• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2003.05b
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• pp.86-89
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• 2003

본 고에서는 현재 중국에서 추진되고 잇는 과학기술진흥시책을 과기공관계획(科技攻關計劃)을 중심으로 조망해 보고, 특히 863 계획과 973 계획에 대한 총제적인 내용을 소개한다. 863 계획은, 7차경제개발5개년계획 기간(75기간)부터 시작된, 고급기술 연구개발에 대한 집중적인 진흥 정책이며, 973 계획은, 9차경제개발5개년계획 기간(95기간) 중에 시작된, 기초연구분야에 대한 집중적인 진흥시책이다. 중국의 경우 이와 같은 국가 주도적인 진흥책은 중국공산당중앙위원회(중공중앙(中共中央))와 국무원의 방침 결정에 따라 집중육성(중점(重点))의 항목 결정 및 관리를 유관부문이 상호 협조하에 분담하여 지원하고 있다.

• The Science & Technology
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• no.5 s.444
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• pp.111-115
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• 2006

국립과학관 기공식 가져/ 과기인 500명, 계룡산서 '과학기술인 한마음 등산대회' 열어/ 외국인 고급 과학기술인력 국내 체류 절차 간소화/ 「세계 3대 과학저널이 주목한 한국인 과학자 53인」발간/ 국가연구개발사업 성과 종합관리체계 만든다/ 범부처 '줄기세포연구 종합추진계획' 연구 중간발표/ '국가생물자원정보관리센터' 개소식/ '차세대 자기공명장치' 가동/ 지재권 연구 전담할 'R&D 특허센터' 문 열어/ '핵융합연구센터' 현판식/ 'KIST 강릉분원' 준공식/ '2006년도 신규 국가지정연구실 선정 발표

• The Journal of Korean Academy of Prosthodontics
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• v.47 no.2
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• pp.99-107
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• 2009

Statement of problem: Restoring and replacing teeth with fixed prostheses commonly used in dental practice. Because of improper oral hygiene care and inaccurate laboratory procedure, complications of fixed prostheses were found in the mouth of patients. Although many efforts have been continually made to obtain the data of long term prognosis of fixed prostheses, it was difficult to do it. Purpose: The purpose of this study was to evaluate the clinical status of fixed prostheses. Material and methods: In order to assess the clinical status of fixed prostheses, a total of 161 individuals(aged 17-85, 99 women and 62 men with 1596 unit of fixed prostheses, and 1169 abutments) who first visited the Department of Prosthodontics, Pusan National University Hospital, between April to September, in 2007 were examined. Results and conclusion: The results of this study were as follows: 1. Length of service of fixed prostheses was $8.6{\pm}0.6$ years(mean), 10.0 years(median). 2. Location of fixed prostheses was found to have no statistically significant influence on longevity of fixed prostheses(P>.05). But, the success rate was high in posterior region and in mandible where the failure rate was high in combination(P<.05). 3. Longevity of fixed prostheses made of metal was longest(mean: $13.0{\pm}9.3$, median: 14.0), gold, precious ceramic, non-precious ceramic trailing behind(P<.05). 4. Number of units in fixed prostheses was found to have no statistically significant influence on longevity of fixed prostheses(P>.05). But, the success rate was high in Single-unit and the failure rate was high in over 3-unit(P<.05). 5. Condition of opposing dentition was found to have no statistically significant influence on longevity of fixed prostheses(P>.05). But, the success rate was high in natural dentition(P<.05). 6. Defective margin(28.2%), dental caries(23.0%), periodontal disease(19.3%), periapical disease(16.9%) were frequent complications. In 30.1% of the cases, abutment state after removing fixed prostheses was needed to be extracted.