A dental crown material,Nickel-Chrome-Molybdenum alloy, is manufactured using precision castingmethod froma polyurethane\r\nfoammodel in a regular and open-pore form, as a hard tissue implant for orthopedic applications.Thesamples produced have 10, 20,\r\nand 30 (�±3) pores per inch of pore densities and 0.0008, 0.0017, and 0.0027 g/mm3 densities, respectively. Samples were implanted\r\nin six dogs and observed for a period of two, four, and six months for the histopathological examinations.The dogs were examined\r\nradiologically in 15-day intervals and clinically in certain intervals. The implants were taken out with surrounding tissue at the end\r\nof these periods. Implants and surrounding tissues were examined histopathologically in terms of biocompatibility. As a result, it\r\nis seen that new bone tissue was formed, in pores of the porous implant at the head of the tibia in dogs implanted. Any pathology,\r\ninflammation, and reaction in old and new tissues were not observed. It was concluded that a dental alloy (Ni-Cr-Mo alloy) could\r\nalso be used as a biocompatible hard tissue implant material for orthopedics.
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