Comparison Between Periodontal Effects of Fixed and Vacuum-Formed Retainers (NCT07650630) | Clinical Trial Compass
Active — Not RecruitingNot Applicable
Comparison Between Periodontal Effects of Fixed and Vacuum-Formed Retainers
Egypt46 participantsStarted 2025-11-21
Plain-language summary
One of the most crucial aspects of orthodontic therapy is retention, which is required to prevent orthodontic relapse . There are two main types of retainers, removable retainer which depends on patient compliance to achieve proper results, and fixed retainer which can overcome the problem of patient compliance, but with using it there is higher risk of plaque accumulation and the process of brushing teeth becomes more complex. However, it is not known whether this necessarily leads to worsening of periodontal outcomes . The increasing use of permanent retainers and their requirement for continuous wear highlight the importance of evaluating their impact on the periodontal health but there is conflicting data available right now on how orthodontic retainers affect periodontal diseases
Who can participate
Age range
12 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:
* 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
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
Probing depth
Timeframe: immediately after debonding and after 6 months
2
Bleeding on probing
Timeframe: immediately after debonding and after 6 months
3
gingival recession
Timeframe: immediately after debonding and after 6 months
4
Gingival index
Timeframe: immediately after debonding and after 6 months
5
plaque index
Timeframe: immediately after debonding and after 6 months