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Braces vs clear aligners: which straightens teeth faster?

NCT ID NCT07638397

Knowledge-focused Sponsor: University of Baghdad 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jul 08, 2026 · Updated 4 times

Summary

This study will compare how long it takes to straighten teeth using two different orthodontic systems: self-ligating brackets (a type of braces) and clear aligners. The trial will include 42 people aged 16 to 32 with moderate dental crowding. Researchers will also look at pain levels, changes in dental arch shape, and overall treatment quality.

What this could mean

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

Active substance
self-ligating bracket system (Damon Ultima) and clear aligner system
What this could lead to
If successful, this study could help orthodontists choose the faster or more efficient method for treating moderate dental crowding.
What could go wrong
This is a small, early-stage trial with only 42 participants, so results may not apply to everyone. It compares two existing treatments, so no breakthrough is expected.

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 42 people

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

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

Aug 2028

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

16 to 32 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. Good oral and general health; no systemic conditions affecting bone metabolism or pain perception. 2. Age range between 16-32 years. 3. Presence of full permanent dentition except the third molars. 4. Class I canine and molar relationship moderate crowding in both arches (6-8 mm) requiring fixed orthodontic treatment. 5. Without previous orthodontic treatment/ functional appliances. Exclusion Criteria: 1. Patients will be excluded from enrollment if they have a substantial skeletal discrepancy necessitating orthognathic surgery. 2. Patient with class Ⅱ , Ⅲ malocclusion. 3. Patient with external or internal root resorption. 4. Patients with poor oral hygiene or active periodontal disease. 5. 90o or more degree of tooth rotation.

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Conditions

The condition(s) this trial relates to.

Crowding

As listed by the trial registrant

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

Angle class I maloclussion Dental crowding

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

  • University of Baghdad

    Baghdad, Al-Rusafa, 0964, Iraq

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