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Proceedings Paper

A contrast and registration template for magnetic resonance image data guided dental implant placement
Author(s): Georg Eggers; Raluca Cosgarea; Marcus Rieker; Bodo Kress; Hartmut Dickhaus; Joachim Mühling
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Paper Abstract

An oral imaging template was developed to address the shortcomings of MR image data for image guided dental implant planning and placement. The template was conctructed as a gadolinium filled plastic shell to give contrast to the dentition and also to be accurately re-attachable for use in image guided dental implant placement. The result of segmentation and modelling of the dentition from MR Image data with the template was compared to plaster casts of the dentition. In a phantom study dental implant placement was performed based on MR image data. MR imaging with the contrast template allowed complete representation of the existing dentition. In the phantom study, a commercially available system for image guided dental implant placement was used. Transformation of the imaging contrast template into a surgical drill guide based on the MR image data resulted in pilot burr hole placement with an accuracy of 2 mm. MRI based imaging of the existing dentition for proper image guided planning is possible with the proposed template. Using the image data and the template resulted in less accurate pilot burr hole placement in comparison to CT-based image guided implant placement.

Paper Details

Date Published: 13 March 2009
PDF: 6 pages
Proc. SPIE 7261, Medical Imaging 2009: Visualization, Image-Guided Procedures, and Modeling, 726135 (13 March 2009); doi: 10.1117/12.811412
Show Author Affiliations
Georg Eggers, Heidelberg Univ. (Germany)
Raluca Cosgarea, Heidelberg Univ. (Germany)
Marcus Rieker, Heidelberg Univ. (Germany)
Bodo Kress, Krankenhaus Nordwest (Germany)
Hartmut Dickhaus, Heidelberg Univ. (Germany)
Joachim Mühling, Heidelberg Univ. (Germany)

Published in SPIE Proceedings Vol. 7261:
Medical Imaging 2009: Visualization, Image-Guided Procedures, and Modeling
Michael I. Miga; Kenneth H. Wong, Editor(s)

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