• 한국치위생학회지
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• 제14권3호
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• pp.303-310
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• 2014

Objectives : The purpose of the study is to investigate the effects of bite force by gender and physical features. Methods : A self-reported questionnaire was filled out by 212 college students in Chungnam province from October to December, 2013. The questionnaire consisted of oral health condition. The bite force of the first molar teeth was measured. Results : Males showed the greater bite force than females(p<0.001). Those who had temporomandibular joint(TMJ) disorder suffered from mouth opening difficulty and weaker bite force than those who had not(p<0.05). Those who had malocclusion showed weaker bite force (p<0.01). Those who had a habit of chewing gums tended to have greater bite force than those who had not(p<0.05). The bite force was correlated with height(r=0.309), weight(r=0.345), and BMI(r=0.249)(p<0.01). Conclusions : Males showed greater bite force than females. The temporomandibular joint (TMJ) disorder, subjective malocclusion, and eating habit also affected the bite force.

• 한국치위생학회지
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• 제13권6호
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• pp.1015-1021
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• 2013

Objectives : The purpose of the study is to find the association between obesity and periodontal disease by age in adults. Methods : The subjects were 5,728 adults in the first year of the Fifth National Health and Nutrition Examination Survey in 2010. The questionnaire included oral examinations, periodontal disease, and body mass index screenings. Chi-square test was performed to confirm the periodontal disease. Results : The impact of obesity and waist circumference on body mass index (BMI) showed high risk of periodontal diseases. The risk of periodontal disease according to BMI by age was closely related to obesity ranged form 35 to 59 yeard old. The increased waist circumference and those who were in 35 to 59 and over 60 years old had a significant association with the periodontal disease risk. Conclusions : Obesity and periodontal disease are closely related factors. Those aged from 35 to 59 are the high risk groups of potential obesity and periodontal disease. It is very important to control well-balanced nutrition and physical activity that can prevent the progression of periodontal disease.

• 한국치위생학회지
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• 제17권3호
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• pp.343-354
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• 2017

Objectives: The purpose of this study was to provide a satisfactory and reliable dental care service for the patients and to establish a plan to raise the perception about dental infection control. Methods: The perception of infection control in the dental clinic of the patients was examined who visited to dental clinics, over 20 years old and living in Seoul and Gyeonggi province since December 2016. The questionnaire was used as the survey tool, and 274 questions in the questionnaire were analyzed. Results: Results of examined factors affecting the perception of dental infection control in dental clinics show that the perception of infection control in dental clinics is affected by the degree of university graduates (p<0.05), full-time workers (p<0.01), housewives (p<0.001), and oral health concerns (p<0.05), the perception of infection control of dental medical personnel (p<0.001) in order. Conclusions: Dental medical personnels must thoroughly wash their hands, wear uniforms, wear personal protective equipment, and thoroughly clean and disinfect the interior of a dental clinic.

• 대한치과마취과학회지
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• 제13권3호
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• pp.103-110
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• 2013

Background: Recently the use of sedation by pediatric dentists in Korea is increased. This study describes training programs about sedation practices in Korean pediatric dentistry residency program. Methods: A questionnaire was filled in by participants of Korean Academy of Pediatric Dentistry on 17th-18th August, 2008. Also the data about sedation practices of the training institution is collected by phone call. Results: Seventy two percent of respondents used sedation. Most of them used sedation with agents under 25% of their patients. Distribution of ages in patients sedated with agents was 3 years, 4-5 years, under 2 years, 6-10 years, and more than 10 years. Determinative factors of using sedation were behavior management, number of visiting, amount of treatment and general condition, and oral route was the most favorable route. Sixty six percent of them have failed on sedation, and thity percent of them have rarely failed on sedation. Only fifty percent of dentists using sedation completed the cardiopulmonary resuscitation course. Conclusions: For safety, dentists using sedation need to be educated about emergency equipment and management. Especially medication dose, use frequency and the detail related to treatment procedure should be discussed carefully. Also putting a patient under general anesthesia and taking emergency measures should be discussed with Korean Dental Society of Anesthesiology.

• Clinical and Experimental Reproductive Medicine
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• 제7권1_2호
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• pp.35-38
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• 1980

Korean family planning program has been adopted as a part of the Economic Development Plan with strong national government backup. After initiation of family planning program, the increase rate of total population declined from 2.6 percent during 1955-1960, to 2.1 percent in 1960-1975, and 1.6 percent in 1979. Of course, we do not ascribe this population increase rate decline to the national family planning program alone. Other contributing factors have been changes such as growing numbers of induced absortions, a rising marriage age and economic development. Currently, 2,600 family planning workers are assigned in all myun of the country. 21 percent of the works are registered nurse, 9 percent are midwife and aid nurses occupy 70 percent (Table 1). Authorized clinics are 2,329 which composed 1,765 IUD clinics, 1,070 vasectomy clinics and 1,150 Fimale sterilization clinics (Table 2). Cumulative contraceptive services provided by government program, 1962-1974 is illustrated in Table 3. After government program in family planning has been initiated (1962-1978), estimated number of births averted by each methods was measured (Table 4). From 1962 to 1978, tendency of contraceptive acceptors is illustrated in Table 5 showed that IUD, oral pill and condom program is decreasing and in other hand, sterilization program is increasing very much. Attitude change toward family size (1965-1978), contraceptive practice and son preference are showed in Table 7, 8, respectively. Auther concluded that future program in family planning should target to the point, that smaller family size norm for maternal health should be emphasized rather than smaller size family for national development.

• 한국축산식품학회지
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• 제43권1호
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• pp.157-169
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• 2023

Effects of culture supernatants of Lactobacillus reuteri MG5346 (CS-MG5346) on receptor activator of nuclear factor-kappa B ligand (RANKL)-induced osteoclastogenesis were examined. CS-MG5346 treatment up to 400 ㎍/mL significantly reduced tartrate-resistant acid-phosphatase (TRAP) activity, the phenotype biomarker of osteoclast, without affecting cell viability. CS-MG5346 inhibited the expression of osteoclast specific transcriptional factors (c-fos and nuclear factor-activated T cells c1) and their target genes (TRAP, cathepsin, and matrix metallo-proteinase-9) in a dose-dependent manner (p<0.05). The administration of L. reuteri MG5346 (2×10⁸ CFU/day) for 8 wks significantly improved furcation involvement, but no difference was observed in alveolar bone loss in ligature-induced experimental periodontitis rats. The elevated RANKL/osteoprotegerin ratio, the biomarker of periodontitis, was significantly lowered in the gingival tissue by administration of L. reuteri MG5346 (p<0.05). L. reuteri MG5346 showed excellent stability in simulated stomach and intestinal fluids and did not have antibiotic resistance. Based on the results, L. reuteri MG5346 has the potential to be a promising probiotic strain for oral health.

• 치위생과학회지
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• 제23권4호
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• pp.255-263
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• 2023

Background: This study used text mining techniques to determine public perceptions of dental fear, extracted keywords related to dental fear, identified the connection between the keywords, and categorized and visualized perceptions related to dental fear. Methods: Keywords in texts posted on Internet portal sites (NAVER and Google) between 1 January, 2000, and 31 December, 2022, were collected. The four stages of analysis were used to explore the keywords: frequency analysis, term frequency-inverse document frequency (TF-IDF), centrality analysis and co-occurrence analysis, and convergent correlations. Results: In the top ten keywords based on frequency analysis, the most frequently used keyword was 'treatment,' followed by 'fear,' 'dental implant,' 'conscious sedation,' 'pain,' 'dental fear,' 'comfort,' 'taking medication,' 'experience,' and 'tooth.' In the TF-IDF analysis, the top three keywords were dental implant, conscious sedation, and dental fear. The co-occurrence analysis was used to explore keywords that appear together and showed that 'fear and treatment' and 'treatment and pain' appeared the most frequently. Conclusion: Texts collected via unstructured big data were analyzed to identify general perceptions related to dental fear, and this study is valuable as a source data for understanding public perceptions of dental fear by grouping associated keywords. The results of this study will be helpful to understand dental fear and used as factors affecting oral health in the future.

• 한국융합학회논문지
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• 제11권6호
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• pp.401-410
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• 2020

본 연구는 당뇨병을 진단받고 약물요법 중인 청장년층을 비약물적 요법을 병행하는 집단과 그렇지 않은 집단으로 나누어 웰빙에 영향을 미치는 주요 변수들의 관계를 규명하고, 신체활동의 관련성을 알아보고자 한다. 본 연구의 자료는 2017년 지역사회건강조사(CHS) 자료를 활용하여 경구약물치료 중인 20세~49세의 당뇨환자 1,480명을 연구 대상자로 분석하였다. 자료분석은 SPSS 25.0과 AMOS 25.0을 이용하여 개인특성요인(사회경제적 수준, 식습관, 건강 습관, 건강검진이행)의 웰빙에 대한 경로분석을 실시하고 신체활동의 매개효과를 검증하였다. 본 연구의 주요 결과로는 집단 간 신체활동의 매개효과에서 차이가 확인되었다. 약물요법만 시행하는 집단의 경우 신체활동의 매개효과는 확인되지 않았다. 비약물적 요법을 병행하는 그룹에서는 신체활동의 직접적 효과와 개인특성요인들의 간접적 효과가 확인되었다. 본 연구결과를 바탕으로 약물치료를 시작한 청장년층 환자들의 특성과 질병관리 수준을 반영한 웰빙 향상 전략 수립이 필요하다.

• 치위생과학회지
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• 제14권4호
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• pp.554-562
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• 2014

본 연구는 TPB 모형을 기본으로 자기효능감 변수를 추가하여 연구모형을 설정한 후, 초등학생의 칫솔질행동에 영향을 미치는 요인을 확인하고자 하였다. 인천광역시에 위치한 2개의 초등학교 4, 5, 6학년 443명을 대상으로 2012년 10월 18일부터 11월 30일까지 자기기입식 설문조사를 실시하였다. 자료의 분석은 PASW 18.0 for Windows를 이용하였으며, 칫솔질에 대한 태도, 주관적 규범, 지각된 행동통제, 자기효능감이 칫솔질 행동의도와 칫솔질 행동에 미치는 영향을 확인하기 위하여 TPB 모형에 따라 변수를 투입하여 위계적 다중회귀분석을 시행하였다. 칫솔질 의도에 가장 큰 영향을 미치는 요인은 주관적 규범(${\beta}=0.343$)이었고, 다음으로 자기효능감(${\beta}=0.171$), 지각된 행동통제(${\beta}=0.163$), 칫솔질에 대한 태도(${\beta}=0.135$)의 순이었다. TPB 모형에 따라 칫솔질 행동을 종속변수로 위계적 다중회귀분석을 한 결과 칫솔질 행동에 영향을 미치는 요인은 칫솔질 의도(${\beta}=0.355$)와 자기효능감(${\beta}=0.113$)이었으며, 지각된 행동통제는 제외되었다. 이상의 결과를 종합해 볼 때, 아동에게 올바른 칫솔질 습관을 형성시키기 위해서는 아동에게 영향을 주는 부모와 교사 등이 관심을 가지고 칫솔질 지도를 수행할 수 있게 해야 한다. 또한 구강보건교육을 통해 아동이 칫솔질의 중요성을 인지하게 하고, 스스로 칫솔질할 수 있다는 자신감을 심어줄 필요가 있으며, 아동이 칫솔질을 쉽게 실천할 수 있는 환경을 제공할 필요가 있는 것으로 생각되었다.

• Journal of Preventive Medicine and Public Health
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• 제36권3호
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• pp.279-288
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• 2003

Objectives : Evidence for an effect of rerroductive factors on colorectal carcinogenesis is not yet consistent. Little research has been conducted to investigate whether reproductive factors were associated with colorectal adenomas that are the precursors of colorecta1 cancer, We evaluated the relationships between reproductive factors and the degree of dysplasia of the colorectal adenoma and cancer as colorectal adenoma-carcinoma sequence. Methods : For this study, 241 adenoma cases with histopathologically confirmed incident colorectal adenoma, 76 cancer cases with colorectal cancer and 1677 controls were collected from Our Lady of Mercy Hospital, The Catholic University of Korea, during 1994-1999. Before colonoscopy, information on demographic characteristics, reproductive factors, life style habits and dietary intake were obtained by interviewed questionnaire. Adjusted OR and 95% CI were estimated by using polytomous logistic regression model, Potential confounders that were selected based on the goodness of fit Statistics and interaction between risk factors were considered in this adjustment. The Wald statistic was calculated to test the heterogeneity of the odds ratios for each case. Results .: Postmenopausal women with natural menopause were found to be positively associated with the risk of mild dysplasia adenoma (multivariate-adjusted OR : 2.59, 95% CI=1.1-0.2). Parity was found to be negatively associated with the risk of colorectal lancer (age-adjusted OR : 0.40, 95% CI=0.2-0.9), but did not significantly decrease the risk of colorectal cancer (multivariate-adjusted OR : 0.95, 95% CI=0.3-2.9). Me associations were seen between a9e at menarche, breast feeding, induced abortion, oral contraceptive use, menopausal types, menopausal age or hormone replacement therapy (HRT and the degree of dysplasia of the colorectal adenoma and cancer. However, none of these associations differed' significantly between the degree of dysplasia of the colorectal adenoma and cancer. Conclusions : These findings suggest that postmenopausal women with natural menopause may experience increased risk of mild dysplasia adenorna among colorectal adenoma-carcinoma sequence.