Faria, Adriana Cláudia Lapria, et al. “ Effect of Temperature Variation on the Cytotoxicity of Cast Dental Alloys and Commercially Pure Titanium ”. Journal of Applied Oral Science, vol. 17, no. 5, Oct. 2009, pp. 421-6, https://doi.org/10.1590/S1678-77572009000500013.