1. Department of Prosthodontics, Post Graduation Student, Maharishi Markandeshwar University, Mullana, Ambala, India.
2. Department of Prosthodontics, Faculty of Dentistry, Maharishi Markandeshwar University, Mullana, Ambala, India.
3. Department of Prosthodontics, Faculty of Dentistry, Bhojia Dental College, Himachal Pradesh University, Shimla, India.