• 보건교육건강증진학회지
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• 제27권1호
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• pp.61-69
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• 2010

Objectives: The aim of this study was to examine socioeconomic inequalities in oral health and to investigate the extent to which socioeconomic disparities in oral health are attenuated by oral health related consciousness and behaviors. Methods: We used data from the third 2006 Korea National Oral Health Survey(KNOHS) and a total of 3,457 subjects aged over 18 years were analyzed. The dependent variable was periodontal conditions which is devided into dichotomy, that is, health and ill-health, using the Community Periodontal Index(CPI) in KNOHS. Socioeconomic status(SES) were measured by educational attainment, income and residential area. Age, gender, oral health consciousness(self-assessed oral health status, concern about oral health and self-perceived dental treatment needs and behaviors(brushing, use of dental floss and dental visits) were adjusted in binary logistic regression analysis. Results and Conclusion: The results show that oral health consciousness and behaviors do not mediate the relationship between SES and periodontal health and there might be limitations to attenuate socioeconomic disparities in oral health only by changing of either oral health consciousness or(and) behaviors. Our findings suggest that more definite oral health policies and dental health education among adults with lower education will need in order to improve oral health.

• Journal of Periodontal and Implant Science
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• 제31권4호
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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.

• 한국산학기술학회논문지
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• 제15권6호
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• pp.3706-3713
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• 2014

본 연구의 목적은 성인 근로자의 치주질환 유병 여부와 관련하여 인구학적, 구강 행태적 위험 요인을 알아보고자 시행하였다. 연구대상 및 방법은 제5기 3차 국민건강영양조사 자료를 활용하여 20-64세 한국 성인 근로자 1650명을 대상으로 시행하였다. 연구결과, 치주조직 유병자에 대해서 성별, 연령, 소득수준, 교육수준, 전신질환, 수면시간, 구강건강수준, 씹기 문제 및 저작 불편함이 위험요인으로 나타났다. 이중 가장 많은 영향력은 씹기 문제와 저작불편에 문제가 있는 근로자에서 3.5배 이상 치주조직병에 이환될 가능성이 높게 나타났다. 본 연구 결과를 통해서 한국 근로자에 있어서 치주질환 유병의 다양한 위험요인이 존재하고 있음 알 수 있었으며, 향후 치주질환의 유병율을 줄이기 위해서는 정기적인 구강검진과 건강검진, 충분한 수면을 취하고 스트레스를 낮추어야 할 뿐만 아니라, 소득수준과 교육수준의 차이와 같은 사회경제적 불평등 해결을 위한 제도적인 노력이 필요할 것으로 보인다.

• 한국융합학회논문지
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• 제9권12호
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• pp.295-299
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• 2018

본 연구의 목적은 30세이상 성인을 대상으로 간접흡연노출과 치주질환과의 관련성을 파악하고자 하였다. 연구자료는 2014년, 2015년 국민건강영양조사 자료를 이용하였으며, 5,146명을 최종분석대상자로 선정하였다. 치주질환은 지역사회 치주지수로 파악하였다. 이분형 로지스틱회귀분석을 이용하였으며, 95% 신뢰구간을 산출하였다. 본 연구결과 성별, 연령, 교육수준, 그리고 수입을 보정한 경우에서 요코티닌 수준이 50ng/mL미만에 비해 550ng/mL이상인 경우에서 치주질환 위험이 2.08배(95% CI=1.73-2.50) 높게 나타났다. 요코티닌 수준과 치주질환 위험 증가에 대한 용량-반응관계가 나타났다. 본 연구결과 간접흡연자에서 요코티닌 수준이 증가할수록 치주질환 위험이 증가하는 것으로 나타났다. 향후 간접흡연에 대한 노출을 감소시키기 위해 흡연자의 자발적인 금연참여를 권장하여야 할 것이다.

• Journal of Periodontal and Implant Science
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• 제49권4호
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• pp.206-214
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• 2019

Purpose: The purpose of this study was to examine the association between the intake of semi-solid yogurt and periodontitis in Korean adults using a national database. Methods: The data analyzed in this study are a subset of the sixth Korean National Health and Nutrition Examination Survey conducted in 2015 by the Korea Centers for Disease Control and Prevention. The sample size for this study was 4,727. We collected data on sociodemographic characteristics, oral health-related variables, oral and general health status, and intake of semi-solid yogurt. Semi-solid yogurt intake (YI) was calculated by multiplying the frequency of YI over the previous week by the average intake per serving. We assessed periodontal conditions using the Community Periodontal Index (CPI) and defined periodontitis as a CPI score ${\geq}3$. Multivariate logistic regression analyses were performed after adjusting for sociodemographic variables, and oral and general health behaviors and status. Results: The mean weekly YI among those without periodontitis ($1.03{\pm}0.06cups$) was significantly higher than among those with periodontitis ($0.77{\pm}0.08cups$) (P<0.001). Individuals who consumed more than 2 cups of yogurt per day were 76% less likely to have periodontitis than those who consumed less than 1 cup of yogurt per week after adjusting for all covariates (odds ratio, 0.24; 95% confidence interval, 0.10-0.60). Conclusions: We found a significant association between increased intake of semi-solid yogurt and periodontal health. We therefore recommend daily consumption of semi-solid yogurt as a probiotic to improve periodontal health. Further longitudinal studies are required to elucidate plausible mechanisms through which probiotics impact periodontal disease, considering both periodontal pathogens and clinical periodontal parameters.

• Journal of Periodontal and Implant Science
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• 제25권3호
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• pp.539-556
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• 1995

Periodontal therapeutic modalities should be re-establishing and regenerating the periodontal tissue previously lost to the disease. To achieve periodontal regeneration, periodontal ligament cells must selective migrate to the deneded root surface, attached and proliferated it. Local pH concentration is one of the most factors that periodontal regeneration. The aims of this study were to examine on biological effects of pH to the human periodontal ligament cells in vitro, especially on the cell morphology, attachment, activity, vitality and viability. Human periodontal ligament cells were cultured from extracted tooth for non-periodontal reason. Immediately after extraction, any soft tissue adhering to the cervical parts of the roots was carefully removed with a sterile curette. To produce different pH levels in the media, Eagle's MEM was adjusted from pH 6.6 to 8.2 in 0.2 intervals with 1 M NaOH and 1 N HCl. After cultivation, Then, Periodontal ligament cells were cultured at pH ranging from 6.6-8.2. attachment assay was done at 1, 2 day incubation and activity assay was done at 1, 2, 3 day incubation. The experiments were evaluated by scaning electron microscopic techniques (HITACHIX-650 Scaning Electron Microanalyzer, Tokyo, Japan), MTT assay, and the cultured periodontal ligament cells were fixed in neutral formalin for 24 hours and immunohistochemically processed by PCNA for proliferating ability. The surviving cells in the medium showed slightly increased volume and widening intercellular distances at low concentration of pH than control group (pH 7.4), and apparently shrinkage at high concentration of pH than control group (pH 7.4). The results of the statistical analysis from the experiment on attachment, vitality and viability were as follows. Attachment of periodontal ligament cells at 1st and 2nd day, similar attachment rate of low concentration pH compared with control value (pH 7.4). But above pH 8.0, attachment rate were statistically significant decrease from control value(P<0.05). Periodontal ligament cell's activities were maximum at pH 7.6 by MTT assay. Similar with control value at low concentration of pH. But, the activities were statistically significant decrease at high concentraration of pH(P<0.05). Cellular proliferating rate (PCNA index) were statistically significant decrease from control value at low and high concentration of pH(p<0.05). This results suggested that hjgh concentration pH, in other words, alkali pH was cytotoxic effects on human periodontal ligament cells in vitro.

• 한국치위생학회지
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• 제12권3호
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• pp.631-640
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• 2012

Objectives : This study mean to confirm the antibacterial activity of a garlic extract widely culturing in our region and was to determine the effect of dentifrice containing 0.1% extracts of garlic on dental plaque and gingivitis in a double blind and clinical studies in 50 healthy adults aged from 20 to 22 years who provided a consent for their participation. Methods : The antibacterial activity was evaluated using triple distilled water and the Kirby-Bauer disk diffusion method and the minimal inhibitory concentration(MIC) against various pathogens for periodontal disease, such as P. gingivalis 381(ATCC33277), was estimated. The experimental groups classified according to the concentration of garlic extract used: 10,000ppm(A), 5,000ppm(B), 2,500ppm(C), 1,000ppm(D). Oral examination of subjects was performed through clinical periods and on day of baseline, 6, 12, 19, 25 days plaque index and gingival index were scored by Turesky' modified index and Loe & Silness index. After 12, 19, 25 days use of their respective dentifrices, statistically decreases of plaque index, gingival index were shown in both the experimental and the control group, respectively. Results : There was significant antibacterial activity in the "2,500ppm(C)" group against P. gingivalis 381. Experimental group exhibited significantly the lower plaque levels and the higher levels of gingival health by the use of the dentifrices contained extract of garlic from 6 days compare with control group(p<0.05). The degree of decrease was more significant on gingivitis level of the experimental group than the control group(p<0.05). Conclusions : This findings indicated that the oral products containing a garlic extract is effective in preventing and treating periodontal diseases, and has potential value in inhibiting periopathogens.

• 한국치위생학회지
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• 제17권2호
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• pp.215-224
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• 2017

Objectives: The objective of the study was to investigate the oral health index in orthodontic patients by dividing the patients into two groups; the OHCP (Oral Health Care Program)group and the control group. Methods: The subjects in Busan were divided into two groups, including the OHCP group (205 patients) and the control group (119 patients), during orthodontic treatment that took place from October 2015 to October 2016. The oral health index was subdivided into three groups according to the oral interest level of the OHCP and control groups. The oral health index used was Simplified Oral Hygiene Index (S-OHI) and Community Periodontal Index of Treatment Needs (CPITN). Results: When the degree of oral interest was compared, he OHCP group before application and after application saw a significant difference (p<0.001) in all the variables except the S-DI. Meanwhile, the control group saw no significant difference in most variables. after OHCP application, The OHCP group was significant differences in all variables (p<0.001), and the control group was no significant difference in most variables. Conclusions: Oral hygiene management for orthodontic patients should be systematically and professionally programmed differently from that for general dental treatment patients. As such, dental hygienists should take this into consideration and proactively develop and research programs similar to OHCP for orthodontic patients.

• Journal of Oral Medicine and Pain
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• 제1권1호
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• pp.8-13
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• 1973

The authors had studied the oral environmental changes by salivary salivary pH, amount, periodontal Index in patient with active pulmonary tuberculosis patients. Among the subjects, The experimental group was consisted of 100 patients (50 males and 50 females) of 20-29 years and 100 persons of control group (50 males and 50 females) of 20-29 years. The measurement of salivary amount was performed with wide mouthed plastic (2 Inches) bottle for avoidance of Ionization of SiO2 by using of glass bottle and salivary pH was checked by pH meter 27 radiometer Copenhagen. The results are as follows : 1. The slivary pH does not appear to be characteristic of tuberculous paticents. 2. The obtained salivary amount indicated no significant to the tuberculous patients as compared to the obtained supposedely wealthg individuals. 3. The Russel Index wasfound higher and there had found more periodontal involvement(3 times than normal) in the experimental group.

• Journal of Periodontal and Implant Science
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• 제23권1호
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• pp.135-143
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• 1993

The investigation was undertaken to determin the altered function and structure of granulation tissue fibroblasts. Human granulation-tissue fibroblasts were cultured from periodontal chronic inflammatory lesions (SBI index : above 3) and compared with healthy gingival connective tissues fibroblasts a control(SBI index : below 1). Granulation tissue fibroblasts proliferated with a slower growth rate and exhibited larger cell size than control cells. Total protein profile of granulation tissue fibroblasts was almost identical to that of control cells with some exception. These results support tha theory that granulation tissue fibroblasts represent a distinct phenotype of fibrotic cells.