title: Dentin bond strength of two mineral trioxide aggregate-based and one epoxy resin-based sealers.
abstract: BACKGROUND
  This study aimed at evaluating the bond strength to root dentin of 2 mineral trioxide aggregate (MTA)-based sealers (Endo-CPM sealer and MTA Fillapex) and of 1 epoxy resin-based sealer (AH Plus sealer).
  
  
  METHODS
  Forty-five extracted human teeth with single roots were prepared by using the step-back technique. Irrigation with 2.5% NaOCl and a final rinse with 17% ethylenediaminetetraacetic acid and distilled water were performed. Canals were filled by using Endo-CPM sealer, MTA Fillapex, or AH Plus sealer by means of the gutta-percha lateral condensation technique. After 7 days, the roots were sectioned perpendicularly to its long axis, and the push-out test was carried out. The data were analyzed by using the Kruskal-Wallis and Dunn post hoc tests.
  
  
  RESULTS
  Endo-CPM sealer showed the highest values of bond strength to root dentin (8.265 MPa) (P < .05). The values of push-out test were similar for MTA Fillapex (2.041 MPa) and AH Plus (3.034 MPa).
  
  
  CONCLUSIONS
  On the basis of the findings presented herein and within the limitations of this study, Endo-CPM sealer presented advantages when a post preparation was required. MTA Fillapex presented acceptable resistance to dislodgement, which was similar to that observed in samples filled with AH Plus sealer.
authors.affiliation: Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: Eloísa
authors.initials: E
authors.lastname: Assmann
authors.forename: Roberta Kochenborger
authors.initials: RK
authors.lastname: Scarparo
authors.forename: Daiana Elisabeth
authors.initials: DE
authors.lastname: Böttcher
authors.forename: Fabiana Soares
authors.initials: FS
authors.lastname: Grecca
mesh_terms: D017607:Aluminum Compounds / Q000737:chemistry*; D017610:Calcium Compounds / Q000737:chemistry*; D001840:Dental Bonding; D003786:Dental Pulp Cavity / Q000648:ultrastructure*; D003799:Dental Stress Analysis / Q000295:instrumentation; D003804:Dentin / Q000648:ultrastructure*; D004338:Drug Combinations; D004492:Edetic Acid / Q000008:administration & dosage; D004853:Epoxy Resins / Q000737:chemistry*; D006801:Humans; D008422:Materials Testing; D010087:Oxides / Q000737:chemistry*; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012388:Root Canal Irrigants / Q000008:administration & dosage; D018915:Root Canal Preparation / Q000379:methods; D017640:Silicates / Q000737:chemistry*; D012973:Sodium Hypochlorite / Q000008:administration & dosage; D013314:Stress, Mechanical; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry
chemical_list: D017607:Aluminum Compounds; D017610:Calcium Compounds; D004338:Drug Combinations; C540763:Endo-CPM-Sealer; D004853:Epoxy Resins; D010087:Oxides; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; D017640:Silicates; C534916:epoxy resin-based root canal sealer; C086631:mineral trioxide aggregate; D014867:Water; D004492:Edetic Acid; D012973:Sodium Hypochlorite