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Title: Accuracy of drilling guides for transfer from three-dimensional CT-based planning to placement of zygoma implants in human cadavers
Authors: van Steenberghe, Daniel ×
Malevez, Chantal
Van Cleynenbreugel, Johan
Bou Serhal, Charbel
Dhoore, Ellen
Schutyser, Filip
Suetens, Paul
Jacobs, Reinhilde #
Issue Date: Feb-2003
Publisher: Munksgaard
Series Title: Clinical oral implants research vol:14 issue:1 pages:131-136
Abstract: The accuracy of surgical drilling guides was assessed for placement of zygoma implants. Six zygoma fixtures of length 45 mm (Nobel Biocare, Göteborg, Sweden) were placed in three formalin-fixed human cadavers using surgical drilling guides. The fabrication of these custom-made drilling guides was based on three-dimensional computerized tomography (3D-CT) data for the maxillary-zygomatic complex. The installation of the implants was simulated preoperatively using an adopted 3D-CT planning system. In addition, anatomical measurements of the zygomatic bone were performed on the 3D images. The preoperative CT images were then matched with postoperative ones in order to assess the deviation between the planned and installed implants. The angle between the planned and actually placed implants was < 3 degrees in four out of six cases. The largest deviation found at the exit point of one of the six implants was 2.7 mm. The present study showed that the use of surgical drilling guides should be encouraged for zygoma implant placement because of the lengths of the implants involved and the anatomical intricacies of the region.
Description: van Steenberghe D., Malevez C., Van Cleynenbreugel J., Bou Serhal C., Dhoore E., Schutyser F., Suetens P., Jacobs R., ''Accuracy of drilling guides for transfer from three-dimensional CT-based planning to placement of zygoma implants in human cadavers'', Clinical oral implants research, vol. 14, pp. 131-136, 2003.
URI: 
ISSN: 0905-7161
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Periodontology
ESAT - PSI, Processing Speech and Images
Oral Imaging
× corresponding author
# (joint) last author

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