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Comparison of 3D Printed Metal Fixed Retainer Versus Conventional Fixed Bonded Retainer

NCT07538869 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 64

Last updated 2026-04-20

No results posted yet for this study

Summary

Despite the growing diversity of materials used for mandibular fixed retainers, the evidence base remains inconclusive. In particular, conflicting findings have been reported regarding the bond failure of titanium retainers across different evaluation periods, including immediate and 12-month outcomes. Additionally, the emergence of 3D metal-printed retainers has not yet been matched by sufficient clinical evidence, with current data being limited and lacking long-term validation.

Conditions

  • Bond, Pair

Interventions

DEVICE

bar 3d printed metal fixed retainer

Participants will receive a custom-designed 3D-printed metal fixed retainer. The retainer is digitally designed using intraoral scans and fabricated using metal 3D printing technology to achieve a precise fit tailored to each patient.

DEVICE

conventional fixed retainer

Participants will receive a conventional fixed bonded lingual retainer (canine-to-canine) fabricated using multistranded stainless steel wire and bonded using standard clinical procedures.

Sponsors & Collaborators

  • Amany Ibrahim

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
13 Years
Max Age
35 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-04-01
Primary Completion
2025-10-01
Completion
2025-10-01

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07538869 on ClinicalTrials.gov