Yamanouchi K, Chang C Y, Yamada S
Department of Periodontics, Tokyo Dental College, Chiba, Japan.
Bull Tokyo Dent Coll. 1995 Feb;36(1):9-17.
This investigation was designed to compare the clinical efficacy of open flap/expanded polytetrafluoroethylene (e-PTFE) membrane combination therapy to open flap therapy alone in the treatment of class II and class III furcation bony defects. The efficacy was evaluated by statistical analysis of the change in values for probing pocket depth, gingival recession, and relative (probing) attachment level. The statistical analysis indicated that the guided tissue regeneration (GTR)-applied group had better efficacy than the non-applied group in the treatment of furcation bony defects. Moreover, the GTR-applied maxillary group had better efficacy than the GTR-applied mandibular group, and the GTR-applied class III group was better than the GTR-applied class II group. These results were diametrically opposed to the results from the non-applied class II group. These results were diametrically opposed to the results from the non-applied group. By histological examination, new attachment of newly formed cementum with inserting of oriented collagen fibers was noted. We also found new bone formation and partial bone repair in the former furcation bony defect.
本研究旨在比较开放性瓣/膨体聚四氟乙烯（e-PTFE）膜联合治疗与单纯开放性瓣治疗在Ⅱ类和Ⅲ类根分叉骨缺损治疗中的临床疗效。通过对探诊深度、牙龈退缩和相对（探诊）附着水平值变化的统计分析来评估疗效。统计分析表明，应用引导组织再生（GTR）的组在根分叉骨缺损治疗中的疗效优于未应用的组。此外，应用GTR的上颌组疗效优于应用GTR的下颌组，应用GTR的Ⅲ类组优于应用GTR的Ⅱ类组。这些结果与未应用的Ⅱ类组的结果截然相反。这些结果与未应用组的结果截然相反。通过组织学检查，发现新形成的牙骨质有新的附着，并插入了定向胶原纤维。我们还在前根分叉骨缺损处发现了新骨形成和部分骨修复。
