Two-year Clinical Performance of Ion-releasing and Conventional Bulk-fill Resin Composite Restorative Systems.

The goal of this clinical trial is to learn if ion-releasing composite works to induce remineralization in caries-affected dentin in adults. This study was designed to test the null hypothesis that there was no significant differences in: The two-year clinical performance of ion-releasing and conventional bulk-fill resin composite restorative systems. Participants: * received three different restorative systems * Visit the clinic once every 6 months for checkups and tests

Eligibility Criteria Inclusion Criteria: Male or female gender. Only cooperative patients are approved to participate in the trial Medically free adult patients. The age range of the patients is 20- 40 years who have at least three Class I carious lesions. Patients with normal occluusion Exclusion Criteria: Allergic history concerning methacrylates Pregnancy. Heavy smoking; xerostomia. Lack of compliance. Patients with disabilities. Patients who have systemic diseases or severe medically compromised patients. Patients with severe bruxism, clenching, or temporomandibular joint disorders.