Materials and Methods: A total of 88 women were into four groups each which were consisted of twenty-two subjects. Groups were designed as periodontally and systemically healthy women (PCOS-CP-); periodontally healthy women with polycystic ovary syndrome (PCOS) (PCOS+CP-), systemically healthy women with CP (PCOS-,CP+) and women with PCOS and CP (PCOS+CP+). Serum and salivary samples were obtained, clinical periodontal parameters were recorded. MDA, TAS, 8-OHdG levels were measured as biochemically.