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目的比较引导牙周组织再生术 (GTR)和牙周翻瓣术治疗牙周病的疗效。方法分别以 6 5例采用GTR(治疗组 )和 6 5例牙周翻瓣术 (对照组 )的牙周病患者进行病例对照研究 ,两组病例分别记录术前及术后牙周附着水平、牙周袋深度、根分叉探入深度、牙槽骨高度。结果治疗组与对照组相比 ,术后 3个月、6个月的牙周附着获得、牙周袋深度减少差异有极显著意义 (P <0 0 1) ,根分叉探入深度减少差异有显著意义 (P <0 0 5 ) ;术后 12个月 ,牙周附着获得、牙周袋深度减少、根分叉探入深度减少和牙槽骨高度增加等指标差异有极显著意义 (P <0 0 1)。结论与牙周翻瓣术相比 ,引导牙周组织再生术 (GTR)疗效显著
Objective To compare the effects of guided periodontal regeneration (GTR) and periodontal flap surgery on periodontal disease. Methods Sixty-five patients with periodontal disease treated with GTR (treatment group) and 65 cases with periodontal flap control (control group) were enrolled in the case-control study. Two groups of patients were recorded before and after operation, respectively. Periodontal pocket depth, root bifurcation penetration depth, alveolar bone height. Results Compared with the control group, there was significant difference in the periodontal pocket depth between the treatment group and the control group (P <0.01), and the root bifurcation penetration depth decreased (P <0.05). There was significant difference in index of periodontal attachment, reduction of periodontal pocket depth, reduction of root bifurcation penetration depth and alveolar bone height at 12 months <0 0 1). Conclusion Guided periodontal tissue regeneration (GTR) has a significant effect compared with periodontal flap surgery