Am J Orthod Dentofacial Orthop. 2013 Aug;144(2):278-89. doi: 10.1016/j.ajodo.2012.08.030.
A woman, aged 47 years 6 months, with an anterior open bite and a left-shifted mandible was treated with a mandibular right first molar extraction and without orthognathic surgery. However, her mandibular second molar did not move mesially during treatment because of the dense lamina dura; therefore, corticision was applied only on the mesial aspect of the mandibular second molar, and a miniscrew was inserted simultaneously. Corticision was introduced as a supplemental dentoalveolar surgery in orthodontic therapy to achieve accelerated tooth movement with minimal surgical intervention. In this technique, a reinforced scalpel was used as a thin chisel to separate the interproximal cortices transmucosally without a flap. This technique was applied not to accelerate tooth movement, but to protract the mandibular molars. One miniscrew was inserted on the mesiobuccal side of the mandibular right molar for protraction and intrusion. In addition, 2 miniscrews were inserted in the buccal sides of the maxillary first and second molars and the palatal side of the maxillary first molar to intrude them for correction of the mandibular shift and the cant of the occlusal plane. Excellent occlusion and correction of the anterior open bite were achieved without surgery. At the 2-year follow-up examination, the patient had a good occlusion and showed good stability with no opening of the extraction space. A partial corticision is an effective option for facilitating movement of mandibular molars.
一位 47 岁 6 个月大的女性，存在前牙开颌和下颌左偏，接受了下颌右侧第一磨牙拔除治疗，而未接受正颌手术。然而，由于致密的硬骨板，她的下颌第二磨牙在治疗过程中没有向近中移动；因此，仅在第二磨牙的近中面进行皮质切开术，并同时植入一枚微螺钉。皮质切开术作为正畸治疗中的一种补充牙槽骨手术，旨在通过最小的手术干预实现加速牙齿移动。在该技术中，使用强化手术刀作为薄凿子，在不翻瓣的情况下经黏膜下分离近中皮质。该技术不是用于加速牙齿移动，而是用于远中移动下颌磨牙。在右侧下颌磨牙的颊侧植入一枚微螺钉，用于远中移动和压低。此外，在上颌第一和第二磨牙的颊侧以及上颌第一磨牙的腭侧植入 2 枚微螺钉，以将其压入，从而矫正下颌偏斜和牙合平面的倾斜。无需手术即可获得良好的咬合和前牙开颌矫正。在 2 年的随访检查中，患者的咬合良好，且未出现拔牙间隙打开的迹象，稳定性良好。部分皮质切开术是促进下颌磨牙移动的有效选择。
