• Journal of dental hygiene science
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• v.17 no.3
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• pp.257-266
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• 2017

This study investigated factors affecting the subjective experience of oral symptoms among 2,285 elementary school students in the fourth and sixth grades using the Korean survey on the Health of Youth and Children in 2010. After conducting chi-square and Mann-Whitney U tests, we performed multiple logistic regression analysis to determine the factors affecting children's experience of oral symptoms. We found that the factors most frequently associated with the subjective experience of more oral symptoms were lower tooth brushing frequency, greater intake of foods that cause dental caries, higher stress levels, and lower levels of support from friends. In conclusion, determinants of children's oral health, such as children's oral health behaviors and psychological factors must be considered in a multifaceted approach to developing programs to promote oral health among children.

• Journal of Korean society of Dental Hygiene
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• v.15 no.1
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• pp.39-46
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• 2015

Objectives: The purpose of the study is to investigate the cognition of dental caries prevention by the level of socioeconomic status based on Gallup survey in Korea. Methods: This study was done by Korean Gallup survey in October, 2010. A trained researcher carried out the computer aided telephone interview(CATI) using a structured questionnaire. This study was based on the latest population statistics of resident registration and whole country's phone data base. This survey included 869 selected Korean adults over 19 years old, and they were asked to answer a CATI. The questionnaire consisted of general characteristics of the subjects and socioeconomic factors including age, gender, education level, monthly income, and residential area. Cognition of dental caries prevention was measured by Likert 4 scale including 'much', 'a little', 'rarely', and 'never'. The attitude toward dental caries prevention consisted of daily tooth brushing frequency, experience of oral health education, regular dental checkup, chewing gums(xylitol), regular scaling, and use of oral care devices. Data were analyzed using SPSS 20.0 for frequency analysis, t-test, chi-square test, and one way ANOVA. Cronbach's alpha was 0.462 in oral health concern and attitude. Results: Mean of the frequencies of daily tooth brushing in men was 2.54 times and 2.78 in women. By the comparison to age group, 35-44 years old group had 2.82 times, 19-37 years old group had 2.72 times, and 45-64 years old group had 2.51 times. The level of education and monthly income was proportional to the tooth brushing frequency. Highly educated and higher monthly income group received regular dental checkup within a year and used the auxiliary oral health care devices. Conclusions: This study suggested the relationship between dental caries prevention and socioeconomic status. It is important to provide the low socioeconomic group with the better oral health promotion services in the future.

• The Journal of Korean Society for School & Community Health Education
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• v.10 no.2
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• pp.85-94
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• 2009

Objectives: This study was conducted to improve dental health regarding behavior and understanding of dental health of day care teachers by analyzing actual dental health state. Methods: This study was performed from October 1 to October 30, 2008 for 194 teachers who worked at nurseries in Daegu. Results: In the toothbrushing recognition, 42.3% of the said that tooth brushing after eating is necessary but only 26.3% had the children bush teeth. They did not have the children brush the teeth because they did not have enough time. Many teachers (75.3%) said that dental caries could be prevented. But only 4.1% of them said that fluorine is effective for the prevention of dental caries. The preschool teachers had dental health education experience, better understood the importance of dental health education than those who did not have(p < 0.05). Conclusion: The preschool teachers who had dental health education better recognized the importance of dental health education.

• Journal of Nutrition and Health
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• v.51 no.4
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• pp.287-294
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• 2018

Purpose: This study was conducted to evaluate the association between serum 25-hydroxyvitamin D (25(OH)D) levels and dental caries experience in Korean adolescents based on the 2010 ~ 2014 Korean National Health and Nutrition Examination Surveys. Methods: The study subjects were 2,655 Korean adolescents aged 10 to 18 years. Subjects were classified into four groups according to their serum 25(OH)D levels. We used logistic regression to evaluate the relationship between vitamin D and for dental caries experience after adjusting for age, household income level, recipient of basic livelihood, tooth brushing and visiting dental clinics. Result: Multiple logistic regression analysis showed that serum 25(OH)D insufficiency (20 ng/mL ${\leq}25(OH)D$ < 30 ng/mL) was associated with increased odd ratios (ORs) for dental caries experience in boys (OR = 2.577, 95% CI = 1.013-6.557), compared with serum 25(OH)D sufficiency (25(OH)D ${\geq}30ng/mL$). Conclusion: The serum 25(OH)D levels were found to be related to risk of dental caries experience in Korean adolescent boys.

• 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 the korean academy of Pediatric Dentistry
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• v.11 no.1
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• pp.75-89
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• 1984

A total of 141 strains of Streptococcus mutans were isolated from dental plaques of 153 subjects. Eighty-two children with caries-experience, 18 caries-free children and their mothers were participated. All isolates were examined for their serotypes by immunodiffusion method with 7 reference sera and their antibiotic susceptibilities to 7 antibiotics by agar dilution method using 7 kinds of antibiotics, and were compared their results by caries experience (DMFT ratio) and by intrafamilial levels. 1. Isolation rate of Streptococcus mutans were greater in samples of carious teeth than those of sound teeth, and in mothers than in children. 2. Multiple serotypes of Streptococcus mutans were occasionally found in a single samples. 3. Of the total 141 isolates (83 isolates from children, and 58 from their mothers), type c isolates were most prevalent (63.8%). Type d,e and f were found, comprizing 14.9%, 10.6% and 6.4% respectively. Serotype g, a and untypable strain were also found but far lower frequencies (2.8-0.7%), and type b was detected. 4. These results suggest that there are no significant correlation among the distribution of serotypes, antibiotic susceptibilities, caries experience and intrafamilial relationships. 5. Most of isolates were susceptible to chloramphenicol (100%), penicillin (95.7%), ampicillin (94.3%), and gentamicin (92.2%), but about one-third isolates were resistant to cephaloridine (27%), streptomycin (33.3%) and kanamycin (47.6%), resulting that 91 strains (64.5%) among 141 isolates were resistant to one or more drugs used. 6. Of the 91 resistant strains, 20 different resistant patterns were observed, and the most frequently encountered patterns were KM, SM and CE.

• Journal of the korean academy of Pediatric Dentistry
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• v.47 no.4
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• pp.359-367
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• 2020

The aim of this study was to identify the association between candidiasis and early childhood caries and to investigate whether the experience of candidiasis or oral candidiasis before age 1 can be considered as a risk factor for early childhood caries. The database used in this study was provided by Health Insurance Review and Assessment Service. Medical records of children born from January 2010 to December 2012 were obtained, and those without dental records were excluded. Subjects were divided into several groups based on the experience of candidiasis or oral candidiasis before age 6: candidiasis group and non-candidiasis group; oral candidiasis group and non-oral candidiasis group. Another categorization was done according to the experience of candidiasis or oral candidiasis before age 1. The incidence rate of early childhood caries in each group were compared. The prevalence of dental caries in children who have been diagnosed with candidiasis or oral candidiasis before age 6 was significantly different from those who have not experienced candidiasis. Similarly, children who have suffered from candidiasis or oral candidiasis before age 1 had significantly different incidence of caries from the children without candidiasis experience.

• Journal of dental hygiene science
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• v.11 no.4
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• pp.367-373
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• 2011

The purpose of this study is to analyze factors impacting on the middle & high school students' dental treatment fear and distrust of dentists with dental caries experience to provide empirical data for the development of students oral health. The subjects of this study consists of 720 middle & high school students in Daegu area. The data were collected from July 1, 2009 to September 30, 2009 by self-administrative questionnaires. Among sub-scales of Dental Fear Survey(DFS), stimulate-response factor was the highest ($3.42{\pm}0.98$), and patient distrust toward dintist factor was the highest score($3.07{\pm}0.912$) among sub-scales of Dentist Distrust Survey(DDS). Mean score of DFS were DDS were higher in female than male student. The students who have higher DFS and DDS score, the also have high DMFT index. The higher DDS, the higher DFS, and it was statistically significant(p<0.001). The results suggest that oral health status of adolescent can improve diminishing dental fear and dentist distrust if patient-specific medical service may be provided.

• The korean journal of orthodontics
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• v.43 no.1
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• pp.35-41
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• 2013

Objective: To assess the prevalence of malocclusion and its relationship with dental caries among school children in southern India. Methods: This cross-sectional study included 1,800 students aged 11 - 15 years whose Dental Aesthetic Index (DAI) and dentition status were recorded and analyzed. The chi-square test, ANOVA, and Spearman's correlation tests were carried out. Results: The mean DAI score ${\pm}$ the standard deviation was $18.61{\pm}6.1$. Approximately 85% of the students (83.0% males, 86.8% females) had DAI scores of < 26 and were classified as not requiring orthodontic treatment. One tenth of the sample had mean DAI scores between 26 - 30 (indicating definite malocclusion and elective treatment), while about 3% had mean scores between 31 - 35 (indicating severe malocclusion and treatment desirability). Only 29 children (1.6%; 16 boys, 13 girls) had a DAI score of > 35, which suggested very severe or handicapping malocclusion requiring mandatory treatment. The mean decayed, missing, filled teeth (DMFT) was $2.28{\pm}1.47$. A DMFT of > 0 was observed in 91.8% of the study subjects. Children with a DAI score of > 35 were found to have significantly (p < 0.001) higher caries experience as compared to other children. Moreover, the DAI scores showed a significant correlation with the mean DMFT scores (r = 0.368, p < 0.05). Conclusions: A positive correlation was found between the severity of malocclusion and dental caries.

• Journal of Korean society of Dental Hygiene
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• v.11 no.5
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• pp.695-706
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• 2011

Objectives : The purpose of this study is to assess oral health perception, oral health behavioral and family smoking status according to smoking experience in a part of high school students. Methods : A survey is conducted with a total of 648 first grader at high school in Dae-Gu city from 1st to 30th September, 2009. The results are as follows. Results : 1. 95.5% of respondents are 'smoking is very harmful for health' and the majority of smoking-related disease are lung cancer, oral disease, and oral cancer. 2. 127 respondents have experience in smoking and 62 respondents are smoking at that time. 59.7% respondents have 1 year smoking history and the majority of respondent are 5 cigarettes/day. 67.8% respondents are under 5 cigarettes/day. 3. In oral health behavioral by smoking, the majority of smokers' teeth brushing are 3 times, 47.2% and 2 times, 27.6%. The majority of nonsmoker's teeth brushing are 3 times, 47.0% and 2 times 26.5%. The results of teeth brushing time are significantly different between smokers and non-smokers(p<.001). The majority of smokers and non-smokers have not experienced about scaling. It is significantly different between 2 groups(p<.05). 4. The smoking rate of father and grandfather in smokers is higher than non-smokers. It is significantly different between 2 groups(p<.005). 5. The need for oral management in oral health education is gum treatment and dental caries treatment. 22.8% smokers and 25.7% non-smokers require to get gum treatment. 18.1% smokers and 20.2% non-smokers required to get dental caries treatment. Conclusions : Also Future longitudinal research is required to develop oral health promotion program contents according smoking-oral health.