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Bite splints may reshape your smile – study tests the effect

NCT ID NCT07491640

Knowledge-focused Sponsor: The University of Texas Health Science Center, Houston 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Sep 11, 2026 · Updated 2 times

Summary

This study looks at how raising or lowering the bite (occlusal vertical dimension) with special splints changes the lower face and lips. Fifty adults with full dentures will have their bite temporarily adjusted and their face scanned in 3D. The goal is to understand how bite height influences facial form and lip position, which could improve dental treatments.

What this could mean

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

Active substance
removable bite splints (device)
What this could lead to
If successful, this could help dentists better design dentures and bite adjustments for improved facial appearance and lip function.
What could go wrong
This is a small, early-stage observational study with only 50 participants. Results may not apply to people with natural teeth or facial differences.

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

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

32 people

The number who actually took part.

Started

Jun 2026

Finished

Jul 2026

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.

Ages

21 to 90 years

Sex

Anyone

Healthy volunteers

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

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

Inclusion Criteria: -Complete edentulous with complete dentures or overdentures Exclusion Criteria: * Gross facial asymmetry * A history of surgery in the facial area * A history of neurologic disorders * Ill-fitting dentures * Dentures with inaccurate occlusal vertical dimension (OVD) * Inability or unwillingness to smile * Allergy to nitrile, vinyl polysiloxane (VPS) material or photopolymer resins. * Presence of facial hair that would interfere with marking reference points on the face * Severe class II or class III malocclusion

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As listed by the trial registrant

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

Assessment of vertical dimension change

Contacts and locations

Locations

  • The University of Texas Health Science Center at houston

    Houston, Texas, 77030, United States