In the present clinical study including chronic, aggressive periodontitis and healthy individuals, the investigators aimed to determine the RANKL, osteoprotegrin (OPG), Interleukin-1 (IL-1β), IL-10, IL-1β levels in gingival crevicular fluid(GCF) before and after surgical periodontal treatment and search out the relationship of clinical parameters with these cytokine levels.

Inclusion Criteria:

• Chronic periodontitis having at least 5mm or more probing depth and aggressive periodontitis patients.

Exclusion Criteria:

• Any known systemic disorder, used antibiotics and/or anti-inflammatory medications, had periodontal treatment in the last 3 months and all of them were non smokers. Subjects who were lactating and pregnant were also excluded.

Individulas that applied to periodontology clinic in faculty of dentistry, Hacettepe University.