CAD/CAM으로 제작된 임플란트 맞춤형 지대주의 방사선학적 평가

윤태경,이경제,정재헌,김희중,Yun, Tae-Gyeong,Lee, Gyeong-Je,Chung, Chae-Heon,Kim, Hee-Jung 대한치과보철학회 2017 대한치과보철학회지 Vol.55 No.3

목적: 이번 연구에서, 다양한 상황에서 골소실양을 평가하기 위하여 맞춤형 지대주를 사용한 환자에서 4년간의 후향적 방사선학적인 연구를 시행하였다. 대상 및 방법: 이번 연구의 대상은 CAD/CAM 맞춤형 지대주를 이용한 임플란트 고정성 보철물이다. 2011년 8월 1일부터 2012년 7월 31일 까지 조선대학교 치과병원 보철과에서 제작하여 고정성 보철물로 사용된 CAD/CAM 맞춤형 지대주와 상부 보철물들을 대상으로 하였으며, 고정성 보철물을 제작한 환자에 대하여 방사선학적 평가를 시행하여 보철물 장착 후 3개월, 6개월, 1년, 2년, 3년, 4년 단위로 총 4년 간의 후향적 연구를 시행하였다. 결과:연구 결과, CAD/CAM을 이용한 맞춤형 지대주는 기존 연구 결과에 비해 골소실 양이 적었다. 연결 고정된 그룹과 연결 고정되지 않은 그룹 간에 골소실 양(각각 0.27 mm, 0.5 mm)에 통계적으로 유의한 차이가 없었다. 또한 상악 전치부, 상악 구치부, 하악 전치부, 하악 구치부의 부위별 골소실양(각각 1.37 mm, 0.39 mm, 0.00 mm, 0.30 mm)에 통계적으로 유의한 차이가 있었다. 결론:CAD/CAM을 이용한 맞춤형 지대주는 연결 고정 여부에 따른 골소실 양에서 통계적으로 유의한 차이가 없었으며, 임플란트 식립 부위에 따른 골소실 양에서 통계적으로 유의한 차이가 있었다. Purpose: In this study, the retrospective radiographic study is executed to evaluate amount of bone loss of various conditions in patients using customized abutment for 4 years of follow-up. Materials and methods: The subjects of this study were implant fixed dental prosthesis using CAD/CAM customized abutments. CAD/CAM customized abutment and fixed dental prosthesis were manufactured by the Prosthodontics Department of Chosun University Dental Hospital from August 1, 2011 to July 31, 2012. Radiological assessments were performed on the patients who were treated by the fixed prosthodontics. After each treatment, a retrospective study was performed for a total of 4 years at 3 months, 6 months, 1 year, 2 years, 3 years, and 4 years. Results: As a result of the study, the customized abutment using CAD/CAM showed less bone loss than the results of existing research. There was no statistically significant differences at alveolar bone loss between splinting group and non-splinting group (respectively 0.27 mm, 0.5 mm). Also, there were statistically significant differences at alveolar bone loss in mx. anterior, mx. posterior, mn. anterior and mn. posterior part (respectively 1.37 mm, 0.39 mm, 0.00 mm, 0.30 mm). Conclusion: The customized abutment using CAD/CAM showed less bone loss than the results of existing research, there were statistically significant differences at alveolar bone loss in implant positions.

Early fertilization and absorbent treatments continuously enhanced windbreak tree growth and soil properties in the Hetao Plain of Inner Mongolia, China

윤태경,손요환,Yingming Zhao,노남진,강호덕 한국산림과학회 2014 Forest Science And Technology Vol.10 No.1

Intensive and continuous management has rarely been applied in forestation designed to combat desertification, except for afew instances of fertilization and irrigation in the early stage in northern China. We hypothesized that early and discontinuousfertilization and absorbent treatments would continuously increase tree growth and improve soil properties in an aridregion. In 2003 and 2004, treatments of nitrogen fertilization and absorbents were applied to Populus alba var. pyramidalistrees in an experimental windbreak site in the Hetao Plain of Inner Mongolia, China. Nevertheless, the current study resultshave demonstrated that early and discontinuous nitrogen fertilization and absorbent treatments continuously increased treegrowth (2003–2009) without any significant improvement in soil properties in 2010. The study results suggest that earlyand discontinuous fertilization and absorbent practices may be sufficiently effective in forestation aimed at combatingdesertification in arid lands where continuous maintenance cannot be expected.

신우신염 흰쥐모델에서 비타민 A와 항생제 병용 투여 시 신염증 억제 효과

윤태경,이승주,조용현 대한비뇨의학회 2003 Investigative and Clinical Urology Vol.44 No.5

혼합층 이온교환

윤태경,Foutch, Gary L 한국화학공학회 1993 NICE Vol.11 No.1

Mass dynamics of coarse woody debris in an old-growth deciduous forest of Gwangneung, Korea

윤태경,손요환,노남진,김래현,서경원,이수경,이궁,이임균,임종환 한국산림과학회 2011 Forest Science And Technology Vol.7 No.4

We investigated the mass dynamics of coarse woody debris (CWD) in an old-growth deciduous forest dominated by Quercus serrata, Carpinus laxiflora, and C. cordata in a 1 ha permanent plot of the Gwangneung Experiment Forest, Korea, from 2002 through 2010. CWD mass varied from 16.8 to 34.2 Mg ha71, and the ratio of CWD mass to stand biomass varied from 0.06 to 0.13. The mean CWD mass input and loss rates were 4.81 Mg ha71 yr71 and 2.28 Mg ha71 yr71, respectively. A large heterogeneity of CWD mass, as represented by the spatial coefficient of variation (127.2%) and annual coefficient of variation (178.5%), might be inherent in the old-growth temperate forest, which consisted of large biomass trees. The decay rate constant, as estimated from the wood density change, was 0.049 yr71. However, the large variation of annual CWD mass input could cause the overestimation of decay rate constant (0.167 yr71) as calculated from the ratio of CWD mass input to CWD mass. According to the CWD decay class classification, class II (72.8%) comprised the majority of CWD mass. The proportion of CWD mass to total CWD mass was 57.5% for Q. serrata, 25.0% for C. laxiflora, and 10.4% for C. cordata, respectively, and corresponded to the proportion of stem biomass to total stem biomass. These data support the stability of the current status in this old-growth deciduous forest as representing the climax stage. Due to the relatively short-term measurement of CWD mass compared with the whole life span of CWD, additional long-term studies with various approaches are required to enhance the knowledge of CWD mass dynamics in this forest.

이온교환을 이용한 질산성 질소제거의 속도론적 고찰

윤태경,이동한,전진희,채용곤,이민규 한국공업화학회 1998 한국공업화학회 연구논문 초록집 Vol.1994 No.1

A kinetic study for anion exchange was performed using batch and continuous column reactors. The obtained results from the batch reactor were applied to the Langmuir and Freundlich models. The constants for Langmuir model were q_max=29.82 and b=0.202, and for Freundlich model were K=5.509 and n=1.772. Langmuir model showed better fit than Frendlich model for the experimental results. Ion exchange reaction rate was also calculated and the approximate first-order reaction rate constant k_1 was 0.16 L/㎎ ·hr. Kinetic approach from the packed bed also showed the reaction rate constant ranged from 0.07 to 0.17L/㎎ ·hr and maximum exchange quantity from 27.75 to 3.81 ㎎ /g. The results from the continuous column well agreed with that from the batch reactor.

중국의 사막화 : 토지 이용과 지역 주민의 삶

윤태경 숲과 문화 연구회 2011 숲과 문화 Vol.20 No.5

체육교사의 지도유형이 초등학생의 학습태도에 미치는 영향

윤태경,김재운 경인교육대학교 교육연구원 2018 교육논총 Vol.38 No.1

본 연구는 초등학교에서 체육을 가르치는 담임교사 및 체육전담교사의 지도유형이 학생의 학습태 도에 미치는 영향을 알아보는 데 목적이 있다.이 연구의 목적을 달성하기 위하여 경기도 부천시 소재의 S 초등학교 5,6학년 학생들을 대상으로 설문조사를 실시하였다.설문을 바탕으로 교사의 지도유형을 파악하고,지도유형에 따른 학습태도의 차이를 분석하여 다음과 같은 결론을 얻었다. 목표인식태도에서는 긍정적 보상형이 민주적 행동형보다,교수와 지시형이 민주적 행동형보다 더 나은 영향을 미치는 것으로 나타났다.활동참여태도에서는 긍정적 보상형이 민주적 행동형보다 더 나은 영향을 미치는 것으로 나타났다.평가인식태도에서도 긍정적 보상형이 민주적 행동형보다 더 나은 영향을 미치는 것으로 나타났다.결론적으로 긍정적 보상형이 민주적 행동형보다 학습태 도의 전 영역에서 더 나은 결과를 나타냈다. The purpose of this study is to investigate the effects of physical education teachers’ leadership styles on elementary students learning attitudes. A questionnaire survey was conducted with 5th and 6th graders at an elementary school in Bucheon. Based on their responses, the teachers’ leadership styles were identified, and differences in learning attitudes according to the leadership styles were found as follows. For the goal awareness attitude, the positive reward style as well as the instruction and direction style were more effective than the democratic behavior style. For both the activity participation attitude and the evaluation attitude, the positive reward style was more effective than the democratic behavior style. In conclusion, the positive reward style had better effects on every domain of learning attitude than the democratic behavior style.

복강경을 이용한 외상성 복강내 방광파열의 치료

윤태경,서성일,김준철,박용현,황태곤 대한비뇨의학회 2003 Investigative and Clinical Urology Vol.44 No.4

신바로3 약침과 한방치료를 병행한 견관절 관절와순 파열 환자 치험 3례

윤태경,이소진,이은지,정주용,현민경,김문휘,박재영 대한침구의학회 2016 대한침구의학회지 Vol.33 No.4

A Case Report of Patients with Labrum Tear in Shoulder Treated by Oriental Therapy, Including Sinbaro3 Pharmacopuncture Tae Kyung Yoon1, So Jin Lee1, Eun Ji Lee2, Ju Yong Jeong3, Min Kyoung Hyun4, Moon Hwi Kim5 and Jae Young Park1 1Department of Acupuncture and Moxibustion Medicine, Bu-Cheon Jaseng Hospital of Korean Medicine 2Department of Acupuncture and Moxibustion Medicine, Chung-Yeon Oriental Hospital 3Department of Acupuncture and Moxibustion Medicine, Dongshin University College of Oriental Medicine 4Department of Acupuncture and Moxibustion Medicine, Dongseo Korean Medical Hospital 5Department of Acupuncture and Moxibustion of Korean Medicine, Haeundae Jaseng Korean Medicine Hospital Objectives : The purpose of this report is to show that oriental therapy, using Sinbaro3 pharmacopuncture in particular, is effective for symptom improvements and ROM in patients diagnosed with labrum tear in shoulder. Methods : 3 patients were admitted to Jaseng Oriental Medicine Hospital, were diagnosed with a tear of the labrum, and were treated with oriental medicine including Sinbaro3 pharmacopuncture. 3 case were measured and assessed by SPADI(Shoulder Pain and Disability Index), shoulder range of motion (ROM) and a shoulder physical examination. Results : After treatment, patients’ SPADI decreased and they showed improvement of ROM(range of movement). In patients with labrum tear, oriental medicine treatment and Sinbaro3 pharmacopuncture was effective for relieving pain and facilitating better movement. Conclusion : In line with the above results, it can considered that oriental medical therapy including Sinbaro3 pharmacopuncture is effective for the relief of pain and for recovering function in the shoulder joint.