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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.

NCT07273123 · Status: RECRUITING · Type: OBSERVATIONAL · Enrollment: 30

Last updated 2026-05-01

No results posted yet for this study

Summary

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 at any time if fatigue becomes intolerable.

Conditions

  • Temporomandibular Joint Disorder

Interventions

OTHER

Mastication of sugar-free chewing gum

The chewing task will last for a maximum of 18 minutes.

Sponsors & Collaborators

  • University of Milan

    lead OTHER

Eligibility

Min Age
19 Years
Max Age
35 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-10-01
Primary Completion
2026-07-30
Completion
2026-07-30

Countries

  • Italy

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07273123 on ClinicalTrials.gov