Denture disinfection by microwave irradiation: A randomized clinical study

摘要: Abstract Objective This study evaluated the clinical effectiveness of two exposure times microwave irradiation on disinfection complete dentures. Methods Biofilm samples were collected from dentures 30 patients, who randomly divided into experimental groups 15 subjects each: Group 1—patients had their maxillary denture microwaved for 3 min (650 W); 2—patients 2 min (650 W). Denture biofilm taken with swabs, before (left side surfaces) and after (right irradiation. All microbial material was plated selective media Candida spp., Staphylococcus mutans streptococci a non-selective media. After incubation (48 h/37 °C), number colony-forming units (cfu/mL) counted. Microorganisms which grew identified using biochemical methods. The data statistically analyzed by Kruskal–Wallis test, followed Dunn's post-test ( α  = 0.05). Results Microwave (Group 1) resulted in sterilization all evaluated. 2), significant decrease spp. P  = 0.0062),  = 0.0178),  = 0.0047) non-identified species albicans , non-aureus Staphylococci Streptococcus . Conclusion may be potential treatment to prevent cross-contamination.