Lee, J. ., Shin, Y. ., Lee, J. ., & Kim, H. . (2018). Association of toothbrushing and proximal cleaning with periodontal health among Korean adults: Results from Korea National Health and Nutrition Examination Survey in year 2010 and 2012. Journal of Clinical Periodontology. https://doi.org/10.1111/jcpe.12846 (Original work published 2018)