1. King George's Medical University; Department of Paediatric and Preventive Dentistry; Chowk Lucknow Uttar Pradesh India 226003
2. King George's Medical University; Department of Conservative Dentistry and Endodontics; Chowk Lucknow Uttar Pradesh India 226003
3. King George's Medical University; Department of Prosthodontics, Crowns and Bridges; Shahmina Road Faculty of Dental Sciences Lucknow Uttar Pradesh India 226003
4. Christian Medical College; Cochrane South Asia, Prof. BV Moses Center for Evidence-Informed Health Care and Health Policy; Carman Block II Floor CMC Campus, Bagayam Vellore Tamil Nadu India 632002
5. University of Bern; Department of Preventive, Restorative and Paediatric Dentistry; Freiburgstrasse 7 Bern Bern Switzerland CH-3010