Treated periodontitis and recurrent events after first‐time myocardial infarction: A Danish nationwide cohort study

Abstract

AbstractAimTo investigate the association between previous periodontal treatment and recurrent events after first‐time myocardial infarction (MI).Materials and MethodsFrom the Danish nationwide registries, patients with first‐time MI between 2000 and 2015 were divided into three groups according to oral health care within 1 year prior to first‐time MI. A multiple logistic regression model provided adjusted odds ratios (ORs) with 95% confidence intervals (CIs) to assess the 3‐year risk of major adverse cardiovascular events (MACE).ResultsA total of 103,949 patients were included. Patients with treated periodontitis (PD) prior to first‐time MI had an adjusted 3‐year risk of MACE similar to patients presumed periodontally healthy (OR 0.97 [95% CI 0.92–1.03]). Patients with no prior dental visits were significantly older, had more comorbidities and showed significantly increased adjusted 3‐year risks of MACE (OR 1.47 [95% CI 1.42–1.52]), cardiovascular death (OR 1.71 [95% CI 1.64–1.78]) and heart failure (OR 1.13 [95% CI 1.07–1.20]) compared with patients presumed periodontally healthy.ConclusionsPatients with treated PD 1 year prior to first‐time MI had a similar risk of recurrent cardiovascular events as patients presumed periodontally healthy. No dental visit prior to first‐time MI was an independent risk factor for recurrent events.