Division of Orthodontics, University of Connecticut Health, Farmington, CT, USA.
Division of Orthodontics, University of Connecticut Health, Farmington, CT, USA.
Int Orthod. 2021 Dec;19(4):707-715. doi: 10.1016/j.ortho.2021.08.001. Epub 2021 Aug 25.
Class III malocclusion when accompanied with transverse and vertical maxillomandibular discrepancies such as posterior crossbite and vertical open bite leads to complicated orthodontic treatment. Proper diagnosis and treatment planning are important in such patients for a successful orthodontic outcome. A common treatment approach for patients with class III malocclusion is to wait for the completion of growth and plan orthognathic surgery in conjunction with orthodontic treatment. However, performing no treatment and waiting for growth to be completed during teen years could lead to negative effects on the patient's self-esteem. In such cases, a non-surgical option with skeletal anchorage could be used to correct the malocclusion without surgical intervention. This case report shows that in patients with severe class III malocclusion, skeletal anchorage can be used for the correction of anterior crossbite with intermaxillary elastics.
III 类错颌畸形伴横向和垂直颌骨不调，如后牙反颌和垂直开颌，导致复杂的正畸治疗。对于此类患者，正确的诊断和治疗计划对于获得成功的正畸效果非常重要。对于 III 类错颌畸形患者的常见治疗方法是等待生长完成，并计划与正畸治疗相结合的正颌手术。然而，在青少年时期不进行治疗并等待生长完成可能会对患者的自尊心产生负面影响。在这种情况下，可以使用带有骨骼锚固的非手术选择来纠正错颌畸形，而无需手术干预。本病例报告表明，对于严重的 III 类错颌畸形患者，可以使用骨骼锚固通过使用颌间橡皮圈来纠正前牙反颌。
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