A Novel 3D Volumetric Method of Analyzing Gingival Positional and Dimensional Alterations During Orthodontic Therapy: A Pilot Study.

IF 1.3 4区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Yosuke Tsukiboshi, Jaime Gil, Cristina Sola, Seiko Min, Homayoun H Zadeh
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Abstract

The aim of the present study was to develop a 3D digital image-analysis method to quantitatively assess gingival changes after clear-aligner orthodontic therapy. Using teeth as fixed reference points, 3D image analysis tools have been used to quantify mucosal level changes after specific therapies. This technology has not been applied to orthodontic therapy, primarily because orthodontic tooth movement precludes using teeth as fixed reference points. Rather than superimposing the pre- and posttherapy volumes for the entire dentition, the methodology presented herein superimposed the pre- and post-therapy volumes for individual teeth. The lingual tooth surfaces, which remained unaltered, were used as fixed references. Intraoral scans taken before and after clear-aligner orthodontic therapy were imported for comparison. Volumes were created for each 3D image and were superimposed in a 3D image-analysis software that allowed quantitative measurements. The results demonstrated this technique's ability to measure very small changes in the apicocoronal position of the gingival zenith, as well as alterations of gingival margin thickness, following clear-aligner orthodontic therapy. The present 3D image-analysis method offers a useful tool for investigating the periodontal dimensional and positional changes that accompany orthodontic therapy.
一种新的三维容积法分析正畸治疗期间牙龈位置和尺寸变化:一项初步研究。
本研究的目的是开发一种三维数字图像分析方法来定量评估牙齿矫正治疗后牙龈的变化。使用牙齿作为固定参考点,3D图像分析工具已被用于量化特定治疗后粘膜水平的变化。这项技术尚未应用于正畸治疗,主要是因为正畸牙齿的运动排除了使用牙齿作为固定参考点。而不是叠加治疗前和治疗后的体积为整个牙列,这里提出的方法叠加治疗前和治疗后的体积为个别牙齿。舌牙面保持不变,作为固定参照。输入清洁矫正器正畸治疗前后的口内扫描进行比较。为每个3D图像创建体积,并将其叠加在3D图像分析软件中,以便进行定量测量。结果表明,这项技术的能力,以测量非常小的变化,在尖冠位置的牙龈顶,以及龈缘厚度的改变,在清洁对准器正畸治疗后。目前的三维图像分析方法为研究伴随正畸治疗的牙周尺寸和位置变化提供了一种有用的工具。
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来源期刊
CiteScore
2.90
自引率
6.20%
发文量
113
审稿时长
6-12 weeks
期刊介绍: The International Journal of Periodontics & Restorative Dentistry will publish manuscripts concerned with all aspects of clinical periodontology, restorative dentistry, and implantology. This includes pertinent research as well as clinical methodology (their interdependence and relationship should be addressed where applicable); proceedings of relevant symposia or conferences; and quality review papers. Original manuscripts are considered for publication on the condition that they have not been published or submitted for publication elsewhere.
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