• Franziska Struch, Christian Schwahn, Henri Wallaschofski, Hans J Grabe, Henry Völzke, Markus M Lerch, Peter Meisel, and Thomas Kocher.
• Unit of Periodontology, University of Greifswald, Greifswald, Germany.
• J Gen Intern Med. 2008 Mar 1; 23 (3): 260266260-6.

BackgroundPatients with halitosis contact primary care practitioners, dentists, and gastroenterologists alike.ObjectivesIt is unclear whether gastroesophageal reflux disease (GERD) is a risk factor for halitosis. DESIGN AND PATIENTS/PARTICIPANTS: We studied this possible relationship in the general population using the cross-sectional Study of Health in Pomerania (SHIP). Employing structured interviews, self-reported halitosis was assessed among 417 edentulous (toothless) subjects aged 40 to 81 years and among 2,588 dentate subjects aged 20 to 59 years. The presence of heartburn or acid regurgitation (GERD-related symptoms) at 4 levels (absent, mild, moderate, severe) was taken as exposure and used for logistic regression. Analyses were adjusted for relevant confounders, such as age, sex, depressive symptoms, history of chronic gastritis, history of gastric or duodenal ulcer, smoking, school education, and dental status.Measurements And Main ResultsWe found a strong positive association between GERD-related symptoms and halitosis (odds ratio 12.94, 95% confidence interval (CI) 2.66-63.09, P = 0.002 for severe compared to no GERD-related symptoms) in denture-wearing subjects and a moderate, positive association between GERD-related symptoms and halitosis (odds ratio 2.24, 95% CI 1.27-3.92, P = 0.005) in dentate subjects with a clear dose-effect relationship.ConclusionsThe present study provides clear evidence for an association between GERD and halitosis. As there are effective treatments for GERD, these results suggest treatment options, such as proton pump inhibitors, for halitosis. These should be studied in randomized controlled trials.

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