1. Postgraduate Program in Dentistry, School of Dentistry; Federal University of Pelotas; Pelotas Brazil
2. Postgraduate Program in Health and Behavior; Catholic University of Pelotas; Pelotas Brazil
3. Australian Research Centre for Population Oral Health (ARCPOH); School of Dentistry, The University of Adelaide; Adelaide Australia
4. Postgraduate Program in Epidemiology, School of Medicine; Federal University of Pelotas; Pelotas Brazil