Clinical Research Directory

Inclusion Criteria: * Children aged between 4-9 years. * Children who have Class I lesions in both the maxillary and mandibular arches. * Primary molar teeth had class I carious lesions in occlusal pits and fissures; the gap between intercuspal surfaces should not be exceeded during cavity preparation. * Primary molars free of periapical pathosis. * Primary molars free root resorption. Exclusion Criteria: * Primary molars with preapical pathosis or hypersensitivity. * Primary molars with periodontal diseases or mobile molar tooth that indicated for extraction. * Nonfunctioning teeth with no opposing dentition; heavy occlusion or signs of severe attrition; and endodontically treated teeth.