Streptococcus mutans in denture stomatitis patients under antifungal therapy
AbstractPurpose: To assess the number of Streptococcus mutans in saliva of patients with denture stomatitis before and after antifungal therapy. Methods: After examining 93 patients, 47 were selected for fungal test. Then, from this sample, thirty patients were selected: 15 with positive and 15 with negative diagnosis for candidiasis that were evaluated for S. mutans counting, salivary flow and buffer capacity evaluation. Oral hygiene and prosthesis hygiene, period using prosthesis, lesion type and salivary data were related with clinical laboratorial characteristics of the patients with Candida. Results: The most frequent lesions were type I (43.5%) and II (53.5%). The amount of S. mutans was six times higher in patients with candidiasis and it was associated with low salivary flow and poor oral hygiene. After therapy, a reduction of S. mutans was verified particularly in patients with normal salivary flow. The values ranged from 0.01 to 3.88 x 104 cfu/mL. Conclusion: The data suggest that Streptococcus spp collaborates with Candida spp in the etiology and pathogenesis of denture stomatitis. The use of oral antimicrobial agents may provide a beneficial effect for denture stomatitis patients that are under antifungal therapy and that have poor oral hygiene and unfavorable salivary parameters.
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