Resumen

BRICENO, Elsi et al. Deteccion de Mycobacterium tuberculosis por métodos microbiologicos convencionales y caracteristicas del periodonto de un grupo de pacientes con tuberculosis. Acta odontol. venez [online]. 2009, vol.47, n.1, pp.170-181. ISSN 0001-6365.

Mycobacterium tuberculosis, aethiological agent of tuberculosis is a curved, aerobic, non sporulated and non motile rod that is a resistant aganaist dissecation effects. 15 patients were selected in this study who assited to Neumonology service located at Simón Bolívar Hospital, Caracas, Venezuela. These patients who had presuntive lung tuberculosis were studied considering their sings and simthomps. Oral cavities of each patient were studied considering their sings and sinthomps. Oral cavities of each patient were examinated and thorax Rx, Bacilloscopy (BK) and Petroff method were taked from each one in order to detect this rod. Our findings related that 11 out of 15 sputum samples were BK (+) and the other 4 were BK (-). M. tuberculosis was isolated in 7 samples, including BK (-) patients. Radiografically, 10 patients presented bilateral lesion, 4 presented unilateral lesion and 1 fibrothorax. Examination of oral cavities showed that 8 patients presented localizated periodontal disease and 6 presented generalizated periodontal disease. Detection of M. tuberculosis using BK continue to be an important method for identification of this bacteria, considering also epidemiological, clinical, radiographical, serological and histopathological studies in order to establish definitive diagnosis of TBC. Aditionally, Polimerase Chain Reaction (PCR) is an excellent method used to complement identification studies of this microorganism.

Palabras clave : Mycobacterium tuberculosis; Bacilloscopy; oral cavities.