The Use of Dynamic Navigation for the Placement of Zygoma Implants. A Cadaver Study to Compare Accuracy.

The Journal of oral implantology Pub Date : 2024-10-18 DOI:10.1563/10.1563_aaid-joi-D-24-00026

Omran Bishbish, Yoon Jeong Kim, Joseph Kan, Jaime Lozada

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Abstract

Objective: This study aimed to compare the angular, platform, and apical deviation of zygoma implants placed with the aid of a dynamic navigation device compared to the implants placed freehand.

Methods: Eight cadaver heads were used for the study. Pre-operative CBCT scans were made for the heads, and an implant planning software was used to plan zygoma implants bilaterally in each scanned head. A total of 16 zygoma implants were placed using each surgical technique. Post-implant CBCT scans were merged with the pre-operative plan to evaluate and compare the accuracy of the implants using each technique. Angular and linear deviations of the implants were measured and compared. The effect of implant length and position on the deviation was also investigated.

Results: The results showed a mean angular deviation of 2.44 ± 1.10 degrees for implants placed using DN compared to 6.63 ± 4.81degrees for implants placed freehand. The mean apical deviation for implants placed using DN and for implants placed freehand was 2.14 ± 1.02 mm and 3.80 ± 2.49 mm, respectively. Finally, the mean platform deviation for implants placed using DN and for implants placed freehand was 1.66 ± 0.9 mm and 2.81 ± 2.1 mm, respectively. The analysis showed a significant difference between the two angular and apical deviation techniques. ( p=0.001 and 0.029 respectively).

Conclusion: Zygoma implants placed with a dynamic navigation device resulted in less apical and angular deviation than implants placed freehand..

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使用动态导航植入 Zygoma 假体。一项比较准确性的尸体研究。

研究目的本研究旨在比较借助动态导航装置植入颧骨假体与徒手植入假体的角度、平台和根尖偏差：研究使用了八个尸体头部。方法：研究使用了八个尸体头颅，对这些头颅进行了术前 CBCT 扫描，并使用种植规划软件对每个扫描头颅的双侧颧骨种植体进行了规划。每种手术方法共植入了 16 个颧骨种植体。植入后的 CBCT 扫描与术前计划合并，以评估和比较每种技术的植入准确性。对种植体的角度和线性偏差进行了测量和比较。此外，还研究了种植体长度和位置对偏差的影响：结果显示，使用 DN 技术植入种植体的平均角度偏差为 2.44 ± 1.10 度，而徒手植入种植体的平均角度偏差为 6.63 ± 4.81 度。使用 DN 和徒手植入种植体的平均根尖偏差分别为 2.14 ± 1.02 毫米和 3.80 ± 2.49 毫米。最后，使用 DN 和徒手植入种植体的平均平台偏差分别为 1.66 ± 0.9 毫米和 2.81 ± 2.1 毫米。分析表明，两种角度偏差和根尖偏差技术之间存在显著差异。(结论：结论：使用动态导航装置植入 Zygoma 种植体与徒手植入种植体相比，根尖和角度偏差较小。

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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The Journal of oral implantology

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