Assessment of Fracture Strength of Metal and Bond Strength between Metal–Ceramic on Recycled Ni–Cr Alloy—An In Vitro Study
Aim: The research objective is to determine how nickel–chromium alloy recycling affects the fracture and adhesive strength of metal–ceramics. Materials and Methods: A set of 100 nickel–chromium alloy samples were sorted into five groups of 20 each. A0 Group is the control group, containing 100% new...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2025-06-01
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| Series: | Journal of Pharmacy and Bioallied Sciences |
| Subjects: | |
| Online Access: | https://journals.lww.com/10.4103/jpbs.jpbs_1894_24 |
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| Summary: | Aim:
The research objective is to determine how nickel–chromium alloy recycling affects the fracture and adhesive strength of metal–ceramics.
Materials and Methods:
A set of 100 nickel–chromium alloy samples were sorted into five groups of 20 each. A0 Group is the control group, containing 100% new alloy, while A1, A2, A3, and A4 Groups had been created using 50% novel alloy and half percent residue from previous groups. The ceramic material was applied to the metal samples, and the adhesive strength at metal–porcelain junction was determined using a three-point flexure test on a universal tester. The resistance of metal to fracture was assessed by applying load even after the ceramic material had debonded.
Results:
The research revealed that Group A0 showed the finest bond and fracture strengths, whereas Group A4 had the lowest. However, in terms of resistance of the metal sample to fracture, no much difference was noticed.
Conclusion:
Using 100% new Ni–Cr alloy outperforms the competition in bond and fracture strength for porcelain fused metal restorations. |
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| ISSN: | 0976-4879 0975-7406 |