[논문]HA-coated Zirconia의 생물학적 활성도에 관한 연구

남석우; 김해원; 김현이; 양승민; 신승윤; 이용무; 정종평; 한수부; 최상묵; 류인철

doi:10.5051/jkape.2003.33.1.1

[국내논문] HA-coated Zirconia의 생물학적 활성도에 관한 연구
Biological Activities of HA-coated Zirconia 원문보기

대한치주과학회지 = The journal of Korean academy of periodontology, v.33 no.1, 2003년, pp.1 - 11

Abstract ▼ AI-Helper

Hydroxyapatite(HA) has been extensively used as bone graft materials and tooth implant surface coating materials because of its biocompatibility and osteoconductive properties. However, as HA is intrinsically poor in mechanical properties, zirconia($ZrO_2$) was incorporated with HA as reinforcing phases for improvement of mechanical properties. The purpose of this study was to investigate the biological activities of HA-coated zirconia through the cell proliferation test, measurements of alkaline phosphatase activity, and histologic examination. Four kinds of tested blocks were prepared according to the pore size (300-500${\mu}m$/500-700${\mu}m$) and the porosity (70%/90%). Cell proliferation and alkaline phosphatase activity was measured at 1, 7, 14 days. The number of cells proliferate after 7, 14 days were significantly increased in all groups when compared with that of the first day, but there was no significant difference between the 4 groups at each time period. At the 7 day, alkaline phosphatase activities of cells cultured in 4 groups were higher than that of the first day, but there was no significant difference between the 4 groups at each time period. The human gingival fibroblast and MG 63 cell was used to evaluate the cell cytotoxicity using MTT test. The materials tested in the current study turned out to be non-cytotoxic. In histologic examination(SEM), at 1 day there were many cells attached on the surfaces of all kinds of tested blocks. The number of cells were increased over time. At the 14 day, there were more cells proliferated than 1 day and some of the pores of blocks were partially filled with the proliferated cells. The in vitro response of osteoblast-like cells to the HA-coated zirconia showed comparable effect on transformation comparable to hydroxyapatite.

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참고문헌 (26)

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[국내논문] HA-coated Zirconia의 생물학적 활성도에 관한 연구
Biological Activities of HA-coated Zirconia 원문보기

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[국내논문] HA-coated Zirconia의 생물학적 활성도에 관한 연구 Biological Activities of HA-coated Zirconia 원문보기

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[국내논문] HA-coated Zirconia의 생물학적 활성도에 관한 연구
Biological Activities of HA-coated Zirconia 원문보기