使用数字扫描评估三维孟荪球的完整数字工作流程

IF 1.7 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Cheng Wen, Huan Huan Wang, Huo Jia Muhetaer, Fan Xie, Rui Han, Jin Cheng Wu
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引用次数: 0

摘要

作为Spee曲线和Wilson曲线的结合,Monson球反映了牙齿在三维(3D)空间中的排列。对于咬合分析,Monson球可以为义肢重建或正畸治疗提供重要参考。本研究的目的是通过一个完整的数字工作流程,使用口腔内扫描模型和定制软件来生成和研究三维孟荪球。材料与方法招募64名正常咬合的中国成年人(男32名,女32名),使用数字口内扫描仪获得口腔内扫描模型。利用逆向工程软件对扫描模型上的26个地标进行数字化处理。通过自定义软件程序,利用最小二乘法将一个球体拟合到顶点,生成了蒙森球,并对其进行了评估。采用Mann-Whitney’s U检验,检验男女之间蒙森球半径的差异。采用单样本t检验检验差异有统计学意义(α = 0.05)。结果采用数字扫描与定制软件相结合的方法可以生成蒙森球。Monson球的平均半径为77.35±13.38 mm,低于Monson提出的理论值。此外,男性和女性在Monson's球半径上存在显著差异(p < 0.001)。结论本研究探索了一种新的基于完整数字工作流的三维蒙森球生成的最佳拟合算法。中国成年人的孟荪球半径低于孟荪提出的4英寸的经典值。男性和女性之间存在显著差异。本研究发现的Monson's sphere值可作为义肢重建和正畸治疗的参考,并可用于改善牙科治疗效果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Complete Digital Workflow for Evaluation of the Three-Dimensional Monson's Sphere Using Digital Scanning

Complete Digital Workflow for Evaluation of the Three-Dimensional Monson's Sphere Using Digital Scanning

Background

As a combination of curve of Spee and curve of Wilson, the Monson sphere reflects the arrangement of teeth in three-dimensional (3D) space. For occlusal analysis, the Monson sphere can provide an important reference for prosthetic reconstructions or orthodontic treatments.

Objectives

The purpose of this study was to generate and investigate the 3-D Monson sphere through a complete digital workflow with intraoral scanning models and custom software.

Material and Methods

Sixty-four Chinese adults (32 males and 32 females) with individual normal occlusion were recruited, and their intraoral scanning models were obtained using a digital intraoral scanner. Twenty-six landmarks on the scanning models were digitized using a reverse engineering software. Monson's sphere was generated and evaluated by fitting a sphere to the cusp tips using a least-squares method by means of custom software program. Mann–Whitney's U test was performed to test the radius difference of Monson's sphere between males and females. One-sample t-test was used to test the statistical significance (α = 0.05).

Results

Monson's sphere could be generated by means of digital scanning combined with customed software. The mean radius of Monson's sphere was 77.35 ± 13.38 mm, which was lower than the theoretical value proposed by Monson. Furthermore, there were significant differences between males and females in Monson's sphere radius (p < 0.001).

Conclusions

This study explores a new best-fit algorithm for generating 3-D Monson's sphere by complete digital workflow. The radius of Monson's sphere in Chinese adults was lower than the classical value of four-inch proposed by Monson. There was a significant difference between males and females. Monson's sphere value found in this study could be used as a reference for prosthetic reconstruction and orthodontic treatment and be applied to improve dental treatment results.

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来源期刊
Clinical and Experimental Dental Research
Clinical and Experimental Dental Research DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
3.30
自引率
5.60%
发文量
165
审稿时长
26 weeks
期刊介绍: Clinical and Experimental Dental Research aims to provide open access peer-reviewed publications of high scientific quality representing original clinical, diagnostic or experimental work within all disciplines and fields of oral medicine and dentistry. The scope of Clinical and Experimental Dental Research comprises original research material on the anatomy, physiology and pathology of oro-facial, oro-pharyngeal and maxillofacial tissues, and functions and dysfunctions within the stomatognathic system, and the epidemiology, aetiology, prevention, diagnosis, prognosis and therapy of diseases and conditions that have an effect on the homeostasis of the mouth, jaws, and closely associated structures, as well as the healing and regeneration and the clinical aspects of replacement of hard and soft tissues with biomaterials, and the rehabilitation of stomatognathic functions. Studies that bring new knowledge on how to advance health on the individual or public health levels, including interactions between oral and general health and ill-health are welcome.
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