多孔块状β-磷酸三钙在齿槽裂修复中的应用  

Application of porous block β-tricalcium phosphote in cleft alveolar reconstruction

作　　者：周瑞庆[1] 张瑛[1] 蒋丽萍[1] 刘伟弘[1] 

机构地区：[1]上海市第二医科大学附属新华医院口腔科,上海200092

出　　处：《口腔医学》2005年第4期228-229,共2页Stomatology

摘　　要：目的评价多孔块状β-磷酸三钙在齿槽裂修复中的应用价值。方法齿槽裂的修复手术运用局部黏骨膜瓣形成袋状受植囊,同时关闭鼻、唇、腭间的软组织裂隙,恢复解剖形态;去除裂隙两侧上颌突的骨皮质;采用多孔块状β-磷酸三钙,根据裂隙大小、形状及与健侧的对称性,修整人工骨,植入裂隙。结果手术切口一期愈合,无植入物排出,外形恢复理想,局部饱满。术后3个月X线片可见局部骨性愈合,术后1.5年X线片可见植入人工骨基本被自体骨取代。结论用多孔块状β-磷酸三钙修复齿槽裂,具有恢复形态准确;修复创伤小的优点;植入物组织相容性好,具有骨引导性,可降解,能被自体骨完全取代,且无不良反应。Objective To evaluate the effect of reconstruction and to reduce the surgical trauma by restoring cleft alveolar with osteoconductive porous block β-tricalcium phosphote. We also discussed the application of porous block β-tricalcium phosphote in cleft alveolar reconstruction. Methods In the process of reconstructive operation, first, we formed a bag with mucosa-periosteum flap to accept implant. Meanwhile, we closed parenchyma cleft of nasal cavity, lip, and palate and resumed anatomic shape. We rubbed out cortical bone of cleft alveolar and then shaped the block β-TCP based on the normal anatomic shape of the other side of alveolar, and put the shaped implant into the cleft and closed the wound. Results The surgeries were successful and the shape reconstructions were perfect as no implant was rejected. Three months after surgery, we could see bone concrescence on the X-ray, and we also saw the artificial bone was absorbed and replaced by the patient＇s own bone one year and a half after surgery. Conclusions We could find some advantages in reconstructing the maxillary cleft alveolar with porous block β-TCP. We could reconstruct the maxillary shape at once and reduce the surgical trauma. The implant had very good bioconpatibility, osteoconductibility and degradability.

关 键 词：齿槽裂 修复 Β-磷酸三钙 

分 类 号：R782.22[医药卫生—口腔医学]