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Palate expanders may widen Kids' airways, study finds

NCT ID NCT07456917

Knowledge-focused Sponsor: Medical University of Silesia 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at whether two types of orthodontic expanders (BREA and MFT) can change airway size, hyoid bone position, and palate shape in 79 children aged 4 to 12. Fifty-five children received expansion treatment, while 24 untreated children served as controls. Results showed that expansion increased some airway measurements and widened the palate, but the study was retrospective and small, so more research is needed to know if these changes lead to real health benefits.

What this could mean

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

Active substance
orthodontic expansion appliances (BREA and MFT)
What this could lead to
If confirmed, this could point toward using orthodontic expansion to improve airway dimensions in children with narrow upper jaws.
What could go wrong
This is a small, retrospective study with no long-term follow-up. The airway changes seen may not translate to meaningful health benefits, and further prospective studies are needed.

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

79 people

The number who actually took part.

Started

Feb 2020

Finished

Feb 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

4 to 12 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: Children aged 4 to 12 years at baseline. Patients in primary or mixed dentition stage. Availability of complete orthodontic diagnostic records at two time points, including: lateral cephalometric radiograph posteroanterior cephalometric radiograph dental models suitable for digital analysis For treated groups: orthodontic expansion performed with either BREA or MFT according to routine clinical indications. For control group: patients who underwent full orthodontic diagnostics but did not initiate orthodontic treatment during the observation period. Good general health without systemic conditions known to significantly affect craniofacial growth. Exclusion Criteria: Presence of cleft lip and/or palate. Previous orthodontic treatment prior to baseline records. Presence of generalized spacing or diastema that could affect transverse measurements. Incomplete or missing radiographic records. Poor quality radiographs preventing reliable cephalometric analysis. Poor quality dental models, including artifacts on the palatal surface or indistinct gingival margins. Craniofacial syndromes or conditions known to significantly alter craniofacial development.

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As listed by the trial registrant

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

Hyoid bone positional changes Maxillary constriction in growing children Orthodontic expansion effects Transverse maxillary deficiency Upper airway morphology in children

Contacts and locations

Locations

  • Silesian Medical University

    Zabrze, Poland

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