WhatsApp-Supported Teledentistry to Reinforce Oral Health Promotion Among Older Adults Residing in Rural and Urban Areas: Randomized Controlled Trial

Fernanda Muñoz-Sepúlveda   ^{1, 2, 3} , MSc ;   Víctor Beltrán   ^{1, 2} , PhD ;   Alfredo von Marttens   ⁴ , PhD ;   Pablo Navarro   ^{5, 6} , PhD ;   Claudia Acevedo   ¹ , PhD ;   Rodrigo Mariño   ^{7, 8} , PhD ;   Alejandra Chaparro   ⁹ , PhD ;   Leonardo López   ¹⁰ , PhD

¹ Clinical Investigation and Dental Innovation Center (CIDIC), Dental School and Center for Translational Medicine (CEMT-BIOREN), Universidad de La Frontera, Temuco, Chile

² Interuniversity Center for Healthy Aging (CIES), Talca, Chile

³ Program of Master in Dental Science, Dental School, Universidad de La Frontera, Temuco, Araucanía, Chile

⁴ Department of Prosthodontics , Faculty of Dentistry, University of Chile, Santiago, Chile

⁵ Research Center for Dental Sciences (CICO), Dental School, Universidad de La Frontera, Temuco, Chile

⁶ Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Temuco, Chile

⁷ Melbourne Dental School, University of Melbourne, Melbourne, Australia

⁸ Center for Research in Epidemiology, Economics and Oral Public Health (CIEESPO), Faculty of Dentistry, Universidad de La Frontera, Temuco, Chile

⁹ Department of Periodontology, Centre for Biomedical Research, Faculty of Dentistry, Universidad de Los Andes, Chile, Santiago, Chile

¹⁰ Information and Communication Technology Institute, Universidad de La Frontera, Temuco, Chile