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이정삼,Lee, Jung-Sam 대한심미치과학회 2015 Journal of the Korean Academy of Esthetic Dentistr Vol.24 No.1
임플란트가 치과 진료의 중요한 수단이 된 후 오랜 기간이 지나면서 자연치를 거의 완전한 형태로 재현할 수 있는 방법에 대한 많은 선학들의 연구와 임상이 진행되어왔다. 과거 임플란트는 교합면의 저작에 중점을 두었다면 최근의 임플란트는 보다 편하고 기능적이며 심미적인 수복을 요하게 되었다. 이런 요구를 충족하기 위해서는 보철적으로 교합면의 형태뿐만 아니라 축면의 형태 및 치간공극에 대한 배려, 치은 하방의 형태도 중요한 요소가 되었다. 수술적으로는 수술 시기 및 절개에 대한 세심한 고려, 골과 연조직에 대한 적절한 형성을 위해 많은 진보가 이루어졌다. 치과의사가 이러한 부분에 대한 정확한 지식과 최종 완성품에 대한 열정이 있을 때 보다 좋은 결과물을 얻을 수 있을 것이다. Since the implant became the important treatment modality in dentistry, the research and clinical effort to mimic natural tooth appearance have been pursued. While the rehabilitation of mastication and occlusal appearance was focused in the past, more esthetic and functional restoration was preferred recently. To fulfill this demand, the clinicians should consider the axial contour, papilla space, subgingival appearance, as well as the shape of occlusal surface. In the surgery part, there have been significant advances in the adequate formation of bone and soft tissue through the careful reflection on the surgery time and incision. When the dentist has good knowledge about this aspect and passion for the final product, he or she can acquire better results.
이정삼 ( Jung-sam Lee ),류정곤 ( Jeong-gon Ryu ),기해경 ( Hae-kyung Kee ) 한국수산경영학회 2017 수산경영론집 Vol.48 No.3
This study is aimed to analyze the change of chinese fishing vessels` entry into the East Sea off North Korea and suggest directions for countermeasures. Based on the real landing data in China, Chinese fishing vessels` squid catch volume and value in the East Sea off North Korea are estimated. Results show that at least 205 thousand tons of squid was caught by Chinese fishing vessels in 2014. If the catch amount is calculated by the unit price per kilogram at the same year in Korea, it would be 556.3 billion KRW. As the UN sanctions become stricter with the recent resolution 2371 passed, Chinese fishing vessels` entry may increase in the future to compensate decreased seafood supply from North Korea. Even though there are not many options left for Korea to decrease the impact of Chinese depletive fishing, the study suggests countermeasures such as strengthening cooperative crack down on the Chinese illegal fishing vessels in Korean waters; increasing cooperation with UN member countries to incorporate banning the trade of fishing rights in the next UN sanctions; establishing regional fisheries management organization and managing migratory species with China and Japan cooperatively in the long term.
이정삼 ( Jung Sam Lee ),남종오 ( Jong Oh Nam ) 한국수산경영학회 2015 수산경영론집 Vol.46 No.2
The study aims to identify the current status of aquaculture information in Korea and suggests policy directions for its integrated management. Firstly, the study focuses on the identification of the current status of aquaculture information by reviewing how aquaculture information is managed. Secondly, this study identifies problems such as lacks in necessary aquaculture information, inefficiency caused by dispersion and overlapping of information, absence of integrated management system and insufficient sharing of information. After identifying the current status of aquaculture information and its problems, the study suggests three basic directions to systematically integrate and manage the information such as establishment of infrastructure for promoting the integrated management of aquaculture information, generation and systematic management of useful aquaculture information and enhancement of user convenience. Finally, the study suggests detailed strategies such as establishment of a foundation to facilitate integrated management of aquaculture information, organization of organic network, sharing of more information, creation of necessary information through demand survey, creation of systematic management system, provision of a customized total service, and increase in education and PR activities on information use.
색소성 융기성 피부섬유육종(Pigmented Dermatofibrosarcoma protuberans)의 치험례
이정삼(Jeong Sam Lee),김건중(Kean Jung Kim),정종철(Jong Cheol Jeong),민홍기(Heung Ki Min),최재선(Jae Sun Choi),박홈례(Heum Rye Park),박성혜(Sung Hye Park),하승연(Seung Yon Ha) 대한구강악안면외과학회 1997 대한구강악안면외과학회지 Vol.23 No.1
Bednar tumor was described by Bednar in 1957. The histologic pattern of this tumor shows similar to dermatofibrosarcoma protuberans (DFSP) but melanin pigments are scattered within the tumor, It s rare neoplasm accounting for approximately 1-5% of all case of DFSP. Clinically, this tumor is considered to be intermediated malignancy, because of slow growth and frequent local recurrence and lack of distant metastasis. The majority are located on the trunk and the upper and lower extremities, but extremely rate in the head and neck area. Microscopically, this tumor is characterized by tight storiform spindle cells and long slender cells that admixed with a small population of melanin containing dendritic cells. This dendritic cells are the primary features distinguising this lesion from conventional DFSP. Complete surgical excision and close follow-up case are necessany for this neoplasm because of probable intermediate malignancy. A patient was admitted to Our Department of Oral and Maxillofacial Surgery due to swelling on right parotid area and numbness of the right lower lip on September, 1994, By clinical examinations and C-T finding, we dignosed tentatively as myxoma or pleomorphic adenoma. Surgical excision of this tumor was performed with parotidectomy and mandibular osteotomy under the frozen biopsy. By final microscopic and electromicroscopic examination and immunohistochemical study, this tumor was diagnosed as Bednar tumor. So, we report a case of pigmented DFSP with review of literatures.