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Correa, G.T.B. et al. 2009. Cytotoxicity evaluation of two root canal sealers and a commercial calcium hydroxide paste on THP1 cell line by Trypan Blue assay .
Journal of Applied Oral Science. 17, 5 (Oct. 2009), 457–461
. DOI:https://doi.org/10.1590/S1678-77572009000500020.