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만성 신부전 환자 21 예에 대한 혈액투석 및 복막투석의 경험
최규보 ( Kyu Bo Choi ),정규원 ( Kyu Won Chung ),민병석 ( Byong Sok Min ),김부성 ( Boo Sung Kim ),김희백 ( Hei Paik Kim ),김신걸 ( Shin Gull Kim ),정준호 ( Joon Ho Chung ),고용복 ( Young Bock Ko ),방병기 ( Byong Ki Bang ) 대한내과학회 1970 대한내과학회지 Vol.13 No.3
This report summarizes the authors experience with 53 dialysis on 21 patients with chronic renal failure treated at St. Mary`s Hospital from Mar. 25, 1969 through Sept. 2, 1969: 42 hemodialysis using Kolff`s twin coil artificial kidney for average 6 hours
필러를 배합한 메타크릴레이트 중합체의 물성에 관한 비교 연구
박동원,최부병,권긍록,Park Dong-Won,Choi Boo-Byong,Kwon Kung-Rock 대한치과보철학회 2003 대한치과보철학회지 Vol.41 No.5
Purpose : The purpose of this study was to research the properties of some chemically cured methacrylate polymers such as MMA, HEMA, TEG-DMA, bis-GMA, GMA. Material and Method : 5 kinds of methacrylates were selected and added 2% tertiary amine and benzoyl peroxide to make a chemically curable polymer 25 micron crushed silicas which are treated with silane were selected as filler, they were added into methacrylate monomer until the consistency did not changed by the load of 500gram. All of the experimental resins were 5 kinds, and a serial test was done with 3 kinds of items including the filler contents, the tensile strength, and the bond strength. The number of specimen were 10 for each group. Filler contents were obtained by reducing the specimens to ashes at $600^{\circ}C$ for 1 hour. The specimens with the dimension of 6mm in diameter and 3mm thick were immersed in $37{\pm}1^{\circ}C$ distilled water for 24 hours before test, and tensile strength were measured with cross-head speed 1mm/min. Shear bond strength were mea sured on the specimens attached to bovine enamel etched with 37% phosphoric acid for 1 minute. Results : 1. Maximum filler incorporation was the highest as 75.5% on MMA, and the least as 53.4% on bis- GMA(p<0.0001). 2. The tensile stregth were MMA 141.3, GMA 154.3, TEG-DMA 157.4, bis-GMA 161.4 MPa, and HEMA showed the highest value, 226.9MPa(p = 0.0004). 3. The bond strength were GMA 10.1, TEG-DMA 11.7, HEMA 12.2, bis-GMA 13.3 MPa, and MMA showed the highest value, 15.3MPa, however statistical significances were not (p =0.3838), 4. TEG-DMA and HEMA were not different on the aspect of maximum filler contents and shear bond strength(p>0.05). Conclusion : HEMA can be used as an another diluent substituting TEG-DMA with the increased strength and with the constant bond strength and the constant filler contents.