title: ["In vitro" analysis of the dentin permeability of the apical third of the root as a function of changes in auxiliary chemicals used in instrumentation].
abstract: We analyzed the possible percentage variations of dentinal penetration of the methylene blue solution in the apical third, in human teeth pulled out, after it's preparation, utilizing files type K-Flex, and five auxiliary chemical substances. Results have shown that there is a significant difference among the percentage of the dye penetration and among the auxiliary chemical substances used for the chemical-mechanic preparation. We can also prove true that, for apical region, the Endo PTC was the one that showed the greatest percentage of penetration.
authors.forename: I
authors.initials: I
authors.lastname: Prokopowitsch
authors.forename: A A
authors.initials: AA
authors.lastname: de Moura
authors.forename: A
authors.initials: A
authors.lastname: Muench
mesh_terms: D003763:Dental Leakage; D003806:Dentin Permeability / Q000187:drug effects*; D006801:Humans; D012388:Root Canal Irrigants / Q000494:pharmacology*; D014088:Tooth Permeability / Q000187:drug effects*; D014092:Tooth Root
chemical_list: D012388:Root Canal Irrigants
vernacular_title: Análise "in vitro" da permeabilidade dentinária radicular do terço apical, tendo como fonte de variação a substância quimica auxiliar da instrumentação.