The role of coping material type and collarles margin design toward fracture resistance of metal porcelain restoration
Keywords:
coping material, coping design, fracture resistance, metal porcelain restorationAbstract
Aims: Metal-porcelain restoration is currently the most popular restoration that can be used for the anterior teeth. However the collar coping design on facial margin gingiva causes dark and shadowed zone in gingival, which is called "Umbrella Effect". This situation can overcomed by using collarless coping design. But this coping design has weaknesses such as decrease the fracture resistance of retoration. In some previous studies, the type of coping material can also affect fracture resistance. this study aimed to determined the effect of the coping material tipe and collarless margin design on the fracture resistance of restoration. Material and Methode: A total of 24 samples of metal-porcelain restorations from two material type and design were fabricated and cemented on 24 metal dies. The study was divided into four groups; Group A with Ni-Cr and Full Metal Collarless, Group B with Ni-Cr and Modified Metal Collarless, Group C with Co-Cr and Full Metal Collarless, and Group D with Co-Cr and Modified Metal Collarless. The measurement of fracture resistance was carried out using universal testing machine (Torsee UTM AMU-10, Tokyo, Japan) at a crosshead speed of 0.05 mm/minute. Loading point was applied at an angle of 45° until the porcelain layer fractured.
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Bulbule, N. dan Motwani, B. K. Comparative Study of Fracture Resistance of Porcelain in Metal Ceramic Restorations by Using Different Metal Coping Designs: An in Vitro Study. Journal of Clinical and Diagnostic Research 2014, 8(11), pp. 123-127.
Chihargo, Tamin, H. Z, Nasution, I. The Influence of Coping Designs on Labio-Marginal towards Fracture Resistance of Metal-Porcelain Restoration. Journal of International Oral Health 2019, 11(2), pp.80-85
Danappanavar M P et all. Comparative Evaluation of Resistance Failure in Nonprecious Metal-Ceramic Restoration at the Incisal Edge with Varying Thickness under Different Application of Load: An in vitro Study. The Journal of Contemporary Dental Practice, 2011;12(6):434-440
Manoharan P. S et all, Comparative Analysis Of Fatique resistance, Fracture Stage and Fracture pattern in ceramic crowns with zirconia and direct metal laser sintered cure- An in Vitro Study. Journal Of Advance Clinic 2018.5, pp 92- 98.
Mirković N, et al. Effect of recasting on the thickness of metal-ceramic interface of nickel- chromium and cobalt-chromium alloys. Vojnosanit Pregl 2008; 65(5): 365–369.
Qiu J, Yu W-Q, Zhang F-Q, Smales RJ, Zhang Y-L, Lu C-H. Corrosion behaviour and surface analysis of a Co–Cr and two Ni–Cr dental alloys before and after simulated porcelain firing. Eur J Oral Sci 2011; 119: 93–101.
Rajnes K et all. Comparisson of bond strange and fracture toughness of metal ceramic restoration fabricated by conventional lost wax technique and SLS. International Journal Of Oral Care and research 2019.7(2), pp.43-45.
Rosenstiel, S. F., Land, M. F. dan Fujimoto, J. Contemporary Fixed Prosthodontics. 4th ed. St. Louis: Mosby Elsevier 2006, pp. 272, 615.
Sakaguchi RL, Powers JM. 2012. Craig's Restorative Dental Material 13 th ed St. Louis: Mosby Elsevier 2012, pp. 39
Shillingburg, H. T., Sather, D. A., Wilson, E. L., Cain, J. R., Mitchell, D. L., Blanco, L. J. dan Kessler, J. C. Fundamental of Fixed Prosthodontics. 4th ed. Chicago: Quintessence Publishing Co Inc 2012, pp. 447-469.
Vernekar, N. V., Jagadish, P. K., Diwakar, S., Nadgir, R. dan Krishnarao, R. Alternate Metal Framework Designs for the Metal Ceramic Prosthesis to Enhance the Esthetics. Journal of Advanced Prosthodontics 2011, 3, pp. 113-118
Yoon, J. W., Kim, S. H., Lee, J. B., Han, J. S. dan Yang, J. H. A Study on the Fracture Strength of Collarless Metal-Ceramic Fixed Partial Dentures. Journal of Advanced Prosthodontics 2010, 2(4), pp. 134-141
Youssef S. Al Jabbari. Physico-mechanical properties and prosthodontic applications of Co-Cr dental alloys: a review of the literature. J Adv Prosthodont 2014,6, pp.138-145
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