title: Effect of Different Surface Treatments on Bond Strength of Resin Cement to a CAD/CAM Restorative Material.
abstract: OBJECTIVE
  To investigate the effects of various surface treatment methods on the shear bond strength of self-adhesive resin cement to a novel CAD/CAM hybrid ceramic material.
  
  
  METHODS
  A novel hybrid ceramic restorative material (Vita Enamic) was used in this study. Sixty resin block specimens were prepared and separated into six groups for each surface treatment method (n = 10); group 1: control group, no treatment applied; group 2: sandblasted by 30 μm silicate-coated alumina particles (CoJet Sandblasting); group 3: 50 μm Al2O3sandblasting; group 4: 10% hydrofluoric acid; group 5: no surface treatment + universal adhesive (3M Single Bond Universal); group 6: 200 mJ, 10 Hz 2W Er,Cr:YSGG laser treatment. For each specimen, surface roughness measurements in noncontact mode were taken after the surface treatments using a portable surface texture-measuring machine. A self-adhesive resin cement (3M U200) was applied on every surface treated with the help of a cylindrical mold (2 × 4 mm) and was filled gradually. Shear bond strength was measured using a universal test machine, and one-way ANOVA and a Duncan test (p = 0.05) were used to analyze the data.
  
  
  RESULTS
  Mean values of the shear bond strength varied between 7.75 and 10.73 MPa. Bond strength values were enhanced by all surface treatment methods compared to the control group. The difference between group 5 and the control group (p < 0.05) was statistically significant, whereas there were no considerable differences between other treatment methods.
  
  
  CONCLUSIONS
  Surface treatments of hybrid ceramic resin blocks could enhance the bond strength to resin cement; however, using Single Bond Universal without surface treatment showed a higher bond strength value.
authors.affiliation: Department of Prosthetic Dentistry, Faculty of Dentistry, Akdeniz University, Antalya, Turkey.
authors.forename: Kubilay
authors.initials: K
authors.lastname: Barutcigil
authors.affiliation: Department of Restorative Dentistry, Faculty of Dentistry, Akdeniz University, Antalya, Turkey.
authors.forename: Çağatay
authors.initials: Ç
authors.lastname: Barutcigil
authors.affiliation: Department of Prosthetic Dentistry, Faculty of Dentistry, Akdeniz University, Antalya, Turkey.|Department of Prosthetic Dentistry, Faculty of Dentistry, Atatürk University, Erzurum, Turkey.
authors.forename: Esra
authors.initials: E
authors.lastname: Kul
authors.affiliation: Department of Prosthetic Dentistry, Faculty of Dentistry, Akdeniz University, Antalya, Turkey.
authors.forename: Mehmet Mustafa
authors.initials: MM
authors.lastname: Özarslan
authors.affiliation: Department of Prosthetic Dentistry, Faculty of Dentistry, Akdeniz University, Antalya, Turkey.
authors.forename: Ulviye Sebnem
authors.initials: US
authors.lastname: Buyukkaplan
mesh_terms: D002516:Ceramics / Q000627:therapeutic use*; D017076:Computer-Aided Design; D001840:Dental Bonding / Q000379:methods*; D003775:Dental Polishing / Q000379:methods; D017267:Dental Prosthesis Design / Q000379:methods*; D003793:Dental Restoration, Permanent / Q000379:methods*; D003799:Dental Stress Analysis; D006801:Humans; D019279:Resin Cements / Q000627:therapeutic use*; D033081:Shear Strength; D013499:Surface Properties
chemical_list: D019279:Resin Cements; C000621297:VITA Enamic
keywords: CAD/CAM; CoJet; Er,Cr:YSGG laser; hybrid ceramic; shear bond test; surface treatment