Clinical and Radiographic Evaluation of Injectable Composite Versus Packable Composite in Restoring of Primary Molars

Inclusion Criteria: * Patients: * Children aged 4-8 years. * Medically free. Teeth: * Restorable Class II cavities. * Asymptomatic tooth. Pre-operative radiographic examination: * Absence of periapical or inter-radicular radiolucency. * Absence of widening of periodontal ligaments space. * Absence of internal or external root resorption. Exclusion Criteria: * Patients: * Uncooperative children. * Unable to attend follow-up visits. * Parents refuse to sign the informed consent. * Children participating in any other clinical trial involving fluoride therapy or other interventions that could directly influence caries development during the study period. Teeth: * Teeth which were previously restored. * Mobility. Pre-operative radiographic examination: * Caries extending deep sub-gingivally. * The tooth is about to exfoliate.