<qa>  What is the risk of AMI among systemically healthy persons affected with severe CP?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. 