Inclusion Criteria:  Children who look for dental treatment Children with at least one primary molar with clinical and/or radiographic signs of pulpal involvement Formal consent of the children's parents or legal guardians agreeing with the participation of the children Write or verbal assent of the children in participating of the study  Exclusion Criteria:  Children with special needs Children with report of allergy to the medications used in the pastes Children with a negative behavior in the inclusion session