Comparison of 3D Printed Metal Fixed Retainer Versus Conventional Fixed Bonded Retainer (NCT07538869) | Clinical Trial Compass
CompletedNot Applicable
Comparison of 3D Printed Metal Fixed Retainer Versus Conventional Fixed Bonded Retainer
Egypt64 participantsStarted 2025-04-01
Plain-language 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.
Who can participate
Age range
13 Years – 35 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Age ≥ 13 years
* Complete permanent dentition up to second molars
* Completed Class I orthodontic treatment and requiring a mandibular fixed -bonded retainer
* No sex predilection.
Exclusion Criteria:
* Enamel defects that may compromise bonding (e.g., hypoplasia, fluorosis)
* Poor oral hygiene
* Active dental or periodontal pathology at the site of intervention
* Lingual restorations on mandibular anterior teeth
* Poor compliance or inability to attend follow-up visits
* Psychological or medical conditions that may interfere with study participation
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
bond failure
Timeframe: immediate (within 24 hours after bonding) and at 3, 6, 9, and 12 months