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Updated: Jun 9, 2025

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Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
Published on: October 18, 2021
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Accuracy of Zygomatic Implant Placement Using Task-Autonomous Robotic System or Dynamic Navigation: An In Vitro Study
Jinyan Chen1,2,3,4,5,6, Baoxin Tao1,2,3,4,5,6, Xinbo Yu1,2,3,4,5,6
1Department of Second Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Clinical Oral Implants Research
|October 23, 2024
Summary
Task-autonomous robot-assisted implant surgery (RAIS) demonstrated superior accuracy in zygomatic implant placement compared to dynamic computer-assisted implant surgery (dCAIS). RAIS significantly reduced angular and deviation errors, enhancing surgical precision.
Area of Science:
- Oral and Maxillofacial Surgery
- Robotics in Medicine
- Dental Implantology
Background:
- Zygomatic implant (ZI) placement in atrophic maxillas presents surgical challenges.
- Computer-assisted surgery aims to improve implant placement accuracy.
- Task-autonomous robot-assisted implant surgery (RAIS) and dynamic computer-assisted implant surgery (dCAIS) are emerging techniques.
Purpose of the Study:
- To compare the accuracy of RAIS and dCAIS for zygomatic implant placement.
- To evaluate deviations in angular and linear parameters between planned and placed ZIs.
- To determine which system offers superior precision in zygomatic implant surgery.
Main Methods:
- Ten atrophic maxilla models were used, with 20 ZIs placed.
- Models were randomly assigned to either the RAIS or dCAIS group.
- Osteotomies and implant placements were guided by the respective systems, with deviations measured and statistically analyzed.
Main Results:
- RAIS showed significantly lower mean angular deviation (0.92° ± 0.40°) compared to dCAIS (2.03° ± 0.53°, p < 0.001).
- Coronal deviation was also significantly lower with RAIS (0.48 mm ± 0.25 mm) versus dCAIS (1.29 mm ± 0.46 mm, p < 0.001).
- Apical deviation favored RAIS (0.88 mm ± 0.28 mm) over dCAIS (1.96 mm ± 0.46 mm, p < 0.001).
Conclusions:
- Task-autonomous RAIS is more accurate than dCAIS for computer-guided zygomatic implant placement.
- RAIS offers enhanced precision, potentially improving outcomes in complex implant surgeries.
- The findings support the adoption of RAIS for improved accuracy in zygomatic implantology.

