Purpose: Periodontitis has been associated with atherosclerotic cardiovascular lesions. There may be a link between periodontopathic bacterial infection and atherosclerosis.
Methods: In 53 patients with atherosclerosis, periodontal disease was classified according to the probing depth of the periodontal pocket. To compare the detection rate in different arterial lesion, specimens of diseased arteries (10 primary atherosclerotic lesions, 43 anastomotic lesions) and 21 control arteries without atherosclerotic findings macroscopically and microscopically in the arterial wall, obtained during the surgical procedures were examined for the presence of five species of putative periodontal bacteria using polymerase chain reaction (PCR) analysis.
Results: Fifty-one of the 53 patients (96%) had periodontitis, and 34 (64%) of those patients had severe periodontitis or were edentulous. In total, PCR analysis detected DNA specific for periodontal bacteria in 28 of the 53 specimens (52%) of atherosclerotic arterial wall. Only 5 of 21 (23%) were detected in control specimens.
Conclusions: A high percentage of periodontopathic bacteria were detected in atherosclerotic arterial wall specimens from patients with atherosclerosis, especially with primary atherosclerotic lesions, and most cases had severe periodontitis.
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