title: Push-out bond strength of a newly introduced glass fiber root canal filling material.
abstract: OBJECTIVE
  To compare the push-out bond strength of a new glass fiber root canal filling material to that of Resilon/ Epiphany, EndoREZ, and gutta-percha/AH Plus root canal filling materials.
  
  
  METHODS
  Sixty roots were randomly divided into four groups (n = 15) according to the obturation material: group 1, Resilon/Epiphany (RE) (Pentron Clinical Technologies); group 2, gutta-percha/AH Plus (GP) (Dentsply DeTrey); group 3, EndoREZ obturation system (ER) (Ultradent); and group 4, glass fiber root canal filling (GF) (Stick Tech) and dual-curing resin sealer (MetaSeal, Parkell). Two-mm-thick horizontal sections from the coronal, middle, and apical thirds of each root were sliced for the push-out bond strength measurement.
  
  
  RESULTS
  GF showed the significantly highest mean bond strength values at the coronal and middle thirds. At the apical third, GF showed significantly higher bond strength values than did RE and ER. However, there was no significant difference at the apical third between the GF and GP groups. The lowest bond strength values were recorded for ER.
  
  
  CONCLUSIONS
  Glass fiber root canal filling material seems to provide promising bond strength to root canal dentin.
authors.affiliation: Department of Endodontics, University of Ain Shams, Nasr City, Cairo, Egypt. kbatouty@hotmail.com
authors.forename: Kariem Mostafa
authors.initials: KM
authors.lastname: Al Batouty
authors.forename: Ahmed Abdel
authors.initials: AA
authors.lastname: Hashem
mesh_terms: D001840:Dental Bonding; D003799:Dental Stress Analysis; D005898:Glass; D006801:Humans; D007180:Incisor; D008422:Materials Testing; D019904:Polymethyl Methacrylate; D012387:Root Canal Filling Materials / Q000737:chemistry; D012389:Root Canal Obturation; D018709:Statistics, Nonparametric
chemical_list: D012387:Root Canal Filling Materials; C485628:Stick resin; C009753:fiberglass; D019904:Polymethyl Methacrylate