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Epidemiological studies indicate that individuals with severe periodontal disease have significantly increased risk for cardiovascular disease. Periodontal disease, a chronic bacterial infection of the gums, is associated with recurrent bacteremia and a state of systemic inflammation that may convert endothelial cells to a pro-atherogenic phenotype with increased expression of inflammatory factors and loss of the anti-thrombotic, growth inhibitory, and vasodilator properties of the endothelium, including a decrease in the biological activity of nitric oxide. In human subjects, endothelial dysfunction has evolved into a well-accepted indicator of early atherosclerosis and predictor of increased cardiovascular disease risk. We have recently demonstrated a strong association between severe periodontal disease and endothelial vasomotor dysfunction in a case control study of otherwise healthy human subjects. In that study, periodontal disease was also associated with higher plasma levels of the acute phase reactant C-reactive protein (CRP). These results support the hypothesis that severe periodontal disease induces a state of systemic inflammation that impairs endothelial function, however, the cross-sectional design leaves open the possibility that confounding factors explain the results. We now propose to determine whether effective treatment of periodontal disease improves endothelial function (Aim 1) and reduces inflammation (Aim 2) in a randomized intervention study. Patients will receive comprehensive periodontal treatment designed to produce a state of periodontal health (scaling and root planing and periodontal surgery with re-treatment as needed) or routine oral hygiene and will be followed for 24 weeks. The study will examine endothelium-dependent brachial artery flow-mediated dilation, systemic markers of inflammation and endothelial activation (CRP, IL-6, myeloperoxidase, and ICAM-1), and oral markers of periodontitis (PGE2, myeloperoxidase, and pathogen DNA) before and after treatment. Compared to oral hygiene (which will stabilize, but not reverse periodontal disease), we hypothesize that comprehensive treatment of periodontal disease will improve endothelium-dependent dilation and reduce local and systemic inflammation. Further, we suggest that the degree of improvement in endothelial function will relate to the degree of reduction in specific markers of inflammation. Such results would provide much stronger evidence for causal links between periodontal disease, systemic inflammation, and endothelial dysfunction, a recognized surrogate for cardiovascular risk. The proposed studies will provide new insights into how periodontal disease contributes to cardiovascular disease risk in human subjects and may lead to new approaches to therapy.
Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Efficacy Study, Intervention Model: Factorial Assignment, Masking: Single Blind (Investigator), Primary Purpose: Treatment
Boston University Medical Campus
Published on BioPortfolio: 2014-08-27T03:54:00-0400
The purpose of this study is to determine if treating periodontal infections (gum disease) will reduce markers of systemic inflammation in patients at risk of cardiovascular diseases.
The purpose of this study is to determine if treating periodontal infections (gum problems) will lead to fewer heart problems in patients at high risk for cardiovascular disease.
The purpose of this study is to determine the effect of periodontal therapy on endothelial function and other biomarkers of cardiovascular disease
The objective of this study was the evaluation of periodontal condition in pregnant women and the effect of the treatment of periodontal disease upon low birth weight.
To access the influence of triclosan dentifrice on the progression of periodontal disease in patients with coronary heart disease.
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Any restorative and replacement device that is used as a therapeutic aid in the treatment of periodontal disease. It is an adjunct to other forms of periodontal therapy and does not cure periodontal disease by itself. (Boucher's Clinical Dental Terminology, 3d ed)
Loss or destruction of periodontal tissue caused by periodontitis or other destructive periodontal diseases or by injury during instrumentation. Attachment refers to the periodontal ligament which attaches to the alveolar bone. It has been hypothesized that treatment of the underlying periodontal disease and the seeding of periodontal ligament cells enable the creating of new attachment.
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A numerical rating scale for classifying the periodontal status of a person or population with a single figure which takes into consideration prevalence as well as severity of the condition. It is based upon probe measurement of periodontal pockets and on gingival tissue status.
Restoration of functions to the maximum degree possible in a person or persons suffering from a CARDIOVASCULAR DISEASE. It also includes cardiac conditioning and SECONDARY PREVENTION in patients with elevated cardiovascular risk profile.
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