1. Sydney Dental School, Faculty of Medicine and Health The University of Sydney Sydney Australia
2. Menzies Centre for Health Policy and Economics, School of Public Health, Faculty of Medicine and Health The University of Sydney Sydney Australia
3. Australian Research Centre for Population Oral Health (ARCPOH), Adelaide Dental School The University of Adelaide Adelaide Australia
4. The University of Queensland, School of Dentistry Herston Queensland Australia
5. Melbourne Dental School, Faculty of Medicine, Dentistry and Health Sciences The University of Melbourne Melbourne Australia