Unit of Orthodontics and Dentofacial Deformities, Oral Health and Sciences Centre (OHSC), Post-Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India.
Unit of Orthodontics and Dentofacial Deformities, Oral Health and Sciences Centre (OHSC), Post-Graduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India.
Int Orthod. 2024 Dec;22(4):100900. doi: 10.1016/j.ortho.2024.100900. Epub 2024 Oct 9.
Patients seek orthodontic treatment to correct unesthetic and asymmetric smiles because even a minimal cant of 4 is well perceived by a layperson. This case report describes a nonsurgical orthodontic management of iatrogenic occlusal canting in a 22-year-old female, who developed it during a previous orthodontic treatment for an impacted canine. The iatrogenic cant was corrected by the intrusion of the left mandibular segment followed by extrusion of left maxillary segment using mini-implants. Mini-implants were inserted in the mandibular left buccal segment (the first between canine and premolar, the second between the second premolar and first permanent molar), and the intruded mandibular posteriors were stabilized with the help of stainless-steel ligature (0.012″ SS) tied to the mini-implant. The expected correction of the occlusal cant, asymmetric gingival and tooth exposure, and soft tissue lip cant were corrected resulting in a significant improvement in smile aesthetics at the end of orthodontic treatment. After a follow-up period of 24months, the results were stable.
患者寻求正畸治疗来纠正不美观和不对称的笑容，因为即使是 4 度的微小倾斜，非专业人士也能很好地察觉。本病例报告描述了一名 22 岁女性患者在之前因埋伏尖牙而进行的正畸治疗中出现的医源性咬合倾斜的非手术正畸管理。通过使用微型种植体使左侧下颌骨段内倾和左侧上颌骨段外展，纠正了医源性倾斜。微型种植体插入下颌左侧颊侧段（第一在犬齿和前磨牙之间，第二在第二前磨牙和第一恒磨牙之间），并使用不锈钢结扎丝（0.012″ SS）将内倾的下颌后牙固定在微型种植体上。预期的咬合倾斜、不对称的牙龈和牙齿暴露以及软组织唇倾斜的矫正，使正畸治疗结束时的笑容美学得到了显著改善。经过 24 个月的随访，结果稳定。
