Author(s) affiliations:Rakesh Kumar1*, Vivek Sharma2, Sukhbir Singh3, Hardeep4
1Assistant Professor, Punjab Institute of Medical Sciences, Jalandhar, India
2Reader, Deshbhagat Dental College, Muktsar, India
3Associate Professor, Punjab Institute of Medical Sciences, Jalandhar, India
4Tutor, Punjab Institute of Medical Sciences, Jalandhar