1. Oral Diseases. FDI World Dental Federation. Accessed 25 Apr 2019. www.fdiworlddental.org/oral-health/oral-diseases.
2. Global-, Regional-, and Country-Level Economic Impacts of Dental Diseases in 2015;J Dent Res,2018
3. Health Policy Institute. American Dental Association website. Oral Health and Well-Being in the United States. https://www.ada.org/~/media/ADA/Science%20and%20Research/HPI/OralHealthWell-Being-StateFacts/US-Oral-Health-Well-Being.pdf?la=enpdficonexternalicon.
4. The Global Burden of Oral Disease: Research and Public Health Significance;J Dent Res,2017