Comparison of the Functional Properties of Two Injectable Materials in Posterior Teeth: Randomized Clinical Trial

Inclusion Criteria: * 1-Adult patients (20-50) 2-Good oral hygiene Good oral hygiene (Plaque index ≤2 (Moderate accumulation with plaque in the sulcus)) 3-Patient approval 4-Absence of parafunctional habits and/or bruxism 5-No endodontic treatment or abscess 6- class II either mesial or distal (no MOD cavities) Exclusion Criteria: * 1\. Systematic disease that may affect participation. 2. Xerostomic patients. 3. Bad oral hygiene (plaque index 2 or 3) 14 4. Heavy smokers 5. Patients undergoing or will start orthodontic treatment 6. Signs and symptoms of irreversible pulpitis.