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New 3D-Printed aligners take on traditional trays in Teeth-Straightening showdown

NCT ID NCT07431333

Symptom relief Sponsor: British University In Egypt 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 two kinds of shape-memory aligners—one directly 3D-printed and one made by thermoforming—to see which straightens crowded lower front teeth faster and more accurately. Sixteen adults with mild to moderate crowding took part. The main goal was to measure how much crowding was relieved over the treatment time. The study also looked at how well patients followed instructions and how stable the aligner color stayed.

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

16 people

The number who actually took part.

Started

Sep 2022

Finished

Mar 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

18 years and older

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: * Crowding in lower anterior teeth ranging from 4 to 6 mm. * Participants whose treatment plan need lower anterior teeth alignment. * Presence of permanent teeth except for lower premolar extraction performed for orthodontic purposes. * Participants who need orthodontic treatment after relapse in lower anterior teeth take place one-year post retention. Exclusion Criteria: * Active systemic diseases that affect tooth movement (e.g. osteoporosis, bisphosphonate therapy, etc...). * Patients with biting habits (clinching, bruxism, etc…) * Patients with bad oral hygiene or high caries index or periodontal inflammation or gingival recession. * Presence of active labial caries or class V restorations or enamel hypoplasia in lower anterior teeth.

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As listed by the trial registrant

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

Crowding of anterior mandibular teeth

Contacts and locations

Locations

  • British university in egypt

    Cairo, Egypt

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