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首页> 外文学位 >Comparison between tooth mesiodistal angulation measurements from constructed panoramic images and three-dimensional volumetric images.
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Comparison between tooth mesiodistal angulation measurements from constructed panoramic images and three-dimensional volumetric images.

机译：从构造的全景图像和三维立体图像比较牙齿近中颌角测量结果。

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摘要

The purpose of this study was to evaluate if there are differences between mesiodistal angulations measurements for all the teeth in constructed 2D panoramic images as compared to 3D measurements. Pre-treatment 3D DICOM data was obtained from the University of Southern California's patient database and mesiodistal angulation measurements from the constructed 2D panoramic images were compared to 3D coordinate system measurements (gold standard). Thirty three cases were chosen based on the specified inclusion and exclusion criteria. Results indicated that there was a relative trend in the differences in the tooth mesiodistal angulation measurements between the 3D and 2D measurements (p.007). The maxillary central incisors, canine, and first premolar showed significant differences in the measurements, while the lateral incisors, second premolars, and molars did not show significant differences. On the other hand, the mandibular incisors, canine, and premolars did not show significant differences in the tooth mesiodistal angulations, while the molars did show a significant difference in the measurements. From this study, it can be concluded that there are significant differences for some teeth between angulation measurements obtained from the 2D constructed panoramic images and those directly obtained from 3D measurements.
机译：这项研究的目的是评估与2D 3D测量结果相比，在构造的2D全景图像中所有牙齿的近中角测量值之间是否存在差异。从南加州大学的患者数据库中获得治疗前的3D DICOM数据，并将所构建的2D全景图像的近中角测量结果与3D坐标系测量结果（黄金标准）进行比较。根据指定的纳入和排除标准选择了33个案例。结果表明，在3D和2D测量之间，牙近颌角测量的差异存在相对趋势（p <.007）。上颌中切牙，犬齿和第一前磨牙的测量值存在显着差异，而侧切牙，第二前磨牙和磨牙的测量值无显着差异。另一方面，下颌切牙，犬齿和前磨牙在牙近中角的角度上没有显示出显着差异，而磨牙在测量上却显示出显着的差异。从这项研究可以得出结论，从2D构造的全景图像获得的角度测量结果与直接从3D测量获得的角度测量结果之间，某些牙齿之间存在显着差异。

著录项

  • 作者

    Sakai, Nicole.;

  • 作者单位

    University of Southern California.;

  • 授予单位 University of Southern California.;
  • 学科 Health Sciences Dentistry.
  • 学位 M.S.
  • 年度 2011
  • 页码 72 p.
  • 总页数 72
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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