The objective of this study was the standardization of statistical analyses of the projects carried out by the Labeest. Saliva samples were collected along a week of physician residents, interns. Analysis was performed between years of residence and between different days in the same year. Tests of normality followed by parametric and nonparametric analyses where appropriate, the value of p ≤ 5 was indicative of significance between the data. There were differences between years and days evaluated.