Photodynamic Therapy for Preventing Recurrent Chromogenic Stains on Deciduous Teeth (NCT07736339) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
Photodynamic Therapy for Preventing Recurrent Chromogenic Stains on Deciduous Teeth
Egypt36 participantsStarted 2026-09-01
Plain-language summary
Chromogenic extrinsic stains are common in children and frequently recur following conventional prophylaxis. Antimicrobial photodynamic therapy (aPDT) using methylene blue activated by red light has demonstrated antimicrobial activity against oral biofilm and may reduce stain recurrence. This pilot controlled clinical trial aims to compare conventional prophylaxis combined with methylene blue-mediated antimicrobial photodynamic therapy with conventional prophylaxis alone for preventing recurrent chromogenic extrinsic stains on deciduous teeth.
Who can participate
Age range
4 Years – 6 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:
* Children aged 4 to 6 years with chromogenic extrinsic stains affecting deciduous teeth.
* Medically healthy children (ASA I or II).
* Children with cooperative behavior suitable for routine dental treatment.
* Parent or legal guardian willing to provide written informed consent.
* Ability to attend all scheduled follow-up visits.
Exclusion Criteria:
* Known allergy or hypersensitivity to methylene blue.
* Photosensitivity disorders or current use of photosensitizing medications.
* Extensive untreated dental caries or acute dental infection requiring emergency treatment.
* Gingival or periodontal conditions that interfere with clinical assessment.
* Iron-associated extrinsic staining.
* Children unable to comply with study procedures or follow-up visits.
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.