Hydroxyapatite toothpaste and mouthwash to prevent white spot lesions during orthodontic treatment
Official title: Effectiveness of a Hydroxyapatite-Containing Toothpaste Versus Mouthwash in Preventing White-Spot Lesions During Fixed-Appliance Orthodontic Treatment: A Randomized Clinical Trial
Run by University of Baghdad · NCT07325643 · Data updated 2026-11-12
This test will see if using hydroxyapatite toothpaste or mouthwash can prevent white spot lesions in people wearing braces.
Quick facts
| Study type | Interventional |
|---|---|
| Sex | All |
| Enrollment | 75 (estimated) |
| Sponsor | University of Baghdad Academic / other |
| Locations | 1 site (Baghdad) |
| Status | Recruiting |
| Started | November 20, 2025 |
| Main results expected | November 20, 2026 |
| Study ends | December 20, 2026 |
| Registry record updated | January 8, 2026 |
| Trial ID | NCT07325643 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are patients beginning comprehensive fixed-appliance orthodontic treatment with full permanent dentition, good oral hygiene, normal salivary flow and buffer capacity, and no existing white spot lesions.
✕Probably not a fit
Patients who already have white spot lesions, poor oral hygiene, recent bleaching or topical fluoridation, significant dental restorations on the study teeth, or certain systemic conditions are unlikely to benefit from this prevention-focused intervention.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized three-group study will enroll 75 orthodontic patients without existing white spot lesions and follow them throughout their fixed-appliance treatment. Participants will be assigned to hydroxyapatite toothpaste with placebo rinse, fluoride toothpaste with hydroxyapatite rinse, or fluoride toothpaste with placebo rinse. Outcomes include Diagnodent Pen readings, Gorlick index, digital photos, gingival bleeding and plaque indices, and salivary pH measured over the course of treatment. The interventions are low-risk topical products and the study is conducted at the University of Baghdad College of Dentistry under ethical approval.
Why it matters
Potential benefit: If successful, hydroxyapatite products could reduce the new development of white spot lesions around orthodontic brackets and help preserve tooth enamel and appearance.
How similar studies have gone: Previous research has shown hydroxyapatite can help remineralize enamel and reduce sensitivity, but evidence specifically for preventing white spot lesions during orthodontic treatment is limited and mixed.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: All included participants will be drawn from those who will receive comprehensive orthodontic treatment and fulfill the following inclusion criteria: 1. Complete permanent dentition up to the first premolar, with no intended extractions in orthodontic treatment plan. 2. Good overall health. 3. Good oral hygiene: full-mouth plaque score \< 20%. 4. No bleeding upon probing after 30 seconds. 5. Discontinuous band of plaque at the gingival margin. 6. Normal stimulated salivary flow rate. 7. Normal buffer capacity (final pH between 6.0 and 7.0) - Exclusion Criteria: * 1\. History of previous orthodontic treatment. 2. Bleaching or topical fluoridation within the last six months. 3. Severely rotated any of the study teeth (limiting the appearance of facial surfaces). 4\. Visible signs of caries, fluorosis, hypocalcification, or other developmental defects. 5. Restoration on the labial surface of the study teeth. 6. Systemic or endocrine conditions (e.g., cardiac pacemakers, diabetes mellitus). 7\. Craniofacial anomalies and clefts.
Where it's running
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University of Baghdad - College of Dentistry / Orthodontic Clinic
Baghdad, Iraq Recruiting
Study contacts
- Study coordinator: Heba Tahseen Almasri, BSc, MSc (candidate)
- Email: heba53104@gmail.com
- Phone: 009647810440125
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.