title: An in vitro evaluation of the contents of root canals obturated with gutta percha and AH-26 sealer or Resilon and Epiphany sealer.
abstract: The purpose of this study was to compare the contents of root canals obturated with gutta percha and AH-26 sealer (Dentsply, Tulsa, OK) to canals obturated with the Resilon and Epiphany (Pentron, Wallingford, CT) system. Canal contents were assessed by determining the percentage of canal space occupied by core material, sealer, voids, and debris. Forty extracted human maxillary anterior teeth were instrumented, and the teeth were randomly assigned to either the gutta percha/AH 26 group or the Epiphany/Resilon group. Canals were obturated, and the teeth were subsequently embedded in resin and sectioned horizontally at 2, 4, and 6 mm from the anatomic apex. Sections were photographed by using a low vacuum scanning electron microscope. Image-J (Wayne Rasband; National Institute of Health, Bethesda, MD) software was used to quantify the proportion of core material, sealer, voids, and debris in each canal. Percentages and statistical comparisons for each method were compared. There were no significant differences found among the two groups in terms of the percentage of core (p = 0.9), sealer (p = 0.58), debris (p = 0.999), or voids (p = 1.00). Additionally, there were no differences in the percentage of core material, sealer, debris, or voids at any of the examined levels (2, 4, or 6 mm).
authors.affiliation: Department of Endodontics, Graduate and Predoc Division, Indiana University School of Dentistry, Indianapolis, Indiana 46202, USA.
authors.forename: Brian L
authors.initials: BL
authors.lastname: James
authors.forename: Cecil E
authors.initials: CE
authors.lastname: Brown
authors.forename: Joseph J
authors.initials: JJ
authors.lastname: Legan
authors.forename: B Keith
authors.initials: BK
authors.lastname: Moore
authors.forename: Mychel M
authors.initials: MM
authors.lastname: Vail
mesh_terms: D001729:Bismuth; D003786:Dental Pulp Cavity; D004338:Drug Combinations; D004853:Epoxy Resins; D006171:Gutta-Percha; D006801:Humans; D007180:Incisor; D008854:Microscopy, Electron; D016062:Porosity; D015203:Reproducibility of Results; D012387:Root Canal Filling Materials; D012389:Root Canal Obturation / Q000379:methods*; D012834:Silver; D016369:Smear Layer; D014025:Titanium
chemical_list: D004338:Drug Combinations; D004853:Epoxy Resins; D012387:Root Canal Filling Materials; C486893:epiphany sealer; C486892:resilon sealer; D012834:Silver; C028044:epoxy resin AH-26; D006171:Gutta-Percha; D014025:Titanium; D001729:Bismuth