Effects of botulinum toxin type A on the masseter muscles of a patient with a temporomandibular joint disorder of muscular origin: A case report

Q3 Dentistry

Oral and Maxillofacial Surgery Cases Pub Date : 2024-12-21 DOI:10.1016/j.omsc.2024.100385

Mohammad Nasoh Alzaeem , Bassel Brad , Ibrahim Haddad , Mohammad Y. Hajeer

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引用次数: 0

Abstract

Temporomandibular joint disorders (TMDs) typically manifest with symptoms and signs such as pain, mandibular movement, dysfunction, or joint sounds. Botulinum toxin type A (BTX/A) is a biological toxin that inhibits the release of the neurotransmitter acetylcholine at the neuromuscular junction. This toxin is used to treat hyperactivity of masseter muscles and TMD symptoms. This case report aimed to investigate the effects of BTX/A injection in the masseter and lateral pterygoid muscles of a patient with painful symptoms of TMDs via electromyography (EMG), with a follow-up of six months post-treatment. During each visit, the clinical effects, which were evaluated based on pain intensity (NPRS), the bruxism questionnaire, and maximum mouth opening, were evaluated at five-time points, pre-injection and 2, 6, 12, and 24 weeks after the injection. Based on this case report, there was a clear improvement in the studied parameters, with a significant decrease in the electromagnetic activity of the injected muscles as shown by EMG; thus, BTX/A can be considered an effective treatment to relieve symptoms and improve the quality of life in patients with TMDs of muscular origin, relying on EMG as an effective diagnostic tool and for subsequent evaluation of treatment results.

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来源期刊

Oral and Maxillofacial Surgery Cases Medicine-Otorhinolaryngology

CiteScore

0.60

自引率

0.00%

发文量

审稿时长

69 days

期刊介绍： Oral and Maxillofacial Surgery Cases is a surgical journal dedicated to publishing case reports and case series only which must be original, educational, rare conditions or findings, or clinically interesting to an international audience of surgeons and clinicians. Case series can be prospective or retrospective and examine the outcomes of management or mechanisms in more than one patient. Case reports may include new or modified methodology and treatment, uncommon findings, and mechanisms. All case reports and case series will be peer reviewed for acceptance for publication in the Journal.