Resumo

GALZO, Rubia Fernanda Lima; BRITTO, Maria Leticia Borges; MACHADO, Manoel Eduardo de Lima  e  NABESHIMA, Cleber Keiti. Evaluation of the antibacterial activity of different temporary restorative materials. Rev. Assoc. Paul. Cir. Dent. [online]. 2014, vol.68, n.3, pp. 250-253. ISSN 0004-5276.

The aim of this study was to evaluate the antibacterial activity of different temporary restorative materials: Zinc oxide and eugenol, ready-to-use zinc oxide, resin-based (Bioplic) and Gutta-percha. Ten samples of each material were placed into wells done on m-enterococcus agar contaminated with Enterococcus faecalis. Empty wells were the control group. The plates were incubated at 37°C for 24 hours, and the inhibition zone around the materials was analyzed. Data were submitted to Kruskal-Wallis complemented by Dunn's test (p <0.05). The results showed that the zinc oxide and eugenol showed greater inhibition zone compared to gutta-percha and resin-based material, no significant difference was found between them and ready-to-use zinc oxide. Ready-to-use zinc oxide was significant difference to control group of growth inhibition zero. It can be concluded that after 24 h, the zinc oxide and eugenol has more antibacterial effect than resin-based material and gutta-percha, but it showed similarity to ready-to-use zinc oxide.

Palavras-chave : dental restoration; temporary; endodontics; enterococcus faecalis.