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VOLUME 19 , ISSUE 3 ( March, 2018 ) > List of Articles

ORIGINAL RESEARCH

Effect of Different Surface Treatments on Biaxial Flexural Strength of Yttria-stabilized Tetragonal Zirconia Polycrystal

Teerthesh Jain, Sumanth Babu, Zahid A Khan, Chandeep Kaur, Ranu B Jain

Citation Information : Jain T, Babu S, Khan ZA, Kaur C, Jain RB. Effect of Different Surface Treatments on Biaxial Flexural Strength of Yttria-stabilized Tetragonal Zirconia Polycrystal. J Contemp Dent Pract 2018; 19 (3):318-323.

DOI: 10.5005/jp-journals-10024-2260

License: CC BY 3.0

Published Online: 01-01-2015

Copyright Statement:  Copyright © 2018; The Author(s).


Abstract

Introduction

Ceramics are widely applied in dentistry owing to their excellent mechanical and physical attributes. The most popular ceramics are Lava, KaVo Everest, and Cercon. However, it is unclear whether or not a different surface treatment along with low-temperature aging and mechanical loading (ML) affects the physical properties of computer-aided design (CAD)/computer-aided manufacturing (CAM)-machined yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) ceramic.

Aim

The objective of this research was to assess the impact of various surface treatments as air-particle abrasion, ML, low-temperature degradation (LTD), and their cumulative effects on biaxial flexural properties of Y-TZP.

Materials and methods

Totally, 50 specimens were fabricated by CAD–CAM machining from Cercon® and divided into five groups following different surface treatments as control (C), air-particle abrasion (Si), ML, LTD, and cumulative treatment (CT) group. Results were investigated by two-way analysis of variance (ANOVA) and Tukey honest significant difference (HSD) test.

Results

The highest biaxial flexural strength was observed in the Si group (950.2 ± 126.7 MPa), followed by the LTD group (861.3 ± 166.8 MPa), CT group (851.2 ± 126.5 MPa), and the least with ML (820 ± 110 MPa). A significant difference was observed in the two-way ANOVA test. X-ray diffraction (XRD) analysis showed that the control group consists of 100% tetragonal zirconia and the maximum amount of monoclinic phase was obtained after LTD.

Conclusion

No negative effect on biaxial flexural strength was observed; indeed, it increases the biaxial strength. Hence, these surface treatments can be done in routine clinical practice to improve the performance of ceramic restoration.

How to cite this article

Jain T, Porwal A, Babu S, Khan ZA, Kaur C, Jain RB. Effect of Different Surface Treatments on Biaxial Flexural Strength of Yttria-stabilized Tetragonal Zirconia Polycrystal. J Contemp Dent Pract 2018;19(3):318-323.


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  1. Effects of surface treatments on the susceptibilities of low temperature degradation by autoclaving in zirconia. J Biomed Mater Res B Appl Biomater 2012 Jul;100(5):1334-1343.
  2. Bridging the gap between clinical failure and laboratory fracture strength tests using a fractographic approach. Dent Mater 2009 Mar;25(3):383-391.
  3. The effect of surface grinding and sandblasting on flexural strength and reliability of Y-TZP zirconia ceramic. Dent Mater 1999 Nov;15(6):426-433.
  4. Low-temperature degradation of a Y-TZP ceramic after surface treatments. J Biomed Mater Res B Appl Biomater 2013 Nov;101(8):1387-1392.
  5. Fatigue and damage tolerance of Y-TZP ceramics in layered biomechanical systems. J Biomed Mater Res B Appl Biomater 2004 Oct;71(1):166-171.
  6. Concerns of hydrothermal degradation in CAD/CAM zirconia. J Dent Res 2010 Jan;89(1):91-95.
  7. The lava system for CAD/CAM production of high strength precision fixed prosthodontics. Quintessence Dent Technol 2003 Jan;26:57-67.
  8. Biaxial flexural strength, elastic moduli, and X-ray diffraction characterization of three pressable all-ceramic materials. J Prosthet Dent 2003 Apr;89(4):374-380.
  9. Flexural strength and fracture toughness of dental core ceramics. J Prosthet Dent 2007 Aug;98(2):120-128.
  10. The effect of surface roughness on the flexure strength of an alumina reinforced all-ceramic crown material. J Dent 2002 May;30(4):153-160.
  11. Flexure tests on dental ceramics. Int J Prosthodont 1996 Sep-Oct;9(5):434-439.
  12. Strength and reliability of surface treated Y-TZP dental ceramics. J Biomed Mater Res 2000 Jul;53(4):304-313.
  13. Strength, fracture toughness and microstructure of a selection of all-ceramic materials. Part I. Pressable and alumina glass-infiltrated ceramics. Dent Mater 2004 Jun;20(5):441-448.
  14. Influence of surface and heat treatments on the flexural strength of Y-TZP dental ceramic. J Dent 2005 Jan;33(1):9-18.
  15. Influence of surface treatments on surface roughness, phase transformation, and biaxial flexural strength of Y-TZP ceramics. J Biomed Mater Res B Appl Biomater 2009 Nov;91(2):930-937.
  16. Mechanical properties of dental zirconia ceramics changed with sandblasting and heat treatment. Dent Mater J 2008 May;27(3):408-414.
  17. Damage accumulation and fatigue life of particle-abraded ceramics. Int J Prosthodont 2006 Sep-Oct;19(5):442-448.
  18. The influence of surface modification techniques on the performance of a Y-TZP dental ceramic. J Dent 2006 Mar;34(3):195-206.
  19. Effect of mechanical cycling on the flexural strength of densely sintered ceramics. Dent Mater 2006 Nov;22(11):1029-1034.
  20. The influence of simulated masticatory loading regimes on the bi-axial flexure strength and reliability of a Y-TZP dental ceramic. J Dent 2006 May;34(5):317-325.
  21. Low-temperature aging of Y-TZP ceramics. J Am Ceram Soc 1999 Aug;82:2150-2204.
  22. What future for zirconia as a biomaterial? Biomaterials 2006 Feb;27(4):535-543.
  23. Slip-casting alumina ceramics for crown and bridge restorations. Quintessence Int 1992 Jan;23(1):25-31.
  24. Long-term in vivo and in vitro aging of a zirconia ceramic used in orthopaedy. J Biomed Mater Res 1994 May;28(5):619-624.
  25. Time-dependent changes in the mechanical properties of zirconia ceramic. J Biomed Mater Res 1993 Jun;27(6):729-734.
  26. Strength, fracture toughness and microstructure of a selection of all-ceramic materials. Part II. Zirconia-based dental ceramics. Dent Mater 2004 Jun;20(5):449-456.
  27. In vitro evaluation of low-temperature aging effects and finishing procedures on the flexural strength and structural stability of Y-TZP dental ceramics. J Prosthet Dent 2006 Sep;96(3):154-164.
  28. Flexural strength of in-ceram alumina and in-ceram zirconia core materials. Int J Prosthodont 2002 Mar-Apr;15(2):183-188.
  29. Weibull analysis and flexural strength of hot-pressed core and veneered ceramic structures. Dent Mater 2003 Nov;19(7):662-669.
  30. Influence of surface and heat treatments on the flexural strength of a glass-infiltrated alumina/zirconia-reinforced dental ceramic. Dent Mater 2005 May;21(5):454-463.
  31. CAD/CAM-machining effects on Y-TZP zirconia. Dent Mater 2004 Sep;20(7):655-662.
  32. Zirconia-TZP and alumina—advanced technologies for the manufacturing of single crowns. Eur J Prosthodont Restor Dent 1999 Dec;7(4):113-119.
  33. Zirconia as a ceramic biomaterial. Biomaterials 1999 Jan;20(1):1-25.
  34. Chemical solubility and flexural strength of zirconia-based ceramics. Int J Prosthodont 2007 Nov-Dec;20(6):587-595.
  35. Influence of thermal expansion mismatch and fatigue loading on phase changes in porcelain veneered Y-TZP zirconia discs. J Oral Rehabil 2007 Nov;34(11):841-847.
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