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New dental device aims to fix underbite without surgery

NCT ID NCT07581990

Disease control Sponsor: Can Tho University of Medicine and Pharmacy 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Updated 1 time

Summary

This study tested a special dental appliance to correct underbite (Class III malocclusion) in 36 children aged 7 to 12. The device combines a fixed inclined plane on the lower front teeth with rotated brackets on the upper front teeth to encourage proper jaw growth. After 6 months, success was measured by improved bite alignment and jaw position using X-rays.

What this could mean

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

Active substance
Inclined plane appliance combined with variable bracket placement
What this could lead to
If successful, this approach could offer a non-surgical way to correct underbite in children, improving bite and facial appearance.
What could go wrong
This is a small, early study with only 36 participants and no control group. Results may not apply to all children, and the device may not work for everyone.

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

36 people

The number who actually took part.

Started

Jul 2025

Finished

Apr 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

7 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: * Age: Patients between 7 and 12 years old * Skeletal Maturity: Cervical vertebral maturation (CVM) stages CS1, CS2, or CS3 * Diagnosis: Diagnosed with skeletal Class III malocclusion on lateral cephalometric radiographs, characterized by an ANB angle \< 0° and a Wits appraisal \< -2mm * Patients and their legal guardians provide informed consent to participate in the study Exclusion Criteria: * Dental Characteristics: Absence of anterior crossbite * Eruption Status: Permanent maxillary central incisors have not yet erupted * Molar Relationship: Molar relationship is not Class III according to Edward H. Angle's classification * Skeletal/Growth Issues: Excessive mandibular growth * Congenital Conditions: Congenitally missing maxillary first molars or presence of cleft lip and/or palate

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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.

Class III malocclusion Facemask Inclined plane appliance

Contacts and locations

Locations

  • Department of Orthodontics, Ho Chi Minh City Dental Hospital

    Ho Chi Minh City, Vietnam

More trials for these conditions

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