title: [Interface compatibility between tooth-like yttria-stabilized tetragonal zirconia polycrystal by adding rare-earth oxide and Vita VM9 veneering porcelain].
abstract: OBJECTIVE
  To evaluate the interface compatibility between tooth-like yttria-stabilized tetragonal zirconia polycrystal(Y-TZP) by adding rare-earth oxide and Vita VM9 veneering porcelain.
  
  
  METHODS
  Six kinds(S1,S2,S3,S4,S5,S6) of tooth-like yttria stabilized tetragonal zirconia polycrystal were made by introducing internal colorating technology to detect the thermal shock resistance and interface bonding strength with Vita VM9 Bsaedentin. Statistical analysis was performed using SAS6.12 software package.
  
  
  RESULTS
  There was no gap between the layers via hot shocking test.The shear bonding strength between Y-TZP and VitaVM9 was higher and the value was (36.03±3.82) to (37.98±4.89) MPa.
  
  
  CONCLUSIONS
  By adding rare-earth oxide to yttria-stabilized tetragonal zirconia polycrystal ,better compatibility between the layer (TZP and Vita VM9) can be formed which is of better interface integrate and available for clinical applications.
authors: Department of Prosthodontics, Shanghai Jiao Tong University School of Medicine, Shanghai,China. drgaoyan@gmail.com
authors: Yan
authors: Y
authors: Gao
authors: Fu-qiang
authors: FQ
authors: Zhang
authors: Fan
authors: F
authors: He
mesh_terms: D003722:Dental Alloys; D001840:Dental Bonding; D003776:Dental Porcelain; D003799:Dental Stress Analysis; D003801:Dental Veneers; D008422:Materials Testing; D010087:Oxides; D033081:Shear Strength; D015019:Yttrium; D015040:Zirconium
chemical_list: D003722:Dental Alloys; D010087:Oxides; C499362:yttria stabilized tetragonal zirconia; D003776:Dental Porcelain; D015019:Yttrium; C047040:Vita VMK 68; D015040:Zirconium; C028541:zirconium oxide; C091417:yttria