[1] Ondokuz Mayis Univ, Dept Periodontol, Fac Dent, Samsun, Turkey
[2] Biruni Univ, Dept Periodontol, Fac Dent, Istanbul, Turkey
[3] Hacettepe Univ, Dept Med Biochem, Fac Med, Ankara, Turkey
[4] Istanbul Aydin Univ, Dept Periodontol, Fac Dent, Istanbul, Turkey