{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T16:11:21Z","timestamp":1791821481675,"version":"4.3.4"},"reference-count":0,"publisher":"Hindawi Limited","issue":"3","license":[{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Canadian Journal of Gastroenterology"],"published-print":{"date-parts":[[2009]]},"abstract":"<jats:p>BACKGROUND:<jats:italic>Helicobacter pylori<\/jats:italic>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<jats:italic>H pylori<\/jats:italic>.<\/jats:p><jats:p>OBJECTIVE: The present study was undertaken to evaluate whether the presence of<jats:italic>H pylori<\/jats:italic>in the dental plaque of patients with and without periodontitis correlates with gastric involvement.<\/jats:p><jats:p>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<jats:italic>H pylori<\/jats:italic>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.<\/jats:p><jats:p>RESULTS: Sixty-five per cent of patients had dental plaque positive for<jats:italic>H pylori<\/jats:italic>and more than 50% harboured the bacteria in their stomach. Periodontitis patients had a significantly higher percentage of<jats:italic>H pylori<\/jats:italic>in their dental plaque (79% versus 43%; P&lt;0.05) and the stomach (60% versus 33%; P&lt;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<jats:italic>H pylori<\/jats:italic>in both dental plaque and the stomach.<\/jats:p><jats:p>CONCLUSION: Patients with poor oral hygiene have a higher prevalence of<jats:italic>H pylori<\/jats:italic>in dental plaque and in the stomach. This finding suggests that the oral cavity may be a reservoir for<jats:italic>H pylori,<\/jats:italic>and potentially a source of transmission or reinfection.<\/jats:p>","DOI":"10.1155\/2009\/950527","type":"journal-article","created":{"date-parts":[[2016,3,15]],"date-time":"2016-03-15T08:08:31Z","timestamp":1458029311000},"page":"177-179","source":"Crossref","is-referenced-by-count":76,"title":["Is the presence of<i>Helicobacter pylori<\/i>in the Dental Plaque of Patients with Chronic Periodontitis a Risk Factor for Gastric Infection?"],"prefix":"10.1155","volume":"23","author":[{"given":"Mohammed","family":"Al Asqah","sequence":"first","affiliation":[{"name":"College of Dentistry, King Saud University, Riyadh, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nawaf","family":"Al Hamoudi","sequence":"additional","affiliation":[{"name":"College of Dentistry, King Saud University, Riyadh, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sukumaran","family":"Anil","sequence":"additional","affiliation":[{"name":"College of Dentistry, King Saud University, Riyadh, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abdulrahman","family":"Al jebreen","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology, College of Medicine, King Saud University, Riyadh, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Waleed Khalid","family":"Al-hamoudi","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology, College of Medicine, King Saud University, Riyadh, Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"98","container-title":["Canadian Journal of Gastroenterology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/cjgh\/2009\/950527.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/cjgh\/2009\/950527.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2016,8,23]],"date-time":"2016-08-23T16:22:56Z","timestamp":1471969376000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.hindawi.com\/journals\/cjgh\/2009\/950527\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009]]},"references-count":0,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2009]]}},"alternative-id":["950527"],"URL":"https:\/\/doi.org\/10.1155\/2009\/950527","relation":{},"ISSN":["0835-7900"],"issn-type":[{"value":"0835-7900","type":"print"}],"subject":[],"published":{"date-parts":[[2009]]}}}