• Journal of the korean academy of Pediatric Dentistry
• /
• v.43 no.2
• /
• pp.213-220
• /
• 2016

In recent decades, dental erosion has received a considerable amount of attention with a steady increase of the prevalence. However, the awareness of this matter in our society, including dentistry is still lacking. Dental erosion is an irreversible loss of dental hard tissue leading to a complex condition. To prevent detrimental effects, it is important to detect conditions as early as possible and inhibit progression. In children and adolescents, early intervention is more important than in adults. As dental erosion is a multifactorial condition, dentists need to fully understand the phenomena and do systematic oral examination with thorough history taking for early diagnosis. When the main etiological factor is detected, it is necessary to make an effort to eliminate it and stop progression of the lesions with preventive measures. Restorative treatment should not be started unless substance loss reaches a certain level. Once the decision is made for treatment, care must be taken to choose the least invasive method.

• The Journal of the Korea Contents Association
• /
• v.9 no.6
• /
• pp.216-224
• /
• 2009

The purpose of this study was to examine the periodontal disease awareness and periodontal health status of industrial workers in an attempt to help facilitate their prevention and treatment of periodontal diseases. The findings of the study were as follows: 1. In regard to a knowledge acquisition route on periodontal diseases, the largest number of the industrial workers investigated(36.3%) learned about the diseases from dental hospitals. As to scaling cycle, the younger workers deemed it necessary to get their teeth scaled every six months. In contrary, the older workers considered it advisable to do that about once a year. Age made a statistically significant difference to that (p<.05). 2. As for the state of the periodontal diseases of the workers, the greatest group (26.5%) found themselves to have something between their teeth often. The second most prevalent peridontal disease was gingival bleeding(24.5%), and the third largest group(24.5%) had teeth that were sensitive to cold. The fourth greatest group(15.9%) had the swollen gums from time to time, and the fifth largest group(4.5%) had shaken teeth. 3. Concerning the cause of periodontal diseases, the largest group (48.8%) cited an incorrect toothbrushing. As to the prevention of periodontal diseases, the greatest group(66.8%) viewed the right toothbrushing as the best way for that as well.

• Journal of dental hygiene science
• /
• v.6 no.2
• /
• pp.55-63
• /
• 2006

The purpose of this study was to provide the basic data for preventing dental caries, and maintaining and enhancing oral health. The subjects of this study were 138 male and female students who were in the 6th grade of elementary schools in Gimpo city. This study investigated the number of decayed tooth and the factors related to the number of decayed tooth, by using the results of questionnaire and oral health survey over such subjects. So, this study obtained the following conclusions. 1. For the number of decayed tooth, 'nothing(D = 0)' was the highest as 37.7%, and 'from two to three' was 23.9%, 'more than four' was 21%, and 'one' was 17.4% in order. 2. For the frequency of visiting dental clinics within the last one year, 'one to two times' was the highest as 52.2%, and the children who have not visited dental clinics even one time during one year were 23.9%. 3. For average daily tooth brushing frequency, 'two times' was the highest as 71.7%. For the use of oral health devices besides toothbrushes, 'I don't use' was the highest as 54.3%. For the experience of sealant and fluoride application, 'nothing' was the highest as 86.9% and 71.3% respectively. For the recognition on the use of fluoride dentifrice, 'I don't know' was the highest as 66.9%. 4. The socio-demographic factors related to the number of decayed tooth were mother's age, mother's background, mother's employment, and after-school fosterer(p > 0.05). 5. The oral health care factors related to the number of decayed tooth were average daily tooth brushing frequency, the use of oral health devices besides toothbrushes, and the experience of fluoride application.(p > 0.05) 6. The snack intake factors related to the number of decayed tooth were tooth care foods intake frequency and decaying foods intake frequency(p > 0.05). 7. The oral health belief item related to the number of decayed tooth was susceptibility(p > 0.05). 8. According to the results of regression analysis, the less mother was employed, the more the average daily tooth brushing frequency was, the more the tooth care foods intake frequency was, the less the decaying foods intake frequency was, and the higher susceptibility was, the lower the number of decayed tooth. 9. In order to prevent and cure early the dental caries which occur frequently in elementary school students, the establishment of oral health centers within schools should be expanded to promote tooth brushing instruction, fluoride solution rinsing, diet control, periodic oral examination.

• Journal of Digital Convergence
• /
• v.11 no.12
• /
• pp.607-614
• /
• 2013

This study has been conducted to investigate the effect of self awareness of halitosis on the quality of life related to oral health in patients with chronic renal failure undergoing hemodialysis and use basic data related to oral health of patients with chronic renal failure which is very rare in Korea. In terms of oral symptoms based on awareness of halitosis, there were significant differences in symptoms of teeth pain in the past one month, bleeding gums, symptoms of tongue or cheek pain, dry mouth, In terms of status of oral functions, there were significant differences in discomfort upon chewing foods, difficulty of pronunciation and presence of lost teeth. As the results of analysis of effect of self awareness of halitosis on the quality of life related to oral health in patients with chronic renal failure, it was shown that there were significant effects in psychological discomfort(B=-2.028, p<.01), poor social skills(B=2.596, p<.01) and social disadvantage(B=-2.173, p<.01). Thus, because self awareness of halitosis gives psychologically and socially negative effects, it could be an important factor to patients with renal failure whose number is rapidly increasing.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.12 no.12
• /
• pp.5692-5699
• /
• 2011

This study aims to determine potential differences in self-perceived oral health levels between blue-collar and white-collar workers. It is based upon questionnaire survey data dating from Mar. 1 to 30, 2011. All the data collected from 200 blue-collar workers and 100 white-collar worker was analyzed using statistical tools like SPSS ver. 19.0. Self-perceived oral health levels were analysed across three sub-factors - physical, psycho-social, and psychological factors - which were confirmed through factor analysis. The psycho-social factor was statistically significant for age and shift work. Self-perceived oral health levels across the three factors were quantitatively correlated except for psychological factors in blue-collar workers. The study found that occupational group affects workers' self-perceived oral health level. The explanatory power of these 4 variables total 51% in blue-collar group. In case of white-collar group, it was found one variable total 30%. Since oral health levels differ between blue-collar and white-collar workers, oral health promotion projects should differentiate between the two groups, and workers with an interest in their tooth for the prevention, yet negligent act because it will keep your personal oral health care in the prevention-oriented oral health promotion.

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

• Proceedings of the Korean Operations and Management Science Society Conference
• /
• 1997.10a
• /
• pp.37-40
• /
• 1997

RP(Rapid Prototyping) 기술은 점점 그 활용범위를 넓혀가는 추세이며, 의료분야에서도 임플란트의 제작등에 RP 기술의 도입이 시도되고 있다. 뼈나 치아 등의 인체부속물들은 속성상 직접 그 형태를 파악하기가 힘들고, 따라서 그 대체물인 임플란트의 제작을 위해 MRI나 CT등의 장비가 사용되고 있다. 의료분야에까지 이르는 RP의 활발한 활용에도 불구하고, 아직 국내에서는 RP에 대한 인식이 부족하고 그 활용에 대한 연구가 거의 없는 상황이다. 본 논문은 MRI, CT등의 2차원 평면데이터로부터 직접 RP 기계의 표준입력화일인 STL 파일을 생성시키기 위한 방법을 제시한다. 그리고 MRI로 스캐닝된 사람의 머리뼈 형상을 삼각메쉬 형태의 STL 파일로 변화하여 RP 기계를 통한 실물 모형 제작이 가능하도록 한 예를 설명하였다.

• Journal of Technologic Dentistry
• /
• v.18 no.1
• /
• pp.27-37
• /
• 1996

This study was carried out to investigate and analyze the congnitive degree of dental subjects and general pubic who have an experience to be treated for their teeth on the dental knowledge, operative dentistry, and dental prothesis in the oral health care through the questionnaires. The results are as follows: 1. In the knowledge on the care of dental prothetic stuff, there isn't any significant difference, but the degree of therapeutic knowledge was significantly high as showing 71.6% in I can prevent a gingivits;(P<0.01) Therefore, they have well known an importance of prevention. 2. In the knowledge on the orthodontics, it was appeared to cure their teeth due to an esthetic reason(47.9%). There is not any significance in the Statisics, but it appeared the relatively high knowledge in the time and period of orthodontics(P<0.01) 3. In the congnition on the necessity of dental prothesis, it appeared relatively high, but 'Be necessary' didn't show the significance as 77.2%. The proferance to dental prothesis material showed the similar difference of porcelain(45.6%) and gold(43.7%), and the moderns tend to ptefer porcelain teeth similar to the color of matural teeth in the modern, getting out of the existing cognition of preferring the gold. Accordingly it is considered to be preferentialy necessary the motivae the general public for the oral thealth education on the dental knowledge, operative dentistry, and dental prothesis the knowledge and practice of general public have an important effect upon the oral health as the abovementioned results.

• Journal of Korean Dental Hygiene Science
• /
• v.6 no.2
• /
• pp.101-114
• /
• 2023

Background: This study aimed to explore the overall perception of pit and fissure sealants and suggest methods to revitalize their current stagnation. Methods: To determine the social perception of the change in coverage policy for pit and fissure sealants, we categorized them into five time periods. The first period (December 1, 2009 to November 30, 2010), the second period (December 1, 2010 to September 30, 2012), the third period (October 1, 2012 to May 5, 2013), the fourth period (May 6, 2013 to September 30, 2017), and the fifth period (October 1, 2017 to December 31, 2022). We utilized text mining, an unstructured big data analysis method. Keywords were collected and analyzed using Textom, and the frequency analysis of the top 30 keywords, structural features of the semantic network, centrality analysis, QAP correlation analysis, and co-occurrence analysis were conducted. Results: The frequency analysis showed that the top keywords for each time period were 'Cavities', 'Treatment', and 'Children'. In the structural features of the semantic network of pit and fissure sealants by time period, the density index was found to be around 1.00 for all time periods. The QAP correlation analysis showed the highest correlation between the first and second periods and the fourth and fifth periods with a correlation coefficient of 0.834. The co-occurrence analysis showed that 'cavities' and 'prevention were the top two words across all time periods. Conclusion: This study showed that pit and fissure sealants are well accepted by the society as a preventive treatment for caries. However, the awareness of health education related to these sealants was found to be low. Efforts to revitalize stagnant pit and fissure sealants need to be strengthened with effective education.

• The Journal of the Korean dental association
• /
• v.23 no.1 s.188
• /
• pp.35-40
• /
• 1985

수술과 교정의 혼합술식으로 안면부의 기형과 부수적으로 발생하는 부정교합을 치료하는 경향이 점차적으로 증가하고 있다. 수술-교정 술식은 과거 20년동안, 특히 1970년대에 무척 빠른 속도로 발전하였다. 수술-교정 술식이 발달함에 따라 이전에는 수술이나 교정치료 단독으로는 치료하기가 어려웠던 case들의 치료가 가능하게 되었다. 교정의사들은 성장이 완료된 성인의 심한 skeletal dysplasia를 치아이동에 의해서만 치료하는 데에는 매우 제한이 많다는 것을 인식하게 되었으며, 반면에 구강외과 의사들은 수술전후의 교정치료에 의해 더욱 좋은 수술 결과를 얻을 수 있는 동시에 좋은 functional occlusion을 이룰수 있다는 사실을 인식하였다. 이러한 수술-교정 술식은 교정의사들과 구강외과의사들에게 새로운 면들을 요구하고 있다. 좋은 치료결과를 얻기 위해서는 교정의사와 구강외과의사간의 긴밀한 협조관계가 필수적이다. 이러한 협조관계를 유지하기 위하여는 서로 상대 전문분야의 용어, 진단원리, 치료기법 등에 대한 이해가 선행되어야 한다. 이 논문에서는 진단, 치료계획, 수술전 교정치료, 수술술식, 수술후 교정치료, 증례보고의 순서로 기술하려 한다.