口腔颌面外科杂志
口腔頜麵外科雜誌
구강합면외과잡지
CHINESE JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY
2015年
1期
34-38
,共5页
郭凌云%张劲娥%袁建兵%黄远亮
郭凌雲%張勁娥%袁建兵%黃遠亮
곽릉운%장경아%원건병%황원량
快速原形技术%羟基磷灰石/聚己内酯支架%骨髓基质细胞%生物相容性%犬
快速原形技術%羥基燐灰石/聚己內酯支架%骨髓基質細胞%生物相容性%犬
쾌속원형기술%간기린회석/취기내지지가%골수기질세포%생물상용성%견
rapid-prototyping technique%nano-hydroxyapatite/poly-ε-caprolactone (nano-HA/PCL)scaffold%bone marrow cells%biocompatibility%dogs
目的:探讨快速原型制作纳米-羟基磷灰石/聚己内酯(nano-HA/PCL)根形三维支架的细胞生物相容性,为进一步体内实验提供研究基础。方法:通过CT 扫描获得犬头颅骨影像信息,以CAD 软件实现犬下颌牙根形态的三维重建影像,应用快速原型(RP)技术制作nano-HA/PCL根形支架,经犬骨髓基质细胞接种后体外复合培养,检测支架材料的细胞相容性。结果:通过CT影像和快速原型技术,可实现解剖根形态结构nano-HA/PCL三维仿真支架。细胞支架复合培养后,扫描电镜显示细胞生长附着于支架表面;细胞与支架复合后增殖情况良好;7 d和14 d碱性磷酸酶活性高于对照组。结论:体外复合培养结果表明,RP技术制备的nano-HA/PCL支架和骨髓基质细胞生物相容性较好,可进一步应用于牙槽骨缺损骨组织工程修复动物实验。
目的:探討快速原型製作納米-羥基燐灰石/聚己內酯(nano-HA/PCL)根形三維支架的細胞生物相容性,為進一步體內實驗提供研究基礎。方法:通過CT 掃描穫得犬頭顱骨影像信息,以CAD 軟件實現犬下頜牙根形態的三維重建影像,應用快速原型(RP)技術製作nano-HA/PCL根形支架,經犬骨髓基質細胞接種後體外複閤培養,檢測支架材料的細胞相容性。結果:通過CT影像和快速原型技術,可實現解剖根形態結構nano-HA/PCL三維倣真支架。細胞支架複閤培養後,掃描電鏡顯示細胞生長附著于支架錶麵;細胞與支架複閤後增殖情況良好;7 d和14 d堿性燐痠酶活性高于對照組。結論:體外複閤培養結果錶明,RP技術製備的nano-HA/PCL支架和骨髓基質細胞生物相容性較好,可進一步應用于牙槽骨缺損骨組織工程脩複動物實驗。
목적:탐토쾌속원형제작납미-간기린회석/취기내지(nano-HA/PCL)근형삼유지가적세포생물상용성,위진일보체내실험제공연구기출。방법:통과CT 소묘획득견두로골영상신식,이CAD 연건실현견하합아근형태적삼유중건영상,응용쾌속원형(RP)기술제작nano-HA/PCL근형지가,경견골수기질세포접충후체외복합배양,검측지가재료적세포상용성。결과:통과CT영상화쾌속원형기술,가실현해부근형태결구nano-HA/PCL삼유방진지가。세포지가복합배양후,소묘전경현시세포생장부착우지가표면;세포여지가복합후증식정황량호;7 d화14 d감성린산매활성고우대조조。결론:체외복합배양결과표명,RP기술제비적nano-HA/PCL지가화골수기질세포생물상용성교호,가진일보응용우아조골결손골조직공정수복동물실험。
Objective:To fabricate nano-hydroxyapatite/Poly-ε-caprolactone(nano-HA/PCL) scaffold with three-dimensional simulation of the root shape by using a rapid prototyping (RP) process. To evaluate biocompatibility of the scaffold used for bone tissue engineering. Methods: Parietal bone image information of canine was obtained by CT scan, three-dimensional reconstruction images were performed by CAD, roots shape nano-HA/PCL scaffolds was obtained by RP technology. Canine 3rd passage bone marrow stromal cells (BMSCs) were seeded in nano-HA/PCL scaffolds and grown in osteogenic medium. Cells were harvested after 1, 3, and 7 days. BMSCs proliferation and ALP activity were measured. Results: Scanning electron micrographs showed the BMSCs adhered to the inner surface of the scaffolds. Cell proliferation steadily increased with time, and alkaline phosphatase activity in the scaffolds at 7- day and 14- day were enhanced. Conclusion: The os-teogenic potential of BMSCs seeded at the rapid prototyped nano-HA/PCL scaffolds demonstrate a good biocompatibility, and may be effective for animal experiment in alveolar bone repair in the near future.