Faculty of Heath Sciences;
Fernando Pessoa University;
Porto;
Portugal;
Centre of Health Studies and Research;
Coimbra University;
Coimbra;
Portugal;
Non-Governmental Organization(NGO):Mundo A Sorrir;
Porto;
Portugal;
Portuguese Institute for Oncology;
Porto;
Portugal;
Instituto Politecnico do Cavado e do Ave;
Barcelos;
Portugal;
Porto;
Portugal;
Well Medical Spa;
Porto;
Portugal;
Health Sciences Department;
Portuguese Catholic University;
Viseu;
Portugal;
Oral Cancer; Visual Screening; Oral Health Promotion; Epidemiological Strategies;