Interdental Hygiene Methods in Young Adults (NCT06848790) | Clinical Trial Compass
CompletedNot Applicable
Interdental Hygiene Methods in Young Adults
France51 participantsStarted 2025-09-17
Plain-language summary
Oral health is essential for overall well-being and systemic health. A key factor in preserving this health is maintaining the balance of the interdental microbiota, which involves regulating the quantity of pathogenic bacteria in interdental spaces (IS). These IS represent a unique ecological niche where the body has limited specific defense mechanisms, making them vulnerable to infections.
In adults, the colonization of interdental spaces by pathogenic bacteria increases the risk of periodontal diseases, which are themselves associated with non-communicable diseases such as cardiovascular diseases, diabetes, and certain types of cancer.
Preventing interdental microbiota dysbiosis from a young age is therefore a priority to maintain quality oral health and contribute to good systemic health throughout life. However, conventional brushing techniques cover only accessible tooth surfaces and cannot reach the interdental spaces. Currently, the use of interdental brushes (IDBs) is recognized as the most effective method for interdental hygiene. There are various types of IDBs, differing in several aspects that influence their effectiveness and usability. The main differences relate to their shape, size, and calibration using an interdental probe or not, allowing adaptation to different interdental space sizes. To date, only one study has demonstrated the effectiveness of daily calibrated interdental brush use in reducing dysbiosis and interdental inflammation among young adults. However, no research has yet been conducted to compare the effectiveness of the various types of IDBs available on the market (calibrated versus non-calibrated).
Who can participate
Age range
18 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:
* Person between 18 and 30 years old
* Person who has given free, informed, express written consent
* Person affiliated to a French social security system
* Person living or working in Lyon or the Lyon conurbation served by public transport (TCL)
Exclusion Criteria:
* Person with a smoking addiction
* Person participating in another study related to oral hygiene
* Patients at high risk of infective endocarditis
* Person with chronic pathologies
* Person having taken antibiotic treatment during the month preceding the start of the study
* Pregnant, parturient or breastfeeding woman
* Persons deprived of liberty by a judicial or administrative decision
* People receiving psychiatric care
* Persons admitted to a health or social establishment for purposes other than research
* Adults subject to a legal protection measure (guardianship, curatorship)
* Persons not affiliated to a social security scheme or beneficiaries of a similar scheme
* Person with fewer than 20 natural teeth
* Person performing interdental hygiene and/or daily mouthwashes.
* Person wearing orthodontic appliance
* Person with periodontal disease (stage ≥ II periodontal lesions according to the Chicago 2017 classification (i.e. PD ≥ 4 mm, and/or CAL ≥ 4 mm) and/or generalized (\>30% of sites )), active caries or during dental care
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
Interdental bleeding at month 3 (in percentage)
Timeframe: Baseline (T0), 3 months after baseline (T3)