聚四氟乙烯膜引导人牙周组织再生的扫描电镜观察  

Evaluation of expanded polytetrafluoroethylene membrane in guided periodontal tissue regeneration with scanning electron microscope

作　　者：朱国强[1] 吴织芬[1] 王勤涛[1] 

机构地区：[1]西安第四军医大学口腔医学院,710032

出　　处：《实用口腔医学杂志》2001年第2期141-143,共3页Journal of Practical Stomatology

摘　　要：目的 :观察国产膨体聚四氟乙烯膜 (e PTFE)运用于引导牙周组织再生 (GTR)技术的临床效果。方法 :临床上选取 9名ⅡⅢ度根分叉区病变的患者 ,采用e PTFE为屏障膜 ,行引导组织再生术 ,5周后二次手术取膜 ,即时固定 ,常规处理 ,对牙龈侧的e PTFE分别进行冠方、中部和根方的组织学和扫描电镜 (SEM )观察。结果 :冠方e PTFE有大量炎细胞浸润 ,少量散在球菌。中部和根方有大量的纤维细胞附着并进入膜孔隙 ,淋巴细胞与红细胞混杂其间。结论 :国产膨体聚四氟乙烯膜有较好的生物相容性 ,能较好的封闭手术创口 ,早期能抑制结合上皮根向移动 ,适于临床应用。砄bjective: To evaluate the effects of expanded polytetrafluoroethylene (ePTFE) barrier membrane in guided periodontal tissue regeneration(GTR) . Methods:Nine patients with Ⅱ~Ⅲ furcation lesions were treated by guided tissue regeneration using ePTFE membrane. The membrane was retrieved 5 weeks after operation and examined by scanning electron microscopy (SEM) . Results:Large amount of lymphocytes were found on the external upper surfaces of ePTFE, with a little bacteria. The external lower surface of ePTFE was full of fibrocytes, red blood cells and lymphocytes.Conclusion:ePTFE membrane is biocompatible and can close the primary wound over a barrier which stops the downgrowth of junctional epithelium at the early stage of periodontal tissue repair after operation.

关 键 词：牙周组织再生 聚四氟乙烯膜 扫描电镜 生物相容性材料 

分 类 号：R780.2[医药卫生—口腔医学]