基于腭结构的三维数字模型叠加在前磨牙拔除后最大前牙后缩患者中的应用验证。

IF 1.9 3区 医学 Q1 Dentistry
Jing Liu, Kyong-Min Koh, Sung-Hwan Choi, Ji-Hoi Kim, Jung-Yul Cha
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引用次数: 1

摘要

目的:本研究旨在评估基于参考区域的前磨牙拔牙后需要前牙内收的患者测量牙齿移动的数字模式的叠加精度。方法:将40例双侧上颌第一前磨牙拔牙患者分为中伸(< 7.0 mm)组和最大伸(≥7.0 mm)组。以第3或第4 ruga为参考点,采用头形叠加和三维(3D)数字叠加测量中切牙位移。采用Wilcoxon符号秩检验和线性回归分析检验两种测量方法之间的差异和关系的显著性。结果:中牵组中切牙的前后位移值在三维数字测量与头侧测量之间无显著差异。然而,在最大牵张组中,采用第3 ruga叠加法和头侧测量法评估的前后位位移之间存在显著差异(p < 0.05)。结论:本研究表明,在临床上,在评估需要适度后缩的患者的牙齿运动时,3D数字叠加与头位测量叠加一样可靠。然而,对于需要最大内收的患者,应仔细检查参考点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Validation of three-dimensional digital model superimpositions based on palatal structures in patients with maximum anterior tooth retraction following premolar extraction.

Validation of three-dimensional digital model superimpositions based on palatal structures in patients with maximum anterior tooth retraction following premolar extraction.

Validation of three-dimensional digital model superimpositions based on palatal structures in patients with maximum anterior tooth retraction following premolar extraction.

Validation of three-dimensional digital model superimpositions based on palatal structures in patients with maximum anterior tooth retraction following premolar extraction.

Objective: This study aimed to evaluate the superimposition accuracy of digital modes for measuring tooth movement in patients requiring anterior retraction after premolar extraction based on the proposed reference regions.

Methods: Forty patients treated with bilateral maxillary first premolar extraction were divided into two groups: moderate retraction (< 7.0 mm) and maximum retraction (≥ 7.0 mm). Central incisor displacement was measured using cephalometric superimpositions and three-dimensional (3D) digital superimpositions with the 3rd or 4th ruga as the reference point. The Wilcoxon signed-rank test and linear regression analyses were performed to test the significance of the differences and relationships between the two measurement techniques.

Results: In the moderate retraction group, the central incisor anteroposterior displacement values did not differ significantly between 3D digital and cephalometric superimpositions. However, in the maximum-retraction group, significant differences were observed between the anteroposterior displacement evaluated by the 3rd ruga superimposition and cephalometric methods (p < 0.05).

Conclusions: This study demonstrated that 3D digital superimpositions were clinically as reliable as cephalometric superimpositions in assessing tooth movements in patients requiring moderate retraction. However, the reference point should be carefully examined in patients who require maximum retraction.

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来源期刊
Korean Journal of Orthodontics
Korean Journal of Orthodontics Dentistry-Orthodontics
CiteScore
2.60
自引率
10.50%
发文量
48
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.
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