Comparing 3D Printed and Conventional Metal Retainers

Comparison of Perforated 3D Printed Metal Fixed Mandibular Retainer Versus Conventional Fixed Bonded Retainer A Randomized Clinical Trial

NA · Cairo University · NCT06851897

This study is testing whether 3D printed metal retainers work better and last longer than traditional metal retainers for people who have had braces.

Quick facts

PhaseNA
Study typeInterventional
Enrollment64 (estimated)
Ages15 Years to 35 Years
SexAll
SponsorCairo University (other)
Locations1 site (Giza)
Trial IDNCT06851897 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of perforated 3D printed metal fixed retainers compared to traditional metal fixed retainers in orthodontic patients. It aims to address conflicting evidence regarding bond failure rates of titanium retainers and explore the potential benefits of using CAD-CAM technology in creating custom retainers. Participants will be monitored for bond integrity and overall satisfaction with the retainers over a specified period. The study seeks to provide insights into the durability and performance of innovative orthodontic materials.

Who should consider this trial

Good fit: Ideal candidates include patients who have completed orthodontic treatment and have specific dental criteria, such as having four permanent mandibular incisors and two permanent mandibular canines.

Not a fit: Patients who do not require fixed mandibular retention or have dental issues such as periodontal disease or enamel hypoplasia may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved retention solutions for orthodontic patients, enhancing treatment outcomes and patient satisfaction.

How similar studies have performed: While there is limited evidence on the effectiveness of 3D printed retainers, the use of CAD-CAM technology in orthodontics has shown promise in other applications, suggesting potential for success in this area.

Eligibility criteria

Show full inclusion / exclusion 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 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.

Where this trial is running

Giza

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Bond, Pair

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.