Patnana Arun Kumar1, Tanuj Kanchan2. 1. Department of Dentistry, All India Institute of Medical Sciences, Jodhpur, Rajasthan, 342005, India. 2. Department of Forensic Medicine and Toxicology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, 342005, India. tanujkanchan@yahoo.co.in.