【摘要】 作者采用本组研制的致密型生物活性陶瓷(生物活性玻璃陶瓷和锆——羟基磷灰石陶瓷)作立即牙根种植共68例、139颗。患者在局麻下拔牙,形成粘骨膜瓣,根据离体牙根及X线牙片选择人工牙根,植入牙槽窝内,颌端位于牙槽骨缘下2mm,便于血凝块形成。术后定期作临床及x线片观察,结果表明:该材料的生物相容性好,3～6个月后人工牙根周围有明显的新骨形成,种植体与牙槽骨的界面结合牢固,人工牙根稳定且无形状改变,牙槽嵴无明显吸收,故提高了义齿修复的效果。本法操作简单,效果显著。更多还原

【Abstract】 The dense bioactive ceramic(bioactive glass ceramic and zirconium hydro-xylapatite ceramic)made in the research laboratory has been used as immediate root-shaped implants in a total of 139 implants among 68 cases.Teeth were extracted under local anesthesia.Mucoperiosteal flaps were prepared and artificial dental roots were selected according to the preoperative x-ray films and the shapes of roots of the extracted teeth.Then,the artificial roots were buried into the sockets.These roots should be placed 2mm below the alveolar ridgo so that a clot could be formed at the top of the implant.After the operation,all implants have been made clinical and radiographical observations regularly and repeatedly.The results in this study showed that these materials have good biocompatibility. Three to six months later the new bone was obviously formed on the surface of the implant which was firmly bonded with the alveolar bone.It is obvious that no change in the shapes of the implants and a slight absorption of the alveolar ridge could be found.The operation is simple and the effect is excellent.更多还原