Bensaha T
Private Practice, Tangiers, Morocco.
Int J Oral Maxillofac Surg. 2013 Dec;42(12):1557-61. doi: 10.1016/j.ijom.2013.05.005. Epub 2013 Jun 17.
The purpose of this study was to evaluate the potential benefit of an ultrasonic device for cutting soft tissue in the surgical exposure of impacted canines. Forty-eight patients aged from 14 to 24 years were enrolled in this study. They were divided into two equal groups of 24 patients each. Patients in the first group were treated with ultrasonic surgery, whilst those in the second group were treated with a cold steel blade and served as a control group. Under ultrasonic surgery, the rate of cut was slower as compared to the cold steel blade. The ultrasonic cutting procedure was very time-consuming, however bleeding was greatly reduced and the time required for the entire surgical procedure was reduced as compared to the control group. The bonding procedure was aborted in three cases when using the cold steel scalpel, and a two-stage procedure was needed in these cases. Histological evaluation of the gingival resection showed no sharp cutting edges and no tissue necrosis. In conclusion, results of soft tissue cutting by ultrasonic surgery are encouraging. Vibration enhances the cutting ability of the blade and coagulates blood vessels as tissues are incised, with no necrosis occurring. Thus, it is may be possible to place brackets during the same surgery.
本研究的目的是评估一种超声设备在切开软组织以暴露阻生犬齿手术中的潜在益处。48名年龄在14至24岁之间的患者参与了本研究。他们被平均分为两组，每组24名患者。第一组患者接受超声手术治疗，而第二组患者使用冷钢刀片治疗并作为对照组。在超声手术中，切割速度比冷钢刀片慢。超声切割过程非常耗时，然而与对照组相比，出血明显减少，整个手术过程所需时间也减少了。使用冷钢手术刀时，有3例粘结过程中止，这些病例需要分两阶段进行手术。牙龈切除术的组织学评估显示没有锋利的切割边缘，也没有组织坏死。总之，超声手术进行软组织切割的结果令人鼓舞。振动增强了刀片的切割能力，并在切开组织时使血管凝固，不会发生坏死。因此，有可能在同一手术中放置托槽。
