RESEARCH FOR DEVELOPMENT OF BIOMECHANICAL DENTAL IMPLANT WITH ARTIFICIAL PERIODONTAL LIGAMENT

(1)牙周韧带发育杂交型本研究的目的是验证rhBMP-2结合纤维胶原膜（FCM）带（宽度为3mm）在Beagle犬移植牙中的再生效果。对3只beagle犬进行根管治疗后的24颗前磨牙进行了仔细的拔除。再植前，将牙周韧带和牙骨质在根中部围成3 mm宽的带状区域部分去除，根牙本质脱落区域用FCM/rhBMP-2覆盖。结果表明：rhBMP-2与FCM联合可诱导再植牙的牙周膜和牙骨质的形成。(2)人类再植牙和移植牙牙周膜x线片诊断成像我们在再植牙2周和移植牙4周后确认牙周膜间隙正常。(3)家兔再植牙的牙周再生。我们证实在再植4周后，牙釉质的再生与对照牙相当。

(1)Development Hybrid Type of Periodontal LigamentThe purpose of this study is to confirm the regeneration in the replanted tooth of Beagle dog by rhBMP-2 combined with ribbon (3 mm width) of fibrous collagen membrane (FCM). Twenty-four premolars of three beagle dogs were carefully extracted after thier root canals were treated. Before replantation their periodontal ligament and cementum were partially removed in a belt-type area (3 mm width) around the middle part of the root, and the denuded areas of root dentin were covered with FCM/rhBMP-2. It was concluded that combination of rhBMP-2 and FCM incduces periodontal ligament and cementum in the replanted tooth.(2)Diagnostic Imaging by Radiographs for Periodontal Membrane of Replanted and Transplanted tooth in HumanWe concluded that the normal space of periodontal membrane comfirmed 2-weeks fter the replantation and 4-weeks after the transplantation.(3)Periodontal regeneration in replanted tooth in rabit.We comfirmed the regeneration of priodontalligament 4-weeks after replantation was equivalent to the control tooth.