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首页> 外文期刊>The Journal of Prosthetic Dentistry >Evaluation of the marginal fit of CAD-CAM zirconia copings: Comparison of 2D and 3D measurement methods
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Evaluation of the marginal fit of CAD-CAM zirconia copings: Comparison of 2D and 3D measurement methods

机译：CAD-CAM氧化锆应答的边际拟合评价：2D和3D测量方法的比较

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Abstract Purpose The purpose of this in?vitro study was to compare the marginal fit of zirconia copings by using 2 different measurement methods: a triple optical scan method and a silicone replica method. Material and methods Sixty zirconia copings fabricated by computer-aided design and computer-aided manufacture (CAD-CAM) systems were studied for the marginal fit. For the replica method, the thickness of the light-body silicone layer of the discrepancy was assessed using light microscopy and image analysis software. The triple-scan optical method was performed to obtain a digital three-dimensional map of the marginal fit and analyzed marginal fit measurement values. For each method, the reliability of the measurement was tested, and a nonparametric analysis was then performed to compare the marginal fit values as measured by the 2 evaluation methods (α=.05). Results Intraclass correlation coefficients and repeatability coefficients revealed good repeatability for both of the evaluation methods. However, the triple-scan method produced a smaller marginal fit than the replica method ( P Conclusions Although both methods showed good repeatability, the triple-scan method was more reliable.
机译：摘要目的这在体外研究中的目的是通过使用2种不同的测量方法比较氧化锆试作的边缘拟合：三重光学扫描方法和硅胶复制方法。通过计算机辅助设计和计算机辅助制造（CAD-CAM）系统制造的材料和方法六十氧化锆试作用于边际适合。对于复制方法，使用光学显微镜和图像分析软件评估差异的光体硅树脂层的厚度。进行三扫描光学方法以获得边缘拟合的数字三维图谱和分析的边缘拟合测量值。对于每种方法，测试测量的可靠性，然后进行非参数分析以比较由2评价方法（α= .05）测量的边际拟合值。结果脑内相关系数和可重复系数显示出两种评估方法的良好重复性。然而，三扫描方法产生比复制方法更小的边缘配合（尽管两种方法都显示出良好的重复性，但三扫描方法更可靠。

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    Philippe Boitelle; Laurent Tapie; Bernardin Mawussi; Olivier Fromentin;

  • 作者单位

    Prosthodontic Department Faculty of Dentistry University Lille Nord de France Lille University;

    Department of Biomaterials (URB2i–EA 4462) Faculty of Dentistry Paris Descartes University;

    Professor and Senior Lecturer Department of Biomaterials (URB2i–EA 4462) Faculty of Dentistry;

    Professor and Senior Lecturer Prosthodontic Department Faculty of Dentistry Paris Diderot;

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  • 正文语种 eng
  • 中图分类 口腔科学;
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