Thompson S A, al-Omari A O, Dummer P M
Department of Conservative Dentistry, Dental School, University of Wales College of Medicine, Cardiff, United Kingdom.
Int Endod J. 1995 Mar;28(2):61-7. doi: 10.1111/j.1365-2591.1995.tb00160.x.
The aim of this paper is to describe an in vitro method which provides clear and accurate details of root canal shape. The method utilizes the technique of contact microradiography to produce high resolution, two-dimensional, real-size images of canals in a longitudinal plane. Specimens can be accurately rotated through 90 degrees allowing images to be produced in a bucco-lingual and mesio-distal direction. The method is simple, relatively rapid and can process large numbers of teeth without the need for complicated and expensive mounting blocks or film holders. The technique can be used to produce pre- and post-operative images of canal shape which can be superimposed to delineate the dentine removed during canal preparation. The method is thus suitable for the evaluation of the shaping ability of endodontic instruments and preparation techniques.
本文旨在描述一种体外方法，该方法能提供根管形态清晰准确的细节。该方法利用接触式显微放射摄影技术，在纵平面上生成根管的高分辨率、二维、实际尺寸图像。标本可精确旋转90度，从而能够在颊舌向和近远中向生成图像。该方法简单、相对快速，且无需复杂昂贵的固定块或胶片夹就能处理大量牙齿。该技术可用于生成根管形态的术前和术后图像，这些图像可叠加以描绘根管预备过程中去除的牙本质。因此，该方法适用于评估根管治疗器械的成形能力和预备技术。
