Nickel-chromium (Ni-Cr) alloys used in fixed prosthodontics have been associated with type IV Ni-induced hypersensitivity. We hypothesised that the full-thickness human-derived oral mucosa model employed for biocompatibility testing of base-metal dental alloys would provide insights into the mechanisms of Ni-induced toxicity. Primary oral keratinocytes and gingival fibroblasts were seeded onto ...

Nickel in elemental form or alloyed with other metals or materials has made significant contribution to our present day society. Nickel and nickel alloys are the class of advanced material that are are identified as candidate materials for marine applications and vitally important to aerospace, automotive industries because of their ability to withstand a wide variety of severe operating condit...

Ceramometal bond strength has played an important role for the replacement of gold alloys by nickel-chromium alloys in dentistry. This study evaluated the metal/porcelain bond strength of three ceramic systems (Vita VMK 88, Williams and Duceram) associated with three nickel-chromium alloys (Durabond, Lite Cast B and Resistal P) and one experimental cobalt-chromium-titanium alloy. Thirty cast cy...

The effects of Cr and Ni on three different types steel with carbon ratios under constant conditions such as the welding current 120A, voltage 80V, Diameter 10 mm angle 60 degree was observed. Nickel percentage up to 0.147% Chromium 0.083% contributed affecting mechanical properties steel. Undissolved carbide particles refine austenite grain size. In presence nickel, chromium is less effective ...