Clinical Trial Evaluating Chlorine e6 Derivative-mediated Antimicrobial Photodynamic Therapy as a Treatment for Denture Stomatitis

A Randomized Clinical Trial Evaluating Chlorine e6 Derivative-mediated Antimicrobial Photodynamic Therapy as a Treatment for Denture Stomatitis

Objective: This randomized clinical trial assessed antimicrobial Photodynamic Therapy (aPDT) mediated by Photodithazine (PDZ) to treat patients with denture stomatitis (DS). Methodologies: Patients with DS were randomly assigned to the groups: aPDT (n=30) and nystatin (NYS, n=35). aPDT patients received 6 aPDT sessions, three times a week for 15 days, which involved PDZ (200 mg/L) topical application (20 min) on the palate and upper denture, followed by light emitting diode (LED) illumination (660 nm, 50 J/cm²). NYS patients were instructed to rinse one dropper of this medication for one minute, four times a day, for 15 days. Microbiological collections of dentures and palates were performed and cultured on blood agar and CHROMAgar Candida. Microbial viability was determined, and photographs of the palates were taken for clinical evaluation. Data were analyzed by Repeated Measure Linear Model and Bonferroni (p≤0.05).

Inclusion Criteria:

• Edentulous denture wearers clinically diagnosed with denture stomatitis.

Exclusion Criteria:

• patients who received antibiotics, antifungal or steroids in the past 3 months prior to the beginning of the research, women in the reproductive phase, patients who had worn the same denture in the past 10 years, diabetics, anemics, immunocompromised and under cancer treatment.