一、牙周组织引导性再生的概念组织引导性再生(guided tissue regeneration,GTR)是近十年来在牙周治疗的研究和临床应用中的一个热门课题.由于牙龈上皮和结缔组织的再生修复速度快于牙周膜和牙槽骨,使得牙周治疗后牙周韧带附着的再建立和牙槽骨的再修复成为困难。牙周组织引导再生术就是在牙周手术中利用具有某种特性的膜状材料,覆盖在病变牙槽骨嵴以及 The concept of guided regeneration of periodontal tissue Guided tissue regeneration (GTR) is a hot topic in the research and clinical application of periodontal treatment in recent ten years.Because the rate of regeneration and repair of gingival epithelium and connective tissue Faster than the periodontal ligament and alveolar bone, making the re-establishment of periodontal ligament attachment and alveolar bone re-repair become difficult after periodontal treatment. Periodontal tissue guided regeneration is the use of periodontal surgery has a certain characteristics of the membranous material, covering the lesion alveolar ridge and