If the patient has more than six teeth that meet the inclusion criteria, the selection of the premolars and molars to be included in the clinical trial will be conducted randomly by scenarios randomized by the investigator of the statistical area after participation and contact for the effect (not done a priori, since it is necessary 19448 scenarios prior randomization before observing any patient, whereas the possible teeth be selected for treatment is between 6 and 16 and the teeth to select from 6).