Biological safety of Ni-Cr alloy fabricated by laser solid forming technology
- VernacularTitle:激光立体成形镍铬烤瓷合金的生物安全性评价
- Author:
Yan JIA
;
Bo GAO
- Publication Type:Journal Article
- Keywords:
laser solid forming;
Ni-Cr alloy;
biological safety;
dental materials
- From:Journal of Third Military Medical University
2003;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the biological safety of a Ni-62.9Cr-23 alloy fabricated by laser solid forming technology.Methods According to the requirements of national standards GB/T16886-2003,YY/T0279-1995 and YY/T0244-1996,general cytotoxicity,acute systemic toxicity,hemolysis testing,oral mucous membrane irritation testing were used to evaluate the alloy.Results The alloy was indicated having no cytotoxicity and with a hemolytic rate of 0.385%.The oral mucous membrane irritation testing showed that the alloy had no mucous membrane irritation.The acute systemic toxicity test indicated that the alloy had no acute systemic toxicity.Conclusion The Ni-62.9Cr-23 alloy has good biological safety in a certain extent.
