Screening for Microbial Contamination of Multi-dose Lignocaine Vials in a Dental Hospital: A Prospective Study.

Aim: Multidose vials (MDVs) for local anesthetic injections are routinely used in dental practice. MDVs contain multiple doses of a parenteral drug intended for administration to the same or multiple patients. Potentially harmful microbes have been shown to be able to live and occasionally multiply in MDVs if not handled aseptically.