title: Comparative analysis of leakage in root canal fillings performed with gutta-percha and Resilon cones with AH Plus and Epiphany sealers.
abstract: OBJECTIVE
  The aim of this study was to compare the leakage of root canal fillings of gutta-percha or Resilon cones in association with AH Plus or Epiphany sealer.
  
  
  METHODS
  Four groups of premolars (n = 64) were instrumented to size 45/.04 ProFile and filled with laterally compacted gutta-percha cones or Resilon cones in association with AH Plus or Epiphany sealer. The specimens were stored for 2 weeks at 37 degrees C and 100% humidity. After that, leakage was measured using the fluid filtration method and determined as microL/min.10 psi.
  
  
  RESULTS
  Homogeneity of variance and multiple comparisons tests were performed and indicated that root fillings with the combination of gutta-percha cones and AH Plus sealer showed lower leakage values (P < .05) than the other groups.
  
  
  CONCLUSIONS
  Considering the experimental conditions and the results obtained, it was concluded that fillings made with gutta-percha cones in combination with AH Plus sealer had the best performance.
authors.affiliation: Department of Endodontics, Pontifical Catholic University of Paraná, Curitiba, Brazil. viniciohirai@hotmail.com
authors.forename: Vinício Hidemitsu Goto
authors.initials: VH
authors.lastname: Hirai
authors.forename: Ulisses Xavier
authors.initials: UX
authors.lastname: da Silva Neto
authors.forename: Vânia Portela Ditzel
authors.initials: VP
authors.lastname: Westphalen
authors.forename: Camila Paiva
authors.initials: CP
authors.lastname: Perin
authors.forename: Everdan
authors.initials: E
authors.lastname: Carneiro
authors.forename: Luiz Fernando
authors.initials: LF
authors.lastname: Fariniuk
mesh_terms: D001641:Bicuspid; D003763:Dental Leakage / Q000517:prevention & control; D004853:Epoxy Resins; D006171:Gutta-Percha; D006801:Humans; D012387:Root Canal Filling Materials; D012389:Root Canal Obturation / Q000379:methods*
chemical_list: D004853:Epoxy Resins; D012387:Root Canal Filling Materials; C486893:epiphany sealer; C534916:epoxy resin-based root canal sealer; C486892:resilon sealer; D006171:Gutta-Percha