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Clear aligners vs. braces: which is better for crowded teeth?

NCT ID NCT07090746

Symptom relief 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 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares clear aligners to traditional braces for treating mild to moderate dental crowding in adults with a normal jaw relationship. Twenty-four participants will be randomly assigned to one of the two treatments. The main goal is to see how each method affects the bone around the teeth and the height of that bone.

What this could mean

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

Active substance
Clear aligner and fixed orthodontic appliance
What this could lead to
If clear aligners work as well as braces, patients may have a more comfortable and less visible option for fixing crowded teeth.
What could go wrong
This is a small, early-stage study with only 24 people, so results may not apply to everyone. Both treatments can cause temporary discomfort or root shortening.

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

Dec 2023

Expected to finish

Jan 2026

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

18 to 22 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: * Complete permanent dentition. * Angle Class I malocclusion cases with mild to moderate crowding (2-6 mm) that can be resolved by dental expansion and interproximal reduction (IPR). * Good oral hygiene. Exclusion Criteria: * Bad oral hygiene. * Previous orthodontic treatment. * Periodontal disease and previous periodontal surgery procedures. * Systemic diseases and/or craniofacial syndromes.

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As listed by the trial registrant

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

Skeletal class I non-extraction patients with dental crowding

Contacts and locations

Locations

  • Faculty of dentistry mansoura university

    Al Mansurah, Egypt