1. King's College London Dental Institute; Dental Practice & Policy; Denmark Hill Campus Bessemer Road London UK SE5 9RW
2. The University of Manchester; School of Dentistry; Coupland III Building, Oxford Road Manchester UK M13 9PL
3. KCL Dental Institute; Division of Health and Social Care Research; Bessemer Road London UK SE5 9RW
4. NHS Sheffield; Sheffield UK
5. School of Dentistry, The University of Manchester; Cochrane Oral Health Group; Coupland III Building, Oxford Road Manchester UK M13 9PL