Moon Seong-Yong, Lee Kyoung-Rok, Kim Su-Gwan, Son Mee-Kyoung
Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University, 375 Seosuk dong, Dong-gu, Gwangju, 501-759 South Korea.
Department of Prosthodontics, Graduate School of Dentistry, Chosun University, 375 Seosuk dong, Dong-gu, Gwangju, 501-759 South Korea.
Maxillofac Plast Reconstr Surg. 2016 Mar 24;38(1):15. doi: 10.1186/s40902-016-0063-3. eCollection 2016 Dec.
The utilization of a cone-beam computed tomography (CT)-assisted surgical template allows for predictable results because implant placement plans can be performed in the actual surgery. In order to assess the accuracy of the CT-guided surgery, angular errors and shoulder/apex distance errors were evaluated by data fusion from before and after the placement.
Computer-guided implant surgery was performed in five patients with 19 implants. In order to analyze differences of the implant fixture body between preoperative planned implant and postoperative placed implant, angular error and distance errors were evaluated.
The mean angular errors between the preoperative planned and postoperative placed implant was 3.84° ± 1.49°; the mean distance errors between the planned and placed implants were 0.45 ± 0.48 mm horizontally and 0.63 ± 0.51 mm vertically at the implant neck and 0.70 ± 0.63 mm horizontally and 0.64 ± 0.57 mm vertically at the implant apex for all 19 implants.
It is important to be able to utilize these methods in actual clinical settings by improving the various problems, including the considerations of patient mouth opening limitations, surgical guide preparation, and fixation.
使用锥形束计算机断层扫描（CT）辅助手术模板可实现可预测的结果，因为种植体植入计划可在实际手术中进行。为评估CT引导手术的准确性，通过植入前后的数据融合评估角度误差和肩部/根尖距离误差。
对5例患者的19颗种植体进行计算机引导种植手术。为分析术前计划种植体与术后植入种植体的种植体固定体差异，评估角度误差和距离误差。
术前计划种植体与术后植入种植体之间的平均角度误差为3.84°±1.49°；所有19颗种植体在种植体颈部水平方向的计划种植体与植入种植体之间的平均距离误差为0.45±0.48mm，垂直方向为0.63±0.51mm；在种植体根尖水平方向为0.70±0.63mm，垂直方向为0.64±0.57mm。
通过改善各种问题，包括考虑患者张口受限、手术导板制备和固定等，能够在实际临床环境中应用这些方法非常重要。
