1. Department of Oral Pathology, Drs Sudha & Nageswara Rao Siddhartha Institute of Dental Sciences, Chinoutpalli, Gannavaram, Krishna, Andhra Pradesh 521 286, India
2. Department of Oral & Maxillofacial Surgery, Drs Sudha & Nageswara Rao Siddhartha Institute of Dental Sciences, Gannavaram, Andhra Pradesh 521 286, India