1. School of Dentistry, Faculty of Health and Behavioural Sciences, The University of Queensland, Herston, Queensland, Australia
2. Australian Research Centre for Population Oral Health, Adelaide Dental School, The University of Adelaide, Adelaide, Australia
3. School of Psychology, The University of Adelaide, Adelaide, Australia
4. School of Population and Global Health, Population and Public Health, The University of Western Australia, WA, Australia
5. Bristol Dental School, University of Bristol, Bristol, UK