 The aim of this study was to evaluate the effects of periodontal treatment on gingival crevicular fluid GCF levels of NeopterinN and vascular cell adhesion molecule VCAM-1 in chronic periodontitisCP patients with acute myocardial infarctionAMI in comparison to systemically healthy CP patients. The investigators hypothesized that severe CP may play a role in initiating or exacerbating MI and there is an increased risk for AMI among systemically healthy persons affected with severe CP. 