Open Access, Peer-reviewed, Quarterly
pISSN 0301-2875
eISSN 2005-3789
    J Korean Acad Prosthodont. 2011 Apr;49(2):114-119. Korean.
    Published online Apr 30, 2011.
    https://doi.org/10.4047/jkap.2011.49.2.114
    Copyright © 2011 The Korean Academy of Prosthodontics
    Original Article

    Effect of specimen preparation method on the microtensile bond strength of veneering ceramic to zirconia

    Ki-Yeon Kim, DDS, MSD, In-Sung Yeo, DDS, MSD, PhD, Sung-Hun Kim, DDS, PhD, Jung-Suk Han, DDS, MSD, PhD, Jai-Bong Lee, DDS, MSD, PhD and Jae-Ho Yang, DDS, MSD, PhD
      • Department of Prosthodontics, School of Dentistry, Seoul National University, Seoul, Korea.
    • Corresponding Author: Jae-Ho Yang. Department of Prosthodontics, College of Dentistry, Seoul National University, 28, Yongon-dong, Chongro-gu, Seoul, 110-749, Korea. +82 2 2072 3393: Email: jhoyang@snu.ac.kr
    Received October 05, 2010; Revised October 14, 2010; Accepted March 11, 2011.

    Abstract

    Purpose

    The aim of this study was to investigate effect of specimen preparation method on the microtensile bond strength of veneering ceramic to zirconia core.

    Materials and methods

    Cylindrical Lava zirconia block (3M ESPE, Seefeld, Germany) was cut into discs using a diamond disc. After sintering, the core specimens were placed in an adjustable mold and veneered with Lava ceram (3M ESPE, Seefeld, Germany). The disc shaped specimen of group 1 was cut into microbars (1×1×7 mm3) using a low speed diamond disc under water cooling (n = 15). The specimen of group 2 was cut into microbars (1.2×1.2×7 mm3) in the same way. Whereafter the microbars were trimmed (1×1×7 mm3) using a thick diamond disc under water cooling (n = 15). The microtensile bond strength was tested in a microtensile tester (Instron 8848, Instro® Co., Norwood, USA). Fractured microtensile specimens were analyzed under a stereomicroscope (MZ6, Leica Microsystems GmbH, Wetzlar, Germany) at magnification ×30.

    Results

    The microtensile bond strength of group 1 (28.8 ± 7.0 MPa) was significantly higher than group 2 (11.0 ± 3.3 MPa) (P=.00).

    Conclusion

    It appears advisable to avoid the trimming action, especially high strength ceramic specimens.

    Keywords
    Zirconia; Microtensile bond strength; Trimming

    Figures

    Fig. 1
    Veneered zirconia disc (A) was cut into microbars (B) for conducting microtensile bond strength test.

    Fig. 2
    Microtensile bond strength test. A: microtensile tester, B: before the test, C: after the test.

    Tables

    Table 1
    Microtensile bond strength value (MPa) of veneering ceramic to zirconia core

    Table 2
    Failure type was classified into two groups: cohesive failure in the Lava ceram and mixed failure*

    References

      1. Manicone PF, Rossi Iommetti P, Raffaelli L. An overview of zirconia ceramics: basic properties and clinical applications. J Dent 2007;35:819–826.
      1. Vult von Steyern P, Carlson P, Nilner K. All-ceramic fixed partial dentures designed according to the DC-Zirkon technique. A 2-year clinical study. J Oral Rehabil 2005;32:180–187.
      1. Raigrodski AJ, Chiche GJ, Potiket N, Hochstedler JL, Mohamed SE, Billiot S, Mercante DE. The efficacy of posterior three-unit zirconium-oxide-based ceramic fixed partial dental prostheses: a prospective clinical pilot study. J Prosthet Dent 2006;96:237–244.
      1. Sailer I, Fehér A, Filser F, Lüthy H, Gauckler LJ, Schärer P, Franz Hämmerle CH. Prospective clinical study of zirconia posterior fixed partial dentures: 3-year follow-up. Quintessence Int 2006;37:685–693.
      1. Aboushelib MN, de Jager N, Kleverlaan CJ, Feilzer AJ. Microtensile bond strength of different components of core veneered all-ceramic restorations. Dent Mater 2005;21:984–991.
      1. Al-Dohan HM, Yaman P, Dennison JB, Razzoog ME, Lang BR. Shear strength of core-veneer interface in bi-layered ceramics. J Prosthet Dent 2004;91:349–355.
      1. Kelly JR, Tesk JA, Sorensen JA. Failure of all-ceramic fixed partial dentures in vitro and in vivo: analysis and modeling. J Dent Res 1995;74:1253–1258.
      1. Isgrò G, Pallav P, van der Zel JM, Feilzer AJ. The influence of the veneering porcelain and different surface treatments on the biaxial flexural strength of a heat-pressed ceramic. J Prosthet Dent 2003;90:465–473.
      1. al-Shehri SA, Mohammed H, Wilson CA. Influence of lamination on the flexural strength of a dental castable glass ceramic. J Prosthet Dent 1996;76:23–28.
      1. Della Bona A, van Noort R. Shear vs. tensile bond strength of resin composite bonded to ceramic. J Dent Res 1995;74:1591–1596.
      1. Sano H, Ciucchi B, Matthews WG, Pashley DH. Tensile properties of mineralized and demineralized human and bovine dentin. J Dent Res 1994;73:1205–1211.
      1. Van Noort R, Cardew GE, Howard IC, Noroozi S. The effect of local interfacial geometry on the measurement of the tensile bond strength to dentin. J Dent Res 1991;70:889–893.
      1. Cardoso PE, Braga RR, Carrilho MR. Evaluation of micro-tensile, shear and tensile tests determining the bond strength of three adhesive systems. Dent Mater 1998;14:394–398.
      1. Valandro LF, Ozcan M, Amaral R, Vanderlei A, Bottino MA. Effect of testing methods on the bond strength of resin to zirconia-alumina ceramic: microtensile versus shear test. Dent Mater J 2008;27:849–855.
      1. Reis A, de Oliveira Bauer JR, Loguercio AD. Influence of crosshead speed on resin-dentin microtensile bond strength. J Adhes Dent 2004;6:275–278.
      1. Yamaguchi K, Miyazaki M, Takamizawa T, Tsubota K, Rikuta A. Influence of crosshead speed on micro-tensile bond strength of twostep adhesive systems. Dent Mater 2006;22:420–425.
      1. Sano H, Shono T, Sonoda H, Takatsu T, Ciucchi B, Carvalho R, Pashley DH. Relationship between surface area for adhesion and tensile bond strength-evaluation of a micro-tensile bond test. Dent Mater 1994;10:236–240.
      1. Phrukkanon S, Burrow MF, Tyas MJ. Effect of cross-sectional surface area on bond strengths between resin and dentin. Dent Mater 1998;14:120–128.
      1. El Zohairy AA, de Gee AJ, de Jager N, van Ruijven LJ, Feilzer AJ. The influence of specimen attachment and dimension on microtensile strength. J Dent Res 2004;83:420–424.
      1. Goracci C, Sadek FT, Monticelli F, Cardoso PE, Ferrari M. Influence of substrate, shape, and thickness on microtensile specimens' structural integrity and their measured bond strengths. Dent Mater 2004;20:643–654.
      1. Poitevin A, De Munck J, Van Landuyt K, Coutinho E, Peumans M, Lambrechts P, Van Meerbeek B. Influence of three specimen fixation modes on the micro-tensile bond strength of adhesives to dentin. Dent Mater J 2007;26:694–699.
      1. Kosmac T, Oblak C, Jevnikar P, Funduk N, Marion L. The effect of surface grinding and sandblasting on flexural strength and reliability of Y-TZP zirconia ceramic. Dent Mater 1999;15:426–433.
    MeSH Terms
    Ceramics
    Diamond
    Fungi
    Water
    Zirconium
    Metrics
    Share
    Figures
    slide
    slide

    1 / 2

    Tables
    slide
    slide

    1 / 2

    PERMALINK