基于CBCT的可视化技术在颧种植体导航中的设计研究

目的: 探讨如何使用Simplant软件对上颌骨骨量不足的患者进行颧种植体设计,并在手术导航中实施。方法: 5例上颌后牙区骨量不足的患者使用Simplant软件基于CBCT数据进行种植体设计,并在导航下实行手术。结果: 5例患者植入种植体后,位置与术前设计方案比较发现,种植体与Fankfort平面所成角度(angle,A)偏差小于1°,颧骨内种植体的长度(length in zygoma,LZ)距眶壁距离(distance to orbit wall,D)、牙槽骨内种植体长度(length in alveolar bone, LA)的偏差均小于2 mm,术后12个月随访无种植体失败。结论: 通过Simplant软件进行颧种植体设计,可以使种植方案更加完善,与手术导航系统的联合使用可以实现精准手术,大大提升了复杂颧种植手术的安全性和准确性。

Designing of Zygomatic Implant Surgery Navigation with Visualization Technology based on CBCT Data.

Objective: To design the zygomatic implant for patients with severely atrophied alveolar ridge by Simplant using CBCT data, and to implement it in surgery. Methods: Implants were designed for 5 patients with severely atrophied alveolar ridge by Simplant. During the operation, the navigation software will match the pathway to the designed plan. Results: Implant positions deviated from planed slightly. The deviation of the angle of implant to the Fankfort plane (A) is less than 1°, the deviations of the length of implant in Zygoma (LZ) to the distance from the implant to orbit wall length (D) and to the length of implant in alveolar bone (LA) were less than 2mm. After 12 months, no implant failure occurred. Conclusion: Designing the surgical pathway of zygomatic implant through Simplant software and effectuating the surgery through surgical navigation system can make the planting plan more precise, and greatly enhance the safety and accuracy of complex zygomatic implant surgery.