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VOLUME 9 , ISSUE 3 ( July-September, 2019 ) > List of Articles

Original Article

A Comparative Assessment of Flexural Bond Strength of Ni–Cr Metal–Ceramic Alloy on Repeated Castings

Ragala Jhansi, Allu Venkata Reddy, Kasina Sitaram Prasad, Yarlagadda Siva Kiran, Dola Sundeep

Keywords : Bond strength and feasibility, Ni–Cr alloys, Recycled alloys

Citation Information : Jhansi R, Reddy AV, Prasad KS, Kiran YS, Sundeep D. A Comparative Assessment of Flexural Bond Strength of Ni–Cr Metal–Ceramic Alloy on Repeated Castings. Int J Prosthodont Restor Dent 2019; 9 (3):70-76.

DOI: 10.5005/jp-journals-10019-1240

License: CC BY-NC 4.0

Published Online: 01-12-2017

Copyright Statement:  Copyright © 2019; The Author(s).


Abstract

Aim: The present work is aimed to evaluate and compare the metal–ceramic bond strength and clinical feasibility of three commercially available Ni–Cr alloys with different compositions before and after recasting. The hypothesis of this experiment is to evaluate the effect of the recasting of base metal alloys in the physical and chemical properties of alloys, which in turn affect the metal–ceramic bond strength. Materials and methods: In the present experiment, we considered 60 Ni–Cr metal samples, which were divided into group I and group II with every 30 samples. Group I consists of 30 samples fabricated with 100% new alloy, and group II consists of 30 samples fabricated with 100% recycled alloy. Groups I and II are further divided into three subgroups IA, IB, IC and IIA, IIB and IIC on the basis of three brands of Ni–Cr alloy as NDN as (A), soft alloy as (B) and superbond as (C) with each of 10 samples. Metal sprues and buttons obtained after casting of group I samples were used as a recast alloy for the fabrication of group II samples. Results: The flexural bond strength of the fabricated metal–ceramic samples was subjected to three points bending test in a universal testing machine. The obtained values were statistically analyzed using one-way analysis of variance and post hoc Tukey analysis. The morphological studies are the stereomicroscopic examination of all the samples revealed alloy–metal oxide disjunction failure. Conclusion: The mean flexural bond strength for all the groups was above the minimum requirement by American Dental Association (ADA) specification no. 38 and ISO specification 9693. The mean bond strength of group I samples is found to be greater than the group II samples. The soft alloy and superbond have the highest mean bonds when compared among the samples fabricated with 100% new alloy and 100% recycled alloy. Superbond and soft alloy are followed by former and later, and NDN is found to be least for both types. The soft alloy has more reduction in metal–ceramic bond strength in group II (samples fabricated with 100% recycled alloy) when compared to group I.

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  1. Raoch M. Base metal alloys used for dental restorations and implants. Dent Clin North Am 2007;51(3):603–627. DOI: 10.1016/j.cden.2007.04.001.
  2. Bruschi M, Steinmüller-Nethl D, Goriwoda W, et al. Composition and modifications of dental implant surfaces. J Oral Implants 2015;2015:527426. DOI: 10.1155/2015/527426.
  3. Naik BR, Mathur S. A comparative evaluation of flexural strength and hardness of different provisional fixed restorative resins with varied setting reactions – an in vitro study. National Journal of Integrated Research in Medicine 2018;8(2):72–77.
  4. Roberts HW, Berzins DW, Moore BK, et al. Metal-ceramic alloys in dentistry: a review. J Prosthodont 2009;18(2):188–194. DOI: 10.1111/j.1532-849X.2008.00377.x.
  5. Miyazaki T, Nakamura T, Matsumura H, et al. Current status of zirconia restoration. J Prosthodont Res 2013;57(4):236–261. DOI: 10.1016/j.jpor.2013.09.001.
  6. Shenoy A, Shenoy N. Dental ceramics: an update. J Conserv Dent 2010;13(4):195–203. DOI: 10.4103/0972-0707.73379.
  7. Megremis S, Carey CM. Corrosion and Tarnish of Dental Alloys, ASM handbook, Novelty, USA; 2006, vol 13C. pp. 891–921.
  8. Al Jabbari YS. Physico-mechanical properties and prosthodontic applications of Co-Cr dental alloys: a review of the literature. J Adv Prosthodont 2014;6(2):138–145. DOI: 10.4047/jap.2014.6.2.138.
  9. Goto S, Nakai A, Miyagava Y, et al. Development of Ag-Pd-Au-Cu alloys for multiple dental applications. Part 2. Mechanical properties of experimental Ag-Pd-Au-Cu alloys containing Sn or Ga for ceramic-metal restorations. Dent Mater J 2001;20(2):135–147. DOI: 10.4012/dmj.20.135.
  10. Burak Y, Gulce A, Johnston WM. Effect of framework material on the color of implant-supported complete-arch fixed dental prostheses. J Prosthet Dent 2019;122(1):69–75. DOI: 10.1016/j.prosdent.2018. 11.005.
  11. Sakaguchi RL, Ferracane J, Powers JM. Craig's Restorative Dental Materials, 14th ed. 2018. ISBN: 978-0-323-47821-2.
  12. Singh A, Ramachandra K, Devarhubli A. Evaluation and comparison of shear bond strength of porcelain to a beryllium-free alloy of nickel-chromium, nickel and beryllium free alloy of cobalt-chromium, and titanium: An in vitro study. J Indian Prosthodont Soc 2017;17(3): 261–266. DOI: 10.4103/jips.jips_337_16.
  13. Knosp H, Holliday RJ, Corti CW. Gold in dentistry: alloys, uses and performance. Gold Bull 2013;36:93–102. DOI: 10.1007/BF03215496.
  14. Gonçalves SEP, Bresciani E. Reconstructions using alloys and ceramics, nickel–chromium alloys. In Material-Tissue Interfacial Phenomena; 2017.
  15. Zhou Y, Li N, Wang H, et al. Effects of the rare earth element lanthanum on the metal-ceramic bond strength of dental casting Co-Cr alloys. J Prosthet Dent 2019;121(5):848–857. DOI: 10.1016/j.prosdent.2018.08.017.
  16. Anusavice KJ, Ringle RD, Fairhurst CW. Adherence controlling elements in ceramic-metal systems. II. Nonprecious alloys. J Dent Res 1977;56(9):1053–1061. DOI: 10.1177/00220345770560090401.
  17. Kaleswara RA, Tapan TV, Durga PT, et al. Comparative evaluation of metal-ceramic bond strengths of nickel chromium and cobalt chromium alloys on repeated castings: an in vitro study. J Int Oral Health 2014;6(5):99–103.
  18. Razzak MA. Heat treatment and effects of Cr and Ni in low alloy steel. Bull Mater Sci 2011;34(7):1439–1445. DOI: 10.1007/s12034-011- 0340-9.
  19. Kelly JR, Rose TC. Nonprecious alloys for use in fixed prosthodontics: a literature review. J Prosthet Dent 1983;49(3):363–370. DOI: 10.1016/0022-3913(83)90279-2.
  20. Ahmadzadeh A, Neshati A, Sarbazi AH. A comparison between shear bond strength of VMK master porcelain with three base-metal alloys (Ni-Cr-T3, VeraBond, Super Cast) and one noble alloy (X-33) in metal-ceramic restorations. J Dent (Shiraz) 2013;14(4):191–196.
  21. Kassapidou M, Stenport VF, Hjalmarsson L, et al. Cobalt-chromium alloys in fixed prosthodontics in Sweden. Acta Biomater Odontol Scand 2017;3(1):53–62. DOI: 10.1080/23337931.2017.1360776.
  22. Setcos JC, Babaei-Mahani A, Silvio LD, et al. The safety of nickel containing dental alloys. Dent Mater 2006;22(12):1163–1168. DOI: 10.1016/j.dental.2005.11.033.
  23. Spencer P, Misra A. Material-Tissue Interfacial Phenomena: Contributions from Dental and Carnifacial Reconstruction. Woodhead Publishing; 2016.
  24. Dentistry – Compatibility testing – Part 2: Ceramic-ceramic systems, International Organization for Standardization, ISO 9693-2:2016.
  25. Shah SA, Naqash TA, Padmanabhan TV, et al. Influence of time of placement of investments for burnout and the type of rings being used on the casting accuracy. J Indian Prosthodont Soc 2014;14(1): 67–71. DOI: 10.1007/s13191-013-0264-8.
  26. Dimitriadis K, Papadpoulus T, Agathopulus S. Effect of bonding agent on metal-ceramic bond strength between Co-Cr fabricated with selective laser melting and dental feldspathic porcelain. J Prosthodont 2018;10(1):25–35. DOI: 10.4047/jap.2018. 10.1.25.
  27. Kweon H, Choi S, Kim Y, et al. Development of a new UTM (universal testing machine) system for the nano/micro in-process measurement. Int J Modern Phys B 2006;20(25n27):4432–4438. DOI: 10.1142/S0217979206041471.
  28. Kim HY. Analysis of variance (ANOVA) comparing means of more than two groups. Restor Dent Endod 2014;39(1):74–77. DOI: 10.5395/rde.2014.39.1.74.
  29. Kundie F, Azhari CH, Ahmad ZA. Effect of nano- and micro-alumina fillers on some properties of poly(methyl methacrylate) denture base composites. J SErb Chem Soc 2018;83(1):75–91. DOI:10.2298/JSC170118056K.
  30. Sundeep D, Vijaya Kumar T, Rao PSS, et al. Green synthesis and characterization of Ag nanoparticles from Mangifera indica leaves for dental restoration and antibacterial applications. Prog Biomater 2017;6(1–2):57–66. DOI: 10.1007/s40204-017-0067-9.
  31. Sundeep D, Kumar TV, Kumar MK, et al. Mechanical milling influence on lattice vibrational behaviour of MoO3–V2O5 composite nanopowders. Silicon 2019;11:1517. DOI: 10.1007/s12633-018-9972-3.
  32. Sundeep D, Gopala Krishna A, Ravikumar RVSSN, et al. Spectral characterization of mechanically synthesized MoO3–CuO nanocomposite. Int Nano Lett 2016;6:119. DOI: 10.1007/s40089-015-0178-z.
  33. Ravikumar RVSSN, Sundeep D, Gopala Krishna A, et al. Spectral investigation of structural and optical properties of mechanically synthesized TiO2–V2O5 nanocomposite powders. Mater Today Proceed 2016;3(1):31–38. DOI: 10.1016/j.matpr.2016.01.114.
  34. Bloch HP, Geitner FK. Machinery failure analysis and troubleshooting, vol. 2 1999. pp. 1–668.
  35. Amitoj SM, Evans CA, Viana G, et al. Bonding of metal orthodontic attachments to sandblasted porcelain and zirconia surfaces. Biomed Res Int 2016;2016:5762785. DOI: 10.1155/2016/5762785.
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