Chronic obstructive pulmonary disease exacerbations and periodontitis: a possible association

Background There is an increasing interest concerning the potential link between both chronic obstructive pulmonary disease (COPD) and chronic periodontitis; therefore the association became the research focus. Objective This study intended to evaluate the potential association between the frequency of COPD exacerbations and chronic periodontitis. Patients and methods A total of 250 male patients with COPD were included in the study and were categorized into two groups according to the frequency of exacerbations per year: group 1 had patients with frequent exacerbations (having ≥2 exacerbations in last year) and group 2 had patients with infrequent exacerbations (having