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New study tests which dental device moves molars best

NCT ID NCT07038902

Disease control Sponsor: Al-Azhar 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compares two types of dental expanders used to move back molars in people with crowded teeth. One device uses small screws anchored to the bone, while the other relies on the teeth for support. Researchers will use 3D X-rays to measure how much the molars move. The results may help dentists choose the best approach for straightening teeth.

What this could mean

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

Active substance
dental expander (MARPE or RPE)
What this could lead to
If successful, this could help orthodontists choose the best device for moving molars, potentially reducing treatment time or need for extractions.
What could go wrong
This is a small, early-stage study with only 24 participants. Results may not apply to all patients, and the devices may cause discomfort or temporary bite 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

About 24 people

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

Started

Nov 2025

Expected to finish

Dec 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

Children (under 18), adults (18 to 64) and older adults (65 and over)

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: * Presence of permanent dentition * Skeletal Class I * Dental Class II molar relationship with moderate dental crowding * Crowding \>4mm * Good oral hygiene * Healthy periodontal condition Exclusion Criteria: * Presence of craniofacial syndromes or cleft palate * History of previous orthodontic treatment * Poor oral hygiene or active periodontal disease * Contraindications to CBCT imaging (e.g., pregnancy, inability to remain still during the scan)

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Conditions

The condition(s) this trial relates to.

Crowding Malocclusion

As listed by the trial registrant

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

Crowding Malocclusion, class I/II Maxillary first molar distalization

Contacts and locations

Locations

  • Department of Orthodontics, Faculty of Dental Medicine, Al-Azhar University, Assiut branch.

    Asyut, Egypt

More trials for these conditions

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