Department of Oral Biology, The Maurice and Gabriela Goldschleger, School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel.
Orthod Craniofac Res. 2013 Aug;16(3):161-8. doi: 10.1111/ocr.12014. Epub 2013 Jan 11.
Accelerated orthodontic tooth movement is triggered by procedures that include mucoperiosteum flap surgery and surgical scarring of cortical bone. Our aim was to test whether fiberotomy by itself will accelerate orthodontic tooth movement and diminish relapse.
In 34 Wistar rats, alveolar bone resorption and molar tooth movement were measured after fiberotomy, apical full-thickness flap without detachment of gingiva from the roots, or no surgery. Orthodontic appliance was installed at time of surgery and activated for 14 days, generating movement of the first maxillary molar buccal and then removed.
Percent of sections in which alveolar bone resorption was detected was significantly higher (p < 0.05) after fiberotomy (27%) in comparison with apical flap surgery (12%) or no surgery (6%), after 30 days. Also, at the end of active phase, the molar moved significantly faster (p < 0.01) and twice the distance after fiberotomy (0.54 ± 0.33) in comparison with apical surgery (0.26 ± 0.12) or no surgery (0.3 ± 0.09). Sixteen days after the appliance was removed, only 12% relapse was recorded in the fiberotomy group, while almost total relapse in other two groups.
We conclude that fiberotomy solely accelerated orthodontic tooth movement and diminished relapse.
通过包括黏膜骨膜瓣手术和皮质骨手术瘢痕在内的程序，引发加速正畸牙齿移动。我们的目的是测试纤维切开术本身是否会加速正畸牙齿移动并减少复发。
在 34 只 Wistar 大鼠中，在纤维切开术、根尖全厚瓣而不将牙龈从根部分离或不手术的情况下，测量牙槽骨吸收和磨牙移动。在手术时安装正畸器械并激活 14 天，使第一上颌磨牙颊向移动，然后移除。
在第 30 天时，纤维切开术（27%）后检测到牙槽骨吸收的节段百分比明显高于根尖瓣手术（12%）或无手术（6%）（p < 0.05）。此外，在主动阶段结束时，纤维切开术组的磨牙移动速度明显更快（p < 0.01），距离是根尖手术组（0.26 ± 0.12）或无手术组（0.3 ± 0.09）的两倍（0.54 ± 0.33）。移除器械 16 天后，纤维切开术组仅记录到 12%的复发，而其他两组几乎完全复发。
我们得出结论，纤维切开术仅能加速正畸牙齿移动并减少复发。
