[Interface compatibility between tooth-like yttria-stabilized tetragonal zirconia polycrystal by adding rare-earth oxide and Vita VM9 veneering porcelain].

Abstract

PURPOSE:

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: Yan Gao, Fu-qiang Zhang, Fan He
• Journal: Shanghai kou qiang yi xue = Shanghai journal of stomatology (Shanghai Kou Qiang Yi Xue) Vol. 20 Issue 5 Pg. 486-9 (Oct 2011) ISSN: 1006-7248 [Print] China
• PMID: 22109365 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Dental Alloys
• Oxides
• yttria stabilized tetragonal zirconia
• Dental Porcelain
• Yttrium
• Vita VMK 68
• Zirconium
• zirconium oxide
• yttria

Topics

• Dental Alloys
• Dental Bonding
• Dental Porcelain
• Dental Stress Analysis
• Dental Veneers
• Materials Testing
• Oxides
• Shear Strength
• Yttrium
• Zirconium