• Journal of agricultural medicine and community health
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• v.43 no.4
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• pp.224-233
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• 2018

Objectives: This study was conducted to identify the relations between multiple chronic diseases and peridontal diseases in Korean adults. Methods: A total of 4,142 cases was set for analysis, who aged 35 and over and finished with the third year health survey and oral health check-up of the fifth Korea National Health and Nutrition Examination Survey(2012). Peridontal disease was defined if community periodontal index(CPI) was 3(formation of paradental cyst of more than 4mm) or 4(formation of paradental cyst of more than 6mm). Results: The subjects consisted of 48.5% male and 51.5% female. The prevalence rate of peridontal disease was found to be 30.1% in total. In peridontal disease the more the age increased, and the lower the education level and income level as well as the more where the residential area was rural, the higher the prevalence rate was(p<0.01). According to the number of multiple chronic conditions the prevalence rate of periodontal disease accounted for 27.8%, 31.9%, 33.1%, and 35.2% when there were 0, 1, 2, and 3 or more chronic diseases respectively. As a result of logistic regression analysis, gender, age, education level, residential area, current smoking, and use of oral hygienic products were found to be significant factors on peridontal disease. Conclusions: This research revealed the prevalence rate of peridontal disease was 30.1% in Korean adults and health behaviors affecting on periodontal disease were more significant.

• Journal of Korean society of Dental Hygiene
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• v.16 no.1
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• pp.85-92
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• 2016

Objectives: The purpose of this study was to investigate comparison of the effectiveness on knowledge improvement before and after the oral health education focusing on foreign students. Methods: A self-reported questionnaire was filled out by 40 foreign students in Sun Moon University from June 2 to September 30, 2014. The experimental group had an online oral health education and the control group had an off line education. The questionnaire consisted of oral health(10 items), toothbrushing(10 items), dental caries(10 items), periodontal disease(5 items), tooth sensitivity(5 items), oral cancer(6 items), and smoking(5 items). The data were analyzed by SPSS Win 18.0 program. Results: Knowledge scores of online education increased to average 1.257 points, and that of offline education was average of 2.56 points. There were statistically significant results for toothbrushing, dental caries, periodontal disease, tooth sensitivity, oral cancer and TMD except for smoking in offline education group. Conclusions: This study suggests that the offline oral health education is more effective than online oral health education.

• Journal of the Health Care and Life Science
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• v.11 no.2
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• pp.393-405
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• 2023

Oral diseases have been reported to affect approximately 3.5 billion people worldwide, and in Korea, gingivitis and periodontal disease ranked first in the most frequent diseases from 2019 to 2021. Microorganisms that cause oral diseases include not only some bacteria such as Streptococcus mutans, Porphyromonas gingivalis, Fusobacterium nucleatum, Streptococcus gordonii, Leptotrichia buccalis, Prevotella, and Treponema, but also fungi Candida albicans and archaea Methanobrevibacter oralis. In the process by which oral microorganisms cause periodontal disease, bacteria such as Streptococcus mutans first proliferate to form a biofilm, and then obligate anaerobes, opportunistic bacteria, and pathogens attach, proliferate and settles down, forming plaque in the subgingival area of the host with weakened immunity. In this way, various interactions within the community are important in causing oral disease. Furthermore, substances and inflammation resulting from oral microorganisms and oral diseases are closely related to the occurrence of digestive diseases, diabetes, cardiovascular diseases, cognitive function, rheumatoid arthritis, premature birth, and cancer, and vice versa.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.1
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• pp.389-396
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• 2015

This study examined the relationships among impaired fasting glucose (IFG), diabetes and periodontal disease. The data from 10,856 adults (aged over 19 years) was derived from the Fifth Korean National Health and Nutrition Examination Survey, which was conducted in 2010 and 2012. Adjusting the related confounders, multiple logistic regression analysis showed that periodontitis were related to gender, age, education level, smoking and diabetic status (p<0.001). These findings suggest that abnormal fasting glucose, which is a predisposing factor for diabetes mellitus, does not appear to be a risk indicator for periodontal disease. On the other hand, if patients do not take steps to prevent or delay diabetes, prediabetes is likely to develop into type 2 diabetes within 10 years. Therefore, patients with prediabetes need to undergo continuous examinations and management of periodontal disease.

• Journal of Periodontal and Implant Science
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• v.35 no.2
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• pp.371-381
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• 2005

The masticatory function of tooth is maintained by the periodontal health, and periodontal health is also maintained by the masticatory function. Bite forces are withstanded by the PDL, and this thought to be through the viscoelastic theory. Mobility test and Bite force test are used to evaluate the viscoelastic theory of the PDL. In this study, the bite force test was used. In the same conditions of quantity of the supporting tissue, the maximum bite force according to the quality of the supporting tissue was evaluated. The study was conducted on 40 patients with moderate adult periodontitis, who were indications to the modified widman flap treatment. The maximum bite force in the premolar and molar regions were tested before treatment, 3weeks and 4 weeks after treatment. and the results were as follows. 1. In the premolar region, 3 weeks and 4 weeks after treatment showed higher maximum bite force than before treatment. And in the molar region the maximum bite force decreased 3 weeks after treatment, but increased after 4 weeks, compared to before treatment. 2. In the 1st premolar, there were only significant difference between before and 3 weeks after treatment, and between and 4 weeks after treatment. 3. In the 2nd premolar, there were only significant difference between before and 3 weeks after treatment, and between and 4 weeks after treatment. 4. In the 1st molar, there were no significant difference between before, 3 weeks after treatment, 4 weeks after treatment. 5. In the 2nd molar, there were no significant difference between before, 3 weeks after treatment, 4 weeks after treatment. From the results above, it shows that there were improvements in the maximum bite force through specific periodontal treatments, and thus it can be considered in clinical situations, that selection of the prosthodontic material, decisions of extraction, evaluation of the prognosis after periodontal treatment is a helpful method.

• Journal of dental hygiene science
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• v.23 no.2
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• pp.169-175
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• 2023

Background: Although microbial infection is direct cause of periodontal disease, various environmental factors influence the disease severity. Aging is considered a risk factor for oral diseases, with the prevalence of periodontal diseases increasing with age. Moreover, senescence-associated secretory phenotype (SASP) expressed in age-related diseases is a key marker of chronic inflammation and aging phenotypes. Therefore, this study aimed to understand the relevance of senescent cells to periodontal health and disease, investigate the possibility of regulating the expression of aging- and osteolysis-related factors in gingival fibroblasts, and investigate the effect of senescence induction in gingival fibroblasts on osteoclast differentiation in mouse bone marrow-derived macrophages (BMMs). Methods: After stimulation with 400 nM hydrogen peroxidase, human gingival fibroblasts (HGFs) were examined for senescence-associated β-galactosidase. Western blot and enzyme-linked immunosorbent assays were performed to assess the expression of SASP. Osteoclast formation was assessed in BMMs using a conditioned medium (CM) from hydrogen peroxide-stimulated HGFs. Osteoclastic differentiation was investigated using tartrate-resistant acid phosphatase (TRAP) staining and activity. Data analysis was performed using SPSS version 25.0. Results: The expression of senescence-related molecules, including p53, p16, and p21, and the expression of osteolytic factors, including IL-6, IL-8, and IL-17, were found to be significantly higher in the hydrogen peroxide-stimulated HGF than in the control group. Regarding the indirect effects of senescent gingival cells, the number of osteoclasts and TRAP activity increased according to the differentiation of BMM cultured in CM. Conclusion: Our results on the of between osteolytic factors and cellular senescence in gingival fibroblast cells helped to reveal evidence of pathological aging mechanisms. Furthermore, our results suggest that the development of novel therapies that target specific SASP factors could be an effective treatment strategy for periodontal disease.

• Journal of the Korea Convergence Society
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• v.9 no.12
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• pp.295-299
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• 2018

The aim of this study was to evaluate the association between the level urine cotinine and periodontal diseases in Korea adults. The date from the 2014, 2015 Korean National Health and Nutrition Survey were used, and 5,146 subjects over 30 years were included in the analysis. Periodontal disease was assessed using the Community Periodontal Index. Binary logistic regression model was used to estimate the odds ratio with 95% confidence intervals. There was a 2.08-fold (95% CI; 1.73-2.05) increased in the odds of periodontal disease for those with any ETS exposure compared with those with non-smokers following adjustment for sex, age, education, and income. The level of urine cotinine also showed a dose-dependent increase in extent of periodontal disease. Among persons in the Korea who had never used tobacco, those exposed to ETS were more likely to have periodontal disease than were those not exposed to ETS. In the future, voluntary compliance of smokers to measures to reduce ETS exposure should be encouraged.

• Journal of Korean society of Dental Hygiene
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• v.17 no.5
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• pp.805-816
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• 2017

Objectives: The purpose of this study is to analyze the oral health knowledge among workers at nursing homes, and needs to educate them on elderly oral care. Methods: A self-reported questionnaire was filled out by 241 workers at nursing homes in Gwangju and Jeonnam, Korea from May to June, 2016. The data were analyzed with the SPSS 19.0 program for independent t-test or one-way ANOVA analysis. Results: The data analysis showed that workers at nursing homes had lower knowledge about periodontal diseases (65.1%) than about denture management (78.5%). The knowledge of periodontal disease and denture management of workers with experience of oral care education for elderly was significantly higher than that of non-experienced ones (p<0.01). On the question whether those workers should get oral health care education is necessary or not, respondents answered positively (They scored 4.10 points on the 5-point Likert scale from 1 point - Not at all to 5 points - definitely yes). Conclusions: It is necessary to provide elderly oral care education to workers at nursing homes. Furthermore, oral health professionals should be deployed for systematic and practical oral care for elderly.

• Journal of agricultural medicine and community health
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• v.21 no.1
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• pp.75-84
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• 1996

This study was conducted to reveal the relationship between the oral health status and their Knowledges about the oral health of the freshman of colleges in Taegu city. The evaluation for the oral health status through the oral examinations and their analysis of their knowledges on the periodontal disease were done on 216 males and 205 females from 1st to 30th April, 1993. The obtained results were as follows: The oral health status of 421 subject showed that 35.7% was good, 59.1% fair, and 6.2% poor, respectively. In case of the oral health status of females, 41.9% was good and 4.4% poor, and then in males 27.8% was good, 7.8% poor. The oral health status of the females was better than that of the males(p=0.006). The 52.1% among the good oral health status group answered that the dental plaque is the bacterial membrane causing dental disease, and the 23.1% among the poor oral health status group answered same as the above. The 91.8% among the good oral health status group answered that the periodontal diseases can be prevented, and the same answer came out from 15.4% of the poor group. It was found that the better oral health status group had the better knowledges about periodontal disease(p=0.001). For the question about their experiences in scaling the 30.1% of good oral health status group and the 23.1% of poor group answered that scaling is very helpful to periodontal health(p=0.001). About the experience of the education for tooth brushing, the 53.2% of good oral health status group and the 7.6% of poor group had the experiences to receive the education for tooth brushing(p=0.001). About the frequency and the time of tooth brushing, the 53.4% of good oral health status group brushed their teeth more then 3 times a day and 41.8% of good group brushed their teeth after every meal(p=0.001). The result of multiple regression analysis according to the simplified oral health index indicated that the variable having an effect on the oral health status was the tooth brushing frequency, knowledge of periodontal disease prevention, experience in education of tooth brushing and time of tooth brushing(p=0.001).

• Journal of Periodontal and Implant Science
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• v.31 no.4
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• pp.803-810
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• 2001

The purposes of this study were to investigate the relationship between cigarette smoking levels and periodontal status. 199 subjects, consisting of male 127 and female 72, classified by smoking levels and duration were selected: Patients who had smoked for more than 20 cigarettes/day were considered heavy smokers, 10 to 19, moderate smokers; 1-9, light smokers:0, non-smoker. And smokers were divided into ones who had smoked for more than 20 years, 10-19 years, less than 10 years and non-smokers. Heavy smokers and moderate smokers showed significantly greater pocket depths, less clinical attachment levels, more molar furcation involvements, greater alveolar bone loss and higher scores of plaque index than light smokers and non-smokers,(p < 0.05). When the duration of smoking was considered as a factor, scores of clinical parameters were worse and alveolar bone loss were significantly greater in long-term smokers, who had smoked for more than 20 years. In conclusion, cigarette smoking is associated with periodontal status.