[excerpt] Germs found in dental plaque can make their way into the lungs and cause potentially fatal pneumonia in elderly nursing home patients, U.S. researchers reported on Tuesday.
Though the study was small, the researchers said they found clear evidence in eight patients who developed pneumonia while in the hospital that had originated from their own dental plaque.
"This is the first study to establish unequivocally a link between dental hygiene and respiratory infection," said Dr. Ali El-Solh of the University at Buffalo in New York, who led the study.
Writing in the latest issue of the journal Chest, El-Solh and colleagues said they tested 49 nursing home residents who were admitted to a nearby hospital with a high risk of pneumonia. They made molecular fingerprints of the bacteria found in each patient's mouth before he or she developed pneumonia.
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