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이성조,강대영,조인우,신현승,신승일,Kai R. Fischer,박정철 대한치주과학회 2020 Journal of Periodontal & Implant Science Vol.50 No.3
Purpose: The aim of this study was to determine the impact of different compressive forces on deproteinized bovine bone mineral (DBBM) particles covered by native bilayer collagen membrane (NBCM) during alveolar ridge preservation (ARP) in the molar area, and to identify any histomorphometric and clinical differences according to the compressive force applied. Methods: Sockets were filled with DBBM after tooth extraction, and different compressive forces (30 N and 5 N, respectively) were applied to the graft material in the test (30 N) and control (5 N) groups. The DBBM in both groups was covered with NBCM in a double-layered fashion. A crossed horizontal mattress suture (hidden X) was then made. A core biopsy was performed using a trephine bur without flap elevation at the implant placement site for histomorphometric evaluations after 4 months. The change of the marginal bone level was measured using radiography. Results: Twelve patients completed the study. The histomorphometric analysis demonstrated that the mean ratios of the areas of new bone, residual graft material, and soft tissue and the implant stability quotient did not differ significantly between the groups (P>0.05). However, the mean size of the residual graft material showed a significant intergroup difference (P<0.05). Conclusions: The application of 2 compressive forces (5 N, 30 N) on particulate DBBM grafts during open-healing ARP in the posterior area led to comparable new bone formation, implant feasibility and peri-implant bone level.
6시그마 DMADOV기반 ARIZ와 Brainstorming을 이용한 취부용 피스제거 시스템의 최적설계에 관한 연구
이성조,정원지,김기정 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-
This paper presents a new design algorithm for piece-removing dynamical system, based on 6-Sigma DMADOV technique using ARIZ and Brainstorming. Our design target is the piece-removing system installed on a mobile platform of bead-grinding equipment. The 6-Sigma DMADOV technique guides us design process according to 6 steps, i.e., Define - Measure - Analyze - Design - Optimize - Verify. A Design strategy to reduce the weight of piece-removing dynamical system will be explored by using ARIZ, i.e., (the abbreviation of Algorithm for Inventive Problem Solving in Russian).
트리즈와 브레인스토밍을 이용한 취부용 피스제거 자동화시스텡 최적설계에 관한 연구
이성조,정원지,김정현,김기정 한국공작기계학회 2008 한국공작기계학회 춘계학술대회논문집 Vol.2008 No.-
In this paper, I try to present a solution of a problem by analyzing it systematically, using 6 Step Creativity to add the new methodology and to correct or remove parts whose utility is difficult or low in existing TRIZ, when it comes to the problem of heat influence by equipping the existing Welding Bead Removing Module with Gas Torch, and select the optimum solution of the problem by using Push's Matrix for ideas presented through brainstorming founded on this solution, and then I would verify the performance of the module produced on the basis of this solution, by carrying out heat analyze to make it generate the heat of 1,000℃ which is practical operation temperature of Gas Torch.
이성조,조인우 대한구강악안면임플란트학회 2022 대한구강악안면임프란트학회지 Vol.26 No.4
Although alveolar ridge preservation (ARP) has the advantage of reducing alveolar bone resorption after tooth extraction, weak primary stability occurs during implant placement. Immediate implant placement with open healing ARP (iARP) has been implemented to achieve primary stability and to take advantage of both immediate implantation and ARP. Herein, we describe three cases of iARP using deproteinized bovine bone mineral (DBBM) and native bilayer collagen membrane (NBCM) without primary closure. In all cases, delayed healing of the soft tissue was observed, but the implant and bone conditions were maintained without any complications for more than 19 months. Within the limitations of this report, iARP is considered a procedure that can overcome the disadvantages of immediate implant placement and ARP and take advantage.
이성조(Sung-Jo Lee) 한국기독교교육정보학회 2009 기독교교육정보 Vol.24 No.-
Over the last two decades, the postmodern culture of Korean society seems to increasingly challenge Korean Christians by attacking the basic Christian premise of understanding self, God, truth, and human history. Postmodern society does not allow us to take for granted the meta-narrative of salvation history that Christian communities have understood as their own. It also challenges the set of beliefs that Christian communities have considered "the truth" that others do not have. These "truths" have enabled most Christians to have solid and secure identities through sharing biblical narratives and traditions. Accordingly, it is increasingly difficult for Korean Christians to construct a meaningful Christian identity in such a postmodern cultural society. This paper attempts to show a constructive way of forming a Christian identity in the postmodern culture in Korea (1) by reinterpreting four postmodern cultural characteristics through the lens of Trinitarian theology and (2) by incorporating Immanuel Levinas' philosophy, which is centered on ethical relationships with others.