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In vitro study on the softening of gutta-percha cones in endodontic retreatment
J D Pécora1, J C Spanó, E L Barbin
1Departamento de Odontologia Restauradora, Faculdade de Odontologia de Ribeirão Preto, Universidade de São Paulo, Brazil.
Brazilian Dental Journal
|January 1, 1993
Abstract:
Softening time of gutta-percha cones was studied in vitro using five chemical solvents: xylol, chloroform, turpentine, eucalyptol, and orange oil. An apparatus which reproduces the penetration force of an endodontic file was used on the sectioned roots of previously filled teeth. The most rapid chemical solvent of gutta-percha cones was chloroform and the slowest was eucalyptol.