Inclusion Criteria:  individuals with moderate/high risk of caries the presence of one or more noncavitated interproximal caries lesions with radiolucencies involving the outher half of enamel up to the outer third of dentin in bite-wing radiographies (lesion depth: E1, E2, D1) vital posterior teeth without cavitation in which the clinically active non-carious lesion had Only one tooth per patient was included in the study  Exclusion Criteria:  incapable of contracting pregnancy presence of secondary caries or restoration in the involved tooth lack of contact teeth incapable of contracting