Author information:
(1)Professor & Head, Department of Oral Pathology, Faculty of Dental Sciences, 
Sri Ramachandra Institute of Higher Education & Research (DU), Porur, Chennai, 
India.
(2)Professor, Department of Oral & Maxillofacial Surgery, Faculty of Dental 
Sciences, Sri Ramachandra Institute of Higher Education & Research (DU), Porur, 
Chennai, India.
(3)Assoc. Professor, Department of Oral &Maxillofacial Surgery, Faculty of 
Dental Sciences, Sri Ramachandra Institute of Higher Education & Research (DU), 
Porur, Chennai, India.
(4)Senior Lecturer in Oral Pathology, Department of Oral &Maxillofacial Surgery, 
Faculty of Dental Sciences, Sri Ramachandra Institute of Higher Education & 
Research (DU), Porur, Chennai, India.
(5)Professor, Department of Oral Pathology, Faculty of Dental Sciences, Sri 
Ramachandra Institute of Higher Education & Research (DU), Porur, Chennai, 
India.