The Journal of Contemporary Dental Practice

Register      Login

SEARCH WITHIN CONTENT

FIND ARTICLE

Volume / Issue

Online First

Archive
Related articles

VOLUME 19 , ISSUE 12 ( December, 2018 ) > List of Articles

ORIGINAL ARTICLE

An In Vitro Comparative Evaluation of Shear Bond Strengths of Veneering Porcelain and Different Core Materials

Menon P Rajagopal, Nidhin Ramabhadran, Rahul Nageshraj, Sheejith Madapathy, Pradeep Samuel, Jyothis Mathew

Keywords : Laser sintered metal, Metal ceramic interface, Shear bond strengths, Veneering porcelain, Zirconia liner

Citation Information : Rajagopal MP, Ramabhadran N, Nageshraj R, Madapathy S, Samuel P, Mathew J. An In Vitro Comparative Evaluation of Shear Bond Strengths of Veneering Porcelain and Different Core Materials. J Contemp Dent Pract 2018; 19 (12):1437-1443.

DOI: 10.5005/jp-journals-10024-2446

License: CC BY-NC 4.0

Published Online: 01-12-2018

Copyright Statement:  Copyright © 2018; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim: The aim of the present study was to evaluate and compare the bond strengths of different core structures to veneering porcelain. Materials and methods: Sixty specimens were divided into 4 groups of 15 each. Specimen fabrication was done according to the International Organization for Standardization (ISO) specifications 9693:1999. Group 1 comprised core structure made of cast alloy, group 2 from sintered metal, group 3 from milled zirconia and group 4 milled zirconia without liner at the interface. The shear bond strengths were recorded and the values obtained were statistically examined. Results: Highest values were recorded in group 3 and there were significant differences between groups 1 and 3 while groups 3 and 4 were not statistically different. This led us to imply that zirconia as a core structure provided maximum strengths and laser sintered metal came second. The results also pointed out that the role of the zirconia liner is not that crucial to attaining adequate strength. Conclusion: The present study concluded that zirconia and laser sintered metal are excellent core materials and feasible alternatives to cast alloy. We also concluded from our study that a zirconia liner did not affect the bond strength significantly and is not absolutely essential. Clinical significance: This study helps us to understand the role of materials used as core structures in enhancing the shear bond strength to veneer porcelains and also clarifies the role of a zirconia liner in the process.


PDF Share
  1. Son MK, Choe HC. Evaluation of interfacial bonding strength between laser textured metal coping and porcelain. Procedia Engineering 2011; 10:2286-2289.
  2. Libby G, Arcuri MR, LaVelle WE, Hebl L. Longevity of fixed partial dentures. J Prosthet Dent. 1997;78:127-131.
  3. Strub JR, Stiffler S, Scharer P. Causes of failure following oral rehabilitation: biological versus technical factors. Quintessence International 1988;19:215-222.
  4. Kim B, Zhang Y, Pines M, Thompson VP. Fracture of porcelain-veneered structures in fatigue. Journal of Dental Research 2007;86:142-146.
  5. Saito A, Komine F, Blatz MB, Matsumura H. A comparison of bond strength of layered veneering porcelains to zirconia and metal. J Prosthet Dent 2010;104:247-257. 6 Lenz J, Schwarz S, Schwickerath H, Sperner F, Schafer A. Bond strength of metal-ceramic systems in three-point flexure bond test. J Appl Biomater 1995;6:55-64.
  6. Anusavice KJ. Phillips’ science of dental materials. Philadelphia: Saunders; 2003.
  7. Yao L, Peng C, Wu J. Wettability and bond strength between Lucite-reinforced dental porcelains and Co-Cr alloy. J Prosthet Dent 2013;110:515-520.
  8. Xiang N, Xin XZ, Chen J, Wei B. Metal–ceramic bond strength of Co–Cr alloy fabricated by selective laser melting. J Dent 2012;40(6):453-457.
  9. Wu L, Zhu H, Gai X, Wang Y.Evaluation of the mechanical properties and porcelain bond strength of cobalt-chromium dental alloy fabricated by selective laser melting. J Prosthet Dent 2014;111(1):51-55.
  10. Akova T, Ucar Y, Tukay A, Balkaya MC, Brantley WA. Comparison of the bond strength of laser-sintered and cast base metal dental alloys to porcelain. Dent Mater.2008;24(10):1400-1404.
  11. Reyes MJ, Oshida Y, Andres CJ, Barco T, Hovijitra S, Brown D. Titanium-porcelain system. Part III: effects of surface modification on bond strengths. Biomed Mater Eng 2001;11:117-136.
  12. Zinelis S, Barmpagadaki X, Vergos V, Chakmakchi M, Eliades G. Bond strength and interfacial characterization of eight low fusing porcelains to cp Ti. Dent Mater 2010;26:264-273.
  13. Kim HJ, Lim HP, Park YJ, Vang MS. Effect of zirconia surface treatments on the shear bond strength of veneering ceramic. J Prosthet Dent 2011;105:315-322.
  14. Fischer J, Stawarczyk B, Sailer I, Hammerele CH. Shear bond strength between veneering ceramics and ceria-stabilized zirconia/alumina. J Prosthet Dent 2010;103:267-274.
  15. Ashkanani HM, Raigrodski AJ, Flinn BD, Heindl H, Mancl LA. Flexural and shear strengths of ZrO2 and a high-noble alloy bonded to their corresponding porcelains. J Prosthet Dent. 2008;100(4):274-284.
  16. Choi BK, Han JS, Yang JH, Lee JB, Kim SH. Shear bond strength of veneering porcelain to zirconia and metal cores. J Adv Prosthodont. 2009;1(3):129-135.
  17. International Organization for Standardization. ISO 9693:1999. Metal-ceramic dental restorative systems. Geneva: International Organization for Standardization; 1999. Available at: http://www.iso.org/iso/store.html.
  18. Quante K, Ludwig K, Kern M. Marginal and internal fit of metal-ceramic crowns fabricated with a new laser melting technology. Dent Mater 2008;24(10):1311-1315.
  19. Vojdani M, Torabi K, Farjood E, Khaledi AAR. Comparison the marginal and internal fit of metal copings cast from wax patterns fabricated by CAD/CAM and conventional wax up techniques. J Dent (Shiraz) 2013;14(3):118-129.
  20. Bindl A, Mormann WH. Marginal and internal fit of allceramic CAD/CAM crown-copings on chamfer preparations. J Oral Rehabil 2005;32(6):441-447.
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.