多孔性鈣基複合材骨取代物透過鹽溶濾出的方式產生一多孔性結構，孔洞大小適合骨細胞貼覆生長外，孔隙度更足夠高使植入材在人體中快速被吸收引導新生骨長入。
本實驗第一部分將探討製成塊狀多孔性鈣基複合材的基本性質，包括抗壓強度、重量損失率、孔隙度、細胞毒性等，並透過SEM觀察了解。第二部分則把塊狀多孔性鈣基複合材製成顆粒狀，針對不同需求而分成不同大小，大幅增加了臨床上的實用性。

The porous calcium-based bone substitute can be formed a porous structure by using salt leaching method.The pore size is suitable for cell adhesion and growth.It can be rapidly resorbable in human body and inducing bone ingrowth due to high porosity.
The first part of experiment is to be discussed about the properties of block form of porous bone substitute. The properties include compressive strength, weight loss, porosity, and cytotoxicity and further analysed by SEM observation. The second part is to make the porous bone substitute from block type to granule type.Different granule sizes fulfill kinds of requirements, and it will be more practically applied for clinical use.

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