Assistant Professor, Department of Prosthodontics, Christian Dental College, Ludhiana, India

N. A. Sudharson

Dentist, Emmanuel Hospital Association, Division of Dentistry, Unit of Christian Dental College, Ludhiana, India

P. Lister

Senior Dental Consultant, Shri Rama Charitable Hospital, Prabhat Nagar, Dholewal, Ludhiana, India

N. Gupta

Sure Smiles Dental Clinics, Silgudi, West Bengal, India

M. Sharma

Correspondence to N. A. Sudharson, P. Lister, N. Gupta or M. Sharma.