Comparison of Oxidant Stress Levels among Healthy, Chronic Periodontitis, and Ischemic Heart Disease Subjects with Presence or Absence of Chronic Periodontitis

The oxidant levels (H₂O₂, OH^-, NO, and O₂ ^-) are significantly hampered in periodontitis and IHD subjects as compared to healthy subjects. The oxidants, whether serum or salivary, did not always show the proportional change as a result of change in oxidant stress due to disease as positive correlation was observed only in the serum H₂O₂ and salivary NO radical levels and between serum superoxide dismutase radical and salivary H₂O₂ in Group I. In Group III, there was a positive correlation between serum NO radical and salivary H₂O₂.