Surgery Planning for Dental Implantology
For pre-operative planning of interventions in dental implantology as well as maxillofacial surgery an accurate geometric reconstruction of the relevant anatomical structures is indispensable. An implant that is placed into the mandibular bone must not damage risk structures like the alveolar nerves or dental roots. Furthermore, a stable placement of the implant inside the bone must be achieved. Planning is performed based on medical images, such as CT or cone-beam CT. The aim is to segment the structures in an automatic fashion from the image data, which is impeded by low contrast or metal artefacts. We have developed a hierarchical approach based on statistical shape models and machine learning techniques in order to segment bone and nerve as well to determine the configuration of teeth. In particular, our bone segmentation has reached an accuracy suitable for clinical use.
Publications
2023 |
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Oliver Wagendorf, Susanne Nahles, Kirstin Vach, Florian Kernen, Stefan Zachow, Max Heiland, Tabea Flügge | The impact of teeth and dental restorations on gray value distribution in cone-beam computer tomography - a pilot study | International Journal of Implant Dentistry, 9(27), 2023 |
BibTeX
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2019 |
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Mario Neumann, Olaf Hellwich, Stefan Zachow | Localization and Classification of Teeth in Cone Beam CT using Convolutional Neural Networks | Proc. of the 18th annual conference on Computer- and Robot-assisted Surgery (CURAC), pp. 182-188, 2019, ISBN: 978-3-00-063717-9 |
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Mario Neumann | Localization and Classification of Teeth in Cone Beam Computed Tomography using 2D CNNs | Master's thesis, Technische Universität Berlin, Stefan Zachow (Advisor), 2019 |
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2012 |
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The Duy Nguyen, Hans Lamecker, Dagmar Kainmüller, Stefan Zachow | Automatic Detection and Classification of Teeth in CT Data | Proc. Medical Image Computing and Computer Assisted Intervention (MICCAI), Nicholas Ayache, Hervé Delingette, Polina Golland, Kensaku Mori (Eds.), pp. 609-616, Vol.7510, Lecture Notes in Computer Science, 2012 |
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The Duy Nguyen, Dagmar Kainmüller, Hans Lamecker, Stefan Zachow | Automatic bone and tooth detection for CT-based dental implant planning | Int. J. Computer Assisted Radiology and Surgery, 7, Supplement 1(1), pp. 293-294, 2012 |
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The Duy Nguyen | Automatic segmentation for dental operation planning | Master's thesis, Technische Universität Dresden, Stefan Gumhold, Stefan Zachow (Advisors), 2012 |
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2009 |
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Dagmar Kainmüller, Hans Lamecker, Heiko Seim, Max Zinser, Stefan Zachow | Automatic Extraction of Mandibular Nerve and Bone from Cone-Beam CT Data | Proceedings of Medical Image Computing and Computer Assisted Intervention (MICCAI), Guang-Zhong Yang, David J. Hawkes, Daniel Rueckert, J. Alison Noble, Chris J. Taylor (Eds.), pp. 76-83, 2009 |
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2006 |
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Hans Lamecker, Stefan Zachow, Antonia Wittmers, Britta Weber, Hans-Christian Hege, Barbara Elsholtz, Michael Stiller | Automatic segmentation of mandibles in low-dose CT-data | Int. J. Computer Assisted Radiology and Surgery, Vol.1(1), pp. 393-395, 2006 |
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Stefan Zachow, Hans Lamecker, Barbara Elsholtz, Michael Stiller | Is the course of the mandibular nerve deducible from the shape of the mandible? | Int. J. of Computer Assisted Radiology and Surgery, pp. 415-417, 2006 |
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2005 |
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Hans Lamecker, Stefan Zachow, Hannes Haberl, Michael Stiller | Medical applications for statistical shape models | Computer Aided Surgery around the Head, Fortschritt-Berichte VDI - Biotechnik/Medizintechnik, Vol.17 (258), p. 61, 2005 |
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