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New bracket design tested to speed up tooth movement in braces

NCT ID NCT06481761

Knowledge-focused Sponsor: Cairo 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study tested whether double-slot brackets move canine teeth faster than standard single-slot brackets after premolar extraction. Thirty patients were randomly assigned to one bracket type, and tooth movement was tracked monthly using digital models and 3D scans. The goal is to see if the double-slot design offers a more controlled or quicker retraction.

What this could mean

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

Active substance
Double-slot brackets and single-slot brackets (orthodontic devices)
What this could lead to
If double-slot brackets prove faster or more controlled, orthodontists may adopt them to shorten treatment time for canine retraction.
What could go wrong
This is a small, completed trial with only 30 participants, so results may not apply to all patients. The difference between bracket types may be small or not clinically meaningful.

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

30 people

The number who actually took part.

Started

Oct 2024

Finished

Jan 2025

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 26 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: * Good oral hygiene. * Adult Male or Female patients with an age range of 16-26 years old. * Full set of permanent dentition(excluding third molar). * Any kind of malocclusion requiring first premolar extraction and canine retraction. * Patients with type/pattern of crowding that allows leveling and alignment before premolar extraction Exclusion Criteria: * History of previous orthodontic treatment. * Craniofacial deformity. * Systematic disease or administrating drugs affecting tooth movement. * Poor oral health.

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As listed by the trial registrant

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

Rate of canine retraction

Contacts and locations

Locations

  • Cairo University

    Giza, 12613, Egypt