Different treatment strategies for monozygotic twins with Class II division 1 malocclusion: 10-year follow-up study

IF 1.8 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

International Orthodontics Pub Date : 2025-04-24 DOI:10.1016/j.ortho.2025.101009

Shichao Yue , Minjia Zhu , Xianju Xie , Zixiang Dai , Kan Yu , Xiaoxia Che , Ye Chen , Yuxing Bai , Ke Zhang

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引用次数: 0

Abstract

Background

Early-stage growth modification has been demonstrated effective in treating prepubertal patients with Class II division 1 malocclusion. Since monozygotic twins are genetically identical, environmental factors, including oral habits and treatment strategies, may contribute to different treatment outcomes. To date, few reported comparisons of different treatment strategies in monozygotic twins with Class II division 1 malocclusion exist.

Case description

In this case report, we compare the effects of different functional appliances and extraction strategies in a pair of prepubertal monozygotic twins. Different compliance and treatment protocols may have different effects on their early changes in facial profile. Customized treatment plans are necessary for optimal treatment outcomes. Both twins achieved favourable improvements in facial profile, and their long-term stability of functional occlusion was also maintained after a ten-year follow-up.

Practical implications

With the outcome of the case, we acknowledged that functional appliance therapy can affect the potentiality of mandibular growth. Individualized protocols should be approached aside from different functional appliances.

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同卵双胞胎II类1分错畸形的不同治疗策略：10年随访研究

早期生长修饰已被证明对治疗青春期前II类1分错的患者有效。由于同卵双胞胎在基因上是相同的，环境因素，包括口腔习惯和治疗策略，可能导致不同的治疗结果。迄今为止，很少有报道比较不同治疗策略的同卵双胞胎与II类1分错的存在。在本病例报告中，我们比较了一对青春期前的同卵双胞胎中不同功能器具和拔除策略的效果。不同的依从性和治疗方案可能对面部轮廓的早期变化有不同的影响。个性化的治疗方案是获得最佳治疗效果的必要条件。这对双胞胎的面部轮廓都得到了良好的改善，经过十年的随访，他们的功能性闭塞也保持了长期的稳定性。实际意义通过本病例的结果，我们认识到功能矫治器治疗可以影响下颌生长的潜力。除了不同的功能设备外，还应该考虑个性化的方案。

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

International Orthodontics DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

2.50

自引率

13.30%

发文量

审稿时长

26 days

期刊介绍： Une revue de référence dans le domaine de orthodontie et des disciplines frontières Your reference in dentofacial orthopedics International Orthodontics adresse aux orthodontistes, aux dentistes, aux stomatologistes, aux chirurgiens maxillo-faciaux et aux plasticiens de la face, ainsi quà leurs assistant(e)s. International Orthodontics is addressed to orthodontists, dentists, stomatologists, maxillofacial surgeons and facial plastic surgeons, as well as their assistants.