Matching Ability of Dental Shaded Zirconia Ceramics and Veneering Porcelain

Abstract:

The matching properties of ceramics and veneering porcelain play an important role for the overall color and mechanical properties of dental crowns. The Vita VM9 veneering porcelain was coated on the surfaces of two zirconia, three-point flexural strength, heat shock resistance and the overall color after veneered with porcelain were tested. The results showed that the interlayer cracks, radial cracks or porcelain body cracks were not appeared in all samples during thermal shock experiments at 60~220°C. Their flexural strength was all above 700MPa and the overall color covered the common color of VITA-3D Master shade guide. There is good thermal compatibility between the two dental shaded zirconia ceramics and Vita VM9 veneering porcelain. The mechanical properties are suitable for clinical posterior teeth area restorative, and the overall color is also suitable for the requirements on the color and brightness of clinical dental restoration.

• Periodical: Key Engineering Materials (Volumes 512-515)
• Pages: 1751-1755
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.512-515.1751
• Online since: June 2012
• Authors: Li Min Dong, Chen Wang, Ning Wen, Yuan Fu Yi, Qing Feng Zan, Jie Mo Tian
• Keywords: Dental, Shaded Ceramics, Veneering Porcelain, Zirconia

References

[1] M. Vollmann, The innovative DeguDent all-ceramic system: benchmark for zirconia processing, Int J Comput Dent. 7 (2004) 279-291.

[2] D. Suttor, Lava zirconia crown and bridges, Int J Comput Dent. 7 (2004) 67-76.

[3] Hauptmann, U.S. Patent 20060117989 (2006).

[4] S.N. White, V.G. Miklus, E.A. Mclaren, et al. Flexural strength of a layered zirconia and porcelain dental all-ceramic system, J Prosthet Dent. 94 (2005) 125-131.

DOI: 10.1016/j.prosdent.2005.05.007

[5] N. Wakabayashi, K.J. Anusavice, Crack initiation modes in bilayered alumina/porcelain disks as a function of core/veneer thickness ration and supporting substrate stiffness, J Dent Res. 79 (2000) 1398-1404.

DOI: 10.1177/00220345000790060801

[6] G.J.P. Fleming, M. Dickens, L.J. Thomas, et al. The in vitro failure of all-ceramic crowns and the connector area of fixed partial dentures using bilayered ceramic specimens: The influene of core to dentin thickness ratio, Dent Mater. 22 (2006) 771-777.

DOI: 10.1016/j.dental.2005.11.005

[7] M. Guazzato, K. Proos, L. Quach, et al. Strength, reliability and mode of fracture of bilayered porcelain/zirconia (Y-TZP) dental ceramics, Biomater. 25 (2004) 5045-5052.

DOI: 10.1016/j.biomaterials.2004.02.036

[8] Y.Z. Lin, Study on Shaded Zirconia Ceramics for Dental Restoration, Master's Thesis, Tsinghua University, Beijing (2008).