title: [Effects of a zirconia primer and a self-adhesive resin cement on zirconia bonding].
abstract: OBJECTIVE
  To evaluate the effects of a zirconia primer and a self-adhesive resin cement on the resin bonding zirconia.
  
  
  METHODS
  Eighty zirconia blocks were manufactured, alumina-sandblasted, and randomly divided into five groups that received surface-treatments using different resin cements: group C, treated with a conventional bisphenol-A diglycidyl dimethacrylate (Bis-GMA)-based resin cement; group R, treated with a self-adhesive resin cement; group S, silica-coated via a Sol-gel process, conditioned with silane, and then treated with the Bis-GMA-based resin cement; group ZC, conditioned with a zirconia primer (Z-Prime Plus) and subsequently treated with the Bis-GMA-based resin cement; group ZR, conditioned with the zirconia primer and treated with the self-adhesive resin cement. Light-cured composite resin cylinders were prepared and bonded on the prepared zirconia blocks. Half of the specimens in each group were water-stored for 24 hours, whereas the remaining specimens were aged by thermocycling. All specimens were then subjected to shear bond strength (SBS) testing. Fourier transmission infrared (FT-IR) spectroscopy and gas chromatography-mass spectrometry (MS) were performed to characterize the zirconia primer.
  
  
  RESULTS
  Group C presented the lowest SBS, whereas groups R, ZC, and ZR presented the highest values. Thermocycling had no effect on SBS. FT-IR results showed that Z-Prime Plus contained a benzene ring and a carbonyl group. MS analysis showed that Z-Prime Plus contained 2-hydroxyethyl methacrylate, triethylamine.
  
  
  CONCLUSIONS
  Zirconia primer and self-adhesive resin cement increase the resin bonding of zirconia.
authors.affiliation: Institute of Stomatology, Nanjing Medical University, Nanjing 210029, China.
authors.forename: Chen
authors.initials: C
authors.lastname: Chen
authors.forename: Haifeng
authors.initials: H
authors.lastname: Xie
authors.forename: Xin
authors.initials: X
authors.lastname: Song
authors.forename: Feimin
authors.initials: F
authors.lastname: Zhang
mesh_terms: D000269:Adhesives; D000537:Aluminum Oxide; D001559:Benzhydryl Compounds; D017438:Bisphenol A-Glycidyl Methacrylate; D003188:Composite Resins; D001840:Dental Bonding; D003738:Dental Cements; D006801:Humans; D008689:Methacrylates; D019279:Resin Cements; D033081:Shear Strength; D012821:Silanes; D017550:Spectroscopy, Fourier Transform Infrared; D015040:Zirconium; D000098826:Bisphenol A Compounds
chemical_list: D000269:Adhesives; D000537:Aluminum Oxide; D001559:Benzhydryl Compounds; D017438:Bisphenol A-Glycidyl Methacrylate; D003188:Composite Resins; D003738:Dental Cements; D008689:Methacrylates; D019279:Resin Cements; D012821:Silanes; D015040:Zirconium; C095998:Adhesive cement; C005044:hydroxyethyl methacrylate; C002462:4,4'-isopropylidenediphenol dimethacrylate; D000098826:Bisphenol A Compounds; C028541:zirconium oxide