Three-dimensional imaging using microcomputed tomography for studying tooth macromorphology
Three-dimensional imaging using microcomputed tomography for studying tooth macromorphology
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DOI：
10.14219/jada.archive.2006.0091
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发表时间：
2006-11-01
影响因子：
3.9
通讯作者：
Somma, Francesco
中科院分区：
文献类型：
--
作者：
Plotino, Gianluca;Grande, Nicola M.;Somma, Francesco
背景作者进行了一项研究，以证明潜在的，微型计算机断层扫描（microCT）在牙齿形态分析中的应用。作者选择了5个上颌第一磨牙与第二根管的近中颊（AM）根，5个下颌第一磨牙与近中根具有相当大的曲率和5个单根管的前磨牙复杂的根尖解剖microCT分析。本研究中使用的硬件设备是台式X射线微焦点CT扫描仪（SkyScan 1072，SkyScan bvba，Aartselaar，Belgium）。作者从15颗牙齿中的每一颗获得了三维图像。在三个病例中，MB根管合并成一个根管，而在其他两个磨牙中，根管是分开的。四个下颌磨牙表现出一个单一的根管在近中根，这有一个广泛的，平坦的外观在近远中的维度。在前磨牙中，根管是独立的;然而，根尖三角和分支的根管是明显的，但错综复杂。MicroCT为根管系统的三维非侵入性评估提供了一种可重复的技术。虽然这项技术不适合临床使用，但它可以应用于改善根管和修复治疗中基本程序的临床前培训和分析。
Background. The authors conducted a study to demonstrate potential, applications of microcomputed tomography (microCT) in the analysis of tooth morphology.Methods. The authors selected for microCT analysis five maxillary first molars with a second canal in the mesiobuccal (AM) root, five mandibular first molars with a mesial root possessing a considerable curvature and five single-canal premolars with complicated apical anatomy. The hardware device used in this, study was a desktop X-ray microfocus CT scanner (SkyScan 1072, SkyScan bvba, Aartselaar, Belgium).Results. The authors,obtained a three-dimensional image from each of the 15 teeth. In three cases, the MB canals coalesced into one canal, while in the other two molars the canals were separate. Four of the five mandibular molars exhibited A single canal in the mesial root, which had a broad, flat appearance in a mesiodistal dimension. In the premolar teeth, the canals were independent; however, the apical delta and ramifications of the root canals were obvious, yet intricate.Conclusions. MicroCT offers a reproducible technique for 3-D non-invasive assessment of root canal systems.Clinical Implications. While this technique is not suitable for clinical use, it can be applied to improve preclinical training and analysis of fundamental procedures in endodontic and restorative treatment.