Atsawasuwan Phimon, Hohlt William, Evans Carla A
Assistant professor, Department of Orthodontics, University of Illinois at Chicago, Chicago, Ill.
Clinical professor, Department of Orthodontics, University of Illinois at Chicago, Chicago, Ill.
Am J Orthod Dentofacial Orthop. 2015 Apr;147(4):499-508. doi: 10.1016/j.ajodo.2014.04.024.
Anterior open bite is one of the most challenging malocclusions for orthodontic treatment. The high incidence of relapse is a major concern. Therefore, accurate initial examination, diagnosis, treatment plan, and consideration of habitual risk factors are crucial for a successful outcome without unwanted sequelae. Excellent patient compliance for retainer wear is also a critical factor. This case report shows the 3-year stability of a nonsurgical and nonextraction orthodontic treatment of a 5-mm anterior open-bite malocclusion in a 12-year-old girl with extrusion mechanics and habit modification. After 2 years of orthodontic treatment, excellent outcomes were achieved. With an appropriate retention protocol, the long-term stability of the treatment was favorable.
前牙开颌是正畸治疗中最具挑战性的错颌畸形之一。复发率高是一个主要问题。因此，准确的初始检查、诊断、治疗计划以及对习惯性危险因素的考虑对于获得成功结果且无不良后遗症至关重要。患者对保持器佩戴的良好依从性也是一个关键因素。本病例报告展示了一名12岁女孩采用推压矫治力和习惯矫治方法对5毫米前牙开颌错颌畸形进行非手术、不拔牙正畸治疗的3年稳定性。经过2年的正畸治疗，取得了优异的效果。通过适当的保持方案，治疗的长期稳定性良好。
