Effectiveness of Disinfectants on Antimicrobial and Physical Properties of Dental Impression Materials

Abstract

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Investigation of Acrylic Resin Disinfection Using Chemicals and Ultrasound

“…In the current study Minuten was shown to be as effective as MD520 and ultrasound on both C. albicans and S. oralis spp. This is in contrast to previous research where it had a limited spectrum of activity and took longer for disinfection than other chemical disinfectants . Alcohol‐based disinfectants exhibited a good degree of effectiveness, with alginate being able to eradicate 99.27% and 100% of the microorganisms present …”

“…Minuten and ultrasound for 15 seconds were not evaluated. Minuten was shown to be less effective than MD520 in a previous study, while the ultrasound applied for 15 seconds was not as effective as the longer application of ultrasound. Specimens without disinfection were used as controls.…”

“…Impressions of the ten volunteers were obtained in alginate and disinfected with MD520 using the spraying technique via the Durr Hygojet (Durr Dental, Bietigheim‐Bissingen, Germany). This method was used, because in a previous study this disinfection method was effective in disinfecting alginate . The impressions were cast immediately to avoid material shrinkage and surface changes.…”

“…In contrast, other studies demonstrated a limited spectrum of effectiveness, which improved with time . Minuten was less effective than MD520 for disinfection of alginate and silicone impression materials; however, it reduced the shrinkage of alginate compared to the un‐disinfected control …”

Análise da eficácia antimicrobiana do ácido peracético na desinfecção de moldes de hidrocoloide irreversível

“…Durante o procedimento de moldagem, o hidrocoloide irreversível entra em contato direto com a microbiota oral do paciente e, após reação de presa, agrega microrganismos presentes no meio bucal [1][2][3] em quantidade superior a outros materiais de moldagem, como silicones 4 . Dessa forma, é imprescindível a realização da desinfecção de moldes de hidrocoloide irreversível para evitar a transmissão de doenças infecciosas 5 .…”