2022-10-052022-10-052011-12-20CHAVES, R. M. Efeito do gás ozônio em dentina exposta a biofilme de S.mutans. 2011. 92 f. Dissertação (Mestrado em Odontologia) - Universidade Federal de Goiás, Goiânia, 2011.http://repositorio.bc.ufg.br/tede/handle/tede/12352The present study aims to assess the affect of ozone gas in dentin exposed to biofilm of Streptococcus mutans by the evaluation of mineral content (Log Ca/P) of dental substrate using the tool Spectroscopy Dispersive Energy-EDS. Five human third molars were sectioned in to four slices of dentin and divided into four groups: Group I, control (no treatment); Group II, ozone therapy; Group III, biofilm development; and Group IV, ozone therapy followed by biofilm development. The mineral content (Log Ca/P) was evaluated by EDS. The data were tabulated and assessed by repeated measure one-way analysis of variance (ANOVA) and the Tukey test (p<0.05). The Group I-Control was similar to the Group II-Ozone and was statistically different from Group III-Biofilm and Group IV-Ozone+Biofilm. The lowest Log Ca/P was determined in Biofilm Group. Our findings show that the application of gas ozone didn’t confer preventive effect on the dentin surface under the challenge of oral biofilm.Attribution-NonCommercial-NoDerivatives 4.0 InternationalOzônioCárie dentáriaPlaca dentalDentinaOzoneDental cariesDental plaqueDentinCIENCIAS DA SAUDE::ODONTOLOGIADissertação