Obserfation to Interface of Porous Tricalcium Phosphate Ceramics implanted into Bone Zheng Qixin ;Zhu Tongbo ;Du Jingyuan (Assoc,Prof., Xehe Hospital of Tongji Me cal University,Wuhan430022,China)The blocks of porous tricalcium phosphate (TCP)ceramics were implanted into femoralCondyles cavities of wistar rates in this experiment.SEM observation showed that new bone contacted tightly With materials,and they could changed mormally from were defect in interface. The conjunctions among crystals ruptured,Micopores of the materials became larger or microcavities appearred.In the meanwhile,osteoclasts could be Rate of the new bone was higeher to ,Electronic probe scan showed that ca concentration boht the implanted materials .These results showed an active degradation in the materials of interface.:tricalcium phosphate;ceramics;interfac;degradation