Addanki Pavankumar, Gooty Jagadish Reddy, Palaparthy Rajababu
Department of Periodontics, Kamineni Institute of Dental Sciences, Nalgonda, Telangana, India.
Contemp Clin Dent. 2017 Apr-Jun;8(2):321-326. doi: 10.4103/ccd.ccd_846_16.
Periodontally accelerated osteogenic orthodontics is a clinical procedure that combines selective corticotomy, particulate grafting, and application of orthodontics. It reduces treatment time, increases stability of teeth, and prevents relapse of orthodontic tooth moment. The present study was aimed to explore the clinical and radiographic comparison of bone density changes, retraction time differences in buccal and palatal corticotomy with buccal corticotomy which was done by surgical bur.
A split-mouth was designed in 16 patients and divided into right (buccal and palatal corticotomy) (Group I), left (buccal corticotomy) (Group II) sides. In both groups, decortication was done with surgical bur. Clinical parameters such as gingival bleeding index and probing pocket depth were recorded at baseline, 1 month, 3 months, and 6 months. Bone density changes were measured by computed tomography at baseline and after 6 months after surgery and also used for evaluating differences in bone density changes between two groups. Retraction time differences were also measured in both groups.
In both groups, there was significant difference between bone density changes at baseline and 6 months after surgery. However, the difference between two groups was not significant. The difference in clinical parameters between two groups was not significant. The difference in retraction time differences was not significant.
Within limits of the study, it may be concluded that there was difference between bone density changes before and 6 months after surgery. Difference in total treatment time found to be no significant between two groups.
牙周加速成骨正畸是一种将选择性皮质切开术、颗粒移植术和正畸治疗相结合的临床操作。它可缩短治疗时间,增加牙齿稳定性,并防止正畸牙移动复发。本研究旨在探讨骨密度变化的临床和影像学比较,以及使用手术钻进行颊侧皮质切开术与颊腭侧皮质切开术在牙齿内收时间上的差异。
对16例患者设计了双侧对照研究,分为右侧(颊腭侧皮质切开术)(第一组)和左侧(颊侧皮质切开术)(第二组)。两组均使用手术钻进行去皮质术。在基线、1个月、3个月和6个月时记录牙龈出血指数和探诊深度等临床参数。在基线和术后6个月通过计算机断层扫描测量骨密度变化,并用于评估两组之间骨密度变化的差异。同时也测量了两组的内收时间差异。
两组在基线和术后6个月时骨密度变化均有显著差异。然而,两组之间的差异不显著。两组临床参数的差异不显著。内收时间差异的差异不显著。
在本研究范围内,可以得出结论,手术前和术后6个月骨密度变化存在差异。两组总治疗时间差异不显著。