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Gum health showdown: fixed vs removable retainers after braces

NCT ID NCT07650630

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

What the study statuses mean

This study's is highlighted.

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 This study
Running, but no longer taking on new participants.
Completed
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compares how fixed and removable retainers affect gum health in people who just finished braces. 46 participants with all lower front teeth will be randomly assigned to one retainer type. Researchers will measure gum pockets, bleeding, and plaque to see which retainer leads to healthier gums.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If this trial succeeds, it could help dentists choose the best retainer type to keep gums healthy after braces.
What could go wrong
This is a small, early-stage study with only 46 people. Results may not apply to everyone, and it only looks at short-term gum health, not long-term tooth stability.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

46 people

The number who actually took part.

Started

Nov 2025

Expected to finish

Dec 2027

An estimate. End dates often move.

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.

Ages

12 years and older

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: * Minimal age of twelve years. * Presence of all mandibular anterior teeth from canine to canine. * Completion of orthodontic multi-bracket treatment with the requirement of retention of the mandibular anterior teeth. * Periodontal screening index ≤ 2 \[18\]. * Participation in all study visits. Exclusion Criteria: * Systemic disease potentially affecting the study outcome. * Conditions requiring antibiotic prophylaxis for clinical measurements that trigger transitory bacteremia. * Pregnant females. * Chronic use of medications affecting the study outcome. * Patients with active periodontal disease

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As listed by the trial registrant

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

Orthodontic Periodontal health Retainer

Contacts and locations

Locations

  • Faculty of Dentistry Cairo university

    Cairo, Egypt

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