3D printed retainers tested against traditional wires in new study
NCT ID NCT06851897
First seen Jun 27, 2026 ยท Last updated Jun 27, 2026
Summary
This study compares a new 3D printed metal retainer to the standard bonded wire retainer for the lower front teeth. Researchers want to see which one breaks less, stays attached better, and keeps teeth straight after braces. 64 people who finished orthodontic treatment will be followed for 12 months.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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
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About 64 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2025
- Expected to finish
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Jun 2026
An estimate. End dates often move.
- Lead sponsor
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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
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15 to 35 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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: * 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 hygiene. 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.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Cairo University
Giza, Egypt
More trials for these conditions
Other studies related to the condition(s) this trial covers.