CompletedNot Applicable

Stability of Maxillary Anterior Teeth After Two Years of Retention in Adolescents Comparing Two Bonded and a Vacuum-formed Retainer

90 participantsStarted 2013-04

Plain-language summary

After orthodontic treatment 3 different retention devices will be compared.Thirty patients in each group; Group 1) Bonded retainer 13-23, Group 2)Bonded retainer 12-22 and Group 3) Vacuum-formed retainer covering all erupted teeth in the maxilla. Retention capacity between these three devices will be compared after 2 years of retention by measuring Contact Point displacements (CPD) between 6 anterior teeth and sum of 5 anterior CPDs called Little´s Irregularity Index (LII).

Who can participate

Age range

11 Years – 19 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: * Young children age between 11 to 19 years old undergone orthodontic treatment. Exclusion Criteria: * Syndrome patients * Skeletal discrepancy * missing maxillary anterior teeth * Adults

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

Changes in LII (sum of 5 contact point discrepancy)among 6 maxillary front teeth

Timeframe: 2 years after retention device in place

Changes in CPD

Timeframe: 2 years after retention device in place

Trial details

NCT IDNCT04616755

SponsorKronoberg County Council

Sponsor typeOTHER_GOV

Study typeINTERVENTIONAL

Primary completion2018-08

View on ClinicalTrials.gov More Orthodontic Appliance Complication trials