Selected muscle tone and asymmetry of the occlusal plane in case of intracapsular temporomandibular joint disorder.

IF 2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Cranio-The Journal of Craniomandibular & Sleep Practice Pub Date : 2024-05-01 Epub Date: 2021-08-06 DOI:10.1080/08869634.2021.1964052

Maksim Yurchenko, Hana Hubálková, Jindřich Charvát

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Abstract

Objective: To discover the extent of the connection between occlusal plane asymmetry and the rest tone of the four muscle groups of the orofacial region with temporomandibular joint pathology.Methods: Eighty-seven subjects were divided into two groups. The following methods were applied: clinical examination, roentgenological examination, and electromyography. Data were evaluated and statistically analyzed.Results: The variability of occlusal plane inclination in relation to the porion plane was 0-4.6º.The tonus of masseter muscle was higher in the experimental group: 1.45 mV more than in the control group: 1.23 mV (p < 0.05).Conclusion: Asymmetry of the occlusal plane inclination was found for nearly all subjects in both groups. It can be compensated for by adaptation mechanisms and does not cause temporomandibular joint disorders. Undertaken research shows the existence of a proven correlation between TMJ disorders and the resting tonus of the masseter muscle.

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选择性肌张力和咬合面不对称在囊内颞下颌关节紊乱病例中的应用。

目的发现咬合平面不对称与颞下颌关节病变患者口面部四组肌肉的静息张力之间的关联程度：方法：将 87 名受试者分为两组。方法：将 87 名受试者分为两组，分别进行临床检查、X 光检查和肌电图检查。对数据进行评估和统计分析：实验组受试者的咬合面倾斜度相对于孔面的变化率为 0-4.6º：实验组的颌下肌张力比对照组高 1.45 mV：实验组的咀嚼肌强直度更高，为 1.45 mV，而对照组为 1.23 mV（P两组几乎所有受试者的咬合平面倾斜度都不对称。它可以通过适应机制得到补偿，不会导致颞下颌关节紊乱。所进行的研究表明，颞下颌关节紊乱与颌间肌静息强直之间存在已被证实的相关性。

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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.