Virtual endodontics: Three-dimensional tooth volume representations and their pulp cavity access
Virtual endodontics: Three-dimensional tooth volume representations and their pulp cavity access
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DOI：
10.1097/00004770-200208000-00009
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发表时间：
2002-08-01
影响因子：
4.2
通讯作者：
Pitas, I
中科院分区：
文献类型：
--
作者：
Lyroudia, K;Mikrogeorgis, G;Pitas, I
本研究的目的是将数字三维图像处理和虚拟现实技术在牙髓病学中的应用。每个牙齿类别中的 2 颗牙齿（总共 16 颗牙齿）的三维体积表示已被重建。所有牙齿均嵌入聚酯树脂中，并使用特殊的切片机从每颗牙齿上获取 0.75 毫米厚的连续横截面。每个切片都在立体显微镜下进行研究，并使用摄像机直接将其显微图像数字化。从每个切片中分割出硬牙组织的表面。通过使用适当的数字图像处理技术，对牙齿切片序列进行半自动对准和帧插值。该项目实现了每颗牙齿的三维体积表示，以生成最终的三维牙齿模型，并在该模型上进行了牙髓腔的虚拟访问。在某些情况下，三维牙齿体积表示和虚拟牙齿“钻孔”可以作为完美的教育工具。
The purpose of this study was the application of both digital three-dimensional image processing and virtual reality techniques in endodontics. Three-dimensional volume representations of 2 teeth from each tooth category, 16 teeth in total, have been reconstructed. All teeth were embedded in polyester resin, and serial cross-sections 0.75-mm thick were taken from each tooth by using a special microtome. Each section was studied under a stereoscopic microscope, and its microscopic image was directly digitized using a video-camera. The surfaces of hard dental tissues were segmented from each section. Semiautomatic alignment and frame interpolation were performed on the sequence of tooth sections by using appropriate digital image processing techniques. Three-dimensional volume representations from each tooth were achieved in this project to produce the final three-dimensional teeth models, on which virtual accesses of pulp cavities have been performed. Three-dimensional teeth volume representations and virtual tooth "drilling" could serve as perfect educational tools under certain circumstances.