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骨性Ⅱ类高角深覆患者垂直向上颌骨过度发育的非拔牙治疗。

Treatment of vertical maxillary excess without open bite in a skeletal Class II hyperdivergent patient.

出版信息

Angle Orthod. 2017 Jul;87(4):625-633. doi: 10.2319/101816-753.1. Epub 2017 Mar 20.

Abstract

A 20-year-old woman visited the office complaining of a gummy smile and lip protrusion. She was diagnosed with vertical maxillary excess without open bite and skeletal Class II hyperdivergent pattern. She refused the surgical-orthodontic treatment option, although she wanted to correct the gummy smile and retruded chin. Differential intrusion of anterior and posterior teeth in both arches was necessary to maximize the skeletal treatment effects. In the maxilla, one palatal temporary anchorage device (TAD), an archwire with an accentuated curve of Spee, and a transpalatal arch were applied. In the mandible, an archwire with a reverse curve of Spee and two vertically positioned TADs were used. These simple mechanics contributed to the effective intrusion of the total upper and lower arches, correction of the gummy smile, and mandibular counterclockwise rotation, offering an alternative to orthognathic surgery for this patient.

摘要

一位 20 岁的女性因露龈笑和唇突就诊。她被诊断为垂直性上颌过度,无开颌,呈骨性 II 类高角型。她拒绝接受正颌正畸治疗,但希望矫正露龈笑和后缩的下巴。为了最大限度地发挥骨骼治疗效果,需要在前牙和后牙弓中进行差动内收。在上颌,使用了一个腭部临时锚定装置(TAD)、带有Spee 曲线增强的弓丝和一个横跨腭部的弓丝。在下颌,使用了带有Spee 反向曲线的弓丝和两个垂直放置的 TAD。这些简单的力学原理有助于有效地内收上下牙弓,矫正露龈笑,并使下颌逆时针旋转,为该患者提供了一种替代正颌手术的方法。

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