• Journal of the korean academy of Pediatric Dentistry
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• v.26 no.1
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• pp.25-31
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• 1999

The purpose of study was to test the hypothesis that preschool children who experienced nursing caries have high dft index and caries activity in primary dentition. One thousand and seventy-five preschool children from 4 to 6 years old were examined for their caries experience and salivary invertase activity by Resazurin Disc Test. Nursing caries group was identified by the criteria of having more decayed and filled teeth among the upper incisors than among the upper molars. The prevalence of nursing caries was 15.8%. The dft index of nursing caries group was significantly higher than that of the other groups except the rampant caries group(P<0.01). The Resazurin Disc Test score of nursing caries group was significantly higher than that of the other groups(P<0.01) and there was no difference between nursing caries group and rampant caries group. Therefore, it is recommended that children who experienced nursing caries should be incorporated in the caries prevention program through the primary and mixed dentition.

• Journal of the korean academy of Pediatric Dentistry
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• v.25 no.1
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• pp.152-156
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• 1998

The purpose of this study was to investigate the prevalence rate of the nursing caries in preschool children by retrospective epidemiological survey. 500 preschool children in Iksan city were examined for their dental caries experience (dt, mt, ft). Subjects were divided stepwise by the pattern of caries experience: Group 1-no caries, Group 2-no caries in the upper arch, Group 3-no caries among the upper incisors, Group 4-dmft in the lower arch $\geq$ mft in the upper arch, Group 5-dmft among the upper molars > dmft among the upper incisors, Group 6-dmft among the upper molars < dmft among the upper incisors+caries among the lower incisors, and Group 7-the rest. Groups 6 was regarded as the group which had experienced rampant caries, and the Group 7 was regarded as the group which had the typical pattern of nursing caries. The prevalence rate of nursing caries (Group 7) was 16.0%.

• Journal of the korean academy of Pediatric Dentistry
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• v.51 no.1
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• pp.40-54
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• 2024

This study aims to identify the regional distribution in the prevalence of dental caries and related multidimensional factors among 12-year-old children in Korea. Data from the 2018 Child Oral Health Survey were used to calculate the average DMFT index of 12-year-old children in metropolitan cities, and a multi-level regression model was applied to explain the regional distribution of dental caries prevalence and related factors. Factors were divided into two levels by administrative structure. This study finds a significant regional difference in the prevalence of dental caries in 12-year-old Korean children across metropolitan cities. Multilevel analysis showed that district-level factors (average number of pit and fissure-sealed permanent teeth, dental treatment demand rate, preventive treatment rate, sex ratio, and number of dentists per 100,000 people) and metropolitan-level factors (intakes of cariogenic beverages and number of pediatric dental hospitals and clinics per 100,000 people) had a significant effect on dental caries prevalence (p < 0.05). Individual characteristics and local socio-environmental factors influence the prevalence of dental caries. Especially considering the strong dependence on preventive treatment and accessibility to dental care services, it is necessary to provide adequate preventive treatment and expand health care resources in high-risk areas of dental caries.

• Journal of dental hygiene science
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• v.17 no.3
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• pp.250-256
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• 2017

The purpose of this study was to examine the influence of maternal socioeconomic status, maternal oral health behaviors, and oral health behaviors of children, on the prevalence of early childhood caries in children aged 5 years. The Korean National Health and Nutrition Examination Survey data collected between 2007 and 2014 were applied to this study, and the study sample included 824 children who received oral examinations and participated in the health behavior survey. The factor that affected the prevalence of early childhood caries were confirmed by maternal and child factors. The data were analyzed using multiple linear regression. The mothers' age, income level, and job status affected the prevalence of early childhood caries. There was a significant difference in the analysis considering the factors of motherhood and children in the prevalence of early childhood caries according to mother's age, education level, income level, and the child's oral examination. The prevalence of early childhood caries was higher in children who received oral examinations than in those who did not. When the mother's educational level was higher than college education, it was found that the index of child, i.e., there was a difference in the prevalence of early childhood caries according to the mother's educational and income levels. These results indicate that maternal socioeconomic characteristics are correlated with the oral health of children. Therefore, oral health education programs that include mothers for the prevention of early dental caries in children may improve the dental health of children. In addition, specific oral health policies are necessary to address the differences in the oral health between the income groups.

• Journal of Korean society of Dental Hygiene
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• v.22 no.5
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• pp.347-354
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• 2022

Objectives: This study aimed to evaluate the relationship between pit and fissure sealants of the molars, and caries prevalence and experience to assess the effect of sealants on caries prevention. Methods: Data from 16,119 people were extracted from the seventh Korean national health and nutrition examination survey, which was conducted from 2016 to 2018. Demographic, socioeconomic, oral health-related behavioral, and oral examination survey data were collected as independent variables. SAS statistics for complex samples and multiple logistic regression analysis (Windows ver. 9.4) was used for the statistical analyses. Results: Caries prevalence and experience were significantly associated with age, sex, daily toothbrushing frequency, interdental cleaning, and having molar sealant. Multiple logistic regression analysis revealed a significant association between having molar sealants and the caries prevalence and experience among participants under 30 years of age after adjusting socio-economic variables and toothbrushing-related factors. Conclusions: This study confirmed the effect of molar sealants on caries prevention in Korea. Our results support that the application of molar sealants in children, adolescents, and young individuals is effective in preventing caries.

• Journal of the korean academy of Pediatric Dentistry
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• v.25 no.3
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• pp.483-492
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• 1998

To investigate the prevalence and etiologic factors of nursing caries, oral examination was performed on 1,100 kindergarten children from 6 Seoul areas and 3 Hongchun areas. Parents were asked to fill out questionnaires. The following results were obtained: 1. The prevalence of nursing caries among 1,100 in the sample group(age 30-75 months) was 14.8%. 2. Fathers' education level(p<0.05), mothers' education level(p<0.01) and monthly income was higher in caries-free group children. 3. When the dietary tendencies of nursing caries group and caries-free group were compared, no significant differences in the length and method of feeding were found. However, nursing caries group showed higher frequency of bedtime nursing habit(p<0.01), daytime use of bottle as a comforter(p<0.01) and other beverage feeding in addition to milk(p<0.01). 4. When the parents' awareness of caries prevention was compared, caries-free group per formed more frequent tooth cleansing(p<0.05) and periodic dental examination(p<0.01).5. Dental caries experience of mothers was significantly lower in the caries free group(p<0.05). From the above results, it can be concluded that deleterious nursing habit had great effect on developing nursing caries and the incidence of nursing caries was lower among children with parents of higher socioeconomic status.

• Journal of the Korean Society of School Health
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• v.5 no.1
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• pp.101-110
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• 1992

We investigated each 50 students in the primary school its 1st year student(boys & girls) on the conditions of oral hygiene between urban and rural children centering around the dental caries. The purpose of this study is to promote national oral health and to offer the basic data on the oral health level of community. We got conclusion as follows : 1. Sex : The prevalence rate of dental caries between the rural and urban children showed high to the urban children. 2. Education Level of Parents : When the educational background of father is high, the prevalence rate of dental caries showed high(P<0.01). The educational background of mother has not influenced on the prevalence rate. 3. Economic Level of Home : When the economic level of home is high, the prevalence rate of dental caries is high(P<0.01). 4. Intake Frequency of Eating Between Meals : The average intake frequency of eating between meals a day of urban children was $2.3{\pm}0.76times$, the average intake frequency of eating between males a day of urban children was $2.79{\pm}0.82times$(P<0.01). 5. Brushing Frequency : The average brushing a day of rural children was $2.48{\pm}0.82times$, urban children was $2.34{\pm}0.71times$, and when the brushing frequency is high, the prevalence rate of dental caries showed low(P<0.01). 6. Brushing Time : The rural children and urban children had no difference, but brushing time had influenced on the prevalence rate(P<0.01). 7. Kinds of Drinking Water: The kinds of drinking water had not influenced on the prevalence rate of dental caries. 8. Amount of Pocket Money : The urban children is the more amount of pocket money than the rural, when the amount of pocket money is lots, the prevalence rate of dental caries showed high(P<0.01). 9. Average Intake Frequency a day for the caries food of eating between meals of rural children was 2.91 times and urban children was 3.47 times. The average intake frequency a day for the caries food of eating between meals had influenced on the prevalence rate dental caries. In the point of view for the oral health, the urban children is bad than the rural children in the actual conditions of intake. The education of oral health for parents has demanded, the necessity of oral control for the children of the improvement effectively as the methods to maintain the oral health level.

• Journal of dental hygiene science
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• v.15 no.3
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• pp.333-339
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• 2015

The study was intended to investigate the factors affecting dental caries in adults. To that end, adults aged 19 years and older among 10,113 subjects who completed the health-related questionnaire, medical examination and nutrition surveys in the first year (2013) of the 6th Korea National Health and Nutritional Examination Survey, and 4,843 subjects categorized as patients with permanent teeth caries were included in the final analysis. The prevalence of dental caries in line with socio-economic aspects was found to be higher in men than in women. In view of education, the prevalence of dental caries was high in high school graduates, middle school graduates, college graduates and other advanced degree holders in the order named. Low monthly income earners showed the highest prevalence of dental caries. As for health-related lifestyles, the prevalence of dental caries was higher in smokers than in non-smokers. Obese subjects showed a little higher prevalence of dental caries compared to people of normal weight. Also, the prevalence was higher in those who failed to get oral examination than otherwise. Frequent daily toothbrushing and use of dental floss and interdental brush significantly decreased the prevalence of dental caries. In the logistic regression analysis with the presence or absence of dental caries employed as a dependent variable, gender, age, income level, smoking, oral examination and use of dental floss were found to serve as independent variables affecting dental caries. Therefore, Korean adults' socio-economic factors and lifestyles were proved to affect dental caries, which warrants some dental health programs and action plans designed to help lead healthy lifestyles whilst preventing dental caries and improving dental health in adults.

• Journal of the korean academy of Pediatric Dentistry
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• v.11 no.1
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• pp.1-6
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• 1984

The author studied the prevalence of proximal dental caries of deciduous molar by observing intraoral radiographies of 478 children aging from 2 to 5 who visited the Dep. of Pedodontics, Seoul National University Hospital. The following results were obtained; 1. The prevalence of proximal caries of deciduous molar did not show significant difference between male and female, right and left side. 2. Mandibular deciduous molar had higher prevalence than maxillary deciduous molar. 3. The prevalence was increased with age. 4. The prevalence was highest in the distal surface of lower 1st deciduous molar and lowest in the distal surface of upper 2nd deciduous molar.

• The Korean Journal of Health Service Management
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• v.7 no.1
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• pp.95-105
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• 2013

The purpose of this study is to examine the relationship between characteristics of obesity and oral diseases by sex and grade. To achieve this, a survey was carried out on 830 students at just an elementary school in Chungnam area. The results of this study are as follows. First, the relationship between dental caries and malocclusion prevalence according to obesity by sex and grade showed that there was no difference between dental caries and malocclusion prevalence by sex, and dental caries prevalence by grade. Second, the difference in the level of dental health according to obesity showed that overweight students had more both caries teeth and loss teeth than normal students. Third, the relationship between obesity and the level of dental health showed that overweight students had many caries teeth and loss teeth. In particular, obesity had higher relationship with caries teeth than loss teeth. As the childhood is the period of time when the range of socialization is extended to schools from families, schools are important life zones for children. Consequently, the continuous and intensive instruction of health problems in schools needs to be comprehensively approached in terms of education.