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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 digital planning in zygomatic implants.
B Xing Gao1, O Iglesias-Velázquez2, F G F Tresguerres1
1Department of Dental Clinical Specialties, Faculty of Dentistry, Complutense University, Plaza Ramón y Cajal, s/n (Ciudad Universitaria), 28040, Madrid, Spain.
International Journal of Implant Dentistry
|July 22, 2021
Summary
Virtual surgical planning (VSP) for zygomatic implants shows some deviations in final implant placement, particularly at the apex. While VSP aids planning, surgical expertise remains crucial for successful zygomatic implant procedures.
Area of Science:
- Oral and Maxillofacial Surgery
- Dental Implantology
- Surgical Planning
Background:
- Zygomatic implants offer an alternative to bone augmentation for severe maxillary atrophy.
- Accurate implant positioning is critical for treatment success.
- Virtual surgical planning (VSP) is commonly used but its clinical relevance is not well-studied.
Purpose of the Study:
- To evaluate the clinical relevance of digital planning for zygomatic implants.
- To determine if VSP influences implant dimensions and final position during conventional surgery.
Main Methods:
- Fourteen zygomatic implants were placed in four patients.
- Pre- and post-operative computed tomography scans were used for comparison.
- Evaluated tridimensional, mesio-distal, bucco-palatine, apico-coronal, and angular deviations.
Main Results:
- Significant apical tridimensional deviation (mean 6.114 ± 4.28 mm) was observed.
- Implants in the first right molar area showed significant apico-coronal deviation.
- Longer implants (>45 mm) exhibited significant bucco-palatine deviation.
Conclusions:
- Virtual surgical planning is a valuable tool for determining zygomatic implant number, length, and position.
- Despite VSP, significant deviations can occur, especially at the apex.
- Surgical experience remains essential for successful zygomatic implant surgery.
