ArticleWorld journal of clinical cases2022
Comparative study of surface electromyography of masticatory muscles in patients with different types of bruxism.
Article in World journal of clinical cases, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 11 citations in OpenAlex.
- Immediate effects of TENS intervention in bruxers with localized masticatory muscle hyperalgesia: a randomized, double-blinded, proof-of-concept study.BMC oral health · 2026Trial
- Detection of Lip, Tongue, Masseter, and Temporalis Muscle Contractions with Electromyography Tools as an Early Diagnostic Medium for Dentoalveolar Malocclusion.European journal of dentistry · 2025Article
- Condylar Parameters and Mandibular Movement Patterns in Bruxers Using an Optical Jaw Tracking System.Journal of clinical medicine · 2024Article
- Unilateral molar Incisor hypomineralization influences the chewing side? an observational study in children.Clinical oral investigations · 2024Observational
- Relationship between bruxism and mandibular bone modifications based on medical imaging: a scoping review.BMC oral health · 2023Article
- The Effect of Asymmetrical Occlusion on Surface Electromyographic Activity in Subjects with a Chewing Side Preference: A Preliminary Study.Healthcare (Basel, Switzerland) · 2023Article
- Ecological Momentary Assessment of Masseter Muscle Activity in Patients with Bruxism.International journal of environmental research and public health · 2022Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundBruxism is a rhythmic masticatory muscle activity that occurs involuntarily in a non-physiologically functional state. There is a lack of research classifying the functional status of masticatory muscles in patients with different mandibular movement types (centric clenching or eccentric grinding) of bruxism.
aimTo assess the differences of the masticatory muscle activity in patients with different types of bruxism.
methodsA total of 21 subjects with centric bruxism (CB) and 21 subjects with eccentric bruxism (ECB) were screened from college students according to a questionnaire and their tooth wear features. Sixteen subjects with no bruxism were also recruited. The surface electromyography (EMG) signals of the temporalis anterior (TA) and superficial masseter muscle (MM) were measured in different mandibular positions and during the chewing task. The EMG amplitude and chewing cycle duration parameters were then analyzed.
resultsThe CB group showed fewer muscle maximal motor units, with the MM being more pronounced, a higher proportion of muscle contractions to be recruited for the same load of chewing activity, and a longer chewing cycle. The ECB group showed more TA maximal motor units and higher MM activity on the non-working side in unilateral chewing.
conclusionCB mainly affects the MM, and patients with CB show reduced masticatory muscle contraction efficiency and chewing cycle efficiency. ECB mainly affects the TA, and patients with ECB show enhanced contraction of non-functional lateral muscle bundles.
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