Palomo Leena, Palomo J Martin
Department of Periodontics, Case School of Dental Medicine, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA.
Dent Clin North Am. 2009 Oct;53(4):717-27, vi-vii. doi: 10.1016/j.cden.2009.07.001.
Three-dimensional imaging offers many advantages in making diagnoses and planning treatment. This article focuses on cone beam CT (CBCT) for making diagnoses and planning treatment in trauma-related cases. CBCT equipment is smaller and less expensive than traditional medical CT equipment and is tailored to address challenges specific to the dentoalveolar environment. Like medical CT, CBCT offers a three-dimensional view that conventional two-dimensional dental radiography fails to provide. CBCT combines the strengths of medical CT with those of conventional dental radiography to accommodate unique diagnostic and treatment-planning applications that have particular utility in dentoalveolar trauma cases. CBCT is useful, for example, in identifying tooth fractures relative to surrounding alveolar bone, in determining alveolar fracture location and morphology, in analyzing ridge-defect height and width, and in imaging temporomandibular joints. Treatment-planning applications include those involving extraction of fractured teeth, placement of implants, exposure of impacted teeth, and analyses of airways.
三维成像在诊断和治疗规划方面具有诸多优势。本文重点介绍锥形束CT（CBCT）在创伤相关病例的诊断和治疗规划中的应用。CBCT设备比传统医学CT设备体积更小、成本更低，并且是针对牙-牙槽环境的特定挑战量身定制的。与医学CT一样，CBCT提供了传统二维牙科X线摄影无法提供的三维视图。CBCT将医学CT的优势与传统牙科X线摄影的优势相结合，以适应在牙-牙槽创伤病例中具有特殊用途的独特诊断和治疗规划应用。例如，CBCT在识别相对于周围牙槽骨的牙齿骨折、确定牙槽骨折的位置和形态、分析牙槽嵴缺损的高度和宽度以及颞下颌关节成像方面很有用。治疗规划应用包括涉及拔除折断牙齿、植入种植体、暴露阻生牙以及气道分析等方面。
