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Zygomatic implant placement using a robot-assisted flapless protocol: proof of concept
M Olivetto1, J Bettoni2, S Testelin2
1Department of Maxillofacial Surgery, Hospital Centre of Annecy Geneva, Épagny Metz-Tessy, France; Department of Maxillofacial Surgery, University Hospital of Amiens-Picardy, University Medical Centre, Amiens, France.
International Journal of Oral and Maxillofacial Surgery
|December 14, 2022
Summary
This study introduces a robot-assisted, flapless technique for precise zygomatic implant placement. The novel approach utilizes robotic guidance to minimize positioning errors, enhancing surgical accuracy and safety.
Area of Science:
- Oral and Maxillofacial Surgery
- Medical Robotics
- Dental Implantology
Background:
- Zygomatic implant placement traditionally involves invasive procedures.
- Achieving precise implant trajectory is crucial for successful outcomes.
- Robotic assistance offers potential for enhanced surgical accuracy and minimally invasive approaches.
Purpose of the Study:
- To report a novel robot-assisted, flapless protocol for zygomatic implant placement.
- To evaluate the precision and safety of this new surgical technique.
Main Methods:
- A preoperative computed tomography (CT) scan was used for surgical path planning.
- The ROSA robot provided shared control guidance for drilling and tapping.
- Flapless zygomatic implant placement was performed manually by the surgeon.
- Intraoperative 3D verification was conducted using cone beam CT.
Main Results:
- Four zygomatic implants were successfully placed using the flapless protocol.
- The mean vector error in implant positioning was 1.78 mm.
- A temporary prosthesis was placed immediately, with no significant complications reported.
Conclusions:
- Robot-assisted flapless zygomatic implant surgery demonstrates high precision and potential safety.
- This technique may reduce inaccuracies in implant positioning compared to traditional methods.
- Minimizing drill slipping through haptic feedback is key to improving accuracy.

