Three-dimensional assessment of nasal changes after maxillary advancement with impaction using stereophotogrammetry.

IF 1.9 3区医学 Q1 Dentistry

Korean Journal of Orthodontics Pub Date : 2020-07-25 DOI:10.4041/kjod.2020.50.4.249

Gokhan Coban, Ibrahim Yavuz, Busra Karadas, Ahmet Emin Demirbas

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引用次数: 0

Abstract

Objective: To evaluate the changes in the nose in three dimensions after Le Fort I osteotomy in patients with skeletal Class III malocclusion.

Methods: The subjects were 40 adult patients (20 females and 20 males; mean age, 20.3 ± 3.0 years; range, 17.0 to 31.1 years) who underwent one-piece Le Fort I osteotomy with maxillary advancement and impaction treatment for maxillary hypoplasia. The mean maxillary advancement was 4.56 ± 1.34 mm, and the mean maxillary impaction was 2.03 ± 1.04 mm. Stereophotogrammetry was used to acquire three-dimensional images before and at least 6 months after surgery.

Results: Alare (Al) and alare curvature (Ac) points had moved vertically and anterolaterally postoperatively. A significant increase was observed in the nasal ala width and alar base width, and no changes were noted in the columellar length, nasolabial angle, and nasal area. There was a significant relationship between maxillary impaction and nasal ala width and horizontal and sagittal positions of the bilateral Al and Ac. The only relationship found was between maxillary advancement and postoperative sagittal location of the subnasale and pronasale.

Conclusions: Nasal soft tissues were highly affected by the vertical movement of the maxilla; however, the soft tissue responses were individual-dependent.

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使用立体摄影测量法对上颌骨前移后的鼻腔变化进行三维评估。

目的评估骨骼Ⅲ类错颌畸形患者接受 Le Fort I 型截骨术后鼻部的三维变化：受试者为 40 名成年患者（20 名女性和 20 名男性；平均年龄为 20.3 ± 3.0 岁；年龄范围为 17.0 至 31.1 岁），他们因上颌骨发育不良而接受了单件式 Le Fort I 截骨术，并进行了上颌骨前移和内陷治疗。上颌前突的平均值为（4.56 ± 1.34）毫米，上颌内陷的平均值为（2.03 ± 1.04）毫米。手术前和手术后至少 6 个月使用立体摄影测量法获取三维图像：结果：术后，Alare（Al）和alare curvature（Ac）点在垂直方向和前侧移动。鼻翼宽度和鼻翼基底宽度明显增加，而鼻翼长度、鼻唇角和鼻翼面积没有变化。上颌骨内陷与鼻甲宽度、双侧 Al 和 Ac 的水平位置和矢状位置之间存在明显关系。唯一发现的关系是上颌前突与术后鼻下和前鼻的矢状位置：结论：鼻腔软组织受上颌骨垂直移动的影响很大；但软组织的反应是因人而异的。

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

Korean Journal of Orthodontics Dentistry-Orthodontics

CiteScore

2.60

自引率

10.50%

发文量

审稿时长

3 months

期刊介绍： The Korean Journal of Orthodontics (KJO) is an international, open access, peer reviewed journal published in January, March, May, July, September, and November each year. It was first launched in 1970 and, as the official scientific publication of Korean Association of Orthodontists, KJO aims to publish high quality clinical and scientific original research papers in all areas related to orthodontics and dentofacial orthopedics. Specifically, its interest focuses on evidence-based investigations of contemporary diagnostic procedures and treatment techniques, expanding to significant clinical reports of diverse treatment approaches. The scope of KJO covers all areas of orthodontics and dentofacial orthopedics including successful diagnostic procedures and treatment planning, growth and development of the face and its clinical implications, appliance designs, biomechanics, TMJ disorders and adult treatment. Specifically, its latest interest focuses on skeletal anchorage devices, orthodontic appliance and biomaterials, 3 dimensional imaging techniques utilized for dentofacial diagnosis and treatment planning, and orthognathic surgery to correct skeletal disharmony in association of orthodontic treatment.