Is the presence of Helicobacter pylori in the Dental Plaque of Patients with Chronic Periodontitis a Risk Factor for Gastric InfectionReport as inadecuate

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Canadian Journal of Gastroenterology - Volume 23 2009, Issue 3, Pages 177-179

Original Article

College of Dentistry, King Saud University, Riyadh, Saudi Arabia

Department of Gastroenterology, College of Medicine, King Saud University, Riyadh, Saudi Arabia

Received 4 September 2008; Accepted 30 October 2008

Copyright © 2009 Hindawi Publishing Corporation. This open-access article is distributed under the terms of the Creative Commons Attribution Non-Commercial License CC BY-NC, which permits reuse, distribution and reproduction of the article, provided that the original work is properly cited and the reuse is restricted to noncommercial purposes.


BACKGROUND: Helicobacter pylori is considered to be a pathogen responsible for gastritis and peptic ulcers, and a risk factor for gastric cancer. A periodontal pocket in the teeth of individuals with chronic periodontitis may function as a reservoir for H pylori.

OBJECTIVE: The present study was undertaken to evaluate whether the presence of H pylori in the dental plaque of patients with and without periodontitis correlates with gastric involvement.

METHODS: A total of 101 patients with dyspepsia were included in the present study. Subjects were divided into periodontitis and non-periodontitis groups. For the detection of H pylori in dental plaque, samples were collected from two teeth using a periodontal curette. Subgingival plaque was obtained by inserting two sterile paper points into periodontal pockets for 20 s. This was followed by an upper gastrointestinal endoscopy and antral biopsies.

RESULTS: Sixty-five per cent of patients had dental plaque positive for H pylori and more than 50% harboured the bacteria in their stomach. Periodontitis patients had a significantly higher percentage of H pylori in their dental plaque 79% versus 43%; P<0.05 and the stomach 60% versus 33%; P<0.05 than patients with no periodontitis. Additionally, 78% of patients from the periodontitis group versus only 30% from the nonperiodontitis group had a positive test result for the coexistence of H pylori in both dental plaque and the stomach.

CONCLUSION: Patients with poor oral hygiene have a higher prevalence of H pylori in dental plaque and in the stomach. This finding suggests that the oral cavity may be a reservoir for H pylori, and potentially a source of transmission or reinfection.

Author: Mohammed Al Asqah, Nawaf Al Hamoudi, Sukumaran Anil, Abdulrahman Al jebreen, and Waleed Khalid Al-hamoudi



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