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3D printed retainers could beat Old-School wires in new trial

NCT ID NCT07552155

Knowledge-focused Sponsor: Raghda Alaa 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 a new 3D printed resin retainer to the standard wire retainer used after braces. Sixty-four patients who finished orthodontic treatment will get one of the two types. The main goal is to see which type breaks less often and takes less time for the dentist to put in.

What this could mean

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

Active substance
3D printed resin fixed retainer (device) and conventional fixed bonded retainer (device)
What this could lead to
If successful, this could show that 3D printed retainers are more reliable and faster to place than traditional ones, improving orthodontic care.
What could go wrong
This is a small, early-stage trial with only 64 participants, so results may not apply to everyone. The 3D printed material might have unknown long-term durability or safety issues.

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

64 people

The number who actually took part.

Started

Feb 2025

Expected to finish

Jul 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

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: * Inclusion Criteria: * Patients with properly finished orthodontic treatment. * No sex predilection. * The presence of 4 permanent mandibular incisors and 2 permanent mandibular canines. * No active caries, restorations, fractures, or periodontal disease of previously mentioned teeth * Patients with good oral Exclusion Criteria: * Patients with no need of fixed mandibular retention. * Enamel hypoplasia or hypocalcification of mandibular anterior teeth. * Abnormal morphology of mandibular anterior teeth * Periodontal disease that contraindicates fixed orthodontic retention. * No or poor patient's compliance \& bad oral hygiene. * Psychological problems.

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Conditions

The condition(s) this trial relates to.

Pair Bond

As listed by the trial registrant

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

Bond pair

Contacts and locations

Locations

  • Faculty of dentistry

    Cairo, Egypt

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