1Professor & HOD, Deptt of Prosthodontics, Guru Nanak Dev Dental College & Research Institute, Sunam, Punjab
2Professor, Deptt of Prosthodontics, Guru Nanak Dev Dental College & Research Institute, Sunam, Punjab
3PG Student, Deptt of Prosthodontics, Guru Nanak Dev Dental College & Research Institute, Sunam, Punjab
*Address for Correspondence: Dr. Kulwant Singh Ghai, Professor, Deptt of Prosthodontics, Guru Nanak Dev Dental College & Research Institute, Sunam, Punjab, E-mail: kulwantsinghghai@yahoo.com
Online published on 18 May, 2016.