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Why do people grind their teeth at night? new study seeks answers

NCT ID NCT04214561

Knowledge-focused Sponsor: Wroclaw Medical University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only This study
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jul 10, 2026 · Updated 2 times

Summary

This study looks at 50 adults with sleep bruxism (teeth grinding during sleep) to understand how it affects sleep, pain, anxiety, and overall health. Researchers will use sleep tests, blood samples, and questionnaires to find links between bruxism and other conditions. The goal is to learn more about what causes bruxism and how it impacts the body.

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

Study facts

What this study's own registry entry says, in plain language.

Participants

About 50 people

The number the study aims to enrol. It can still change while the study runs.

Started

Dec 2019

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Patients diagnosed with probable sleep bruxism referred to the Department of Internal Medicine, Occupational Diseases and Hypertension and Clinical Oncology for polysomnography. Healthy controls.

Ages

18 to 70 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * diagnosed sleep bruxism * age between 18 and 70 Exclusion Criteria: * age under 18 * age over 70 * terminal general diseases * severe mental disorders * taking drugs that could falsify polysomnography * confirmed alcoholism * drug addiction

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Conditions

The condition(s) this trial relates to.

anxiety anxiety disorder bruxism Pain parasomnia, sleep bruxism type Psychophysiologic Disorders Sleep Bruxism sleep disorder sleep-wake disorder somatoform disorder temporomandibular joint disorder

As listed by the trial registrant

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

Anxiety Mental status change Pain Psychosomatic disorder Sleep bruxism Sleep disorder Temporomandibular disorder

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Wroclaw Medical University

    Wroclaw, Poland

More trials for these conditions

Other studies related to the condition(s) this trial covers.