微计算机断层扫描评估热成型后对准器厚度和间隙宽度的总体趋势，涉及六种商业透明对准器:一项体外研究。

IF 1.9 3区医学 Q1 Dentistry

Korean Journal of Orthodontics Pub Date : 2021-03-25 DOI:10.4041/kjod.2021.51.2.135

Mario Palone, Mattia Longo, Niki Arveda, Michele Nacucchi, Fabio De Pascalis, Giorgio Alfredo Spedicato, Giuseppe Siciliani, Luca Lombardo

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引用次数: 11

摘要

目的:评估热成型对六种相同标称厚度的矫直器厚度和间隙宽度的影响。方法:采用六种不同牌号的被动上牙矫直器，分别应用于一种印刷铸造。每个样本都用高分辨率显微计算机断层扫描进行评估。为了研究矫正器的厚度和间隙宽度，进行了二维(2D)分析，评估了以下变量的影响:牙齿类型(中切牙、犬齿和第一磨牙)、二维参考点和矫正器类型。采用方差分析和Tukey事后检验对资料进行分析比较(p < 0.05)。结果:牙型、牙区、矫正器类型对牙间隙宽度和矫正器厚度均有影响。矫正器厚度仅在F22保持适度稳定。结论:所有热成型样品在前牙、牙龈和冠状中心的对准器厚度和间隙宽度均小于后牙和咬合面。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Micro-computed tomography evaluation of general trends in aligner thickness and gap width after thermoforming procedures involving six commercial clear aligners: An in vitro study.

查看原文本刊更多论文

Micro-computed tomography evaluation of general trends in aligner thickness and gap width after thermoforming procedures involving six commercial clear aligners: An in vitro study.

Objective: To assess the effects of thermoforming on aligner thickness and gap width in six aligner systems with the same nominal thickness.

Methods: Six passive upper aligners of different brands were adapted to a single printed cast. Each sample was evaluated with high-resolution micro-computed tomography. To investigate aligner thickness and gap width, two-dimensional (2D) analysis was conducted assessing the effects of the following variables: tooth type (central incisor, canine, and first molar), 2D reference points, and aligner type. Data were analyzed and compared using analysis of variance and Tukey's post-hoc tests (p < 0.05).

Results: Tooth type, dental region, and aligner type affected both the gap width and aligner thickness. The aligner thickness remained moderately stable across the arch only in the F22.

Conclusions: All thermoformed samples displayed smaller aligner thickness and gap width at anterior teeth and both gingival and coronal centers than at posterior teeth and occlusal surfaces.

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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.