• 대한치과기공학회지
• /
• 제38권3호
• /
• pp.157-163
• /
• 2016

Purpose: It is to compare and evaluate the change of the wear rate and phase variation of the Zirconia before and after the sintering after the grinding by a high speed equipment manufactured for the Zirconia. Methods: The specimen of the sintered Zirconia was manufactured as size of $15mm{\times}15mm{\times}2mm$. The grinding has been applied to each of all pieces of each test groups for a minute fit for each condition at same speed of 50,000 rpm by a diamond bur at high speed handpiece with injection of the air and water. For the observation of the surface before and after the sintering of the each test piece, the cross section of it was observed as 100 magnification by a scanning electron microscope after it was coated by PT, and the diffraction analysis was performed by XDR to compare the crystal phase of the Zirconia. The average surface roughness value of all specimens were evaluated. The wear test was performed at room temperature by applying a load of 1kg for 120,000 cycles for the chewing period 6 months. Wear was analyzed for the enamel cusps by measurement of the vertical substance loss with a laser scanner. Conclusion: The phase variation from the tetragonal phase to the monoclinic phase was confirmed in the test group of the pre-sintered Zirconia after the grinding, and the value of the surface roughness and the wear rate was increased in experimental group.

• 디지털콘텐츠학회 논문지
• /
• 제19권5호
• /
• pp.945-954
• /
• 2018

본 연구는 치위생과 학생들의 생활스트레스 수준과 생활스트레스 정도에 따라 식행동 변화에 어떠한 영향을 끼치는지를 분석하는데 목적이 있다. 서울과 대전지역 치위생과 각 1개교를 선정하여 재학 중인 387명의 학생들을 대상으로 이메일과 자기기입식 방법으로 설문조사 하였다. 생활스트레스 중 학업요인이 3.16점으로 가장 높았고, 진로요인 3.04점, 경제요인 2.97점 등이 뒤를 이었으며, 일반적 특성에 따라 체질량지수, 경제수준, 가족과의 대화시간 그리고 본인의 건강정도에 따라 통계적으로 유의한 결과가 나타났다. 본인 스트레스 자각 정도가 높은 군에서 올바르지 못한 식행동 결과를 보였으며, 스트레스 후 식행동의 변화에서는 매운맛 선호가 44.0% 가장 많았고, 평소보다 식사량 증가 47.7%,를 보였으며, 선호하는 음식은 매운 음식 42.5% 가장 많았다. 본 연구를 통해 치위생과 학생들의 생활스트레스 수준과 그에 따른 식행동 변화를 확인하였고, 연구 결과는 대학 생활 적응을 위한 교육과 상담에 도움이 될 것으로 기대한다.

• 치위생과학회지
• /
• 제14권3호
• /
• pp.417-423
• /
• 2014

이 연구는 국민건강영양조사를 이용하여 우리나라 만 65세 이상 노인을 대상으로 보철 상태에 따른 건강관련 삶의 질을 조사하여, 노인의 구강건강증진의 기초자료를 확보하고자 하였으며, 다음과 같은 결론을 얻었다. 전체 연구대상자의 HRQoL은 0.86이었으며, 성별에 따른 HRQoL은 남자에서 0.90에 비해 여성에서 0.82로 남자가 유의하게 높았으며, 월 평균 소득이 증가할수록, 학력수준이 높을수록, 상실치아 개수가 낮을수록 HRQoL이 유의하게 높았다. 연구대상자 중 고정성 가공의치와 총의치 필요한 대상자는 HRQoL이 유의하게 낮았으며, 부분의치와 총의치를 장착하지 않은 대상자에서 HRQoL이 유의하게 높았다. EQ-5D의 현재의 건강 상태 5개의 항목에서 운동능력 항목은 부분의치 장착군에서 비장착군에 비해 어려움에 대한 응답한 비율이 높았으며, 자기관리 항목에서 총의치장착군에서 어려움이 있다고 응답한 비율이 높았다. 불안/우울 항목에서 총의치 장착군이 비장착군에 비해 어려움이 있다고 응답한 비율이 높았다.

• 농촌의학ㆍ지역보건
• /
• 제16권1호
• /
• pp.3-9
• /
• 1991

In order to find out status of health care for community residents with special reference to organization and man power in a rural health subcenter, a study was carried out, through analyzing the data, operated by health subcenter during 1973~1990 in a rural area, Su Dong-Myun, Nam Yang Ju-Gun, Kyung Gi-Do, Korea. The following results were obtained : l) The Number of Population in Su Dong-Myun is decreasing and household is increasing chronologically. 2) In 1989, the characteristics of population composition rate in Su Dong-Myun were shown : the groups of Age, 65 and over was high rate(9.8%) and 0~4 was low rate(5.3%) decreasing chronologically. 3) Since 1972, services of Su Dong-Myun health subcenter have been carried in the 3 functions(medical treatment, health care management and clerical work) with supports of Ewha Woman's University through the participation of community residents organization. 4) The Number of Su Dong-Myun health subcenter personnel in 1990 was 5 persons(public health doctor l, public health dentist l, health worker l, dental technician l and assistant nurse l) and of these, health worker who must have the huge charge of health care management, has been worked at Myun-office as a public official, in condition, decreased from 3 in 1980 to 2 in 1981 and from 2 to 1 in 1985. 5) Health service Activities of Su Dong Myun health subcenter obtained good results in it's achievement during 1975-1985, but since 1986, it has been in condition of lower stepping. 6) Since 1977, annual medical utilization rate showed decreasing tendency such as 900 per l,000 population in 1977, 846 in 1979, 723 in 1981, 343 in 1973 and 34l in 1987. 7) A proposal : (l) Organization of health subcenter must be unified and systematized by government, so that health subcenter can carry out primary health care for community residents through responsibilities and authorities. (2) Teaching programs in educational process must be reorganized, according to periodical request. considering relative importance to primary health care in health care needs of community residents.

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

• 대한치과의사협회지
• /
• 제12권1호
• /
• pp.29-34
• /
• 1974

In order to appreciate the school dental services of the primary, middle, and high school and to get the basic data for the university dental service programs in Korea, the author had examined the oral health status of 1,300 freshmen in S University. Then, the followed results were obtained from the calculation and evaluation of DEMT index, DT index, MT index, FT index, DT rate, MT rate, FT rate, debris deposit rate, calculus deposit rate, periodontal disease rate, and abnormal jaw relation rate. 1. DMFT index in the freshmen was higher than that of the Korean youth in the same age. 2. It seems the above result to be appeared from the influence of the intake of the more carbohydrate foods in the freshmen. 3. In the freshmen, MT rate was lower, and FT rate higher than in the Korean youth in the same age. 4. The oral hygiene condition was good in 3.15% of the freshmen. 5. Calculus was not deposited in 8.69% of the freshmen. 6. In 9.69% of the freshmen, the periodontium was healthy. 7. In Korea, the school dental services in the primary, middle, and high schools must be improved. 8. There was the abnormal jaw relation in 12.92% of the freashmen.

• 대한치과기공학회지
• /
• 제43권4호
• /
• pp.202-209
• /
• 2021

By classifying temporary denture production for surgical guides, digital guide-based surgery, and final prosthesis production, the problems of each process were assessed in advance and the factors that could be improved were confirmed in this study. The manufacturing process of fusion dental prosthesis uses virtual programs and computed tomography images to manufacture devices using the latest technologies of computer-aided design/computer-aided manufacturing and three-dimensional printing, which enables implants to be placed in the desired location in advance. Moreover, implant placement is not dependent on the skill and condition of the dentist, and because it uses a computer system, it can always be performed at a constant and optimal position. This can reduce the remanufacturing rate compared with the general method, shorten the treatment period, and eliminate patient discomfort. Unlike the traditional method of using impression materials and plaster models, digital fusion dental prostheses would be evaluated as a technology for producing prosthesis through professional design technology and communication.

• 한국임상보건과학회지
• /
• 제6권2호
• /
• pp.1156-1170
• /
• 2018

Purpose. This study was conducted to analyze fatigue and subjective oral health status in the employees in educational institutions and provide basic data for the development of a program for the promotion of oral health. Methods. As for the subjects, this study conducted a survey with 468 educational personnel in elementary, middle, and high schools in the Daegu-Gyeongbuk area from March through June 2016 and utilized 407 copies finally. As for the items on the survey, this study conducted an investigation on their general characteristics, fatigue, and subjective oral health status(halitosis, xerostomia, temporomandibular disorder) with the self-administered method. With the data collected, this study conducted frequency analysis, t-test, ANOVA, and multiple regression analysis, using SPSS 20.0 statistical program, and the statistical significance level was .05. Results. As a result of this study, it turned out that by sex, fatigue was higher in women(4.59 points); by the place of work, those in 'elementary school' had higher fatigue(4.59 points); and by health condition and oral health status, most of them responded that they were 'not healthy'(4.81 and 4.84 points, respectively) and there was a statistically significant difference (p<.05). As for the correlation between fatigue and subjective oral health status, there were positive(+) impacts on halitosis(=.248, p<.001), xerostomia(=.097, p<.05), and temporomandibular disorder(=.148, p<.01), so it turned out that there was a correlation between fatigue and subjective oral health status. Conclusion. Based on the result of an analysis of the impacts of the fatigue level on subjective oral health status, it is judged that it would be necessary to continue to build up a program that can promote the oral health status of the educational personnel. In addition, it is necessary to conduct studies continuously for the development and application of a program for the change in lifestyle and behavior that can lower their fatigue.

• 치위생과학회지
• /
• 제5권2호
• /
• pp.45-49
• /
• 2005

본 연구는 구강보건의 전문적 지식과 관리능력을 습득한 치과위생사의 현재 자기구강건강 관리능력을 파악하여 치과위생사의 구강관리 능력을 평가하고 공중구강보건의 현장과 치과임상의 현장에서 그 시기에 알맞은 구강보건교육과 예방치과처치의 담당자로서 보다 효과적인 구강보건교육방법을 제시하기 위한 기초자료를 제공하고자 2002년 4월 1일부터 5월 15일까지 설문 조사한 결과 다음과 같은 결론을 얻었다. 1. 설문에 응답한 조사대상자의 연령은 20-24세가 52.7%, 25-29세가 38.5%였고 81.1%가 미혼이었다. 근무처는 치과의원이 55.6%, 치과병원이 34.3%를 차지했고 근무연수는 0-2년차가 38.5%, 3-5년차가 36.7%였으며 근무처에 종사하는 치과위생사 수는 4명 이상이 74.6%로 나타났다. 2. 구강위생 지식에서는 치면열구전색과 치면세마가 $3.82{\pm}.39$로 점수가 가장 높았고 그 다음이 잇솔질 교습으로 $3.70{\pm}.53$, 불소도포 $3.70{\pm}.48$, 구강보조용품 사용방법 $3.52{\pm}.63$ 순으로 나타났다. 3. 자기구강위생 관리실태에서는 치과위생사들의 현재 자신의 구강건강상태에 대한 주관적 평가에서 조사대상자의 과반수 이상이 '보통이다' 혹은 '건강하다'라고 지각했다. 잇솔질 횟수로는 전체적으로 3회가 62.1%로 가장 많았고 잇솔질 방법으로는 rolling법이 85.2%로 가장 많이 실시되고 있었다. 사용하는 칫솔의 종류로는 중간모 69.2%, 부드러운 모 28.4%순이었으며 잇솔질 시간으로는 49.7%가 3분이라고 가장 많이 응답하였다. 잇솔질 시기로는 점심식사 후가 27.8%, 아침식사 후가 23.8%로 가장 높게 나타났으며 사용하는 치약에 불소함유 유무는 '예'라고 응답한 수가 66.3%로 가장 높게 나타났고 '잘 모르겠다'가 19.5%, '아니오'라고 응답한 수가 14.2%순으로 나타났다. 사용하고 있는 구강보조용품으로는 구강양치액이 23.1%로 가장 많았다. 치실이나 치간칫솔 사용 여부는 78.1%가 사용한다고 응답하였고 1일 1-2회 사용이 42.4%였으며 1회 소요시간은 1분 미만이 53.8%로 나타났다. 본인의 구강건강관리 활동으로는 식사후 껌저작이 17.2%로 가장 많았고 정기적 치과방문이 8.3%, 금연이 5.3%순으로 나타났다. 결과적으로 치과위생사의 경우 교육기관에서 전문적인 이론 및 임상실습으로 일반인보다는 구강건강관리가 잘 이루어지고 있었으나 아직도 불소나 예방치료에 대한 지식과 관리 측면에서는 미흡한 부분이 있었다. 구강보건을 책임지는 전문가적 한사람으로서 일반인과 환자들에게 본보기가 될 수 있도록 스스로가 자신의 구강건강 상태를 향상시키기 위해 끊임없이 노력하는 자세가 필요하며 이러한 실천은 환자 개개인에게 적절한 구강건강행위의 변화 및 구강건강관리의 중요성과 필요성을 알 수 있게 동기를 유발시킬 수 있도록 구강보건교육에 반영되고 응용되어져야 된다고 사료된다.

• 한국치위생학회지
• /
• 제15권2호
• /
• pp.179-188
• /
• 2015

Objectives: The purpose of the study is to investigate the need for the preparation of old age of dental hygienists and happy life. Methods: This study is a descriptive study. A self-reported questionnaire in Likert 5 scale was completed by the dental hygienists in Korea through online report or written report from December, 2012 to June, 2013. Except incomplete answers, 200 data were analyzed. The questionnaire consisted of 10 questions of preparation for old age and awareness for old ages, 9 questions of physical preparation, and 9 questions of emotional preparation. Cronbach's alpha of old age preparation and awareness of old age was 0.634 in the study. Cronbach's alpha was 0.709 and 0.757 in physical preparation and emotional preparation, respectively. The final analyses of 200 copies were conducted using SPSS 11.5 software for Windows(SPSS Inc., Chicago, lllinois, USA). Results: Awareness toward preparation for old age of dental hygienists was 3.72 points, physical preparation was 2.94 points, and emotional preparation was 2.91 points. Awareness toward preparation for old age of dental hygienists showed the relationship between birth date, marital status, education level, and subjective health condition. Physical preparation was closely related to birth date, marital status, education level, and the workplace. Emotional preparation was closely related to birth date, marital status, education level, and the workplace. Conclusions: This study suggested that preparation for old age of dental hygienists was very important and the preparation must be connected with the social welfare policy.