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3D-Printed braces could fix underbites without surgery

NCT ID NCT07340242

Disease control Sponsor: Mansoura University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests two types of 3D-printed braces to correct underbites in teens aged 11-14. Sixty participants will be split into three groups: one getting a MARA appliance, one getting a fixed twin block, and one getting no treatment. Researchers will measure changes in jaw and teeth position over time.

What this could mean

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

Active substance
CAD/CAM 3D-printed fixed twin block and MARA appliances
What this could lead to
If successful, this could provide a more comfortable and effective way to correct underbites in teens without surgery.
What could go wrong
This is a small, early-stage trial with only 60 participants, so results may not apply to everyone. The devices may cause discomfort or breakage.

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 60 people

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

Started

Apr 2025

Expected to finish

Apr 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

9 to 14 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: 1. Skeletal Class II malocclusion due to mandibular retrusion. 2. Overjet ≥ 6.0 mm. 3. Normal or low-angle growth pattern. 4. Minimum crowding in the mandibular arch. 5. Undergoing circumpubertal phase of skeletal development (CVMI 2, 3, and 4) Exclusion Criteria: 1. Clinical signs and symptoms of temporomandibular disorder. 2. Systemic disease affecting bone and general growth. 3. Previous orthodontic treatment 4. Cleft lip or palate. 5. Congenital craniofacial deformity. 6. Abnormal oral habits.

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Conditions

The condition(s) this trial relates to.

Micrognathism Overbite

As listed by the trial registrant

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

Class II malocclusion Mandibular deficiency

How to take part

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

  1. The places running it

    1 site. The list below names each one and where it is.

  2. 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 ↗

  3. 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

  • Faculty of dentistry, Mansoura university

    RECRUITING

    Al Mansurah, Dakahlia Governorate, 35516, Egypt

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