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Updated: Aug 7, 2026
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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
[The installation of zygomatic implants and drilling guide]
Yi-qun Wu1, Zhi-yong Zhang, Chen-ping Zhang
1Center of Implantology, School of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China.
Summary
This study highlights the precise placement of zygomatic implants in patients with severe maxillary bone loss using 3D planning and anatomical models. This technique improves surgical outcomes for complex dental reconstructions.
Area of Science:
- Oral and Maxillofacial Surgery
- Dental Implantology
- Biomedical Engineering
Background:
- Severely resorbed edentulous maxillae present significant challenges for dental implant placement.
- Traditional implant techniques may be insufficient for complex maxillary reconstructions and defects.
Purpose of the Study:
- To describe the technique for installing zygomatic implants in severely resorbed edentulous maxillae.
- To evaluate the efficacy of 3D imaging and CAD/CAM models in zygomatic implant surgery.
Main Methods:
- Utilized axial spiral CT data to create life-size anatomical models via CAD/CAM.
- Conducted preoperative measurements of maxillary and zygomatic parameters.
- Employed anatomical models and surgical guides for precise zygomatic implant placement in five patients.
Main Results:
- Achieved ideal direction and position for 8 zygomatic implants in all five patients.
- Demonstrated precise implant positioning as preoperatively planned using anatomical models and surgical plates.
- Zygomatic implant lengths ranged from 40 mm to 50 mm.
Conclusions:
- Surgical drilling guides are recommended for accurate zygomatic implant placement.
- 3D imaging data and anatomical models significantly enhance preoperative planning and surgical procedures.
- This technique offers a reliable solution for rehabilitating patients with severe maxillary atrophy and defects.