NURCAN OZAKAR ILDAY NESLIHAN CELIK ALPARSLAN DILSIZ HAMIT HAKAN ALP TUBA AYDIN NILGUN SEVEN AHMET KIZILTUNÇ The effects of overhang amalgam restorations on levels of cytokines gingival crevicular fluid volume and some periodontal parameters American Journal of Dentistry Vol 29 No 5 October 2016 SCI EXPANDED