• 한국치위생학회지
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• 제7권2호
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• pp.153-166
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• 2007

The job of dental hygienists is specialized, and they have to be capable of performing their primary duties including prevention of oral diseases, oral prophylaxis, and oral health education. To ensure their successful job performance, dentists should have an accurate understanding of their duties and need a change of mind-set about them. And there should be written legal and concrete regulations on the coverage of their work in order to let them boost their job performance with pride and a sense of responsibility. The purpose of this study was to examine the actual roles and job performance of dental hygienists in clinical field in an attempt to discuss the substantial job performance of dental hygienists and their job enlargement. It's basically meant to help enhance the efficiency and quality of medical services. The subjects in this study were 471 dental hygienists in dental clinics, dental hospitals, university hospitals and general hospitals across the nation, on whom a survey was conducted in person from March 2 to 25, 2005. The collected data were analyzed with SPSS Win 12.0 program, and the findings of the study were as follows: 1. The major jobs they currently performed included oral health education, hospital management, simple duties, extensive dental hygiene duties and joint treatment assistance. They hoped to continue to be responsible for oral health education, preventive treatment and extensive dental hygiene duties. 2. As for their current job by age, extensive dental hygiene duties, preventive treatment, joint treatment assistance, preserving treatment, prosthetic treatment and pediatric treatment were most conducted by the dental hygienists who were at the age of 26 to less than 31, and those who were at the age of 31 and up were most responsible for hospital management and simple duties. 3. As to job awareness by workplace, their workload was statistically significantly different according to their workplace. The hospital employees took care of more work than those in clinics. 4. Concerning job awareness by age, the younger dental hygienists suffered more role conflicts and were given a less free hand in work handling, the middle-aged group's job was uncertain. Legal regulations about the coverage of their work should be prepared in detail as a measure to stir up their responsible job performance and pride. In order to take advantage of experienced dental hygienists, their duties should be more differentiated and specialized, and their working conditions should be improved to boost their job satisfaction. That is, they should be given ample chances for promotion and serving as a middle manager and be given fair treatment according to their career. If their work is accurately darified and specialized based on career, it will boost the efficiency of dental treatment. Dental hygienists also should direct sustained efforts into self-development in order to become a skilled and professional oral health personnel.

• Journal of Chest Surgery
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• 제9권1호
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• pp.10-19
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• 1976

One hundred and seventy-four patients were treated in this Department since 1956. One hundred and fifteen patients of them were surgically treated. They were classified on the basis of the disease entity as follows; 48 case of thrombo-angiitis obliterance, 8 cases of Leriche syndrome, 12 cases of arterial embolism, 36 arterial aneurysm, 5 arterio-venous fistula, 15 arterial and venous injuries, 8 pulseless diseases, 2 coarctation of aortas, 15 varicose veins, 12 thrombophlebitis, 9 superior venacaval syndromes, 2 inferior vena caval obstructions and Raynaud's diseases. All the cases of the Burger's diseases were males, and half of them were in the fourth decades, 39 cases underwent undergone unilateral or bilateral sympathectomies. All the Leriche syndromes were males aged over fifty. Three cases out of six were suffering from diabetes mellitus. 2 cases underwent aorto-femoral bypass graft with Y-shaped dacrons. And two embolectomies were performed in 2 cases. Eight cases of arterial embolisms among 12 had mitral valvular diseases with auricular fibrillation The most common site of lodgement of emboli was femoral artery. Nine out of 14 underwent embolectomies with Fogarty catheters. There were 14 peripheral arterial aneurysms, 16 thoracic and/or abdominal aortic aneurysms, and 4 dissecting aneurysms. Most frequent cause of peripheral arterial aneurysms were external trauma. Thoracic and abdominal aortic aneurysms were non-traumatic. And four cases of the dissecting aneurysms had significant hypertension and aged over fifty. Among 5 cases of arteriovenous fistulas, 2 cases hand typical Branham's sign, and they were normalized after operation. Eight cases of pulseless disease were females and aged from three to twenty-five. Three out of them were treated surgically using dacron prosthetic grafts, but the results of the surgery were variable and not satisfactory. A case of coarctation of aorta was treated surgically with an excellent result. Fourteen out of 15 varicose veins underwent ligation of the saphenous vein system, exstirpation of the varicose veins, stripping or some combination of these methods. Two cases of superior vena caval syndromes were operated by bypass graft between the left innominate vein and the right auricle. Two cases of inferior vena caval obstructions were operated upon through right atrial route using extracorporial circulation. All the four cases of vena caval obstructions showed excellent results postoperatively. Two cases out of 12 thrombophlebitis underwent thrombectomies. One of two Raynaud's diseases was surgically treated with an excellent result.

• Journal of Chest Surgery
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• 제42권2호
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• pp.165-174
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• 2009

배경: 심장 수술의 발전과 함께 자기 조직이 아닌 다른 인공 보철편의 필요가 늘어나 그에 따른 다양한 대체제가 연구 개발, 이용되고 있다. 본 연구는 더 나은 인공 조직보철편의 개발을 위해 이종이식 판막(돼지)과 심낭(돼지, 소)을 고정액에 따른 조직의 물리적 성질의 변화와 장력의 관계, 탄력도 변화, 열성 안정성을 알아보고자 하였다. 대상 및 방법: 이종이식 판막과 심낭을 처리하지 않은 그룹(fresh), glutaraldehyde (GA)로 고정한 그룹, glutaraldehyde (GA)에 ethanol 등과 같은 용매(solvent)를 첨가하여 고정한 그룹 세 그룹으로 나누어 검사하였다. 1) 각각의 군을 물리적 활성도 검사를 시행하였다. 2) 각 군별로 이종이식편의 일방향성 장력과 탄력도를 검사 비교하였다. 3) 소 심낭과 돼지 심낭을 각군 간에 열성 안정성 검사를 시행하였다. 결과: 1) 물리적 활성도 검사에서 촉진시 유의한 차이가 없었고, 봉합과, 신장도면에서 저농도 GA에 비해 GA+용매 처리군이 좀더 단단하게 느껴졌다. 2) 일반적으로 돼지의 대동맥, 폐동맥 판막의 원주방향 일방향성 장력과 탄력도는 아무것도 처리하지 않은 것보다 GA 혹은 GA+용매 처리 시 나아졌고, GA 혹은 GA+용매로 처리한 것 간에는 유의한 차이가 없었다(p>0.05). 소와 돼지의 심낭의 경우에도 GA 혹은 GA+용매로 처리한 것 간에는 유의한 차이가 없었다(p>0.05). 3) 각 실험과 군간에 GA 농도별로 비교 시 모든 군에서 그렇지는 않았지만, 고농도로 GA로 처리한 군(돼지의 폐동맥 판막, 돼지 심낭)에서 탄력도가 더 증가하는 경향이었다. 4) 소와 돼지 심낭 절편의 열 안정성 검사에서 GA 처리군과 GA+용매로 처리군간에 급격 수축 시점이 $80^{\circ}C$로 서로 차이가 없었다(소 심낭: p=0.057, 돼지 심낭: p=0.227). 결론: 이종 이식 보철편의 GA 고정 시 용매의 첨가는 압력-장력, 압력-탄력도, 열성 안정성 등 물리적 손실은 가져오지 않는 것으로 생각되며, 계속해서 더 나은 이식 보철 편 개발을 위한 여러 기능성 용매의 사용이나 세정 액의 연구개발이 필요하다.