Efeito do gás ozônio em dentina exposta a biofilme de S.mutans

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Universidade Federal de Goiás


The 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.



CHAVES, 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.