Nielsen R B, Alyassin A M, Peters D D, Carnes D L, Lancaster J
Department of Endodontics, University of Texas Health Science Center at San Antonio 78256-2032, USA.
J Endod. 1995 Nov;21(11):561-8. doi: 10.1016/S0099-2399(06)80986-6.
This study evaluated the value of microcomputed tomography (MCT) for use in endodontic research. Four periodontally involved highly calcified maxillary first molars were extracted and then scanned for evaluation by a MCT system. The teeth were then instrumented, and 2 of the 4 obturated before rescanning for comparison evaluation. Several capabilities of the MCT to advance endodontic research significantly were observed: the ability of the MCT to present accurately the external and internal morphologies of the tooth without tooth destruction; the possibility of showing changes over time in surface areas and volumes of tissues; the ability to assess area and volume changes after instrumentation or obturation; and the capability of evaluating canal transportation following instrumentation or instrumentation and obturation. The tremendous potential of this scientific tool was discussed.
本研究评估了微型计算机断层扫描（MCT）在牙髓病学研究中的应用价值。拔除了四颗牙周受累的高度钙化上颌第一磨牙，然后用MCT系统进行扫描以进行评估。随后对这些牙齿进行根管预备，其中4颗中有2颗在再次扫描以进行对比评估之前进行了充填。观察到MCT在显著推进牙髓病学研究方面的几种能力：MCT能够在不破坏牙齿的情况下准确呈现牙齿的外部和内部形态；能够显示组织表面积和体积随时间的变化；能够评估根管预备或充填后面积和体积的变化；以及能够评估根管预备或根管预备及充填后的根管偏移。讨论了这种科学工具的巨大潜力。
