http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Vital Bleaching이 법랑질 접착에 미치는 영향
김종해,권태엽,권용훈,김교한 大韓齒科器材學會 2003 대한치과재료학회지 Vol.30 No.4
The objective of this in vitro study was to evaluate the effect of bleaching on the composite to enamel bond and surface hardness change. Extracted human premolars were treated with 35% hydrogen peroxide (Sigma Chemical Co, USA) for 1hr/day at 0, 3, 6 and 9 day respectively. For the obsrvation of surface mophology alteration due to the treatment with hydogen peroxide, a SEM (S-4300, Hitachi, Japan) was used. The specimens were ground flat using serial SiC papers and ground ultra-finely using a 0.1㎛ diamond compound paste. To measure the microhardness, five non-carious premolars were ground using SiC papers and ten indentations were made on the surfacd with Vickers hardness tester (FM-7 FUTURE-TEC Inc., Japan). To evaluate shear bond strength, composite was bonded with One Up Bond-F, Prompt L-Pop, AQ Bond to the non-bleached and bleached enamel surface of sixty non-carious premolars. The bonding procedure is postponed for 1 week after bleaching and shear bond strength was measured. All specimens with a SEM. Bleaching created some enamel porosity but the teeth showed nonsignificant morphological chonge as bleaching time increased from SEM analysis. Most microhardness change occured on the first day of bleaching. Bleaching with 35% hydrogen peroxide did not result in significant change in the shear bond strength of composite resin to enamel. In the shear bond strength test, the fractured surfaces of specimens showed mixed adhesive and cohesive failure behavior.
김경숙,구교만,조재훈,최원현 한국특수체육학회 2000 한국특수체육학회지 Vol.8 No.2
The purpose of this study is to investigate the physical self-concept of thc disabled. The data for this study are collected from 253 questionnaires which are answered by the disabled. The questionnaires of this study were used PSDQ(Physical Self-Description Questionnaire) invented by Marth & Richards(1994), which were translated by Yong-kuk Kim. We used SpssWins 8.0 program for handling the data that was carried out t-test by each item. The results of this study are as follows. 1. In case of physical self-concept of the disabled according to exercise, there are significant differences in sex and age. 2. In case of physical self-concept of the disabled according to exercise, there are significant differences in income and education level. 3. In case of physical self-concept of the disabled according to exercise, there are significant differences in congenital and acquired disorder groups.
Stage II B형 골육종에 대한 술전 항암화학요법 및 수술적 치료 결과
김정만,우영균,김형민,김훈교,이승구,강용구 가톨릭중앙의료원 가톨릭암센터 1997 암심포지움 Vol.- No.1
Recent advances in imaging techniques, surgery and combination anti-cancer chemotherapy have brought high survial rates in osteosarcoma. To investigate the survival rate, local recurrence and complications in treatment, we analysed 25 osteosarcoma cases who had been treated with preoperative neo-adjuvant chemotherapy, surgery and post operative chemotherapy at Department of Orthopedic Surgery, Catholic University. From May 1988 to April 1995, 42 cases of stage IIB osteosarcoma were admitted in Department of Orthopedic surgery. Among them, 17 cases who didn't follow our treatment guidance were excluded in this study. The average age were 19 years. There were 21 males and 4 females. The involved sites were 4 humerus, 10 femur, 10 tibia and 1 talus. Eleven cases had received intra-arterial cisplatin and intravenous adriamycin chemotherapy, and 7 T-10 protocol and 7 intravenous ifosfamide, ADR, methotrexate, cisplatin. Among twenty-three cases were treated with limb salvage surgery, and 2 amputation. The average follow-up was 35 months(3-82). There were 14 cases of continuous disease free, 9 cases of died of desease, 1 case of alive with disease, and 1 case of no evidence of disease at final follow-up. There were three cases of local recurrence at 6,8 and 12 months after operation. The Estimated kaplan-Meier's 5 year survival rates for all, ADR-cisloatin group, T-10 protocol group, and ifosfamide regimen group were 66%, 73%, 44% and 72%, respectively.
골반 교정운동이 요부형태의 천골각 및 통증에 미치는 효과
정훈교,김현준 忠北大學校 平生體育硏究所 1997 平生體育硏究所 論文集 Vol.9 No.-
The purpose of this study was to examine the effects of pelvis corrective exercise for low back pain sampled from high school baseball players who complained their low back pain. Lumbar shape, and pain responses were examined before and after treatment to identify the effects of pelvis corrective exercises. The number of subjects were 39 consisted of four groups: control group, active goroup, assistive group, and active/assistive combined group. The time periods of treatments were 30 minutes per day, 5 times a week, total 18 weeks. Lumbar X-ray, DITI(Digital Infrared Thermographic Imaging) were utilized before and after treatment for data collection. Kruskal-Wallis Analysis was used to compare the differences of lumbar shapes as well as the differences of pain responses in between groups. The results of this study were as follow: 1. The effects on lumbar sacral angle among tests of lumbar shape were found most forcefully in assistive group and active/assistive combined group next. 2. The effects on pain responses were shown in rank such as active/assistive combined group first, assistive group second, and active group third. Therefore, pelvis corrective exercises could be regarded as an effective method to correct body type and relieve low back pain.
권태엽,권용훈,김교한,송근배 大韓齒科器材學會 2003 대한치과재료학회지 Vol.30 No.2
The objective of this study was to evaluate the effect of various enamel surface treatments on the bond strength of a composite resin to enamel (n=15). Ground bovine enamel specimens were divided into seven groups. A composite resin (Z250. 3M) was bonded to the specimens using different enamel surface treatments. Four groups examined the effect of application of all-in-one adhesives (Prompt L-Pop (POP), One-Up Bond F (ONE)) with respect to static priming (SP) or dynamic priming (DP). The other two examined use of the POP and ONE after phosphoric acid etching (PE). And the control group provided bond strength of the composite resin to phosphoric acid etched enamel with a resin bonding system (Single bond, SB, 3M). Shear bond strengths for the specimens were measured after 24 hours storage in water at 37 ℃. Effects of various surface treatments on enamel were examined by SEM. Dynamic priming resulted in higher enamel bond strengths than static priming and the best bond strengths were obtained when the enamel was etched with phosphoric acid. SEM analysis showed that depth of etching was related to the bond strengths measured. The enamel etch pattern after static priming showed little retentive surfaces. After dynamic priming, the enamel rod structure has become apparent in the shallow etch. SEM view showed that the resin tags and resin penetration were related to the bond strengths measured. SEM showed minimal resin penetration into enamel following static priming. After application of adhesives to phosphoric acid etched enamel, SEM showed more extended tags that are reflective of the deeper etch pattern.