1. Dental caries and sealant prevalence in children and adolescents in the United States, 2011 – 2012;Dye BA;NCHS Data Brief,2015
2. School screening and parental reminders in increasing dental care for children in need: a retrospective cohort study
3. ADA Health Policy Institute.The Oral Health Care System: A State‐by‐State Analysis.2015; Available from:https://www.ada.org/~/media/ADA/ScienceandResearch/HPI/OralHealthCare-StateFacts/Oral-Health-Care-System-Full-Report.pdf?la=en.
4. American Dental Association.2007Distribution of Dentists in the United States by Region and State (December 2009). Available form:https://www.adea.org/publications/library/otherresources/Pages/2007DistributionofDentistsintheUnitedStatesbyRegionandState%28December2009%29.aspx.