GCF Levels of Chemokines in Periodontitis

In all of the patients, the following indexes were used routinely for the periodontal examination: Sillness-Löe's plaque index (PI) (Silness \& Löe, 1964), Löe-Sillness's gingival index (GI)(Löe \& Silness, 1963), probing depth (PD) to measure the extent and severity of periodontal disease, clinical attachment level (CAL), and bleeding on probing (BOP)(Ainamo \& Bay, 1975) to determine activity. In addition, routine radiographic evaluations were performed to determine bone levels.GCF samples were collected using standardized filter papers.