• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.2
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• pp.233-239
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• 2016

This study compared and analyzed the tooth brushing time per day and dental caries in 1-13-year-old children in the stage of the completion of their permanent teeth based on the 6th primitive at data of objective National Health Nutrition Survey. The results show a meaningful difference between the DMFT and dental caries experience. In particular, the group with a lower toothbrushing rate after lunch generally have a higher incidence of dental caries.

• Journal of dental hygiene science
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• v.19 no.1
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• pp.9-22
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• 2019

Background: The purpose of this systematic review was to investigate the effects of topical fluoride gel application on dental caries prevention in the permanent teeth of children and adolescents. Methods: We searched the EMBASE, PubMed, and Cochrane Library databases for randomized controlled trials (RCTs) assessing the effects of self-applied or professionally applied topical fluoride gels in patients <18 years of age; the search was completed on April 1, 2018. All included trials involved an experimental group (fluoride gel application) and a control group (placebo or no treatment). The outcome measures were the D(M)FS and D(M)FT indices, which were compared between the two groups. Review Manager software was used for quantitative synthesis of the final selected articles, and a forest plot was generated via a meta-analysis conducted using a random effects model. Results: The results showed that the D(M)FS and D(M)FT indices were lower in the fluoride application group than in the control group, thus indicating that fluoride gel application was effective in dental caries prevention. We also performed a subgroup analysis to determine whether the effects of fluoride application differed if patients received oral prophylaxis (self or professional) before fluoride gel application. Therefore, the two groups showed slightly larger differences when studies without oral prophylaxis before fluoride gel application were considered; however, the difference was not statistically significant. Conclusion: These findings should be utilized to raise awareness about the caries-prevention effects of topical fluoride application among patients and guardians. Further RCTs should evaluate the effects of fluoride application with or without preceding oral prophylaxis, and appropriate fluoride application guidelines should be developed to maximize the effects of fluoride application in clinical practice.

• The Journal of the Korean dental association
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• v.11 no.2
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• pp.101-104
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• 1973

• Journal of the Korea Convergence Society
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• v.8 no.1
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• pp.89-96
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• 2017

This study is to analyze seven fluoride varnishes remineralizing effects on early carious lesions in the clinical field. While CS, MI, CW, VV, EP, FP and FN were used for permanent teeth, CS, MI, CW and FP were used for primary teeth. The specimens were demineralized for 4 days after forming a $3{\times}3mm^2$ window with nail varnish, applied with varnishes separately, then were stirred in artificial saliva for 1 week. QLF-D analysis of carious lesion size showed that permanent teeth's ${\Delta}F$ value decreased after applying CS(4,64), MI(4.86), CW(4.50), and EP(5.50), while for primary teeth, FP(3.00) and MI(3.00) displayed a remineralizing effect. Thus, MI can be used effectively for preventing caries for both adults and children in the clinical field.

• Journal of the korean academy of Pediatric Dentistry
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• v.29 no.3
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• pp.318-327
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• 2002

The purpose of this study was to make a comprehensive study and to provide information about the dental caries and plaque index of cerebral person, and to aid improvement of their oral health. The author examined intraorally 1180 deciduous teeth, 5626 permanent teeth of 264 (male:153 female:111) cerebral palsy person and 1526 deciduous teeth, 4140 permanent teeth of 220 (male:125 female:95) non cerebral palsy person as the control group. The results were as follows : 1. Cerebral palsy persons Had higher dft rate than non-cerebral palsy persons. 2. Dental caries incidence between males and females in cerebral palsy persons showed no difference, and dental caries incidence of types in cerebral palsy person showed no difference, either. 3. Mental, motor, speech handicap degrees were negatively related to DMFT rate and DMFT index, and institutionalized cerebral palsy persons and cerebral palsy persons of which parent's occupation is private business were found low DMFT rate and DMFT index. 4. Cerebral palsy persons were found to have higher plaque index than non-cerebral palsy persons, and non institutionalized cerebral palsy persons and self-supported cerebral palsy persons were found high plaque index. 5. Plaque index of male and female in cerebral palsy person showed no difference, and Plaque index of types in cerebral palsy person showed no difference, either Plaque index of handicap degrees(mental, motor, speech) showed no difference.

• Journal of Korean society of Dental Hygiene
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• v.19 no.6
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• pp.931-939
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• 2019

Objectives: The purpose of this study was to determine the importance of brushing before sleeping by comparing the use of oral care products, frequency of dental clinic visits, and oral conditions between individuals who brush and do not brush their teeth before sleeping using data from the 5th and 6th Korean National Health and Nutrition Survey (KNHANES). Methods: Statistical analysis was performed using SPSS 21.0 on data files obtained according to a complex sampling design, and a significance level of <0.05 was set. General characteristics of the participants and year were analyzed using chi-square analysis. Data on the oral conditions, use of oral care products, and frequency of dental clinic visits were analyzed using logistic regression and linear regression. Results: Individuals who brushed their teeth before sleeping showed greater use of oral care products and more frequent dental clinic visits, oral examinations, preventive treatment, and treatment for simple caries (p<0.05) than individuals who did not. Individuals who did not brush their teeth before sleeping showed higher prevalence of permanent teeth caries and periodontal disease, as well as chewing and speaking problems (p<0.05), than those who bushed before sleeping. Conclusions: Individuals who do not brush before sleeping exhibit poorer oral health and lower use of oral care products and frequency of recent dental treatment than those who brush before sleeping. Therefore, it is necessary to alter the government's active policy and improve education about the importance of brushing before sleeping to improve oral health.

• 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.46 no.3
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• pp.310-317
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• 2019

The purpose of this retrospective study was to evaluate the survival rate of composite resin restorations in permanent first molars in pediatric patients focusing on the influence of risk factors related to patients and teeth. 172 patients (6 - 12 years old) who had their permanent first molars restored with composite resin from July 2010 to July 2012 were investigated. From the dental records, the influence of the risk factors on the survival of restorations was assessed. Location of teeth, classification of cavities, patients' age and caries risk were included as risk factors in this study. The caries risks of patients were evaluated by the value of the decayed-missing-filled teeth index with the records of patients taken at 5 years old. Among 354 restorations, 272 restorations retained and 82 restorations were replaced. The overall cumulative survival rate at 5 years was 73.9%. The main reason for replacement of restorations was secondary caries (81.7%). Patients with older age group and with lower caries risk group showed higher survival rate of restorations. No statistically significant influence was detected between the survival rates and the possible risk factors : location of teeth, patients' age and caries risk. The survival rate of restorations was significantly affected by the classification of the cavities (p = 0.002).

• Journal of the korean academy of Pediatric Dentistry
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• v.4 no.1
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• pp.39-44
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• 1977

150 "K" primary school children, from 6 to 10 years old, have been examined both clinically and radiographically for proximal caries in deciduous canine and deciduous posterior teeth and permanent first molar teeth. 1. 598 proximal cavities were diagnosed 154 (25.75%) were revealed by both examinations. 39 (6.52%) appeared on clinical examination only, but 405 (67.73%) were revealed by radiographic examination only. 2. The dental caries occurance on distal surface of first deciduous molar and mesial surface of second deciduous molar were revealed much higher values in all ages. 3. There is no significant differences observed between right and left arch. 4. Proximal cavities were revealed 1.7 times more in mandible than in maxilla.

• Journal of the korean academy of Pediatric Dentistry
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• v.4 no.1
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• pp.45-52
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• 1977

The purpose of this study was to provide information concerning the dental caries incidence in cerebral palsy children, and to aid improvement of their oral health. The author examined 106 cerebral palsy children and 185 normal children as control group, between 3 and 15 years of age. The obtained results were as follows: 1) In the DMF person rate, DMFT rate and DMFT index, cerebral palsy children (74.68%, 16.24% and 2.76 respectively) showed remarkable increment compare to normal children. (14.28%, 6.95% and 1.20 respectively.) 2) In the df person rate, dft rate and dft index, cerebral palsy children(93.33%, 37.41% and 6.22 respectively) showed remarkable increment compare to normal children. (78.64%, 20.68% and 3.29 respectively.) 3) There showed no significant in sexual differences. 4) In the dental caries incidence of the permanent teeth, athetosis and paraplegia type was found higher than other types. 5) Cerebral palsy children was found higher than normal children in the oral hygiene index. 6) There was found out necessity of the continuous dental enlightenment and treatment through this study.