Combination treatment of tribochemical treatment and phosphoric acid ester monomer of zirconia ceramics enhances the bonding durability of resin-based luting cements.
The aim of the present study was to evaluate the bonding durability of resin-based luting cement to partially stabilized tetragonal zirconia (Y-TZP) achieved by combination treatment of tribochemical (TBC) treatment and two different phosphate acid ester monomers. Two phosphate acid ester monomers (EP: Epricord opaque primer, AZ: AZ primer) were applied to each surface modification followed by application of resin-based luting cement (Rely-X ARC). Bonding specimens were placed in deionized water at 37 degrees C and stored for 24 h. The other groups were subjected to 30,000 cycles of a thermal stress for the durability test. Shear bond tests were done using a universal testing machine at 1 mm/min. Shear bond strengths of combination treatments using EP and AZ on TBC treatment after thermal stress showed no significant difference (p>0.05) compared with those of storage after 24 h. Combination treatment using phosphoric acid ester monomer could achieve a durable bond.
Takeuchi
Kenichiro
K
Department of Oral Biomaterials and Technology, School of Dentistry, Showa University, Tokyo, Japan. takep@dent.showa-u.ac.jp
Fujishima
Akihiro
A
Manabe
Atsufumi
A
Kuriyama
Soichi
S
Hotta
Yasuhiro
Y
Tamaki
Yukimichi
Y
Miyazaki
Takashi
T
D017438:Bisphenol A-Glycidyl Methacrylate; D003188:Composite Resins; D001840:Dental Bonding; D045662:Dental Etching / Q000379:methods*; D003776:Dental Porcelain; D003799:Dental Stress Analysis; D017276:Friction; D008422:Materials Testing; D008689:Methacrylates; D010755:Organophosphates; D010746:Phosphonoacetic Acid / Q000031:analogs & derivatives; D011092:Polyethylene Glycols; D011109:Polymethacrylic Acids; D019279:Resin Cements; D033081:Shear Strength; D015019:Yttrium; D015040:Zirconium
C546895:6-methacryloyloxyhexyl phosphonoacetate; D003188:Composite Resins; D008689:Methacrylates; D010755:Organophosphates; D011109:Polymethacrylic Acids; C462240:RelyX ARC; D019279:Resin Cements; C498352:epricord; C499362:yttria stabilized tetragonal zirconia; D003776:Dental Porcelain; D011092:Polyethylene Glycols; D017438:Bisphenol A-Glycidyl Methacrylate; D015019:Yttrium; D015040:Zirconium; D010746:Phosphonoacetic Acid