• Journal of Periodontal and Implant Science
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• 제48권4호
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• pp.236-250
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• 2018

Purpose: Resorption of the alveolar bone is an unavoidable consequence of tooth extraction when appropriate alveolar ridge preservation (ARP) measures are not taken. The objective of this trial was to test the hypothesis that dimensional changes in the alveolar bone after tooth extraction would be reduced by inserting an equine collagen membrane and a collagen cone to fill and seal the alveolus (as ARP), in comparison to extraction with untreated alveoli. Methods: In this randomized clinical trial, 31 patients were directly treated with the collagen material after extraction of a tooth from the maxilla (the ARP group). Twenty-nine patients served as the control group. After extraction, no further treatment (i.e., no socket preservation measures) was performed in the control group. Changes in the alveolar process immediately after extraction and after an 8 (${\pm}1$)-week healing period were evaluated 3-dimensionally. Blinded analyses were performed after superimposing the data from the digitalized impressions and surfaces generated by cone-beam computed tomography. Results: Both the ARP and control groups showed a reduction of bone in the alveolar area after tooth extraction. However, significantly less bone resorption was detected in the clinically relevant buccal region in the ARP group. The median bone reduction was 1.18 mm in the ARP group and 5.06 mm in the control group (P=0.03). Conclusions: The proposed hypothesis that inserting a combination material comprising a collagen cone and membrane would lead to a difference in alveolar bone preservation can be accepted for the clinically relevant buccal distance. In this area, implantation of the collagen material led to significantly less alveolar bone resorption. German Clinical Trials Register at www.drks.de, DRKS00004769.

• 한국콘텐츠학회논문지
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• 제21권5호
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• pp.561-580
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• 2021

쑤저우 평강로 역사문화거리를 분석 대상으로 도시역사거리의 발전과 보호에 대해 알아보았다. 다음과 같은 방식을 통해 도시역사거리에서 문화거리의 발전, 재생방법과 현황에 대해 전면적인 조사를 진행하였다. 우선 역사문화거리의 개념과 특성을 이해하고, 문헌조사를 통해 역사문화거리의 보존과 재생특성을 물리적 요소와 비물리적 요소로 정리했다. 또한, 한국의 인사동, 삼청동, 중국 베이징의 난뤄구샹, 항저우의 남송어가 등 4개 역사문화거리의 통합디자인교류시스템을 분석하고 연구했다. 기초 연구와 분석을 거쳐 비물리적 요소에서 문화성, 경제성, 사회성에 포함되는 평가 기준을 마련하고 물리적 요소를 공간 구조, 도로 맥락, 건물 보존으로 나누어 분석틀을 정리했다. 평강로에서 비물리적 요소와 물리적 요소의 복합적인 발전 관점을 제시하여 역사문화거리의 보존과 재생에 평가 모델을 제공할 수 있다는 점에서 의의가 있다. 또한 현장 조사를 결합해 방문객을 위한 프로그램 및 서명 시스템의 정비와 개발, 역사문화 네트워크 플랫폼의 지속적인 개발 등 방면의 미흡한 부분에 대해 최적화와 구체적인 연구를 진행할 필요가 있으며, 이를 통해 같은 유형의 다른 역사문화거리에 참고할 만한 기초 자료를 제공하여야 한다.

• 한국조경학회지
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• 제26권4호
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• pp.25-35
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• 1999

This thesis is to newly understand the value and the meaning of Chonju Palkyong(全州八景) by the specific gravity in making a counter-proposal in other to improve the landscape identity of modern city and at the same time. I intended to group the grafting device for the preservation and regeneration of modern history cultural environment through the interpretation of landscape construction. The meaning system of Chonju Palkyong showed the symbolic system which a landscape construction, four directions and two places has and exhibited the landscape shape possessing a luxuriant local feature peculiar to Chonju, preserving visual bound language of a classical Palkyong. Especially, it implies the use of the substantial landscape experienced factor, the expressions about natural phenomena and the matter which has melted human living circumstances. The landscape construction and it's form show the system which forms the different time field, a far landscape and a mid distance landscape and a near landscape, etc., under the visual, psychological, scenic influenced area, preserving the feature of the similar and typical type of Sosang Palkyoung（瀟湘八景) which intended to seek the local reappearance of the famous site experienced type and natural matter which famous place and local conduct were combined. The object space of Chonju Palkyong area representing the nature of historical landscape cultural assets, pushed by the greater part of the development based theory, shows injured aspects, but needs to play a part to seek such a up-to-date successive plan as the reconstruction of the destroyed historical landscape area which motivated Palkyong, the establishment of useful area, the embodiment of the cultural identity of Palkyong area and the becoming of the educational cultural life space. The analysis of the landscape construction of Chonju Palkyong and the grouping of the modern successive plan which I considered in this thesis, will be able to become a fundamental data to carry out the preservation of historical landscape and the landscape plan in the city.