JOURNAL OF PERIODONTOLOGY, vol.82, no.9, pp.1320-1328, 2011 (SCI-Expanded)
Background: The aim of this study is to investigate the impact of smoking status on the systemic and local superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and catalase (CAT) activities and malondialdehyde (MDA) levels in subjects with chronic periodontitis (CP).