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Jaw expansion may improve muscle balance in kids

NCT ID NCT05820438

Knowledge-focused Sponsor: University of Pavia 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at 34 children with a narrow upper jaw (maxillary hypoplasia) who needed a rapid palatal expander. Researchers measured the electrical activity of chewing muscles before treatment, right after expansion, and 6 months later. The goal was to see if correcting the jaw alignment also improves muscle symmetry and function.

What this could mean

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

What this could lead to
If successful, this study could show that correcting a narrow upper jaw with a rapid expander improves jaw muscle function and symmetry in children.
What could go wrong
This is a small, completed observational study with only 34 participants. It measures muscle activity, not long-term health outcomes, so results may not lead to direct treatment changes.

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

34 people

The number who actually took part.

Started

Mar 2023

Finished

Mar 2025

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

6 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: * Transverse maxillary constriction * Patients needing maxillary expansion with Rapid Maxillary Expander (RME) Exclusion Criteria: * Systemic diseases or congenital anomalies affecting craniofacial growth or development. * Signs or symptoms of temporomandibular disorder (TMD). * Dental pain. * Previous orthopedic/orthodontic treatment/s.

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Conditions

The condition(s) this trial relates to.

Binder syndrome Retrognathia

As listed by the trial registrant

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

Maxillar hypoplasia

Contacts and locations

Locations

  • Unit of Orthodontics and Pediatric Dentistry - Section of Dentistry - Department of Clinical, Surgical, Diagnostic and Pediatrics - University of Pavia

    Pavia, Lombardy, 27100, Italy