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首页> 外文学位 >Tooth length measurement accuracy and reliability with cone-beam CT and panoramic radiography.
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Tooth length measurement accuracy and reliability with cone-beam CT and panoramic radiography.

机译：借助锥形束CT和全景射线照相术，可以测量出牙长的准确性和可靠性。

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摘要

This study assessed the accuracy and reliability of tooth length measurements through axial, coronal and sagittal serial slices of CBCT volumes; conventional panoramic radiographs; and CBCT panoramic reconstructions to that of a digital caliper gold standard. Samples consisted of maxillary premolars collected from patients requiring extractions for routine orthodontic treatment. Extracted teeth were measured directly with digital calipers and images were digitally measured in Dolphin 3D software. Analysis of CBCT serial slices resulted in highly accurate and reliable tooth length measurements for all slice orientations compared to the gold standard. Conventional panoramic radiographs were relatively inaccurate, overestimating tooth lengths by 29%, while CBCT panoramic reconstructions underestimated lengths by 4%. CBCT serial slice volume analysis provides clinicians with greater measurement confidence, while panoramic radiographs, produced either by conventional means or reconstructed from 3D volumes should be considered less accurate and reliable for the detection of mild root resorption.
机译：这项研究通过CBCT体积的轴向，冠状和矢状连续切片评估了牙齿长度测量的准确性和可靠性。常规全景射线照相；和CBCT全景重建到数字卡尺黄金标准。样本由上颌前磨牙组成，这些上颌前磨牙是从需要进行常规正畸治疗的患者身上收集的。使用数字卡尺直接测量拔出的牙齿，并在Dolphin 3D软件中数字测量图像。与黄金标准相比，对CBCT系列切片的分析得出了对于所有切片方向的高度准确而可靠的齿长测量结果。常规的全景X线照片相对不准确，高估了牙齿长度29％，而CBCT全景重建低估了牙齿长度4％。 CBCT连续切片体积分析为临床医生提供了更大的测量可信度，而对于常规的方法或从3D体积重建的全景X射线照片，对于轻度牙根吸收的检测应认为准确度和可靠性较低。

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  • 作者

    Rosenblatt, Mark Ross.;

  • 作者单位

    University of Alberta (Canada).;

  • 授予单位 University of Alberta (Canada).;
  • 学科 Health Sciences Dentistry.;Health Sciences Radiology.
  • 学位 M.Sc.
  • 年度 2010
  • 页码 140 p.
  • 总页数 140
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 老年病学;
  • 关键词

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