title: Effectiveness of three solvents and two associations of solvents on gutta-percha and resilon.
abstract: This study evaluated the effectiveness of 3 solvents (Citrol orange oil, Eucalyptol and Tetrachloroethylene) and 2 associations of solvents (Citrol orange oil+Tetrachloroethylene and Eucalyptol+Tetrachloroethylene) on 3 types of gutta-percha (conventional, thermoplastic and EndoREZ) and Resilon. Ten discs (10 mm diameter x 1 mm thick) from each material were prepared using standard metallic molds. Each specimen was weighed to determinate its initial mass. The specimens were immersed in the solvents for 10 min, followed by immersion in distilled water for 20 min, and were then reweighed to obtain the final mass. The mean weight loss determined the solvent capacity. Data were analyzed by ANOVA and Tukey's test at 5% significance level. Tetrachloroethylene was the most effective on conventional gutta-percha (p<0.05). Tetrachloroethylene was also the most effective on thermoplastic gutta-percha, but it was not significantly different (p>0.05) from Eucalyptol+Tetrachloroethylene, Citrol+Tetrachloroethylene, and Citrol. All solvents and associations presented little effectiveness on Resilon. The association Eucalyptol+Tetrachloroethylene was the most effective on EndoREZ, but it did not differ significantly (p>0.05) from Citrol+Tetrachloroethylene and Tetrachloroethylene. All evaluated substances presented solvent action. Tetrachloroethylene improved the effectiveness of both Citrol and Eucalyptol.
authors.affiliation: Department of Restorative Dentistry, Araraquara Dental School, Univ. Estadual Paulista, SP, Brazil.
authors.forename: Norberto Batista de
authors.initials: NB
authors.lastname: Faria-Júnior
authors.forename: Livia Etchebehere de
authors.initials: LE
authors.lastname: Loiola
authors.forename: Juliane Maria
authors.initials: JM
authors.lastname: Guerreiro-Tanomaru
authors.forename: Fábio Luis Camargo Villela
authors.initials: FL
authors.lastname: Berbert
authors.forename: Mário
authors.initials: M
authors.lastname: Tanomaru-Filho
mesh_terms: D003188:Composite Resins / Q000737:chemistry; D003511:Cyclohexanols / Q000494:pharmacology; D017005:Dental Debonding / Q000379:methods*; D004338:Drug Combinations; D000077591:Eucalyptol; D006171:Gutta-Percha / Q000737:chemistry*; D008422:Materials Testing; D039821:Monoterpenes / Q000494:pharmacology; D010938:Plant Oils / Q000494:pharmacology*; D019233:Retreatment; D012387:Root Canal Filling Materials / Q000737:chemistry*; D018915:Root Canal Preparation / Q000379:methods*; D012997:Solvents / Q000494:pharmacology*; D013750:Tetrachloroethylene / Q000494:pharmacology
chemical_list: D003188:Composite Resins; D003511:Cyclohexanols; D004338:Drug Combinations; C481259:EndoRez; D039821:Monoterpenes; D010938:Plant Oils; D012387:Root Canal Filling Materials; D012997:Solvents; C486892:resilon sealer; D006171:Gutta-Percha; C087245:orange oil; D000077591:Eucalyptol; D013750:Tetrachloroethylene