ArticleJournal of oral rehabilitation2025
Maximum Muscle Output and Electromyographic Activity of Masticatory Muscles in Persons With Parkinson's Disease. A Case-Control Study.
Article in Journal of oral rehabilitation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
1 citing paper in PubMed.
- Oral health and oral microbiota composition in patients with Parkinson's disease: a case‒control study.Journal of oral microbiology · 2026Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
backgroundParkinson's disease (PD) affects the motor system of the body; however, there is limited understanding of how the disease impacts the complex interaction of the masticatory muscles.
objectiveThe purpose of this study is to investigate the maximum muscle output of the masticatory muscles during natural functions.
methodsThis clinical case-control study included persons with PD and age- and gender-matched controls without PD. The masticatory muscle output was evaluated by bite force and bilateral surface electromyography. Electromyographic recordings were conducted from the anterior temporal, masseter and digastric muscles during chewing and maximum voluntary contraction (MVC) during maximal intercuspal biting (MVC biting) and maximal jaw opening (MVC opening). Statistical analyses included χ
resultsThe study included 20 persons with PD (median age: 68.5 years) and 20 persons without PD (median age: 67 years). No significant differences were found between the groups in terms of demographics, teeth present, or bite force measurements. The activity in the masseter muscle was significantly lower in the PD group during MVC biting. The PD group utilised 82% of their masseter muscle MVC during chewing, whereas the control group used 49% of theirs. Additionally, a negative correlation was observed between the severity of PD and the bite force and digastric muscle activity during MVC opening.
conclusionThese findings indicate that PD may alter the activity patterns of the masticatory muscles during function. This new understanding can be utilised to design targeted interventions aimed at improving orofacial function for this patient group.
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