Evaluation of Ion Releasing Hybrid Restorative Material

Inclusion Criteria: * Patient-related criteria: * Patients consulting in one of the outpatient clinics listed above. * Patients can tolerate necessary restorative procedures. * Provide informed consent. * Patients accept the one year follow-up period. * Patients are within middle age group (25-40years). * Cooperative patients. * Patients don't have any medically compromised conditions. Tooth related criteria: * Teeth with primary proximal carious lesions in posterior teeth with no pulpal involvement. * Teeth should have contact with the adjacent teeth. * Teeth are vital according to pulp-sensitivity tests. * No active gingival or periodontal conditions. Exclusion Criteria: * • Medically compromised patients, as they will not be able to attend multiple appointments or may require special management. * Pregnant women; as radiographs are prohibited. * Allergic Patients to any of the restorative materials, including anesthetics. * Uncooperative patients will not follow the instructions or attend the appointments. Tooth related criteria: * Retained deciduous teeth; as the research is targeting only permanent teeth. * Teeth with previous restorations, which may add another variable to the study (type of old restorative material, extent of recurrent caries). * Spontaneous pain or prolonged pain after sensitivity tests (cold and electrical tests) indicating irreversible pulpitis. * Negative sensitivity tests, periapical radiolucencies, and sensitivity to axial or lateral percussion indicating pulp necrosis. * Teeth presenting external or internal resorption, with adverse pulpal reactions which may affect the outcome of the study. * Teeth with cervical caries; which can't be evaluated on periapical radiographs.