Suche nach „[S.] [Schmid]“ hat 4 Publikationen gefunden
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    DigitalMaschinenbau und Mechatronik


    A. Detterbeck, M. Hofmeister, D. Haddad, D. Weber, M. Schmid, A. Hölzing, S. Zabler, E. Hofmann, K.-H. Hiller, P. Jakob, J. Engel, Jochen Hiller, U. Hirschenfelder

    Determination of the mesio-distal tooth width via 3D imaging techniques with and without ionizing radiation: CBCT, MSCT, and μCT versus MRI

    European Journal of Orthodontics, vol. 39, no. 3, pp. 310-319

    DOI: 10.1093/ejo/cjw047

    Abstract anzeigen

    Objective: The purpose of this study was to estimate the feasibility and accuracy of mesio-distal width measurements with magnetic resonance imaging (MRI) in comparison to conventional 3D imaging techniques [multi-slice CT (MSCT), cone-beam CT (CBCT), and µCT]. The measured values of the tooth widths were compared to each other to estimate the amount of radiation necessary to enable orthodontic diagnostics. Material and Methods: Two pig skulls were measured with MSCT, CBCT, µCT, and MRI. Three different judges were asked to determine the mesio-distal tooth width of 14 teeth in 2D tomographic images and in 3D segmented images via a virtual ruler in every imaging dataset. Results: Approximately 19% (27/140) of all test points in 2D tomographic slice images and 12% (17/140) of the test points in 3D segmented images showed a significant difference (P ≤ 0.05). The largest significant difference was 1.6mm (P < 0.001). There were fewer significant differences in the measurement of the tooth germs than in erupted teeth. Conclusions: Measurement of tooth width by MRI seems to be clinically equivalent to the conventional techniques (CBCT and MSCT). Tooth germs are better illustrated than erupted teeth on MRI. Three-dimensional segmented images offer only a slight advantage over 2D tomographic slice images. MRI, which avoids radiation, is particularly appealing in adolescents if these data can be corroborated in further studies.



    D. Festner, Andreas Gegenfurtner, B. Meier, A. Babichenko, J. Huber, T. Koch, B. Morgenthaler, S. Schmid, F. Scheider, H. Gruber

    Transfer of training and its determinants

    A study conducted in the domain of occupational health and safety

    4th EARLI Special Interest Group (SIG) 14 Learning and Professional Development Conference, Jyväskylä, Finnland


    D. Festner, A. Babichenko, Andreas Gegenfurtner, B. Meier, S. Schmid, H. Gruber

    Transfer - Literaturauswertung

    Expertise für das Bundesgenossenschaftliche Institut für Arbeit und Gesundheit (BGAG), Dresden

    Maschinenbau und Mechatronik


    S. Reisinger, S. Kasperl, M. Franz, Jochen Hiller, U. Schmid

    Simulation-Based Planning of Optimal Conditions for Industrial Computed Tomography

    International Symposium on Digital Industrial Radiology and Computed Tomography, Berlin