A study on the polymicrobial etiology of root canal infections in anterior non-vital teeth in a government hospital in Kolkata, India.

A total of 52 patients having non-vital anterior teeth who attended at the Department of Conservative Dentistry of a Government Dental College of the city of Kolkata, India where studied for isolation of different microflora in the root canals of the non-vital teeth. 41 (78.8%) out of 52 cases studied showed the presence of microorganisms in the root canal of the teeth. A total of 83 different strains were isolated. The anaerobic organisms constituted 30.1% of the total isolates. 51.7% of the root canals showed presence of polymicrobial etiology of the non-vital teeth.