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New study tests two dental devices to fix bite problems without surgery

NCT ID NCT06308640

Knowledge-focused Sponsor: Tanta University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Aug 05, 2026 · Updated 2 times

Summary

This study compares two dental devices that use small bone screws to move upper molars backward in people with a specific bite problem called Class II malocclusion. Twenty Egyptian participants will receive one of the two devices, and 3D X-rays will measure how well the teeth move. The goal is to see which device works better and causes fewer unwanted tooth movements.

What this could mean

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

Active substance
Fast Back Rapid Distalizer and Modified Leaf Spring Self-Activated Expander (dental devices)
What this could lead to
If successful, this study could show which device is more effective for correcting bite problems without tooth extraction, improving orthodontic treatment options.
What could go wrong
This is a small, early-stage study with only 20 participants, so results may not apply to everyone. The devices may not work as expected or could cause discomfort.

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

20 people

The number who actually took part.

Started

Mar 2024

Finished

Jul 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

14 to 18 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: * Patient with full permanent dentition. * Good oral hygiene. * Class II molar relationship. * Non-extraction treatment plan with molar distalization. * Low angle cases. * medical problems or active periodontal disease. Exclusion Criteria: * The patients had received any orthodontic treatment. * Crowding in the mandibular arch. * Medical problems or active periodontal disease.

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Conditions

The condition(s) this trial relates to.

Overbite

As listed by the trial registrant

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

Class II malocclusion

Contacts and locations

Locations

  • Faculty of Dentistry

    Tanta, Gharbia Governorate, 6620010, Egypt

More trials for these conditions

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