title: Effect of endodontic sealer and resin luting strategies on pull-out bond strength of glass fiber posts to dentin.
abstract: The aim of this study was to evaluate the influence of eugenol-containing endodontic sealers and luting strategy on the pull-out bond strength of glass fiber posts to dentin. Sixty-four bovine incisors were randomly assigned into two groups of 32 specimens each for obturation procedure with gutta-percha only, or with Pulp Canal Sealer EWT Subsequently, the roots were prepared for the fiber post Reforpost and all specimens of each endodontic sealing procedure were allocated to four groups (n = 8), according to the strategies for post cementation: A) Single Bond 2 and RelyX ARC; B) All Bond 2 and C&B cement; C) All Bond 2 and RelyX ARC; D) Single Bond 2 and C&B Cement. The posts were cemented immediately after the endodontic treatment. The pull-out test was performed at a cross-head speed of 0.5 mm/min in a universal testing machine (EMIC). Data (Kgf) were submitted to a two-way ANOVA and Tukey test (p < or = 0.05). The eugenol-based sealer did not influence the pull-out bond strength of fiber posts regardless of the luting strategy. RelyX ARC showed higher bond strength than C&B Cement when used with Single Bond 2 adhesive system, when the eugenol-based sealer was present. All Bond 2, when associated to all cements studied, promoted similar bond strength, regardless of the eugenol-containing endodontic sealer In conclusion, eugenol-containing sealer did not influence the pull-out bond strength values of the resin luting systems for glass fiber post cementation. The bond system and resin cement association from the same manufacturer had similar bond strength values for dentin.
authors.affiliation: Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, SP, Brazil. edujcsj@gmail.com
authors.forename: Eduardo J
authors.initials: EJ
authors.lastname: Souza-Junior
authors.forename: Vanessa C P S
authors.initials: VC
authors.lastname: Bueno
authors.forename: Carlos T S
authors.initials: CT
authors.lastname: Dias
authors.forename: Luís A M S
authors.initials: LA
authors.lastname: Paulillo
mesh_terms: D000818:Animals; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D001896:Boron Compounds / Q000737:chemistry; D002417:Cattle; D002484:Cementation / Q000379:methods; D055117:Curing Lights, Dental; D001840:Dental Bonding / Q000379:methods; D003738:Dental Cements / Q000737:chemistry; D003786:Dental Pulp Cavity / Q000648:ultrastructure; D003799:Dental Stress Analysis / Q000295:instrumentation; D003804:Dentin / Q000648:ultrastructure*; D017220:Dentin-Bonding Agents / Q000737:chemistry; D005054:Eugenol / Q000737:chemistry; D005898:Glass / Q000737:chemistry*; D006171:Gutta-Percha / Q000737:chemistry; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D008768:Methylmethacrylates / Q000737:chemistry; D011092:Polyethylene Glycols / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry; D011176:Post and Core Technique / Q000295:instrumentation*; D011897:Random Allocation; D019279:Resin Cements / Q000737:chemistry*; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012389:Root Canal Obturation; D013314:Stress, Mechanical
chemical_list: C554641:Adper single bond 2; D001896:Boron Compounds; D003738:Dental Cements; D017220:Dentin-Bonding Agents; D008689:Methacrylates; D008768:Methylmethacrylates; D011109:Polymethacrylic Acids; C462240:RelyX ARC; D019279:Resin Cements; D012387:Root Canal Filling Materials; C009753:fiberglass; C100742:All-Bond 2; D005054:Eugenol; D011092:Polyethylene Glycols; D017438:Bisphenol A-Glycidyl Methacrylate; D006171:Gutta-Percha; C049495:Super-bond