The coordination of bimaxillary alveolar arch widths in subjects with normal occlusion or posterior crossbite: A CBCT retrospective study

IF 2.4 3区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Orthodontics & Craniofacial Research Pub Date : 2024-04-05 DOI:10.1111/ocr.12785

Liangyu Luo, Qing Liu, Yihua Pan, Yidan Song, Jiaojiao Li, Lanxin Cheng, Zhihe Zhao, Jun Liu

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引用次数: 0

Abstract

Objectives

To propose a method for evaluating the coordination of maxillomandibular alveolar arch in transverse dimension with cone-beam computed tomography (CBCT) and to apply this method to subjects with normal occlusion at different dentition stages or transverse discrepancy.

Materials and Methods

Digital data of 130 patients with normal occlusion at different dentition stages or transverse discrepancy were collected for three-dimensional reconstruction. The patients with normal occlusion were divided into Group 1 (>16 years) and Group 2 (≤16 years) based on their age. Adult patients with posterior crossbite were divided into the Group 3. According to the proposed method, the average alveolar arch coordination angle (AACA) and other parameters were analysed in each group. Group 1 was considered as the control group and compared with Group 2 and Group 3.

Results

Significant differences were observed in the maxillary posterior segment width among patients with normal occlusion. Group 3 demonstrated increased AACA and mandibular alveolar arch width compared with the normal occlusion group. Pearson correlation analysis indicated a positive relationship between maxillomandibular alveolar arch widths in the normal occlusion groups, with a strong correlation between AACA and the disparity in maxillomandibular widths.

Conclusion

Adults with normal occlusion exhibit significantly wider maxillary posterior alveolar arches than adolescents, with no marked difference in mandibular widths. The posterior crossbite group showed broader mandibular alveolar arches. There was a strong correlation between AACA and the difference in maxillomandibular widths. This study's method shows potential value for orthodontic transverse diagnosis.

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正常咬合或后交叉咬合受试者双颌牙槽弓宽度的协调：CBCT 回顾性研究

材料与方法收集了130例不同牙列阶段或横向差异的正常咬合患者的数字化数据，进行三维重建。根据年龄将咬合正常的患者分为第一组（>16 岁）和第二组（≤16 岁）。后交叉咬合的成年患者被分为第三组。根据建议的方法，分析各组的平均牙槽弓协调角（AACA）和其他参数。结果在咬合正常的患者中，上颌后段宽度有显著差异。与正常咬合组相比，第 3 组的 AACA 和下颌牙槽弓宽度有所增加。皮尔逊相关分析表明，咬合正常组的上颌下牙槽弓宽度之间存在正相关关系，AACA与上颌下牙槽弓宽度的差异之间存在很强的相关性。后交叉咬合组的下颌牙槽弓更宽。AACA与上颌下颌宽度的差异之间存在很强的相关性。这项研究的方法显示了正畸横向诊断的潜在价值。

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

Orthodontics & Craniofacial Research 医学-牙科与口腔外科

CiteScore

5.30

自引率

3.20%

发文量

审稿时长

>12 weeks

期刊介绍： Orthodontics & Craniofacial Research - Genes, Growth and Development is published to serve its readers as an international forum for the presentation and critical discussion of issues pertinent to the advancement of the specialty of orthodontics and the evidence-based knowledge of craniofacial growth and development. This forum is based on scientifically supported information, but also includes minority and conflicting opinions. The objective of the journal is to facilitate effective communication between the research community and practicing clinicians. Original papers of high scientific quality that report the findings of clinical trials, clinical epidemiology, and novel therapeutic or diagnostic approaches are appropriate submissions. Similarly, we welcome papers in genetics, developmental biology, syndromology, surgery, speech and hearing, and other biomedical disciplines related to clinical orthodontics and normal and abnormal craniofacial growth and development. In addition to original and basic research, the journal publishes concise reviews, case reports of substantial value, invited essays, letters, and announcements. The journal is published quarterly. The review of submitted papers will be coordinated by the editor and members of the editorial board. It is policy to review manuscripts within 3 to 4 weeks of receipt and to publish within 3 to 6 months of acceptance.