• The Korean Journal of Health Service Management
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• v.5 no.3
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• pp.145-155
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• 2011

This study is Dental Hygiene Department of G University for comprehensive dental hygiene control and treatment weekly for four weeks from September 16 to October 20, 2010, excluding those who visited for ambulatory treatment of systemic diseases. For the 90 subjects, we performed oral examination, measured Simplified Oral Hygiene Index (S-OHI), Modified Patient Hygiene Performance (PHP-M), and O' Leary Index, and applied comprehensive dental hygiene control. First, as to the change of OHI according to age, the index in the 1st measurement was 3.43 in those under 35 and 3.17 in those aged 35 or older, so it was higher in the younger group, but in the 2nd measurement it was 1.89 in those under 35 and 2.14 in those aged 35 or older, and in the 3rd measurement it was 1.22 in those aged 35 or older, so it was higher in the older group. Second, as to the change of PHP-M according to age, the index in the 1st measurement was 50.35 in those under 35 and 43.16 in those aged 35 or older, soit was higher in the younger group, but in the 2nd measurement it was 31.97 in those under 35 and 28.88 in those aged 35 or older, and in the 3rd measurement it was 21.31 in those aged 35 or older, so it was higher in the older group.

• Journal of dental hygiene science
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• v.14 no.4
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• pp.448-454
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• 2014

The aim of this study was to evaluate the effect of a water fluoridation program (WFP) on prevention of dental caries in Gimhae City, Korea, with reference to the results of 2012 Korean National Oral Health Survey (KNOHS). In WFP population, 972 subjects including 8-, 10- and 12-year-old children in Gimhae City were examined in 2009. The WFP in Gimhae city has been implemented since 1999. 1872 subjects in non-fluoridated small and medium sized cities similar to Gimhae city were selected from 2012 KNOHS data as the control population. Two dentists who received training in KNOHS with an inter-examiner-agreement examined oral health status of all subjects. To assess the effects of WFP on dental caries, caries preventive fraction was estimated by assessing the differences of decayed, missing, and filled teeth (DMFT) index and decayed, missing, and filled surfaces (DMFS) index, DMFS in pit and fissures and smooth surfaces between WFP population and the control. Univariate analysis of variance adjusted for gender and number of fissure-sealed teeth or surfaces was conducted. DMFT of 12-year-old subjects (n=354) in WFP and control population (n=1,518) were 1.60 and 2.12, respectively, with an estimated prevention effect of 24.7%. Caries preventive fraction on pit and fissure, and smooth surfaces of WFP subjects was estimated 27.5% and 24.0%, among subjects aged 12 years, respectively. WFP in Gimhae City, Korea reduced the prevalence of dental caries and is recommended as a public oral health program where a fluoride-containing toothpastes are commonly used.

• Journal of the korean academy of Pediatric Dentistry
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• v.3 no.1
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• pp.52-62
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• 1976

The purpose of this paper is to present the clinical findings obtained from the fourth year epidemiological study on dental caries prevalence in Korean children and to compare them with those from the first year study made in 1973 by Paik. The oral examination was performed for this study on 1,451 children, composed of 808 boys and 643 girls, at "K" elementary school located in Seoul, Korea. The following conclusions are drawn: 1. The df person rate of primary teeth is 90.30% for boys, 90.67% for girls, and 90.43% for all, which is 7.41% higher than the first year value. 2. The dft index per child of primary teeth is 4.26 for boys, 4.30 for girls, and 4.28 for all, which is 0.42 higher than the first year value. The dt index is 2.49 for boys, 2.44 for girls, and 2.47 for all, which is 0.59 lower than the first year value. The ft index is 1.77 for boys, 1.86 for girls, and 1.81 for all, which is 1.01 higher than the first year value. 3. The DMF person rate of permanent teeth is 70.24% for boys, 73.05% for girls, and 71.49% for all, which is 16.28% lower than the first year value. 4. The DMFT index per child of permanent teeth is 2.08 for boys, 2.50 for girls, and 2.27 for all, which is 1.31 lower than the first year value. The DT index is 1.44 for boys, 1.64 for girls, and 1.53 for all, which is 1.53 lower than the first year value. The FT index is 0.61 for body, 0.85 for girls, and 0.71 for all, which is 0.21 higher than the first year value. The MT index is 0.02 for all, which is statistically the same as the first year value.

• Journal of the korean academy of Pediatric Dentistry
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• v.1 no.1
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• pp.41-47
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• 1974

The dental caries survey of "K" primary school children was performed twice for one year interval and evaluated the transitional trend of dental caries prevalences. The number of children surveyed at the first year, 1973, was 819 boys and 653 girls; and the second year, 1974, was 815 boys and 661 girls aged 6 to 12. Under this survey, the following results were detected: 1. The average df person rate in deciduous teeth was increased by 7.52% in boy, 5.59% in girl and 6.65% of both. 2. The average df Index in deciduous teeth was increased by 0.13 in boy, 0.04 in girl and 0.1 of both. The average dt Index was decreased by 0.59 in boy, 0.64 in girl and 0.61 of both. The average ft Index was increased by 0.73 in boy, 0.68 in girl and 0.71 of both. 3. There showed no significant differences in DMF person rate between 1973 and 1974. 4. The DMFT Index of the permanent teeth was decreased by 0.19 in boy, and increased by 0.22 in girl. There showed no significant differences in both sexes between 1973 and 1974. The average DT Index was decreased by 0.43 in boy, 0.03 in girl and 0.31 of both. The average FT Index was increased by 0.23 in boy; 0.35 in girl and 0.29 of both. The average MT Index showed no significant differences in both sexes between 1973 and 1974.

• Journal of the korean academy of Pediatric Dentistry
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• v.38 no.2
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• pp.137-145
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• 2011

The purpose of this study was to obtain the data for dental caries experience and occlusal pattern to utilize these data for motivating oral health promotion and activating oral health care programme in preschool children of multicultural family. Caries prevalence on primary teeth was surveyed for 3-5 years old 190 children of multicultural families in Chonbuk province. The results were as follows : 1. Dental caries prevalence rate of primary teeth (dmf rate) was 61.7% at 3 years of age, 88.7% at 4 years of age, and 92.6% at 5 years of age (p>0.05). 2. Average score of dmft index was 2.22 at 3 years of age, 4.97 at 4 years of age, and 6.62 at 5 years of age (p>0.05). 3. Most of the caries-prevailed tooth was maxillary primary central incisor and showed 28.8% at 3 years of age, 56.7% at 5 years of age. 4. dmft index and dmfs index of children of Vietnamese, Cambodian, and Filipinos women were higher than those of Chinese and Japanese. 5. In sagittal primary molar relationship, flush terminal plane type was 82.6%, distal step type was 5.2% and mesial step type was 8.4%. This study is the first report for children of multicultural families in Korea. More attention for children of multicultural families will be needed in aspect of oral disease prevention and treatment.

• The Journal of Korean Society for School & Community Health Education
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• v.12 no.1
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• pp.35-44
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• 2011

Objectives: The purpose of this study were to measure the effect of factors analyse the associated by the oral health behaviors and dental health services utilization factors of dental caries in the middle-school student's and then to provide basic material of preventive oral health and oral health education program. Methods: This subject of study consists of 342 middle schools each 1,2,3 grade Daegu city. The data were collected from July 2 to 30, 2009. by way of the self-reported questionnaire. The data materials are analyzed by demographic characteristics, oral health behaviors and dental health services utilization of frequency analysis, demographic characteristics of dental caries and oral health behaviors and dental health services utilization of one-way ANOVA analysis. Results: Brushing twice a day, which was the higher 69.3%, Students were trained received oral health education. Girls than boys dental caries teeth(DT) index (p<0.05), dental filling teeth(FT) index(p<0.00), dental experience caries teeth(DMFT) index(p<0.00) was higher than all three variables was a statistically significant. Oral health behavior of brushing twice a day 'once' dental caries teeth(DT) index was the highest, there was statistically significant difference (p<0.01), oral health education students experience a higher dental caries teeth(DT) index(p=0.36). dental health services utilization of preventive dental visits last one year when they did not have dental caries teeth(DT) index was higher (p=0.076) Conclusions: Oral health promotion is considered to adolescent as part of the oral health clinics school for elementary school students in the focus to middle school students and enhance.

• Journal of Korean society of Dental Hygiene
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• v.10 no.3
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• pp.465-471
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• 2010

Objectives : This study was conducted to purpose the fundamental data for further developments of the school dental clinic program(SDCP) through comparing results of oral health promotion program for 4 years relating to compare oral health status of children who had experienced and had not experienced the program. Methods : The subjects were 66 children of elementary school in Busan Metropolitan City who had benefited school dental clinic program(SDCP) from 2004 to 2007 and control group was 98 children of elementary school who had not benefited school dental clinic program(SDCP). Data analysis were done with SPSS program (ver 13.0) through basic statistical data, t-test. Results : The DMF rate of elementary school students who had benefited program was 41.5% and it was lower than that of control group(52.5%), however it was not significant statistically. The DMT index of elementary school students who had benefited program was 1.81 and it was lower than that of control group(2.44)(p<0.05). The DMFT rate of elementary school students who had benefited program was 4.44% and it was lower than that of control group(7.45%)(p<0.05). Conclusions : In oder to promote oral health of children, school dental clinic in elementary school should be extended to more elementary schools as possible and the operating system should be changed to improve the efficiency. Oral health educational materials should be developed and utilized to improve educational effect.

• Journal of the korean academy of Pediatric Dentistry
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• v.37 no.2
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• pp.179-185
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• 2010

Molar Incisor Hypomineralization(MIH) have recently gained intensive research interests and various clinical trials. Most prevalence, etiology, treatment studies in MIH were carried out in the European countries, and data from the Korean were seldom. This study aimed to investigate the prevalence of MIH and the status of dental caries and treatment on the first permanent molars in primary school children. For this study, 1,344 primary school students in Busan and Ulsan cities were examined directly the permanent incisors and first molars. The results of the survey were as follows: 81 MIH cases were identified among 1,344 cases. The prevalence of MIH in this group of children was 6.0%. Children with MIH showed a significantly higher DMFT value for permanent teeth than children without MIH. The mean number of decayed, missed, and filled in 1st permanent molars(DMFT index) was 1.17. The rate of children with restoration on 1st permanent molar was 13.6% and the sequence of restoration materials was as follows : composite resin, amalgam, gold inlay.

• Journal of the korean academy of Pediatric Dentistry
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• v.41 no.1
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• pp.8-17
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• 2014

Although adolescents usually show peculiar aspects in oral health status, there have been not so many studies about it, while there have been innumerable studies for children. This study aimed at evaluating the prevalence of dental caries of adolescents in Yangsan in Republic of Korea, detecting its contributing factors, and distinguishing the high-risk group by epidemiological mass survey. Besides, the significance including early caries lesion in diagnosis criteria was assessed with minimal invasive concept. This survey was performed on 1,371 adolescents aged 14 to 16 in Yangsan as subject examinees by a single trained examiner. The dental caries status was checked by oral examination at schools and questionnaire survey was accompanied for some relevant risk factors. The data were analyzed to yield the results as follows: Regarding the caries experience, the DMFT score by WHO criteria with ECL including or not was 4.79 and 3.97 respectively. In both the criteria, female showed higher values and that of high-risk group was almost twice compared with whole examinees by Sic Index. About pit & fissure sealed rate, it revealed the tendency that the more sealed teeth, the lower DMFT values. Among the studied risk factors, only the habit of brushing before going to bed showed positive relationship (p < 0.05).

• Journal of Oral Medicine and Pain
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• v.34 no.1
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• pp.1-9
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• 2009

Liver transplantation is definitive treatment for the patients suffering from hepatitis, severe liver cirrhosis and liver cancer. In these patients, systemic infections under immunosuppression may occur easily. Therefore, primary object of dental treatments before liver transplantation is absolute removal of oral infection source. In addition, comprehensive dental management plan is essential for success of liver transplantation. The present study has been performed to investigate decayed, missing and filled permanent teeth index(DMFT index), degree of oral hygiene, past medical history, need of dental treatment, completion of dental treatment need and time interval between dental visit and operation date of liver transplantation in liver transplant candidates. Obtained results were as follows; 1. Decayed teeth of the patients were 2.68, missing teeth were 4.02 and filled teeth were 3.42. DMFT index was 10.12. 2. Twenty percents of patients showed moderate to severe food impactions, 42.2% of patients had moderate to heavy calculus and 37.8% of patients displayed gingival inflammation with swelling. 3. Patients needed periodontal treatments more than any other dental treatments. Periodontal treatments were needed for 88.9% of patients, operative & endodontic treatments were 46.7% of patients and 33.3% of patients needed for oral & maxillofacial surgical treatments. 4. Among 90 patients, time interval between scheduled operation date of liver transplantation and dental visit was within 2 weeks for 32.2% of patients, within 1 week for 20.0% of patients. In conclusion, most liver transplant candidates needed dental treatments for removal of potential infection sources. However because of insufficient interval between dental visit and operation date, they had taken liver transplantation procedures without comprehensive dental management. Development of preventive and comprehensive dental management program is mandatory for these patients. Cooperative interdisciplinary management will play a positive role for successful liver transplantation.