Avaliação da eficácia de agentes desinfetantes na descontaminação de escovas dentais: estudo in vitro

Introduction and Objectives: Oral hygiene is performed through mechanical brushing use of dental floss. In contact with the mouth, toothbrush becomes contaminated. The ways they are stored, washed, dried can also influence to contamination. This study evaluated effectiveness different chemical disinfectants in disinfecting used toothbrushes. Materials Methods: 30 toothbrushes, from individuals, were collected after (more than days), divided into three groups: G1-disinfection 0.12% chlorhexidine; G2-disinfection 0.2% peracetic acid; and, G3-disinfection 3% hydrogen peroxide, immersion times 10 20 minutes. Prior disinfection, brushes cultured trycasein soy broth (TSB) (48h/37°C) then plated on Mannitol, Sabouraud MacConkey agar culture media. They disinfected, randomly groups G1, G2 G3, for minutes, washed sterilized water incubated again TSB (48h/37°C). After incubation, cultures mentioned Results: acid disinfectant was most efficient, followed by chlorhexidine peroxide. Conclusion: Peracetic not a product easily accessible general population, therefore, be recommended, according results obtained this vitro evaluation.