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Choi, Ma, Jung, Cho, and Park: Changes in the amount of pit and fissure sealants supplied in Korea after inclusion in the National Health Insurance coverage
Original Article

J Korean Acad Oral Health 2015;39(1):69-77.

Published online: 12 March 2015

DOI: https://doi.org/10.11149/jkaoh.2015.39.1.69

Changes in the amount of pit and fissure sealants supplied in Korea after inclusion in the National Health Insurance coverage

Jin-Sun Choi1, Deuk-Sang Ma1, Se-Hwan Jung1, Eun-Pyol Cho2, Deok-Young Park1

1Department of Preventive and Public Health Dentistry, Gangneung-Wonju National University College of Dentistry, Research Institute of Oral Science, Gangneung, Korea

2Health Lifestyle Program, Division of Health Promotion, Korea Health Promotion Foundation, Seoul, Korea

Corresponding Author: Deok-Young Park Department of Preventive and Public Health Dentistry, College of Dentistry, Gangneung-Wonju National University, 7 Jukheon-gil, Gangneung 210-702, Korea Tel: +82-33-640-2794 Fax: +82-33-640-6410 E-mail: jguitar@gwnu.ac.kr

Received 26 February 2015       Revised 6 March 2015       Accepted 9 March 2015

Copyright © 2015 Journal of Korean Academy of Oral Health

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objectives

The purposes of this study were to review changes in the amount of pit and fissure sealant (PFS) provided after the inclusion of PFS in treatments covered by the National Health Insurance (NHI) and to assess differences in the supplied amount between geographical areas where accessibility to dental care differs.

Methods

The years for comparison were selected based on data availability and the time of inclusion of PFS into NHI coverage. The selected pre-inclusion year was 2008, and the post-inclusion year was 2012. Data regarding the amount of PFS supplied were collected from the oral health program, NHI, and Medical care. To dichotomize areas by high and low dental care accessibility, we standardized the population size, number of dental institutions, and number of dentists in each group.

Results

We considered metropolitan areas and Gyeonggi Province as high dental care accessibility areas, while other provinces were considered as low dental care accessibility areas. Regardless of the transforming constant, the amount of PFS supplied increased in high dental care accessibility areas and decreased in low dental care accessibility areas after inclusion of PFS in NHI.

Conclusions

To increase the amount of PFS provided in low dental care accessibility areas, promotion of PFS should be strengthened and support from oral health programs should be increased. Additionally, waiving out-of-pocket money for PFS in NHI should be considered to remove barriers of supply.

Keywords: National Health Insurance, Oral health program, Pit and fissure sealant

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Fig. 1.
Design of the research.
jkaoh-39-69f1.tif
Fig. 2.
The amount of pit and fissure sealing by public account before and after National Health Insurance coverage. *Oral health program +National health insurance+Medical care assistance. †Transforming coefficient: Coefficient needed to transform unit of person to unit of teeth.
jkaoh-39-69f2.tif
Fig. 3.
The publicly supplied amount of pit and fissure sealing by region. Note: 2008 year=Oral health program. 2012 year=Oral health program+National health insurance+Medical care assistance. 1=Seoul, 2=Busan, 3=Daegu, 4=Incheon, 5=Gwangju, 6=Daejeon, 7=Ulsan, 8=Gyeonggi, 9=Gangwon, 10=Chungbuk, 11=Chungnam, 12=Jeonbuk, 13=Jeonnam, 14=Gyeongbuk, 15=Gyeongnam, 16=Jeju.
jkaoh-39-69f3.tif
Fig. 4.
The publicly supplied amount of pit and fissure sealing by dental care accessibility of cities. *Oral health program+National health insurance+Medical care assistance.
jkaoh-39-69f4.tif
Table 1.
Classification and characteristics of data
Classification Oral Health Program National Health Insurance Medical Care Assistance
Year 2008, 2012 2012 2012
Target ages Priority on 6 to 7-year-olds, and 6 to 11-year-olds 6 to 11-year-olds
permitted to ≤11-year-olds
Target tooth Priority on 1st permanent molars, and 1st permanent molars 1st permanent molars
permitted to other permanent teeth (January - September), (January - September),
1st, 2nd permanent molars (October -) 1st, 2nd permanent molars (October -)
Data unit Per person Per tooth Per tooth
Table 2.
Extent standardized population, dental institutions, dentists by area
Classification Population* (Per 1 km2) Dental institutions† (Per 1 km2) Dentist‡ (Per 1 km2)
2008 2012 Ranking§ 2008 2012 Ranking§ 2008 Ranking 2012 Ranking
Seoul 1,055 833.1 1 7.1 7.7 1 9.9 1 10.9 1
Busan 286 217 2 1.3 1.5 2 1.8 2 1.9 2
Daegu 248 196.2 3 0.9 1 3 1.5 3 1.7 3
Incheon 219 178.3 4 0.8 0.9 4 1.1 5 1.3 4
Gwangju 208 159.9 5 0.8 0.9 4 1.2 4 1.3 4
Daejeon 199 157.5 6 0.7 0.7 5 0.9 6 1 5
Ulsan 91 76.4 7 0.3 0.3 6 0.4 7 0.4 6
Gyeonggi 86 65.1 8 0.3 0.3 6 0.3 8 0.4 6
Gangwon 26 21.3 9 0.1 0.1 7 0.1 9 0.1 7
Chungbuk 24 18.6 10 0.1 0.1 7 0.1 9 0.1 7
Chungnam 20 14.6 11 0.1 0.1 7 0.1 9 0.1 7
Jeonbuk 17 13.5 12 0.1 0.1 7 0.1 9 0.1 7
Jeonnam 14 12.3 13 0 0 8 0.1 9 0.1 7
Gyeongbuk 11 8.4 14 0 0 8 0 10 0.1 7
Gyeongnam 10 7.3 15 0 0 8 0 10 0 8
Jeju 7 5.1 16 0 0 8 0 10 0 8

*Population (age of 6-11) ÷ Extent of the area [1 km

2 ].

† Number of Dental institutions ÷ Extent of the area [1 km

2 ].

‡ Number of Dentists ÷ Extent of the area [1 km

2 ].

§ Rank of year 2008 and 2012 is equal.

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