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The Effect of Prolonged Sugar-Free Chewing Gum Mastication on Self-Reported Fatigue Levels and Changes of Static and Dynamic Surface Electromyography Parameters in Young Individuals With and Without Temporomandibular Joint Disorders.

Recruitingn/aAges 19 Years - 35 YearsAllUniversity of Milan
NCT07273123 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

This case-control study investigates fatigue induced by prolonged gum mastication in individuals with temporomandibular disorders (TMD). The study addresses two primary questions: How does self-reported fatigue, measured with a visual analogue scale (VAS), change during sustained chewing? How do static and dynamic surface electromyographic (sEMG) parameters evolve over the same period? Participants with TMD will be compared with healthy controls to determine group differences in perceived fatigue and EMG responses. All participants will undergo baseline EMG assessment, then chew sugar-free gum continuously for 3 minutes, alternating sides without rest. After each 3-minute interval, static and dynamic EMG recordings will be obtained and participants will rate their fatigue on the VAS. This cycle may be repeated up to six times (maximum 18 minutes). Participants are free to stop chewing

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📋 Eligibility rules (as published)
Inclusion criteria (both groups): * Age 19-35 years * Chewing-gum users, even occasional * Good general health * Good oral health Inclusion criteria (Healthy controls): \- no diagnosed temporomandibular joint disorders Inclusion criteria (study group) \- diagnosed temporomandibular joint disorders Exclusion criteria (both groups): * Non chewing gum users * History of neurological disorders * History of musculoskeletal diseases * History of facial or cervical injuries * Presence of cervical pain * Two or more missing teeth * Current treatment with fixed or removable orthodontic appliances * Active periodontal disease * Presence of cavitated carious lesions
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What it tests

  • Mastication of sugar-free chewing gum
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Where

1 site
University of Milan
Milan, Italy
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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