Charavet C, Lecloux G, Bruwier A, Rompen E, Maes N, Limme M, Lambert F
Department of Orthodontics and DentoFacial Orthopedics, University Hospital of Liège, Belgium Dental Biomaterials Research Unit, Faculty of Medicine, University of Liège, Belgium
Dental Biomaterials Research Unit, Faculty of Medicine, University of Liège, Belgium Department of Periodontolgy and Oral Surgery, University Hospital of Liège, Belgium.
J Dent Res. 2016 Aug;95(9):1003-9. doi: 10.1177/0022034516645066. Epub 2016 Apr 29.
This randomized controlled trial aimed to evaluate the benefits and clinical outcomes of piezocision, which is a minimally invasive approach to corticotomy that is used in orthodontic treatments. Twenty-four adult patients presenting with mild overcrowdings were randomly allocated to either a control group that was treated with conventional orthodontics or a test group that received piezo-assisted orthodontics. The piezocisions were performed 1 wk week after the placement of the orthodontic appliances. Neither grafting material nor sutures were used. All patients were followed every 2 wk, and archwires were changed only when they were no longer active. The periods required for the completion of the overall orthodontic treatments were calculated, and the periodontal parameters were evaluated at baseline and at the end of the orthodontic treatment. Patient-centered outcomes were assessed with a visual analog scale; analgesic use following the procedures was also recorded. The patient characteristics were similar between the 2 groups. The overall treatment time was significantly reduced by 43% in the piezocision group as compared with the control group. In both groups, periodontal parameters (i.e., recession depth, pocket depth, plaque index, and papilla bleeding index) remained unchanged between the baseline and treatment completion time points. No increase in root resorption was observed in either group. Scars were observed in 50% of the patients in the piezocision group. Analgesic consumption was similar following orthodontic appliance placement and piezocision surgery. Patient satisfaction was significantly better in the piezocision group than in the control group. In these conditions, the piezocision technique seemed to be effective in accelerating orthodontic tooth movement. No gingival recessions were observed. The risk of residual scars might limit the indications for piezocision in patients with a high smile line (ClinicalTrials.gov NCT02590835).
这项随机对照试验旨在评估压电切开术的益处和临床效果，压电切开术是一种用于正畸治疗的微创皮质切开术方法。24例表现为轻度牙列拥挤的成年患者被随机分配到接受传统正畸治疗的对照组或接受压电辅助正畸治疗的试验组。在放置正畸矫治器1周后进行压电切开术。未使用移植材料和缝线。所有患者每2周随访一次，仅在弓丝不再起作用时才更换。计算完成整个正畸治疗所需的时间，并在基线和正畸治疗结束时评估牙周参数。采用视觉模拟量表评估以患者为中心的结果；还记录了术后的镇痛药物使用情况。两组患者的特征相似。与对照组相比，压电切开术组的总体治疗时间显著缩短了43%。在两组中，牙周参数（即牙龈退缩深度、牙周袋深度、菌斑指数和龈乳头出血指数）在基线和治疗完成时间点之间保持不变。两组均未观察到牙根吸收增加。压电切开术组50%的患者观察到瘢痕。正畸矫治器放置和压电切开术后的镇痛药物消耗量相似。压电切开术组患者的满意度显著高于对照组。在这些情况下，压电切开术技术似乎能有效加速正畸牙齿移动。未观察到牙龈退缩。残留瘢痕的风险可能会限制高微笑线患者的压电切开术适应证（ClinicalTrials.gov NCT02590835）。
