Al-Jarsha, Mohammed Y. and Diao, Yufeng and Zhao, Guodong and Imran, Muhammad A. and Ayoub, Ashraf and Robertson, Douglas and Naudi, Kurt B. (2025) Dynamic navigation-guided robotic placement of zygomatic implants. Journal of Dentistry, 153: 105463. ISSN 0300-5712
AI Summary:
The study assessed the feasibility and accuracy of a new prototype robotic implant system for placing zygomatic implants in edentulous maxillary models. The results showed that the errors of the dynamic navigation-guided robotic placement of zygomatic implants were within clinically acceptable limits.AI Topics:
Objectives: To assess the feasibility and accuracy of a new prototype robotic implant system for the placement of zygomatic implants in edentulous maxillary models.
Methods: The study was carried out on eight plastic models. Cone beam computed tomographs were captured for each model to plan the positions of zygomatic implants. The hand-eye calibration technique was used to register the dynamic navigation system to the robotic spaces. A total of 16 zygomatic implants were placed, equally distributed between the anterior and the posterior parts of the zygoma. The placement of the implants (ZYGAN®, Southern Implants) was carried out using an active six-jointed robotic arm (UR3e, Universal Robots) guided by the dynamic navigation coordinate transformation matrix. The accuracy of the implant placement was assessed using EvaluNav and GeoMagicDesignX® software based on pre- and post-operative CBCT superimposition. Descriptive statistics for the implant deviations and Pearson's correlation analysis of these deviations to force feedback recorded by the robotic arm were conducted.
Results: The 3D deviations at the entry and exit points were 1.80 ± 0.96 mm and 2.80 ± 0.95 mm, respectively. The angular deviation was 1.74 ± 0.92°. The overall registration time was 23.8 ± 7.0 minutes for each side of the model. Operative time excluding registration was 66.8 ± 8.8 minutes for each trajectory.
The exit point and angular deviations of the implants were positively correlated with the drilling force perpendicular to the long axis of the handpiece and negatively correlated with the drilling force parallel to the long axis of the handpiece.
Conclusion: The errors of the dynamic navigation-guided robotic placement of zygomatic implants were within the clinically acceptable limits. Further refinements are required to facilitate the clinical application of the tested integrated robotic-dynamic navigation system.
Clinical Significance: Robotic placement of zygomatic implants has the potential to produce a highly predictable outcome irrespective of the operator's surgical experience or fatigue. The presented study paves the way for clinical applications.
Al-Jarsha, Mohammed Y.
Author
Al-Jarsha, Mohammed Y. and Diao, Yufeng and Zhao, Guodong and Imran, Muhammad A. and Ayoub, Ashraf and Robertson, Douglas and Naudi, Kurt B. (2025) Dynamic navigation-guided robotic placement of zygomatic implants. Journal of Dentistry, 153: 105463. ISSN 0300-5712
Al-Jarsha, Mohammed Y. and Ayoub, Ashraf F. and Almgran, Mohammed M. and Liu, Chieh-Han and Robertson, Douglas P. and Naudi, Kurt B. (2024) The precision of drill calibration for dynamic navigation. Journal of Dentistry, 146: 105032. ISSN 0300-5712
See full publications listDiao, Yufeng
Author
Al-Jarsha, Mohammed Y. and Diao, Yufeng and Zhao, Guodong and Imran, Muhammad A. and Ayoub, Ashraf and Robertson, Douglas and Naudi, Kurt B. (2025) Dynamic navigation-guided robotic placement of zygomatic implants. Journal of Dentistry, 153: 105463. ISSN 0300-5712
See full publications listZhao, Guodong
Author
Al-Jarsha, Mohammed Y. and Diao, Yufeng and Zhao, Guodong and Imran, Muhammad A. and Ayoub, Ashraf and Robertson, Douglas and Naudi, Kurt B. (2025) Dynamic navigation-guided robotic placement of zygomatic implants. Journal of Dentistry, 153: 105463. ISSN 0300-5712
See full publications listImran, Muhammad A.
Author
Al-Jarsha, Mohammed Y. and Diao, Yufeng and Zhao, Guodong and Imran, Muhammad A. and Ayoub, Ashraf and Robertson, Douglas and Naudi, Kurt B. (2025) Dynamic navigation-guided robotic placement of zygomatic implants. Journal of Dentistry, 153: 105463. ISSN 0300-5712
See full publications listAyoub, Ashraf F.
Author
Ju, Xiangyang and Ayoub, Ashraf and Morley, Stephen (2025) Quantitative assessment of facial paralysis using dynamic 3D photogrammetry and deep learning: a hybrid approach integrating expert consensus. Sensors, 25 (11): 3264. ISSN 1424-8220
Al-baker, Bodore and Ju, Xiangyang and Mossey, Peter and Ayoub, Ashraf (2025) The accuracy of automated facial landmarking - a comparative study between Cliniface software and patch-based Convoluted Neural Network algorithm. European Journal of Orthodontics, 47 (2): cjaf009. ISSN 0141-5387
Saghafi, Hamideh and Benington, Philip and Ju, Xiangyang and Ayoub, Ashraf (2025) Is the orthodontics-first method more stable than the surgery-first approach for orthognathic correction of maxillary deficiency? Journal of Cranio-Maxillofacial Surgery, 53 (4). pp. 312-317. ISSN 1010-5182
See full publications listRobertson, Douglas P.
Author
Al-Jarsha, Mohammed Y. and Diao, Yufeng and Zhao, Guodong and Imran, Muhammad A. and Ayoub, Ashraf and Robertson, Douglas and Naudi, Kurt B. (2025) Dynamic navigation-guided robotic placement of zygomatic implants. Journal of Dentistry, 153: 105463. ISSN 0300-5712
Al-Jarsha, Mohammed Y. and Ayoub, Ashraf F. and Almgran, Mohammed M. and Liu, Chieh-Han and Robertson, Douglas P. and Naudi, Kurt B. (2024) The precision of drill calibration for dynamic navigation. Journal of Dentistry, 146: 105032. ISSN 0300-5712
See full publications listBusuttil Naudi, Kurt
Author
Al-Jarsha, Mohammed Y. and Diao, Yufeng and Zhao, Guodong and Imran, Muhammad A. and Ayoub, Ashraf and Robertson, Douglas and Naudi, Kurt B. (2025) Dynamic navigation-guided robotic placement of zygomatic implants. Journal of Dentistry, 153: 105463. ISSN 0300-5712
Dickie, Jamie and Sherriff, Andrea and McEwan, Michael and Bell, Aileen and Busuttil Naudi, Kurt (2023) Longitudinal assessment of undergraduate dental students: Building evidence for validity. European Journal of Dental Education, 27 (4). pp. 1136-1150. ISSN 1396-5883
See full publications listAvailable under License Creative Commons Attribution.
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