Primary tuberculosis of the oral cavity.

There is a well-known phrase that states, "The more things change, the more they stay the same." This expression continues to apply to tuberculosis (TB), a widespread infectious disease traced back to the earliest of centuries. TB has claimed its victims throughout much of known human history. Mycobacterium tuberculosis may have killed more persons than any other microbial pathogen and is one of the major causes of ill health and death worldwide. Although the overall incidence of TB has decreased, recently, the incidence of this disease appears to be increasing. Oral lesions of TB though uncommon are seen in both the primary and secondary stages of the disease. In secondary TB, the oral manifestations may be accompanied by lesions in the lungs, lymph nodes, or in any other part of the body and can be detected by a systemic examination. Most of the cases are secondary to pulmonary disease and the primary form is uncommon. Here, we present a case of primary oral TB, affecting the gingiva and hard palate in a 40-year-old Indian female patient.