1. Loe H, Kleinmann DV. Dental plaque control measures and oral hygiene practices: proceedings from a state-of-the-science workshop. Washington DC: IRL Press Ltd;1986. p. 119.
2. Ministry of Health and Welfare. 2012 Korea National Oral Health Survey. Summary. Seoul: Ministry of Health and Welfare;2013. 134:p. 177–179.
3. Ministry of Health and Welfare. 2003 Korea National Oral Health Survey. Summary. Seoul: Ministry of Health and Welfare;2004. p. 90.
4. Ministry of Health and Welfare. 2006 Korea National Oral Health Survey. Seoul: Ministry of Health and Welfare;2007. p. 107.
5. Ministry of Health and Welfare. OECD Health at a Glance 2009. Seoul: Ministry of Health and Welfare;2010. p. 34–35.
6. Health Insurance Review and Assessment Service. 2015 the first quarter Treatment cost statistical indices. Seoul: Health Insurance Review and Assessment Service;2015. p. 7.
7. Kim BI, Kwon HK, Kim SH, Kim YS, Kim HS, No HJ, et al. Textbook of oral care products. 1st ed. Seoul: Charm-yun publishing;2010. p. 25–36.
8. Wainwright J, Sheiham A. An analysis of methods of tooth brushing recommended by dental associations, toothpaste and toothbrush companies and in dental texts. Br Dent J. 2014; 217:E5.
9. Wilkins EM, McCullough PA. Clinical practice of the dental hygienist. 10th ed. Philadelphia: Lea andFebige;2008. p. 413–419.
10. Darby ML, Walsh M. Dental hygiene: theory and practice. 3rd ed. St. Louis: Elsevier Health Sciences;2010. p. 394–396.
11. Harris NO, Garcia-Godoy F. Primary preventive dentistry. 6th ed. New Jersey: Pearson Education Inc;2004. p. 138–141.
12. Poyato-Ferrera M, Segura-Egea JJ, Bullón-Fernández P. Comparison of modified Bass technique with normal tooth brushing practices for efficacy in supra gingival plaque removal. Int Dent Hyg. 2003; 1:110–114.
13. Kremers L, Lampert F, Etzold C. Comparative clinical studies on 2 tooth brushing methods-Roll and Bass technic. Dtsch Zahnarztl Z. 1978; 33:58–60.
14. Nassar PO, Bombardelli CG, Walker CS, Neves KV, Tonet K, Nishi RN, et al. Periodontal evaluation of different tooth brushing techniques in patients with fixed orthodontic appliances. Dental Press J Orthod. 2013; 18:76–80.
15. Kim JB, Baek DI, Mun HS, Kim HD, Jin BH, Choi YJ, et al. Clinical preventive dentistry. 4th ed. Seoul: Gomoonsa;2006. p. 132–134.
16. Choi YG, Park DY, Jeong DB. Relationship among adequacy, awareness of the difficulty in tooth brushing and plaque score. J Korean Acad Dent Health. 2009; 33:192–199.