Inclusion Criteria:  Patients:  19-35 years of age; Good general health; High risk of caries; No evident signs of occlusal parafunctions.  Tooth:  Molar tooth; 3-4 mm depth occlusal dentin caries; Vital; In occlusion; Proper tooth axes.  Exclusion Criteria:  Patient:  Using regular medication; Pregnancy or lactation; Received radiotherapy or chemotherapy; Tooth clenching, bruxism.  Tooth:  Spontaneous pain; Radiographic alterations in the periapical region; Presence of tooth mobility; Previously restored; Broken and/ or cracked.