Resumo

PITHON, Matheus Melo et al. In vitro cytotoxicity of Listerine® mouthwash. Rev. cir. traumatol. buco-maxilo-fac. [online]. 2011, vol.11, n.4, pp. 83-88. ISSN 1808-5210.

Objective: Evaluate the cytotoxicity of Listerine mouthwash in different time periods. Materials and Methods: We evaluated the mouthwash Listerine: Mint Vanilla, Classic, Cool Citrus, Mint, Control and Tarta Whitening at different times: 1, 15, 30, 45, 60 and 120 seconds as their cytotoxic effect on gingival fibroblasts L929. We used three control groups: positive (C +) cell detergent Tween 80 was negative (C-), PBS, and cell control (CC) where the cells were not exposed to any material. The cytotoxicity assay was performed using cell culture of mouse fibroblast (L929). After contacting the mouthwash with the cells, they were placed in contact with the vital dye neutral red used the technique (dye uptake). The values of the amount of viable cells, were subjected to analysis of variance (ANOVA) to determine whether there were statistical differences between groups, and subsequently Tukey test (p <0.05). Results: The results showed that all mouthrinses showed cytotoxicity at all times evaluated. The most cytotoxic were Tarta Control and Whitening, and showed less cytotoxicity than was the Classic. This cytotoxicity was directly proportional to exposure time to cell cultures. Conclusion: It can be concluded with the completion of this work showed that all mouthrinses evaluated cytotoxicity

Palavras-chave : Cytotoxicity; Mouthwashes; Cell culture.