Power arms as adjuncts for root control in lower incisor extraction treatment with clear aligners: A case report.

IF 1.5 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of Orthodontics Pub Date : 2025-09-01 Epub Date: 2025-08-17 DOI:10.1177/14653125251358825

Bayan Alyammahi, Abrar Mohammad, Kabir Syed Gyasudeen, Yasmin Youssef, Tommaso Castroflorio, Mauro Farella, Sabarinath Prasad

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引用次数: 0

Abstract

Background: Clear aligner therapy (CAT) has become a popular choice among patients seeking orthodontic treatment. However, CAT is not optimal for certain types of tooth movements. This case report illustrates a hybrid approach combining CAT with power arms to achieve controlled space closure after lower incisor extraction.

Case presentation: A fit and healthy man presented with a Class 1 malocclusion on a Class 1 skeletal base with bimaxillary protrusion, slightly increased vertical proportions, and mild crowding in the upper and lower arches. He was concerned about his 'irregular lower front teeth and inability to clean them'.

Intervention: Lower incisor extraction treated with clear aligner therapy (CAT).

Results: The patient's malocclusion was successfully treated with CAT and the extraction of a lower incisor, achieving satisfactory root parallelism for the teeth adjacent to the extraction space. The patient reported satisfaction with the treatment results.

Conclusion: Power arms can be considered a useful adjunct to CAT for minimising unwanted tipping in lower incisor extraction cases. Further research on more complex cases and a larger sample size is warranted to validate the findings of this case report and explore long-term stability.

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动力臂作为辅助工具用于下门牙拔牙治疗中根的控制：一例报告。

背景：在寻求正畸治疗的患者中，透明矫正器治疗（CAT）已成为一种流行的选择。然而，CAT并不适合某些类型的牙齿运动。本病例报告阐述了一种结合CAT和动力臂的混合入路，在下门牙拔除后实现可控的空间关闭。病例介绍：一名健康的男性，在1级骨基上出现1级错颌，双颌突出，垂直比例轻微增加，上下弓轻度拥挤。他担心自己的“下门牙不整齐，而且无法清洁”。干预：下门牙拔牙采用清除矫正器治疗。结果：该患者的错牙合经CAT和下切牙拔牙治疗成功，拔牙间隙附近的牙根平行度较好。病人对治疗结果表示满意。结论：在下门牙拔牙时，动力臂可以被认为是一种有用的辅助工具，可以最大限度地减少不必要的倾斜。需要对更复杂的病例和更大的样本量进行进一步研究，以验证本病例报告的发现并探索其长期稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Orthodontics DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

2.60

自引率

15.40%

发文量

期刊介绍： The Journal of Orthodontics has an international circulation, publishing papers from throughout the world. The official journal of the British Orthodontic Society, it aims to publish high quality, evidence-based, clinically orientated or clinically relevant original research papers that will underpin evidence based orthodontic care. It particularly welcomes reports on prospective research into different treatment methods and techniques but also systematic reviews, meta-analyses and studies which will stimulate interest in new developments. Regular features include original papers on clinically relevant topics, clinical case reports, reviews of the orthodontic literature, editorials, book reviews, correspondence and other features of interest to the orthodontic community. The Journal is published in full colour throughout.