使用两个不同位置的微型植入物放置的预调扁立矫治器进行集体侵入和回缩

IF 0.1 Q4 DENTISTRY, ORAL SURGERY & MEDICINE
A. Felicita, Shabeena Kader
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引用次数: 0

摘要

本文比较了两名患者在不同位置放置微型种植体进行上颌前牙集体侵彻和回缩时的治疗结果。两名患者均患有骨骼II类错牙合,安氏I类臼齿关系,I类犬齿关系,上下前牙向列。在第一种情况下,通过传统的摩擦机制进行空间闭合的侵入和回缩,并通过放置在中线的微型植入物施加侵入力。在第二种情况下,通过从第二前磨牙和第一恒磨牙双边之间的微型植入物的前部附件施加力来进行侵入和回缩。上颌前牙受到两种力学的侵犯。然而,在间隙闭合结束时对治疗结果的评估显示,第一例上颌第一恒磨牙向近中移动。在第二种情况下,注意到上颌第一恒磨牙的远端移动和侵入,以及下前面部高度的降低。当锚固要求不重要时,第一种情况下的力学可以应用于上颌前牙的咬合和回缩。在第二种情况中描述的力学可以用于在具有非常高的锚定需求的情况下上颌前牙的侵入和回缩,并且对于具有垂直生长模式的患者将是有益的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
En-masse intrusion and retraction with preadjusted edgewise appliance using two different sites of mini-implant placement
This article compares the treatment outcome between two patients when en-masse intrusion and retraction of the maxillary anterior teeth were performed with mini-implants placed at different sites. Both the patients had a skeletal Class II malocclusion with Angle's Class I molar relation, Class I canine relation, proclination of upper and lower anterior teeth. In the first case, intrusion and retraction was done with conventional friction mechanics for space closure and an intrusive force from a mini-implant placed in the midline. In the second case, intrusion and retraction were done with the application of force from the anterior attachments to mini-implants placed between the second premolars and first permanent molar bilaterally. There was intrusion of the maxillary anterior teeth with both mechanics. However, the evaluation of treatment outcome at the end of space closure showed mesial movement of the maxillary first permanent molar in the first case. In the second case, distal movement and intrusion of the maxillary first permanent molar and decrease in the lower anterior facial height was noted. The mechanics in the first case can be applied for intrusion and retraction of maxillary anterior teeth when anchorage requirement is not critical. The mechanics described in the second case can be used for intrusion and retraction of maxillary anterior teeth in cases with a very high anchorage need and will be beneficial in patients with vertical growth pattern.
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来源期刊
International Journal of Orthodontic Rehabilitation
International Journal of Orthodontic Rehabilitation DENTISTRY, ORAL SURGERY & MEDICINE-
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