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上皮附着(LEA)是牙周重建治疗后牙周伤口愈合的主要方式。其发生原因是上皮细胞具有迁移能力,并早于牙龈或牙周膜成纤维细胞占据治疗后的根面,在牙周伤口愈合的初期,防止上皮细胞的根尖向迁移,可能使结缔组织细胞有机会重新在治疗后的根面上生长,形成结缔组织的新附着。本研究的目的是评价在牙周伤口愈合初期,胶原膜对阻止上皮向根尖迁移的能力。材料和方法在3条杂种犬的6个上尖牙唇侧造成实验性牙周缺损。即在每个尖牙的唇侧手术去除牙槽骨板,使根面暴露5mm,每
Epithelial attachment (LEA) is the primary method of periodontal wound healing following periodontal reconstruction. The reason for this is that the epithelial cells have the ability to migrate and occupy the treated root surface earlier than the gingival or periodontal ligament fibroblasts. In the early stage of periodontal wound healing, preventing the apical migration of epithelial cells may cause connective tissue cells Have the opportunity to regain the root surface after treatment, the formation of new attachment of connective tissue. The purpose of this study was to evaluate the ability of the collagen membrane to prevent epithelial migration to the root tip during the initial periodontal wound healing. Materials and Methods Experimental periodontal defects were caused on the 6 superior canine labial sides of 3 mongrel dogs. That is, in each canine labial surgery to remove the alveolar bone plate so that the root surface exposed 5mm