Introduction. The mouthwash Dentofresh® produced by Phytopharm Kleka SA, intended for adults and children over the age of 6, is a prophylactic preparation. Using the mouthwash after having brushed the teeth has a preventive and healing influence on the hard tissues of teeth and gingiva. The mouthwash contains: eucalyptus, mint, thyme and sage oils, which show anti-inflammatory and antimicrobial activity. Aim. The aim of the study was to evaluate the effectiveness of Dentofresh® against strains of yeast-like fungi from the genus Candida. Material and methods. The study was conducted on 15 strains of yeast-like fungi from the genus Candida isolated from infections, and five reference strains. The fungicidal activity of the preparation (MFC – Minimal Fungicidal Concentration) against the strains of yeast-like fungi at the concentration recommended by its producer was evaluated. Results. Dentofresh® exhibited great fungicidal activity at the concentration recommended by the producer as quickly as 15 minutes after it was applied (against 87% of the strains), while after 30 minutes, all the tested strains of yeast-like fungi were destroyed. Conclusions. The preparation was effective against the genera of yeast-like fungi which are usually resistant to common antifungal medicines
