中文摘要：

收集临床上离体牙,经高温煅烧去除有机成分,将其与（ NH4）2 HPO4溶液混合后再次煅烧,制得以羟基磷灰石（ HA）和β-磷酸三钙（β-TCP）为主要成分的双相陶瓷,磨碎过200目筛,用有机泡沫浸渍法制备多孔生物陶瓷,对材料进行物相分析、扫描电镜、孔隙率、元素分析和抗压强度检测。牙源性多孔陶瓷材料呈白色,主要物相为 HA 和β-TCP,为大孔/微孔多孔网状结构,孔隙率为74.85%,Ca/P为1.62,抗压强度应为（3.483±0.321）MPa。

英文摘要：

The detachment teeth were calcinated first time in order to remove the organic principle,and second cal-cinated with the aqua of （NH4）2HPO4,then get biphasic bioceramics composed with Hydroxyapatite（HA）and β-tricalcium phosphate（β-TCP） . After grinding through 200 mesh screen,the porous bioceramics was prepared by im-mersion method using organic foam. At the same time,a series of examinations were carried out including energy dispersion analysis of X-ray,scanning electron microscope,the porosity of scaffolds,elemental analysis and compres-sive strength. It showed that the ceramic was white and the main phase was HA/β-TCP,which presented reticular structure with macropore and micropore. The porosity of scaffolds was 74. 85 percent and the calcium to phosphorus ratio of bioceramics was 1. 62. The compressive strength could attain（3.483±0.321）MPa.