title: The effect of calcium silicate-based sealer on the push-out bond strength of fibre posts.
abstract: BACKGROUND
  The aim of this study was to assess the effect of the iRoot SP root canal sealer on the push-out bond strength of fibre posts cemented with self-adhesive resin cement.
  
  
  METHODS
  Forty-eight extracted maxillary incisors were randomly divided into four groups according to the tested sealer (n = 12): group 1 - control (only gutta-percha points, no sealer); group 2 - AH Plus Jet (resin-based sealer); group 3 - Endofill (zinc oxide-eugenol-based sealer); and group 4 - iRoot SP (calcium silicate-based sealer). All root canals were filled with gutta-percha, and groups 2-4 additionally received one of the sealers. Fibre posts were cemented with the self-adhesive resin cement Clearfil SA Cement. The specimens were sectioned in the coronal, middle and apical regions, producing three slices of 1 mm thickness. The push-out test was performed. All data were submitted to ANOVA and Tukey tests (α = 0.05).
  
  
  RESULTS
  No statistically significant differences were found between the control group, AH Plus Jet and iRoot SP (p > 0.05). The Endofill sealer showed significantly lower bond strength compared to the other sealers and the control group (p < 0.05).
  
  
  CONCLUSIONS
  The calcium silicate-based sealer did not adversely affect the bond strength of the fibre posts cemented with self-adhesive resin cement.
authors.affiliation: Department of Endodontics, Faculty of Dentistry, Mustafa Kemal University, Hatay, Turkey. eozcan58@hotmail.com
authors.forename: E
authors.initials: E
authors.lastname: Özcan
authors.forename: İ D
authors.initials: İD
authors.lastname: Çapar
authors.forename: A R
authors.initials: AR
authors.lastname: Çetin
authors.forename: A R
authors.initials: AR
authors.lastname: Tunçdemir
authors.forename: H A
authors.initials: HA
authors.lastname: Aydınbelge
mesh_terms: D000704:Analysis of Variance; D017610:Calcium Compounds; D003188:Composite Resins; D001840:Dental Bonding; D017220:Dentin-Bonding Agents; D004853:Epoxy Resins; D005054:Eugenol; D005898:Glass; D006801:Humans; D008422:Materials Testing; D011176:Post and Core Technique; D019279:Resin Cements; D012387:Root Canal Filling Materials; D012823:Silicate Cement / Q000737:chemistry*; D017640:Silicates; D018709:Statistics, Nonparametric
chemical_list: D017610:Calcium Compounds; D003188:Composite Resins; D017220:Dentin-Bonding Agents; D004853:Epoxy Resins; D019279:Resin Cements; D012387:Root Canal Filling Materials; D017640:Silicates; C534916:epoxy resin-based root canal sealer; C009753:fiberglass; C074417:Endo-Fill; D012823:Silicate Cement; D005054:Eugenol; C031293:calcium silicate