞肌在休息时的活动则呈下降趋势。值得注意的是,这些 sEMG 变化并不影响患者的主观咀嚼功能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Masticatory muscle activity and oral health-related quality of life in patients wearing clear thermoplastic versus wrap-around retainers : A randomized controlled trial.

Aim: To evaluate the surface electromyography (sEMG) activity of the superficial masseter and anterior temporalis muscles at rest, during maximum voluntary clenching (MVC), and mastication, over 6 months of wearing clear thermoplastic or wrap-around retainers. Furthermore, the patients' oral health-related quality of life was assessed using the Oral Impacts on Daily Performance (OIDP) index at 6 months.

Materials and methods: Sixty patients aged 14-39 years (19 males/41 females) who received upper and lower retainers after finishing orthodontic treatment were recruited. The patients were randomly divided into a clear thermoplastic retainer group (n = 30) or a wrap-around retainer group (n = 30). The sEMG activity was recorded at retainer delivery (T0), after 3 months (T1), and after 6 months of wearing (T2). The OIDP index was evaluated at T2.

Results: None of the sEMG parameters for the masseter and temporalis muscles were different between the two groups at T0, T1, or T2. Over the period of 6 months, both masticatory muscles in both groups demonstrated increased sEMG activity during MVC and mastication; however, only the temporalis muscle demonstrated decreased normalized sEMG activity at rest (P < 0.05). The frequency and severity of the OIDP in the eating aspect at T2 was low and similar in both groups.

Conclusions: sEMG activity of the two masticatory muscles tended to increase during MVC and mastication, while temporalis muscle activity tended to decrease at rest during the observation period, regardless of retainer type. Notably, these sEMG changes did not affect the patients' subjective masticatory function.

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来源期刊
CiteScore
3.90
自引率
0.00%
发文量
64
审稿时长
>12 weeks
期刊介绍: The Journal of Orofacial Orthopedics provides orthodontists and dentists who are also actively interested in orthodontics, whether in university clinics or private practice, with highly authoritative and up-to-date information based on experimental and clinical research. The journal is one of the leading publications for the promulgation of the results of original work both in the areas of scientific and clinical orthodontics and related areas. All articles undergo peer review before publication. The German Society of Orthodontics (DGKFO) also publishes in the journal important communications, statements and announcements.
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