• Journal of Korean society of Dental Hygiene
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• v.9 no.2
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• pp.13-24
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• 2009

The purpose of this study was to examine the relationship between the dietary habits and oral health of elderly people in an attempt to pave the way for the development of oral health promotion programs geared toward improving the quality of life of the elderly. The subjects in this study were senior citizens who were selected by convenience sampling from Seoul. The findings of the study were as follows: 1. Regarding subjective oral health state, 54.5% of the elderly people, more than the half, considered their mouth to be in good health. The number of their mean remaining permanent teeth was 13.71. 47.5 percent of the senior citizens investigated had no shaking teeth. 2. Those who found themselves to be in good oral health had meals on a regular basis(p=0.022) and ate detergent food often. The gaps between them and the others was significant(p=0.005). In contrast, the elderly people who were in a bad oral health frequently ate cariogenic food(p=0.044). 3. The elderly people who had 21 teeth or more ate detergent food often(p=0.029), and those who owned no teeth had a sweet teeth(p=0.003), ate more cariogenic food(p=0.001) and had a snack frequently(p=0.026). 4. The subjective oral health status had a positive correlation to detergent food intake(r=0.23) and had a slightly negative correlation to preference for sweets(r=-0.14), cariogenic food intake(r=-0.14) and snack intake(r=-0.06). The number of tooth was positively correlated to detergent food intake(r=0.23) and negatively to preference for sweets(r=0.32), cariogenic food intake(r=-0.30) and snack intake(r=-0.21). The presence or absence of shaking teeth had a positive correlation to snack intake(r=0.14). The above-mentioned findings suggested that the dietary habits of the elderly people had a statistically significant relationship to subjective and objective oral health state, which indicated that there was a close relationship between oral health and dietary habits. Therefore how to improve dietary habits as well as oral health should be taken into account when oral health promotion programs are developed for the sake of the elderly. That would contribute to promoting the oral health of elderly people and eventually boosting their quality of life.

• Communications for Statistical Applications and Methods
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• v.24 no.3
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• pp.271-290
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• 2017

We study a bivariate response regression model with arbitrary marginal distributions and joint distributions using Frank and Clayton's families of copulas. The proposed model is used for fitting dependent bivariate data with explanatory variables using the log-odd log-logistic Weibull distribution. We consider likelihood inferential procedures based on constrained parameters. For different parameter settings and sample sizes, various simulation studies are performed and compared to the performance of the bivariate odd-log-logistic-Weibull regression model. Sensitivity analysis methods (such as local and total influence) are investigated under three perturbation schemes. The methodology is illustrated in a study to assess changes on schoolchildren's oral health-related quality of life (OHRQoL) in a follow-up exam after three years and to evaluate the impact of caries incidence on the OHRQoL of adolescents.

• Journal of Korean society of Dental Hygiene
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• v.11 no.4
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• pp.499-509
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• 2011

Objectives : The purpose of this study was to provide some information on down-to-earth oral health policy to improve the systemic health involving oral health and the quality of life in Korean adults. Methods : The third-year data of the 4th National Health and Nutrition Survey in 2009 were analyzed, and $x^2$(Chi-square) test was carried out to see whether there would be any gaps in subjective oral health status according to demographic characteristics, systemic health state, frequency of eating between meals and oral health behavior. In terms of the DMFT index, one-way ANOVA was utilized, and then Scheffe post-hoc analysis was conducted. Besides, multiple regression analysis was made to grasp the relationship of oral health behavior to subjective oral health state and the DMFT index. Results : The demographic characteristics, systemic health status and oral health behavior had a significant relationship to both of subjective oral health status and the DMFT index. As a result of analyzing the relationship of oral health behavior to subjective oral health state and the DMFT index, the subfactors of oral health behavior exerted a significant independent influence on subjective oral health status and the DMFT index. Conclusions : The findings of the study suggest that in order to promote the oral health of adults, preventive measures should be taken, and systematic oral health education should be provided. As there is an increase in the elderly population in Korea, the successful implementation of senior oral health plans and the development of oral health programs geared toward adults are both required.

• Journal of Digital Convergence
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• v.19 no.2
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• pp.315-322
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• 2021

The purpose of this study was to examine the correlations of oral myofunction and oral environment for the elderly with systemic diseases and to suggest need to improve oral health for the elderly. Data were collected from 64 elderly over the age of 65, from April to June 2019. Data were surveyed on general characteristics, oral myofunction, oral health-related quality of life, oral bacteria. Analysis was performed using PASW Statistics ver 18.0. The subjects were 43.8% systemic diseases, among them 40.6 percent of the people with more than two. The number of functional teeth was 18.6. Age was negatively correlated with functional teeth(r=-.384, p<.01) and tongue pressure (r=-).104, p<.001). Tongue pressure was a positive correlation with lip force(r=.279, p<.05). Age and total number of bacteria was negative correlation(r=-.336, p<.01). The functional teeth and total number of bacteria was positive correlation(r=.551, p<.001). The number of systemic diseases and total number of bacteria was positive correlation(r=.327, p<.01) the analysis of oral myofunction and oral bacteria in older patients with systemic diseases It was meaningful in suggesting a plan to improve oral health for the elderly. A practical policy plan was required to improve the quality of oral health life in a super-aged society.

• Journal of the korean academy of Pediatric Dentistry
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• v.47 no.4
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• pp.427-437
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• 2020

The purpose of this study was to investigate the effects of public preventive dental healthcare services named the "Dental Preventive Health Services for Children" (DPHSC) on oral health-related quality of life (OHRQoL) in Korean children. Of the total 20,802 beneficiaries in 2018, 110 10-year-old elementary school students were randomly selected and were requested to complete a survey using the Korean version of Child Oral Health Impact Profile (COHIP) questionnaire before and after participating in DPHSC. Overall, 107 participants completed the pre- and post-survey. COHIP scores and clinical results such as numbers of decayed and missing teeth, malocclusion, and oral hygiene status from dental examination were statistically analyzed and the reliability and the validity of the responses were verified. There was a significant clinical increase in mean overall COHIP scores following DPHSC (p < 0.001, effect size 1.05). Children with decayed and missing teeth demonstrated poor OHRQoL. In conclusion, DPHSC can improve the OHRQoL of 10-year-old children.

• The Journal of the Korea Contents Association
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• v.22 no.2
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• pp.420-430
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• 2022

The study attempted a comprehensive assessment of factors affecting health-related quality of life in the young-old and old-old. Data from the Community Health Survey for 5 years from 2015 to 2019 were analyzed. Research Results Health-related quality of life appears to be higher in the elderly than in the late-stage elderly, and various factors such as age, education level, household income, presence or absence of economic activity, presence or absence of moderate physical activity, stress or presence, and subjective health level Has been found to affect health-related quality of life. In particular, good or bad subjective health and subjective oral health had the greatest influence. In terms of the household type, the quality of life was high in young-old adults living in a three-generation household and old-old adults living in a one-generation household. Considering these characteristics, public policy programs should be developed and implemented to help the elderly with successful aging by improving their quality of life.

• Journal of Korean Dental Science
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• v.16 no.2
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• pp.128-148
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• 2023

Dementia is an umbrella term that describes the loss of thinking, memory, attention, logical reasoning, and other mental abilities to the extent that it interferes with the activities of daily living. More than 50 million individuals worldwide live with dementia, which is expected to increase to 131 million by 2050. Recent research has shown that poor oral health increases the risk of dementia, while oral health declines with cognitive decline. In this narrative review, the literature was based on the "hypothesis" that dementia and oral health have a close relationship, and appropriate oral health and occlusal rehabilitation treatment can improve the quality of life of patients with dementia and prevent progression. We conducted a literature search in PubMed and Google Scholar databases, using the search terms "dementia," "major neurocognitive disorder," "dentition," "occlusion," "tooth loss," "dental prosthesis," "dental implant," and "occlusal rehabilitation" in the title field over the past 30 years. A total of 131 studies that scientifically addressed dementia, oral health, and/or oral rehabilitation were included. In a meta-analysis, the random effect model demonstrated significant tooth loss increasing the dementia risk 3.64-fold (pooled odds ratio=3.64, 95% confidence interval [2.50~5.32], P-value=0.0348). Tooth loss can be an important indicator of cognitive function decline. As the number of missing teeth increases, the risk of dementia increases. Loss of teeth can lead to a decrease in the ascending information to the brain and reduced masticatory ability, cerebral blood flow, and psychological atrophy. Oral microbiome dysbiosis and migration of key bacterial species to the brain can also cause dementia. Additionally, inflammation in the oral cavity affects the inflammatory response of the brain and the complete body. Conversely, proper oral hygiene management, the placement of dental implants or prostheses to replace lost teeth, and the restoration of masticatory function can inhibit symptom progression in patients with dementia. Therefore, improving oral health can prevent dementia progression and improve the quality of life of patients.

• Journal of dental hygiene science
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• v.12 no.6
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• pp.624-633
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• 2012

This study was executed to provide the basic data that can be helpful for a program aiming at the enhancement of life quality or establishment of policy related to public health by analyzing the importance of health state among the middle-aged adults when it came to the decision of life quality. For 160 adults who were older than 40 years old, a survey was conducted and the results were derived by using t-test, one way ANOVA, and multiple regression analysis. Followings are the outcome of the study. According to such results, it was known that the level of general life quality and oral health related life quality were shown to be different depending on symptoms of depression and xerostomia. Therefore, it suggests that prevention and early intervention of depression and xerostomia will make a great contribution to improve the life quality among the middle-aged adults.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.4
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• pp.263-272
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• 2021

This study investigated the oral health knowledge and educational needs of adults by life cycle. We aimed to provide basic data for developing oral health education plans for well -aging. The survey was conducted online and through mobiles by Gallup Korea during February 2021. A total of 319 adults over the age of 19 were surveyed. The study aimed at investigating the general characteristics, the quality of life-related to oral health, knowledge of oral health, and the need for well-aging education. The PASW Statistics ver 18.0 statistical program was used for data analysis. The analysis of the data suggests that prevention was the highest priority among all age groups. Furthermore, there was a difference in the perceived educational need among different age groups. The cause of the youth, the treatment of the middle-aged and the elderly were significantly related to oral and systemic disease. The need for education related to oral diseases was ranked in the order of aches, bad breath, periodontal diseases, and tooth discoloration. For information, the subjects reached out to the internet, dental and medical institutions, and public health centers. The teaching methods experienced by those surveyed included lectures combined with experience, videos, and expert lectures. We believe that this study can be used to develop an education plan that reflects the needs of the subjects when conducting life cycle education for well-aging.

• Journal of dental hygiene science
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• v.12 no.6
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• pp.591-599
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• 2012

The purpose of this study was to analyzed the major factor variables against oral health behaviors and oral health state and quality of life (QOL) for some residents in Gyeongsangnam-do area. This study was based on the PRECEDE model as a theoretical model for diagnosis in health education needs. Total data 697 were analyzed by PASW 18.0 program. Results for this study were as follows: Firstly, t-test results in sex had statistically significant in predisposing, reinforcing, oral health behavior, health${\cdot}$QOL factor, education had statistically significant in predisposing, reinforcing, health${\cdot}$QOL factors, also, number of teeth had statistically significant in health${\cdot}$QOL factor. Secondly, ANOVA results in age had statistically significant in predisposing, enabling, health${\cdot}$QOL factor, area had statistically significant in health${\cdot}$QOL factor, also, economic had statistically significant in reinforcing, oral health behavior. Thirdly, in CATREG analysis, oral health behavior as the response variable results in had statistically significant in sex, predisposing, reinforcing, enabling factor and its explanation was 28.3%. Lastly, in CATREG analysis health${\cdot}$QOL as the response variable results in had statistically significant in age, number of tooth, enabling, oral health behavior factor and its explanation was 17.9%. So, results from this data we could contribute to identify oral health behavior patterns in Gyeongsangnam-do area residents.