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Ultrasound reveals hidden gum changes from retainers

NCT ID NCT07414264

Knowledge-focused Sponsor: Selcuk University Source: ClinicalTrials.gov ↗

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at 53 people who had braces and then got a fixed lingual retainer (a wire glued behind the teeth). Researchers used ultrasound to measure gum thickness, bone levels, and other gum health signs at the start, 3 months, and 6 months after the retainer was placed. The goal was to see if the retainer causes any changes to the gums or bone over time.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

53 people

The number who actually took part.

Started

Oct 2024

Finished

Oct 2025

Lead sponsor

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.

Who is studied

The study population consisted of individuals who had completed fixed orthodontic treatment at the Department of Orthodontics, Selçuk University Faculty of Dentistry. All participants were systemically healthy, non-smoking young adults aged between 16 and 24 years, with good oral hygiene and no active periodontal disease. Each subject had maxillary and/or mandibular anterior teeth bonded with fixed retainers in passive condition. A total of 53 individuals (636 anterior teeth) were evaluated and categorized into four subgroups according to the inclination of anterior teeth: maxillary retroclination, maxillary proclination, mandibular retroclination, and mandibular proclination.

Ages

16 to 24 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show 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: * Inclusion Criteria: * Patients who have completed comprehensive orthodontic treatment with fixed appliances. * Patients with a fixed mandibular or maxillary lingual retainer in place for at least 6 months. * Age between 18 and 40 years. * Good general health with no systemic conditions affecting periodontal tissues. * Non-smokers or light smokers (\<5 cigarettes/day). * Presence of all anterior teeth without significant restorations or prosthetic crowns. Exclusion Criteria: * History of periodontal surgery or advanced periodontitis prior to orthodontic treatment. * Systemic diseases or medications affecting periodontal health (e.g., diabetes, immunosuppressive therapy). * Pregnancy or lactation. * Poor oral hygiene or non-compliance with oral hygiene instructions. * Teeth with caries, large restorations, or endodontic treatment in the area of interest. * Patients with removable retainers or interrupted use of fixed retainers.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Fixed orthodontic retainer

Contacts and locations

Locations

  • Selcuk University Faculty of Dentistry

    Konya, Selçuklu, 42060, Turkey (Türkiye)

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