Patel S, Dawood A, Whaites E, Pitt Ford T
Endodontic Postgraduate Unit, King's College London Dental Institute, London, UK.
Int Endod J. 2009 Jun;42(6):447-62. doi: 10.1111/j.1365-2591.2008.01530.x. Epub 2009 Mar 2.
Conventional radiographs used for the management of endodontic problems yield limited information because of the two-dimensional nature of images produced, geometric distortion and anatomical noise. These factors often act in combination. This review paper assesses the limitations of periapical radiographs and seeks to clarify three-dimensional imaging techniques that have been suggested as adjuncts to conventional radiographs. These include tuned aperture computed tomography, magnetic resonance imaging, ultrasound, computed tomography and cone beam computed tomography (CBCT). Of these techniques, CBCT appears to be an effective and safe way to overcome some of the problems associated with conventional radiographs.
用于牙髓病问题处理的传统X线片由于所产生图像的二维特性、几何失真和解剖噪声而提供的信息有限。这些因素常常共同起作用。这篇综述文章评估了根尖片的局限性，并试图阐明已被建议作为传统X线片辅助手段的三维成像技术。这些技术包括调谐孔径计算机断层扫描、磁共振成像、超声、计算机断层扫描和锥形束计算机断层扫描（CBCT）。在这些技术中，CBCT似乎是克服一些与传统X线片相关问题的有效且安全的方法。
