Moon SJ, Ka KH, Chun JA, Kim EH, Park HJ.  The Research on the Oral Examination and Experience of Dental Caries in Permanent Teeth in South Korean People -Focusing on Data from the 5th Korea National Health and Nutrition Examination Survey-.  IJCPD 2020;16:177-184.  https://doi.org/10.15236/ijcpd.2020.16.4.177