1. Australian Research Centre for Population Oral Health The University of Adelaide Adelaide Australia
2. Postgraduate Program in Dentistry Federal University of Pelotas Pelotas Brazil
3. School of Clinical Dentistry University of Sheffield Sheffield UK
4. Department of Preventive and Social Dentistry Federal University of Rio Grande do Sul Farroupilha Brazil
5. Faculty of Dentistry The University of Otago Dunedin New Zealand