Results Eluates obtained after 24 h of incubation with the resin filler did not reduce cellular viability. An increase in cellular viability, as compared with control cells, was observed in the gutta-percha group. The undiluted eluate from the polyether material was cytotoxic, causing an 82 ± 4% decrease in cellular viability. Eluates obtained after 48 h of incubation with
the resin filler increased cellular viability, whereas the polyether significantly reduced viability. Gutta-percha did not cause any detectable change. After 72 h of incubation the eluate of the resin filler caused an increase in cellular viability, as did gutta-percha, whereas polyether caused a significant decrease.

R. Scotti, , R. Tiozzo, , C. Parisi, M. A. Croce & P. Baldissara.
Department of Dental Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy; and Department of Biomedical, Sciences, University of Modena and Reggio Emilia, Modena, Italy

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