1. Kassebaum NJ, Bernabé E, Dahiya M, Bhandari B, Murray CJL, Marcenes W. Global burden of untreated caries. J Dent Res. 2015;94:650–8.
2. Schiffner U. Epidemiology of caries and noncarious defects. In: Meyer-Lückel H, Paris S, Ekstrand K, editors. Caries management – science and clinical practice. Stuttgart: Thieme; 2013. p. 118–32.
3. World Health Organization. Oral health surveys: basic methods. Geneva: World Health Organization; 2013.
4. Pitts NB. Diagnostic tools and measurements – impact on appropriate care. Community Dent Health. 1992;10:1–9.
5. Country/Area Profile Project (CAPP). Country oral health profiles.
https://www.mah.se/CAPP/Country-Oral-Health-Profiles/
. Accessed 24 April 2017.