수종의 의치상 레진으로 개면시 나타나는 의치상의 dimensional stability에 관한 연구

태윤섭,동진근,조혜원 원광대학교 치의학연구소 1993 圓光齒醫學 Vol.3 No.2

The purpose of this study was to evaluate the dimensional change of processed simulated denture bases after relining with several types of resins. The denture base resin in this study was Vertex(Dentimex Co., Holland). The reline resins in this study were premium Super 20(Lang Dental Mfg., USA), Repair Acrylic(Lang Dental Mfg., USA) and Triad VLC Reline material (Dentsply International Inc.. USA). The results obtained were as follows 1. The linear dimensional change (shrinkage) for the light activated reline resin (Triad, USA) was statistically greater than those of heat cured resin and self cured resin. 2. No significant difference in dimensional change was found between heat cured resin and self cured resin, and there was no significant differnce in dimensional change between processing methods.

캔틸레버의 길이와 하중이 하악 임플랜트지지 고정성 보철물의 응력 분산에 미치는 영향

태윤섭,조혜원 원광대학교 치의학연구소 1997 圓光齒醫學 Vol.7 No.2

The purpose of this study was to evaluate the effect of cantilever length, load, and implant number on the stress distribution of implant supported fixed prosthesis. In the replica of an edentulous human mandible, four or five implants were placed and spaced evenly between the mental foramina and symmetrical gold alloy cast superstructures with cantilever were fabricated. Strain gauges were placed in buccal and lingual side of implants. 9, 15, 21㎏ of loads at varying cantilever lengths were applied to the occlusal surface of fixed prostheses. The strains were recorded from each gauge and principal stresses were calculated The results were as follows : 1. Increasing the length of the cantilever increased the stresses on the bone supporting implants, and the ratio of increase became high as increasing the load. 2. In the model with four implants, the highest compressive stress was measured on lingual side of the first implants nearest loading point and the highest tensile stress was measured on buccal side of the second implants. 3. In the model with five implants, the highest compressive stress was measured on lingual side of the first implants nearest loading point. And the highest tensile stress was measured on buccal side of the second implants, and lingual side of the third implants. 4. There was no significant change of the magnitude of stress on the most distal implant of non cantilevered side as increasing the cantilever length or load. 5. In general, the superstructure supported by five implants reduced the stress and was less affected by cantilever length compared to the support provided by four implants.

캔틸레버의 길이와 하중이 하악 임플랜트지지 고정성 보철물의 응력 분산에 미치는 영향

태윤섭,이화영,조혜원,Tae, Yen-Sup,Lee, Wha-Young,Cho, Hye-Won 대한치과보철학회 1998 대한치과보철학회지 Vol.36 No.4

The purpose of this study was to evaluate the effect of cantilever length, load, and implant number on the stress distribution of implant supported fixed prosthesis. In the replica of an edentulous human mandible, four or five implants were placed and spaced evenly between the mental foramina and symmetrical gold alloy cast superstructures with cantilever were fabricated. Strain gauges were placed in buccal and lingual side of implants. 9, 15, 21kg of loads at varying cantilever lengths were applied to the occlusal surface of fixed prostheses. The strains were recorded from each gauge and principal stresses were calculated The results were as follows : 1. Increasing the length of the cantilever increased the stresses on the bone supporting implants. and the ratio of increase became high as increasing the load. 2. In the model with four implants, the highest compressive stress was measured on lingual side of the first implants nearest loading point and the highest tensile stress was measured on buccal side of the second implants. 3. In the model with five implants, the highest compressive stress was measured on lingual side of the first implants nearest loading point. And the highest tensile stress was measured on buccal side of the second implants, and lingual side of the third implants. 4. There was no significant change of the magnitude of stress on the most distal imp]ant of non cantilevered side as increasing the cantilever length or load. 5. In general, the superstructure supported by five implants reduced the stress and was less affected by cantilever length compared to the support provided by four implants.

夫婦同體에 관하여

太允燮 圓光大學校 附設 法學硏究所 1973 法學硏究 Vol.3 No.-

夫婦同體에 관하여

太允燮 원광대학교 법학연구소 1973 圓光法學 Vol.3 No.-

무선 RSSI 환경 변화의 실내 측위에서 예측 정확도의 영향 확인

태윤섭(Tae Yoon Sub),권도혁(Kwon Do Hyeok),홍송남(Hong Song Nam) 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.11

본 논문에서는 실내에서의 Wi-Fi 신호가 갖는 불안정성으로 인해 신호의 fingerprinting을 활용하고, DNN(Deep Neural Network)을 이용한 실내 측위에서 예측의 정확도가 어느 정도로 하락하는지 확인한다. 실내 측위 연구에서 빈번히 활용되는 UJIIndoorLoc의 데이터를 사용하고 데이터에 환경요소적인 손상을 가정하고 처리를 해준 후 DNN의 예측 정도가 얼마나 바뀌는 지 확인하고 원래의 값과 비교한다. 이 후 이러한 문제점을 해결 할 수 있는 방안에 대해 재고한다.

임플란트의 수와 어태치먼트의 종류에 따른 하악 임플란트 지지 오버덴춰의 삼차원 광탄성 응력분석

한상훈,태윤섭,진태호,조혜원 원광대학교 치의학연구소 1997 圓光齒醫學 Vol.7 No.1

The purpose of this study is to evaluate the stress distribution in the bone around dental implants supporting mandibular overdenture according to the number of implant and the type of attachment. Two or four implants were placed in an edentulous mandibular model and three dimensional photoelastic stress analysis was carried out to measure the fringe order around the implant supporting structure and also to calculate principal stress components at cervical area of each implant. The attachments tested were rigid and resilient type of Dolder bar, Round bar, Hader bar and Dal-Ro attchment. The results were as follows ; 1. In 2-implant supported overdenture using Round bar, Hader bar, and Dal-Ro attachment, compressive stress pattern was observed on the supporting structure of implant on loaded side, while tensile stress pattern in unloaded side. 2. In 2-implant supported overdenture using Dolder bar, the rigid Dolder bar shared the occlusal loads between 2 implants in a more favorable manner than was exhibited by the resilient type, while the resilient type placed a more stress on the distocervical area of the implant on the loaded side. But compressive stress pattern was observed in both the loaded and unloaded sides in either case. 3. In 2-implant supported overdenture, rigid and resilient type of Dolder bar exhibited more cross arch involvement than the Round bar, Hader bar, or Dal-Ro attachment. 4. In 4-implant supported overdenture using resilient Dolder bar and Hader bar, stress turned out to be distributed evenly among the implants between loaded and unloaded side, but there was no reduction in the magnitude of the stress in the surrounding structure of implant contratry to 2-implant supported overdenture. 5. The stress pattern at cervical area of implant was different with the number of implant or the type of attachment but the overload, harmful to surrounding structure of implant, was not observed.

임플란트의 수와 어태치먼트의 종류에 따른 하악 임플란트 지지 오버덴춰의 삼차원 광탄성 응력분석

한상훈,태윤섭,진태호,조혜원,Han, Sang-Hoon,Tae, Yoon-Sup,Jin, Tae-Ho,Cho, Hye-Won 대한치과보철학회 1997 대한치과보철학회지 Vol.35 No.3

The purpose of this study is to evaluate the stress distribution in the bone around dental implants supporting mandibular overdenture according to the number of implant and the type of attachment. Two or four implants were placed in an edentulous mandibular model and three dimensional photoelastic stress analysis was carried out to measure the fringe order around the implant supporting structure and also to calculate principal stress components at cervical area of each implant. The attachments tested were rigid and resilient type of Dolder bar, Round bar, Hader bar and Dal-Ro attchment. The results were as follows ; 1. In 2-implant supported overdenture using Round bar, Hader bar, and Dal-Ro attachment, compressive stress pattern was observed on the supporting structure of implant on loaded side, while tensile stress pattern in unloaded side. 2. In 2-implant supported overdenture using Dolder bar, the rigid Dolder bar shared the occlusal loads between 2 implants in a more favorable manner than was exhibited by the resilient type, while the resilient type placed a more stress on the distocervical area of the implant on the loaded side. But compressive stress pattern was observed in both the loaded and unloaded sides in either case. 3. In 2-implant supported overdenture, rigid and resilient type of Dolder bar exhibited more cross arch involvement than the Round bar, Hader bar, or Dal-Ro attachment. 4. In 4-implant supported overdenture using resilient Dolder bar and Hader bar, stress turned out to be distributed evenly among the implants between loaded and unloaded side, but thor was no reduction in the magnitude of the stress in the surrounding structure of implant contratry to 2-implant supported overdenture. 5. The stress pattern at cervical area of implant was different with the number of implant or the type of attachment but the overload, harmful to surrounding structure of implant, was not observed.

Thermal cycling에 따른 도재 수리용 콤포짓트 레진의 색안정성과 미세누출에 관한 연구

조혜원,오상천,태윤섭 원광대학교 치의학연구소 1996 圓光齒醫學 Vol.6 No.2

The differences in color and microleakage of the two kinds of porcelain repair resins were compared before and after 2000 thermal cycling. Two kinds of metal specimens(Rexillium III & Supranium) were cast and porcelain repair resins were built up on the specimen using Clearfil porcelain repair system & Scotchprime system. The color differences were measured by Colorimeter(TC-6FX, Tokyo Denshoku Co., Japan) and microleakage was measured using silver nitrate staining method. The results were as follows:. 1. There were color differences between the identical shades of two porcelain repair systems and the kinds of metal substructures also had some effects on the color of the repair resins. 2. After thermal cycling the color was changed, but the effect was different due to the types of repair resins and metal substructures. 3. The microleakage was not shown in any porcelain repair resin systems.