Karishma M Desai1, Alka D Kale1, Pushpak U Shah1, Shivendra Rana2. 1. Department of Oral Pathology and Microbiology, KLE University's VK Institute of Dental Sciences and Hospital, Belgaum-590010, Karnataka, India. 2. Department of Oral Pathology, Rajasthan Dental College and Hospital, Jaipur, Rajasthan, India.