螺旋CT三维成像技术在种植牙术前设计中的应用

目的:探讨采用16层螺旋CT进行上下颌骨精细扫描来辅助医生完成种植术前设计和术后评估。方法:利用16层CT)对种植牙患者进行术前扫描,将获得的数据信息进行三维图像重建并获得种植位点骨宽度、高度、骨密度数据,根据骨量行术前设计分析,调整种植计划,术后复查CT和术前图像对比分析观察手术效果。结果:通过西门子dentist分析软件分析15例患者术前及术后CT扫描数据,术前图像均能清晰显示颌骨形态、质地和重要解剖结构,如颏孔、上颌窦、下牙槽神经管,并能精确的测量种植位点可用骨的高度、厚度和宽度。结论:利用CT三维成像技术辅助临床完成种植牙手术术前设计及术后评估有重要的临床意义,它可有效规避风险并在满足患者需求的同时使种植修复简单化。

Objective：To investigate the 64 slice CT scan of maxilla and mandible to assist doctors to complete implant surgery and postoperative evaluation.Methods：Before and after the surgery of dental implant,use 64-slice CT（GE Ⅱ ght speed VCT） scan the maxilla and mandible of patients. The data information of 3D image reconstruction and implant sites of bone width, height and bone mineral density data,will be used to preoperative design analysis and adjust the implant plan.Postoperative and preoperative images could be observed and analysis the effect of the operation.Results：Siemens dentist analysis software to analyze 15 cases of patients with preoperative and postoperative CT scan data.Images can clearly show the jaw morphology,texture and important anatomical structure,such as the mental foramen） maxillary sinus, inferior alveolar nerve tube and can measure the accurate implant sites of available bone height, thickness and width.ConclusiQn：By using the CT 3D imaging technique,dental implant operation preoperative design and postoperative evaluation has important clinical significance.It can effectively avoid the risk and also meet the needs of the patients.