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  • 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].
    Author: Prokopowitsch I, de Moura AA, Muench A.
    Journal: Rev Odontol Univ Sao Paulo; 1989; 3(2):345-53. PubMed ID: 2639456.
    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.
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