多排螺旋CT全景齿科成像技术的临床价值探讨

Clinical application of dental panoramic imaging by multi-slice spiral CT

目的探讨多排螺旋CT(MSCT)全景齿科成像技术的临床应用价值。方法对38例患者的牙齿、颌骨部位的容积数据进行后处理,重建出全景齿科图像和牙槽骨的矢状面和冠状曲面图像,与原始图像结合,对牙科疾病进行分析。结果行MSCT检查的38例口腔疾病患者中,均能全方位立体再现齿科全貌:包括牙冠、牙体、牙根、牙髓腔的局部细节以及牙齿排列及咬合关系,可以从多个角度完整地显示了单个牙体的表面形态、各牙所在的位置、倾斜角度以及各牙之间的距离、牙列的整体形态和牙根的走行方向。结论多排螺旋CT全景齿科成像可对牙、颌骨内微小病变的诊断治疗提供重要的客观依据,为牙科疾病提供了一种新的先进的检查手段及诊断方法。

Objective To investigate the clinical application of dental panoramic imaging by multi-slice spiral CT（MSCT）.Methods Dental panoramic images,coronal and sagittal images of alveolar bone were reconstructed from initial data of tooth and jaw MSCT scanning in 38 patients with oral disease,and the results were compared with original images.Results All these 38 patients accepted MSCT scaning,the panorama of dental could be display clearly,including local details of the crown,dental body,root and pulp cavity,the teeth alignment and occlusal relationship.The surface morphology of each single dental body,the location,inclination angle and distance of each tooth,the dentural integral shape and the root walking direction could be displayed completely.Conclusions As an advanced examinational means and diagnosis method,dental panoramic imaging by MSCT could provide important objective basis？for clinical diagnosis and treatment of minute lesion of the tooth and jaw.