IADR Abstract Archives
Influence of Peracetic Acid in Precision of Stone Casts
Objectives: The impression is a step very important to the success of rehabilitation treatments that requiring casts. However, to avoid cross-contamination is essential disinfection of the impression material.
Considering the high microbicidal efficacy of peracetic acid, the aim of this study was to evaluate the possibility of this disinfectant substance alter vinyl polysiloxane molds.
Methods: Using three groups (n = 12): immersion for 10 minutes in distilled water (Group 1), immersion for 10 minutes in peracetic acid (Group 2) and without immersion (Group 3-control).
The analysis of surface roughness and linear change of the stone castwere performed. Data from linear change analyzed by ANOVA, complemented by multiple comparisons by the Tukey test, and the data roughness also evaluated by analysis of variance, but with the Welch correction for heterogeneity of variance, complemented by multiple comparisons Games -Howell test appropriate in this case, considering a significance level of 5%.
Results: The linear change of group 2 was the largest and one of the group 1 equivalent to control (group 3). Regarding the surface roughness, the groups 1 and 2 were similar, even though the absolute values of the second group was higher, both significantly greater than the average control.
Conclusions: With the limitations of this study, in conclusion percetic acid promotes linear change in casts and the method of immersion promotes higher values of roughness.
Considering the high microbicidal efficacy of peracetic acid, the aim of this study was to evaluate the possibility of this disinfectant substance alter vinyl polysiloxane molds.
Methods: Using three groups (n = 12): immersion for 10 minutes in distilled water (Group 1), immersion for 10 minutes in peracetic acid (Group 2) and without immersion (Group 3-control).
The analysis of surface roughness and linear change of the stone castwere performed. Data from linear change analyzed by ANOVA, complemented by multiple comparisons by the Tukey test, and the data roughness also evaluated by analysis of variance, but with the Welch correction for heterogeneity of variance, complemented by multiple comparisons Games -Howell test appropriate in this case, considering a significance level of 5%.
Results: The linear change of group 2 was the largest and one of the group 1 equivalent to control (group 3). Regarding the surface roughness, the groups 1 and 2 were similar, even though the absolute values of the second group was higher, both significantly greater than the average control.
Conclusions: With the limitations of this study, in conclusion percetic acid promotes linear change in casts and the method of immersion promotes higher values of roughness.