http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Titanium 표면처리 방법이 Osteoblast-like Cells의부착 및 증식에 미치는 영향
김도영,설양조,류인철,함병도,정종평,최상묵,김우진,백홍구,허성주,한종현,김명호,최용창,전흥재,권수경,Kim, Do-Yung,Seol, Yang-Jo,Rhyu, In-Cheul,Hahm, Byung-Do,Chung, Chong-Pyoung,Choi, Sang-Mook,Kim, Woo-Jin,Baik, Hong-Koo,Heo, Seong-Joo,Han, Cho 대한치주과학회 2000 Journal of Periodontal & Implant Science Vol.30 No.3
In clinical therapy, the current goal of dental implants is to enhance quantity and quality of osseointegration. Surface roughness and oxide structure are considered to influence the behavior of adherent cells. The purpose of this study is to evaluate the effect of different surface treatment on cellular response. The attachment and proliferation of osteoblast-like cell on sandblasted, sandblasted and etched, thermal oxidated surfaces have been compared. Sandblasting was done with $Al_2O_3$ particles(grain size of $50{\mu}m$), etching was processed with $NH_4OH$ : $H_2O_2$ : $H_2O(1:1:5)$ at $90^{\circ}C$ for 1 minute. Thermal oxidation was followed sandblasting and etching at $400^{\circ}C$, $600^{\circ}C$, $800^{\circ}C$ for 2 hours. Measurement of surface roughness after the different treatment did not show any differences of Ra value between terated surfaces. Cell attachment and proliferation were increased during experiment period, but no difference was observed. SEM evaluation revealed a similar pattern of osteoblast-like cells, well attached with dendritic extension and producing numerous matrix vesicles on cell surface. The results of this study showed that oxide layer alteration by thermal oxidation did not affect the attachment and proliferation of osteoblast-like cells. This suggests the possibility that the cellular responses are further influenced by surface roughness than titaniun oxide structure.