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New study tests Chin-Plate device against facemask for underbite correction

NCT ID NCT07383259

Disease control Sponsor: Universidad Complutense de Madrid 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 This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study compares two ways to correct an underbite (Class III malocclusion) in children whose jaws are still growing. One method uses a facemask attached to a tooth-borne expander, while the other uses a chin-plate anchored to the bone with small screws. Researchers will measure changes in jaw alignment using X-rays. The goal is to see which approach works better for improving the bite.

What this could mean

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

Active substance
Tooth-borne expander with facemask or hybrid skeletal anchorage expander with chin-plate
What this could lead to
If successful, this could show that a chin-plate device is more effective than a facemask for correcting jaw alignment in children with Class III malocclusion.
What could go wrong
This is a small, non-randomized study with only 36 participants, so results may not apply to everyone. It is also retrospective, meaning it looks back at past data, which can introduce bias.

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

About 36 people

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

Expected to start

Feb 2026

An estimate. Start dates often move.

Expected to finish

Mar 2027

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.

Ages

Up to 18 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 * Growing patients (CVS1-CVS3) * Patent midpalatal suture (stages A-C) * Skeletal Class III malocclusion (ANB \< 0°, Wits \< -2 mm) * Presence of anterior crossbite or edge-to-edge incisal relationship Exclusion Criteria * Severe craniofacial asymmetry * Evidence of active condylar growth * Previous orthodontic treatment * Craniofacial malformations or syndromes * Systemic diseases or medications affecting growth or bone metabolism

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Conditions

The condition(s) this trial relates to.

autosomal dominant prognathism

As listed by the trial registrant

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

Skeletal class III malocclusion

How to take part

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

  1. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  2. 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.

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