Aksakalli Sertac, Calik Berra, Kara Burcak, Ezirganli Seref
a Assistant Professor, Department of Orthodontics, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey.
b Research Assistant, Department of Orthodontics, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey.
Angle Orthod. 2016 Jan;86(1):59-65. doi: 10.2319/012215-49.1. Epub 2015 May 19.
To compare the extent of canine distalization and the transversal changes, postdistalization gingival indices, and mobility scores between patients who were undergoing orthodontic treatment involving upper premolar extraction with (experimental group) or without piezocision.
Twenty maxillary canines of 10 patients were evaluated with split mouth design. Pre- and postdistalization dental casts were prepared and scanned with an orthodontic scanner to compare the extent of distalization and transversal changes between the two groups. The pre- and postdistalization gingival indices and mobility scores were also calculated.
Three-dimensional analysis of the models revealed significant differences in tooth movement (lesser anchorage loss and greater canine distalization) between the experimental and control groups. Furthermore, the distalization time was shortened in the experimental group. There were no differences in the transversal changes, pre- and postdistalization gingival indices, or mobility scores between groups.
Piezocision-assisted distalization accelerates tooth movement, decreases the anchorage loss for posterior teeth, and does not induce any maxillary transversal change. Moreover, piezocision does not have any adverse effects on periodontal health.
比较在接受涉及拔除上颌前磨牙的正畸治疗的患者中，使用压电切开术（实验组）与未使用压电切开术的患者之间犬齿远中移动的程度、横向变化、远中移动后牙龈指数和松动度评分情况。
采用双盲设计对10例患者的20颗上颌尖牙进行评估。制备远中移动前后的牙模，并用正畸扫描仪进行扫描，以比较两组之间远中移动的程度和横向变化。同时计算远中移动前后的牙龈指数和松动度评分。
模型的三维分析显示，实验组和对照组在牙齿移动方面存在显著差异（支抗丧失较少，犬齿远中移动较多）。此外，实验组的远中移动时间缩短。两组之间在横向变化、远中移动前后的牙龈指数或松动度评分方面没有差异。
压电切开术辅助远中移动可加速牙齿移动，减少后牙的支抗丧失，且不会引起上颌的任何横向变化。此外，压电切开术对牙周健康没有任何不良影响。
