Comparative Accuracy of Static vs Dynamic Guidance for Dental Implant Placement on Vascularized Bone Flap Reconstruction: A Retrospective Study.

Jie Liang, Yifan Kang, Zichao Wang, Yanjun Ge, Xiaofeng Shan, Zhigang Cai
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Abstract

Purpose: To evaluate and compare the accuracy of dental implant placement on vascularized bone flaps (VBFs) reconstructed for jaw defects using static computer-assisted implant surgery (s-CAIS) and dynamic computer-assisted implant surgery (d-CAIS).

Material and methods: The present retrospective study included patients who underwent s- or d-CAIS implant placement following VBFs reconstruction between October 2021 and October 2023. Accuracy was assessed by comparing the preoperative design and postoperative results from cone-beam computed tomography. Key parameters, such as angulation deviation, global deviation at the platform and apex, and bidirectional deviations (mesiodistal, buccolingual, and apicocoronal), were measured and compared between groups.

Results: A total of 23 patients were included: nine patients (33 implants) in the d-CAIS group and 14 patients (41 implants) in the s-CAIS group. The d-CAIS group demonstrated significantly lower global deviation (p < 0.01) and apicocoronal deviation at the apex (p < 0.05) compared to the s-CAIS group. Superior accuracy was also observed in the d-CAIS group for posterior implants, particularly in apicocoronal deviation at both the platform and apex levels (p < 0.01). Additionally, d-CAIS outperformed s-CAIS for mandibular implants, showing significantly lower buccolingual deviation at both the platform and apex levels (p < 0.05). For implants on iliac flaps, d-CAIS exhibited lower angulation deviation and global deviation at the platform and apex levels (p < 0.05).

Conclusion: When placing implants on VBFs reconstructed jaws, dynamic guidance demonstrated superior precision, particularly in controlling depth and apex deviation.

带血管骨瓣重建牙种植体静态引导与动态引导的准确性比较:回顾性研究。
目的:评价和比较静态计算机辅助种植(s-CAIS)和动态计算机辅助种植(d-CAIS)修复颌骨缺损血管化骨瓣(VBFs)种植体的准确性。材料和方法:本回顾性研究包括2021年10月至2023年10月期间在VBFs重建后接受s-或d-CAIS植入的患者。通过比较术前设计和术后锥束计算机断层扫描的结果来评估准确性。测量并比较各组间的关键参数,如成角偏差、平台和尖端的整体偏差以及双向偏差(中远端、颊舌端和顶冠端)。结果:共纳入23例患者:d-CAIS组9例(33个种植体),s-CAIS组14例(41个种植体)。与s-CAIS组相比,d-CAIS组整体偏度(p < 0.01)和根尖冠状面偏度(p < 0.05)明显降低。d-CAIS组对于后路种植体的准确性也较高,特别是在平台和尖水平的冠状偏移(p < 0.01)。此外,下颌种植体的d-CAIS优于s-CAIS,在平台和尖端水平均显示更低的颊舌偏差(p < 0.05)。对于髂骨瓣植入物,d-CAIS在平台和尖端水平表现出较低的角度偏差和整体偏差(p < 0.05)。结论:在vfs重建颌上放置种植体时,动态引导具有更高的精度,特别是在控制深度和尖偏差方面。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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