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Could a simple mouthguard silence your ringing ears?

NCT ID NCT07211711

Recruiting now Symptom relief Sponsor: University of Sao Paulo General Hospital Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a stabilizing occlusal splint (a type of mouthguard) can reduce tinnitus (ringing in the ears) in people who also have temporomandibular joint (TMJ) disorder. Researchers will compare the real splint to a placebo splint in 63 adults over 4 months, measuring changes in tinnitus distress and quality of life.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
stabilizing occlusal splint
What this could lead to
If it works, this could provide a simple, non-drug treatment option for people whose tinnitus is linked to jaw joint problems.
What could go wrong
This is a small, early-stage trial with only 63 participants. The splint may not improve tinnitus more than a placebo, and results may not apply to everyone with tinnitus.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

temporomandibular joint disorder temporomandibular joint dysfunction syndrome tinnitus

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

TEMPOROMANDIBULAR DISORDERS (TMD) TINNITUS TMJ

Contacts and locations

Locations

  • University of São Paulo Faculty of Medicine Clinics Hospital

    RECRUITING

    São Paulo, São Paulo, 05.403-905, Brazil

    Contact Phone: •••-•••-•••• Email: •••••@•••••

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