Volume 40, Issue 6 pp. 583-590
Original Article

Subgingival Aggregatibacter actinomycetemcomitans associates with the risk of coronary artery disease

Päivi Mäntylä

Corresponding Author

Päivi Mäntylä

Institute of Dentistry, University of Helsinki, Helsinki, Finland

Address: Päivi Mäntylä, Institute of Dentistry, P. O. Box 41, Institute of Dentistry, 00014 University of Helsinki, Helsinki, Finland

E-mail: [email protected]

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Kåre Buhlin

Kåre Buhlin

Institute of Dentistry, University of Helsinki, Helsinki, Finland

Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden

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Susanna Paju

Susanna Paju

Institute of Dentistry, University of Helsinki, Helsinki, Finland

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G. Rutger Persson

G. Rutger Persson

Departments of Periodontics and Oral Medicine, University of Washington, Seattle, WA, USA

Department of Periodontology, University of Bern, Bern, Switzerland

Oral Health Sciences, University of Kristianstad, Kristianstad, Sweden

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Markku S. Nieminen

Markku S. Nieminen

Division of Cardiology, Department of Medicine, Helsinki University Central Hospital, Helsinki, Finland

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Juha Sinisalo

Juha Sinisalo

Division of Cardiology, Department of Medicine, Helsinki University Central Hospital, Helsinki, Finland

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Pirkko J. Pussinen

Pirkko J. Pussinen

Institute of Dentistry, University of Helsinki, Helsinki, Finland

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First published: 13 February 2013
Citations: 23

Conflict of interest and source of funding statement:

The authors declare that they have no conflict of interest.

The study was financially supported by the Academy of Finland (#118391), the Sigrid Juselius Foundation, the Finnish Dental Society Apollonia, Finnish Medical Society (Einar and Karin Stroems Foundation), Aarne Koskelo Foundation, and the Paulo Foundation.

Abstract

Aim

We investigated the association between angiographically verified coronary artery disease (CAD) and subgingival Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythia and Treponema denticola.

Materials and Methods

The cross-sectional study population (n = 445) comprised 171 (38.4%) patients with Stable CAD, 158 (35.5%) with acute coronary syndrome (ACS) and 116 (26.1%) with no significant CAD (No CAD). All patients participated in clinical and radiological oral health examinations. Pooled subgingival bacterial samples were analysed by checkerboard DNA–DNA hybridization assays.

Results

In all study groups, the presence of P. gingivalis, T. forsythia and T. denticola indicated a significant (p ≤ 0.001) linear association with the extent of alveolar bone loss (ABL), but A. actinomycetemcomitans did not (p = 0.074). With a threshold level of bacterial cells 1 × 105 A. actinomycetemcomitans was significantly more prevalent in the Stable CAD group (42.1%) compared to the No CAD group (30.2%) (p = 0.040). In a multi-adjusted logistic regression analysis using this threshold, A. actinomycetemcomitans positivity associated with Stable CAD (OR 1.83, 95% CI 1.00–3.35, p = 0.049), but its level or levels of other bacteria did not.

Conclusions

The presence of subgingival A. actinomycetemcomitans associates with an almost twofold risk of Stable CAD independently of alveolar bone loss.

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