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Exposure of Dentists to Mycobacterium tuberculosis, Ibadan, Nigeria

To determine the prevalence of Mycobacterium tuberculosis infection among dental patients and to assess dentists' risk for exposure, we conducted a study among dental patients at a large tertiary hospital in Nigeria, a country where tuberculosis is endemic. Ten (13%) of 78 sputum samples obtained were positive for M. tuberculosis.

We initiated this study to assess the risk for exposure of dentists to M. tuberculosis infection and to determine its prevalence among dental patients. Participants were patients in the dental clinic of University College Hospital, Ibadan, Nigeria, the largest hospital in the country.