[1] Univ Maryland, Sch Dent, Baltimore, MD USA
[2] Univ Fed Santa Catarina, Grad Program Publ Hlth, Florianopolis, Brazil
[3] Univ Adelaide, Australian Res Ctr Populat Oral Hlth, Adelaide, Australia
[4] Univ Fed Rio Grande do Sul, Dept Prevent & Social Dent, Porto Alegre, Brazil
[5] Virginia Commonwealth Univ, Douglas Wilder Sch Govt & Publ Affairs, iCubed Initiat Oral Hlth Core, Richmond, VA USA
[6] Western Univ, Schulich Sch Med & Dent, Oral Diag Sci, London, ON, Canada
[7] Univ Hong Kong, Appl Oral Sci & Community Dent Care, Hong Kong, Peoples R China
[8] Univ Colorado, Sch Dent Med, Anschutz Med Campus, Aurora, CO USA