Sleep apnea study tests coaching to boost mouth guard use
NCT ID NCT04092660
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether extra support—like a health pamphlet, a video, and motivational counseling—helps people with obstructive sleep apnea use their mandibular advancement appliance (a mouth guard) more consistently. Fifty-six adults (age 40+) with sleep apnea will be randomly assigned to receive either the extra support or standard care. Their mouth guard use will be tracked for 6 months using a micro-sensor and sleep diaries.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- behavioural support (health pamphlet, video, and motivational counseling)
- What this could lead to
- If it works, this could point toward simple ways to help people with sleep apnea stick with their mouth guard treatment, improving their sleep and health.
- What could go wrong
- This is a small, early-stage study (56 people) testing a behavioural intervention, not a new drug or device. The extra support may not make a meaningful difference in how often people use the mouth guard.
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.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 56 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2019
- Expected to finish
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Jun 2026
An estimate. End dates often move.
- Lead sponsor
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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.
- Ages
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40 to 90 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide 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: * Adult (≥ 40 years old) * Confirmed diagnosis of OSA (AHI ≥ 5) * Referred for MAA therapy * Must be able to understand, read and write English; with the assistance of a translator Exclusion Criteria: * Insufficient teeth for MAA fabrication * Poor dental and/or periodontal health * Symptomatic Temporomandibular Disorder (TMD) * Previously used an MAA * Patients with Epilepsy
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Royal London Dental Hospital
RECRUITINGLondon, E1 2AD, United Kingdom
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