• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dental Press Journal of Orthodontics >Correlation between tooth size-arch length discrepancy and interradicular distances measured on CBCT and panoramic radiograph: an evaluation for miniscrew insertion
【24h】

Correlation between tooth size-arch length discrepancy and interradicular distances measured on CBCT and panoramic radiograph: an evaluation for miniscrew insertion

机译：在CBCT和全景X射线照片上测得的牙齿大小-牙弓长度差异与根际距离之间的相关性：微螺钉插入的评估

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Introduction: The selection of appropriate sites for miniscrew insertion is critical for clinical success. Objectives: The aim of the present study was to evaluate how interradicular spaces measured on panoramic radiograph compare with Cone-Beam Computed Tomography (CBCT), and how crowding can influence the presence of available space for miniscrew insertion, in order to define a new “safe zones” map. Methods: A total of 80 pre-treatment panoramic radiographs and 80 CBCT scans with corresponding digital models were selected from the archives of the department of Dentistry, Aarhus University. Crowding was measured on digital models, while interradicular spaces mesial to the second molars were measured on panoramic radiographs and CBCTs. For panoramic radiographs, a magnification factor was calculated using tooth widths measured on digital models. Statistical analyses were performed to investigate the correlation between the amount of crowding and the available interradicular space. Visual maps showing the amount of interradicular spaces measured were drawn. Results: The most convenient interradicular spaces are those between the second molar and the first premolar in the mandible, and between the central incisors in the maxilla. However, some spaces were revealed to be influenced by crowding. Conclusions: Calibration of panoramic radiographs is of utmost importance. Generally, panoramic radiographs underestimate the available space. Preliminary assessment of miniscrew insertion feasibility and the related selection of required radiographs can be facilitated using the new “safe zone” maps presented in this article.
机译：简介：选择合适的微螺钉插入部位对于临床成功至关重要。目的：本研究的目的是评估全景射线照相上的椎间间隙与锥形束计算机断层扫描（CBCT）的比较，以及拥挤如何影响微螺钉插入的可用空间的存在，以定义新的“安全区”地图。方法：从奥尔胡斯大学牙科系的档案中选择了总共80幅预处理全景X射线照片和80幅具有相应数字模型的CBCT扫描。在数字模型上测量了拥挤程度，而在第二张磨牙上接近第二根磨牙的椎间间隙则在全景X射线照片和CBCT上进行了测量。对于全景X射线照片，使用在数字模型上测量的牙齿宽度来计算放大倍数。进行统计分析以调查拥挤量与可用的根际间隙之间的相关性。绘制显示测得的椎间间隙的量的视觉图。结果：最方便的根际间隙是在下颌骨的第二磨​​牙和第一个磨牙之间，以及上颌骨的中切牙之间。然而，一些空间被发现受拥挤影响。结论：全景X射线照片的校准至关重要。通常，全景X光片会低估可用空间。使用本文介绍的新“安全区”图，可以方便地进行微螺钉插入可行性的初步评估以及所需射线照片的相关选择。

著录项

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号