Al-Naoum Fadi, Hajeer Mohammad Y, Al-Jundi Azzam
Specialist in Orthodontics (MSc), PhD Student, University of Al-Baath Dental School, Hamah, Syria.
Associate Professor, Department of Orthodontics, University of Damascus Dental School, Damascus, Syria.
J Oral Maxillofac Surg. 2014 Oct;72(10):1880-9. doi: 10.1016/j.joms.2014.05.003. Epub 2014 May 14.
To evaluate the efficacy of alveolar corticotomy on orthodontic tooth movement when retracting upper canines compared with the conventional technique and to evaluate patients' pain and discomfort levels after corticotomy.
A split-mouth design randomized controlled trial at the Department of Orthodontics (University Al-Baath Dental School) was performed. A total of 30 patients whose orthodontic treatment required canine retraction were included. The predictor variable was the use of corticotomy to facilitate tooth movement. The velocity of space closure was evaluated as the primary outcome variable by measuring the distance between the canine and first molar on each side of the mouth immediately after corticotomy and at 1, 2, 4, 8, and 12 weeks after corticotomy. The levels of pain and discomfort were evaluated as the secondary outcome variables using a questionnaire administered 4 times during the first week after corticotomy. Paired t tests or Wilcoxon matched-pairs signed-rank tests were used to detect significant differences.
A total of 30 patients (15 males and 15 females) were recruited with a mean age of 20.04 ± 3.63 years (range 15 to 24). The space closure velocity after corticotomy was significantly faster on the experimental side than on the control side (mean = 0.74 mm/week vs 0.20 mm/week between 1 week after and immediately after corticotomy, respectively; P < .001). The pain encountered during eating was high, with 50% and 30% of patients reporting severe pain at 1 and 3 days postoperatively, respectively. No significant differences were detected between the male and female patients regarding the tooth movement velocity on the experimental side.
Alveolar corticotomy increased orthodontic tooth movement and was accompanied by moderate degrees of pain and discomfort.
评估牙槽骨皮质切开术在回收上颌尖牙时相对于传统技术对正畸牙齿移动的疗效，并评估皮质切开术后患者的疼痛和不适程度。
在正畸科（阿尔-巴阿特大学牙科学院）进行了一项采用分口设计的随机对照试验。共纳入30例正畸治疗需要回收尖牙的患者。预测变量是使用皮质切开术来促进牙齿移动。通过测量皮质切开术后即刻以及术后1、2、4、8和12周时口腔两侧尖牙与第一磨牙之间的距离，将间隙关闭速度作为主要结局变量进行评估。使用皮质切开术后第一周内4次发放的问卷将疼痛和不适程度作为次要结局变量进行评估。采用配对t检验或Wilcoxon配对符号秩检验来检测显著差异。
共招募了30例患者（15例男性和15例女性），平均年龄为20.04±3.63岁（范围15至24岁）。皮质切开术后，试验侧的间隙关闭速度明显快于对照侧（分别在术后1周和术后即刻，平均速度为0.74 mm/周对0.20 mm/周；P<.001）。进食时遇到的疼痛程度较高，分别有50%和30%的患者在术后1天和3天报告严重疼痛。试验侧牙齿移动速度在男性和女性患者之间未检测到显著差异。
牙槽骨皮质切开术增加了正畸牙齿移动，并伴有中度的疼痛和不适。
