Absorption capacity and toxicity of paper points after sterilization (original) (raw)

Objective: To evaluate the influence of the sterilization process on paper cones as regards their absorption capacity, and consequently, root canal drying, in addition to the possible release of any antimicrobial or cytotoxic product. Methods: The cones used were of three of the brands found on the Brazilian market Dentsply (Dentsply Indústria e Comércio Ltda., Petrópolis, Brazil), Endopoints (Endopoints Indústria e Comércio Ltda., Paraíba do Sul, Brazil) and Tanari (Tanari Industrial Ltda., São Paulo, Brazil). To evaluate the absorption capacity, the cones were submitted to four sterilization cycles, and the modified Holland technique was performed. The antimicrobial/cytotoxic capacity was verified by means of depositing the sterilized cones in Petri dishes containing Miller-Hinton Agar and Blood Agar, seeded with S.aureus and E. coli. Results: The Dentsply (Dentsply Indústria e Comércio Ltda., Petrópolis, Brazil) and Tanari (Tanari Industrial Ltda., São Paulo, Brazil)cones present...