• 한국산학기술학회논문지
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• 제15권4호
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• pp.2150-2159
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• 2014

본 연구는 서울 경기지역의 치과에 내원한 389명의 환자를 대상으로 교정치료 및 안면성형 수술에 대한 실태를 조사하고자 하였다. 자료수집 후 spss 통계프로그램을 이용하여 분석하였다. 교정치료경험이 있는 환자의 치열만족도가 높게 나타났고(p<0.01), 여자가 남자보다 301-400만원이 적당한 교정치료 비용이라고 높게 인식하고 있었으며(p<0.05) 교정치료 경험이 있는 환자가 19-24개월 이하를 적절한 교정치료 기간으로 인식하고 있었다(p<0.01). 또한 여자가 남자보다 교정치료 검진 필요성(p<0.001), 안면성형수술 경험(p<0.01)이 높게 나타났다. 안면성형수술 희망부위에서는 여자가 눈 수술이(p<0.01), 교정치료 경험이 있는 환자에서는 코 수술이 높게 나타났다(p<0.05). 한편, 여자가 안면 부위 중 눈을 가장 중요하게 인식하고 있었으며(p<0.001), 안면성형 부위 중 양악을 치과에서 해야 한다고 높게 인식하고 있었다(p<0.01). 결론적으로 임상에서 교정치료 및 안면성형을 희망하는 환자 상담 시 성별 및 개인의 요구를 파악하여 진료에 반영하고 특히 안면성형 중 양악수술은 구강의 기능을 고려해야 하므로 치과의료진의 참여가 필수적이라 사료된다.

• 대한치과교정학회지
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• 제33권5호
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• pp.381-389
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• 2003

본 연구는 치아우식증에 관련된 Hutans streptococci 표준균주 및 임상분리 균주의 성장억제를 유도할 수 있는 천연생약추출물을 검색하기 위하여 실시되었다. 녹차추출물은 CHMC-2032를 사용하였으며, 결명자 추출물은 $50\%$ 에탄올을 이용하여얻었다. 이들 추출물의 Mutans streptococci표준균주 및 교정환자들에서 브라켓과 치면 사이의 경계부에서 분리된 각각 10 균주씩의 S. mutans 및 S. sobrinus에 대한 최소성장억제농도를 액체배지 희석법으로 구하였다. 그 결과 CHMC-2032의 S. mutans 및 S. sobrinus의 표준 균주, S. sobrinus의 대부분 임상분리 균주에 대한 최소성장 억제농도는 5mg/ml이었다 그러나 결명자 추출물에 의한 S. mutans 및 S. sobrinus에 대한 세균 성장억제 효과는 미미하였다. 본 연구 결과 치아우식증의 예방적 측면에서 결명자차보다는 녹차를 마시는 것이 유리하며, CHMC-2032를 이용하여 구강양치용액을 제조하여 사용할 경우 교정환자를 포함하여 대부분의 사람에게서 치아우식증 예방 효과가 있으리고 추정된다.

• 치위생과학회지
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• 제19권2호
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• pp.96-106
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• 2019

Background: Factors affecting oral function include tooth number, oral muscle strength, and oral diseases. This study aimed to investigate the relationship among oral environment, muscle, and microbiology. Methods: Fifty-six elderly individuals in a day care center were included in the study. The survey regarding tongue and lip muscle strength and oral microorganisms was conducted from November to December 2018. Results: Tongue and lip muscle strength were greater in men than women (p>0.05). Tongue muscle strength was greater in the ${\leq}80-year-old$ group ($34.94{\pm}9.85$) than the ${\geq}90-year-old$ group ($25.57{\pm}7.54$) (p<0.05). Tongue muscle strength and lip muscle strength were greater in the ${\geq}15$ functional teeth group ($34.08{\pm}9.31$ and $9.25{\pm}1.63$, respectively) than in the <15 functional teeth group ($28.08{\pm}7.53$ and $7.76{\pm}1.51$, respectively) (p<0.05). Age was significantly correlated with functional tooth number, denture use, and tongue muscle strength. The number of functional teeth was positively correlated with tongue muscle strength, lip muscle strength, and oral microorganisms. Denture use was negatively correlated with tongue and lip muscle strength. Tongue muscle strength was significantly correlated with lip muscle strength. The number of Eubacterium nodatum was higher in men than women. The number of Parvimonas micra and Enterococcus faecalis was higher in the groups with ${\geq}15$ functional teeth, denture use, and greater tongue and lip muscle strength. The number of Lactobacillus casei was higher in the group that uses dentures and with greater tongue strength. Conclusion: Oral microbiology is more important in oral environment and management than oral muscle function. The correlation between oral muscle and oral microorganism requires further study. Therefore, oral care training should be conducted to improve the oral care practice of elderly individuals, maintain oral health through oral care, and prevent the decrease in saliva secretion by aging.

• Journal of Electrochemical Science and Technology
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• 제8권4호
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• pp.294-306
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• 2017

Stainless steels and titanium alloys are widely used in the medical industry as replacement materials. These materials may be affected by the conditions and type of environment. In the same manner, soft drinks are widely consumed products. It is of interest for dental industry to know the behavior of medical-grade alloys when these are in contact with soft drinks, since any excessive ion release can suppose a risk for human health. In the present study, the electrochemical behavior of three stainless steel alloys and pure titanium was analyzed using three types of cola soft drinks as electrolyte. The objective of this study was to evaluate the response of these metallic materials in each type of solution (cola standard, light and zero). Different electrochemical techniques were used for the evaluation of the alloys, namely potentiodynamic polarization, linear polarization, and open-circuit potential measurements. The corrosion resistance of the stainless-steel alloys and titanium in the cola soft drinks was provided by the formation of a stable passive film formed by metal oxides. Scanning electron microscopy was used as a complementary technique to reveal corrosion phenomena at the surface of the materials evaluated.

• 대한치과기공학회지
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• 제27권1호
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• pp.131-153
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• 2005

The purpose of this study was to identify the accidents happened in the college dental laboratory technique classes and to realize the level of safety education for the dental laboratory technique major students. The research data were collected from a self-administered survey distributed to the conveniently selected college students whose majors were dental laboratory technology in Suwon, Daejeon, Daegu, Kimcheon, and Icsan. The study participants were 422 freshmen, sophomore and junior students in the selected cities. All collected survey responses were encoded and analyzed in SPSS 12.0. The findings were as follows. 1. The students who had any accidents in their laboratory classes were 36% and the other 64% answered 'no.' 2. Most injuries which the participants had were not significant. 3. The medical treatment periods of most injury cases were less than one week; however, approximately 20% of the self-reported injury cases reported that their treatment periods were longer than one week. 4. The body parts frequently injured from accidents were hands with 84.7% and arms, eyes, face, head, and legs in order. 5. Concerning the materials involved in the laboratory classes, most accidents happened when working with wax in 59.9%, with plaster in 52.3%, with wire in 39.8%, with alcohol in 34.6%, and casting iron in 22.2% in order. 6. The accident-prone laboratory methods were polishing with 53.5%, pickling or sanding with 17.4%, and casting or burning with 5.8% in order. 7. Most students wore their laboratory gowns well; however, few students wore mask before dust-involved jobs. Furthermore, only 57.1% students answered their laboratory fans worked during the polishing job. 8. Approximately 54% participant students answered that they took laboratory safety education when necessary only from the class instructors. 9. The 76.1% students responded that they needed laboratory safety education at least 1-2 times every semester. 10. The survey participants answered that the primary factors for injury prevention in their laboratory were taking safety education, wearing safety equipments, and providing safety-focused facilities. Concludingly, comprehensive evaluation and monitoring for potential risk factors from both the human side and the environment side should be continually provided to minimize the college laboratory accidents.

• 한국컴퓨터정보학회논문지
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• 제23권11호
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• pp.143-149
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• 2018

The purpose of this study is to propose a management method to maintain the pleasant indoor air quality of the dental clinic by measuring and analyzing the indoor air quality of the dental clinic. The measurement was conducted in two rooms, a lobby where many residents stay in the reception room for waiting for medical treatment, and a VIP room where treatment activities are mainly performed. Measurement items are Temperature, Humidity, $CO_2$, CO, $NO_2$, $CH_2O$, VOC, $PM_{10}$ and measurement were taken on April 27, 2018. As a result of analyzing the temperature and humidity of the dental clinic, it was analyzed that the average indoor temperature was maintained at $25^{\circ}C$ and the humidity was kept at around 50%, maintaining proper indoor temperature and humidity environment. $CO_2$ was 855ppm in the VIP Room, which satisfied the maintenance standard. In the case of the lobby, it was analyzed to be 1,160ppm, which exceeded the maintenance standard and it is judged that the carbon dioxide generated by the respiration of the people staying in the lobby is the main reason. The mean concentration of formaldehyde in the VIP room was analyzed as $436{\mu}g/m^3$, exceeding the maintenance standard, and $2,100{\mu}g/m^3$ for the VOC exceeded the recommended standard. It was analyzed that the concentration was relatively higher due to the use of disinfectant and other drugs. The mean concentration of PM-10 in the lobby was analyzed as $65{\mu}g/m^3$ and it was analyzed that it satisfied the maintenance standard. To maintain a pleasant indoor air quality in a dental clinic it is necessary to minimize the effects of formaldehyde, VOC, $CO_2$ in the VIP rooms and lobby. For this purpose, the entire ventilation system and air purification system of the dental clinic should be installed. In case of the VIP room, local exhaust ventilation should be installed and workers should wear personal protective equipment.

• 대한치과의사협회지
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• 제48권11호
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• pp.813-818
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• 2010

Since MTA has many beneficial properties such as biocompatibility, great sealing capacity, antibacterial effects, low cytotoxicity, and stimulation of formation of mineralized tissue, it has been widely used as the material of choice in root-end filling, apexification, pulpotomy, perforation repair and so on. However, despite its favorable characteristics, MTA presents working properties which are less than ideal. The resulting cement from the mixing of powder and water is difficult to manipulate, and its setting time has been reported to be 2 h 45 min whereas the working time is <4 minutes. Additional moisture is also required to activate the setting of the cement. Moreover, according to recent studies, the physical properties of MT A may be hampered by acidic environment or blood contamination. Therefore, practitioners may have surprisingly worse results than they expected when they are not fully acquainted with the characteristics and manipulation method of MTA.

• 한국치위생학회지
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• 제10권6호
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• pp.1001-1014
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• 2010

Objectives : The purpose of this study is about discovering the basic references to find the ways to vitalize handicapped dental clinics. Methods : The study was analyzed by the satisfactions of those patients who took the advantages of using the dental care at B-welfare center and also their transformed perceptions after the services are influenced. The analysis was the questionnaire consisting of 100 items and survey data. Results : 1. The satisfaction of the dental service for the disabled was respectively high which was the average of 4.49. 2. Their satisfactions of receiving kindness services by volunteers and employees were the highest in the entire research of successful handicapped dental services and it was 4.78 overall. 3. The satisfaction of using handicapped dental clinic has the higher range of female users than male's. In the mean time treatment details of the dental care and the satisfaction towards to the volunteers and faculty at the center show the statistical significance gap. 4. The oral care service after experiencing the dental clinic for handicapped relived their discomforts of using the regular dental clinic which shows their highest satisfaction as it is the point of 4.75. 5. the change perception after dental treatment for handicapped has the higher range of females than men's and solving the problems of mouth reference and discomfort of using regular clinics show the statistical significance gap. 6. In the change perception after having dental treatment for handicapped the thought of the possibility of periodical dental care shows the highest perception when the number of visiting is usually shorter and it shows the statistical significance. Conclusions : According to the satisfaction of those inpatients who use free dental care services that belong to dental clinics for handicapped in a part of Seoul welfare centers human services were appeared as the most important factor due to their advantages of taking services from volunteers and staff members. On the other hand to enhance the medical treatment information and environment which showed the weakest factors each inpatient should be specifically specialized for their needs and also further study on plans which enhance their perceptions toward to a better quality of oral-related life is required after using dental treatment service.

• 한국콘텐츠학회논문지
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• 제19권2호
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• pp.409-423
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• 2019

치과보조인력 정책의 현황을 확인하기 위하여 치과보조인력 공급 현황, 지역별 분포, 법적 업무, 근무환경 등의 측면에서 관련 선행문헌고찰 및 자료수집 및 분석을 실시하고, 관련요인을 고찰함으로써 우리나라 정책의 문제점을 도출하고자 하였다. 치과위생사 수의 급격한 양적 증가가 있었음에도 불구하고, 활동 수는 전체의 절반에도 미치지 못하고, 치과계는 여전히 치과위생사 인력난을 경험하고 있다. 치과위생사의 수행업무를 고려했을 때 치과진료보조 업무 수행을 위한 전문적 치과보조인력의 활용이 제한적이다. 또한, 대도시를 중심으로 치과위생사 분포가 편중되고, 치과위생사로만 구성된 치과의료기관 비율이 높기 때문에 지역별 치과보조인력 분포의 불균형을 해결하기 위한 방안 마련이 필요하다. 수행 업무 중 많은 비중이 의료기사법에 구체적으로 명시된 사항이 아니므로 해당행위의 적법성을 판단하는 기준이 모호하다. 치과위생사의 직업수명, 업무 효율성, 직업전문성 및 만족도가 감소함에 따라 직무소진이 빠르게 나타나고 있다. 치과위생사의 법적 업무와 실제 수행하는 업무와의 괴리, 직역 간 갈등의 심화는 정부 차원에서의 치과의료인력의 활용 계획과 방안이 부재하기 때문인 것으로 검토된다. 이에 대해 정부에서는 치과의료서비스 수요에 따라 치과위생사 인력의 역할을 정립하고, 필요 정책을 제도화하며, 인력을 적절하게 활용하기 위한 계획을 수립하기 위한 노력을 해야 한다.

• 대한치위생과학회지
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• 제3권2호
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• pp.51-58
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• 2020

Oral examination ensures early detection and treatment of oral diseases and improvement of quality of health-related life. This is imperative as it reduces individuals' dental medical expenses and social costs caused by diseases. However, as the low oral examination acceptance rate continues to be a problem, this study was conducted to identify the factors that influence the oral examination of an economically active population. In this study, 4,836 economically active individuals between the ages of 20 and 65 years were studied using data from the 7th National Health and Nutrition Survey in 2018. Logistic regression analysis was performed to determine the factors influencing demographic and sociological characteristics on oral examination after adjusting for complaints of mastication and speech discomfort. As a result of confirming the factors influencing the oral examination, increase in age tended to be inversely proportional to the oral examination. Income level, type of job, and job position were identified as factors that influenced oral examinations. Compared to the group with a high socioeconomic status, which is represented by a group with a high income level or a stable job type or job position, the group with low economic status was found to have a negative effect on oral examination. Oral management of vulnerable groups, who might not be considered while devising oral health management policies, should be promoted through the development and provision of oral health management policies that consider employment status and environment.