Relationships Between Tenascin C, Smoking and Periodontal Status

"Saliva samples will be collected from all patients. Clinical parameters will also be recorded. Plaque index (PI) and gingival index (GI) will be recorded at four sites per tooth. Full-mouth probing depth (PD) and clinical attachment level (CAL) will be detailed per tooth at six sites, and the percentage of bleeding areas will be recorded as present or absent within 20 seconds after probing using a binary scoring system. A calibrated periodontologist will record all clinical parameters using manual probing.~Following sampling, saliva samples will be stored at -80°C until analysis. Concentrations of Tenascin-C, IL-4, IL-6, and IL-1beta will be analyzed by specific enzyme-linked immunosorbent assay (ELISA) kits in saliva samples."