Ridge Architecture Preservation Following Minimally Traumatic Exodontia Techniques and Guided Tissue Regeneration
Ridge Architecture Preservation Following Minimally Traumatic Exodontia Techniques and Guided Tissue Regeneration
复制标题
DOI：
10.1097/id.0000000000000886
复制
发表时间：
2019-08-01
影响因子：
--
通讯作者：
Coelho, Paulo Guilherme
中科院分区：
文献类型：
--
作者：
Faciola Pessoa de Oliveira, Paula Gabriela;Bergamo, Edmara Tatiely Pedroso;Coelho, Paulo Guilherme
目的：比较3种拔牙方法对硬组织愈合的影响。材料与方法：犬的前磨牙拔除：（1）无瓣，（2）瓣，（3）瓣+窝用聚四氟乙烯（dPTFE）不可吸收膜覆盖（瓣+ dPTFE）。在第1周和第4周对动物实施安乐死。测量牙槽窝内成骨量和牙槽窝总面积。结果：骨形成量在1周和4周之间有显著性差异，但组间无显著性差异。4周后牙槽窝总面积下降，皮瓣+ dPTFE组牙槽窝总面积明显高于对照组。作为时间和组的函数，皮瓣+ dPTFE 4周时的牙槽窝总面积值与1周时的皮瓣+ dPTFE相似，且牙槽窝总面积显著高于无皮瓣和皮瓣。组织学切片显示1周后牙槽内几乎没有骨形成，4周时所有组的骨形成均增加。结论：用聚四氟乙烯（dPTFE）膜覆盖牙槽窝可有效地保护骨结构。拔牙技术不影响牙槽骨形成。
Objective: To compare hard-tissue healing after 3 exodontia approaches. Materials and Methods: Premolars of dogs were extracted: (1) flapless, (2) flap, and (3) flap + socket coverage with polytetrafluoroethylene (dPTFE) nonresorbable membrane (flap + dPTFE). Animals were euthanized at 1 and 4 weeks. Amount of bone formation within socket and socket total area were measured. Results: Amount of bone formation revealed significant difference between 1 and 4 weeks; however, there was no differences among groups. Socket total area decreased after 4 weeks, and the flap + dPTFE group showed significantly higher socket total area. As a function of time and group, flap + dPTFE 4 weeks presented similar socket total area values relative to flap + dPTFE at 1 week, and significantly higher socket total area than flapless and flap. The histological sections revealed almost no bone formation within socket after 1 week, which increased for all groups at 4 weeks. Conclusion: Socket coverage with polytetrafluoroethylene (dPTFE) membrane showed to effectively preserve bone architecture. Bone formation within sockets was not influenced by tooth extraction technique.