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MR-Imaging of teeth and periodontal apparatus: an experimental study comparing high-resolution MRI with MDCT and CBCT

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Abstract

Objectives

The aim of this study was (1) to assess the ability of magnetic resonance imaging (MRI) to visualize dental and periodontal structures and (2) to compare findings with multidetector computed tomography (MDCT) and cone beam CT (CBCT).

Materials and methods

Four porcine mandibles were examined with (1) 3T-MRI, (2) MDCT and (3) CBCT. Two observers independently reviewed MR, MDCT and CBCT images and assessed image quality of different dental and periodontal structures. To assess quantitatively the accuracy of the different imaging technique, both observers measured burr holes, previously drilled in the mandibles.

Results

Dental structures, e.g. teeth roots, pulpa chamber and dentin, were imaged accurately with all imaging sources. Periodontal space and cortical/trabecular bone were better visualized by MRI (p < 0.001). MRI could excellently display the lamina dura, not detectable with MDCT and only inconstant visible with CBCT (p < 0.001). Burr hole measurements were highly precise with all imaging techniques.

Conclusions

This experimental study shows the diagnostic feasibility of MRI in visualization of teeth and periodontal anatomy. Detection of periodontal structures was significantly better with MRI than with MDCT or CBCT. Prospective trials have to evaluate further the potential benefit of MRI in a clinical setting.

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Authors and Affiliations

  1. Department of Neuroradiology, University Hospital Heidelberg, 69120, Heidelberg, Germany

    Chiara Gaudino, Réka Csernus, Mirko Pham, Martin Bendszus & Stefan Rohde

  2. Department of Periodontology, University Hospital Heidelberg, 69120, Heidelberg, Germany

    Raluca Cosgarea & Ti-Sun Kim

  3. Section of Experimental Radiology, University Hospital Heidelberg, 69120, Heidelberg, Germany

    Sabine Heiland

  4. Department of Radiology, Interdisciplinary Center for Biomedical Research, University Campus Bio-Medico of Rome, Rome, Italy

    Bruno Beomonte Zobel

Authors
  1. Chiara Gaudino
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  2. Raluca Cosgarea
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  3. Sabine Heiland
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  4. Réka Csernus
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  5. Bruno Beomonte Zobel
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  6. Mirko Pham
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  8. Martin Bendszus
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  9. Stefan Rohde
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Correspondence to Chiara Gaudino.

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Gaudino, C., Cosgarea, R., Heiland, S. et al. MR-Imaging of teeth and periodontal apparatus: an experimental study comparing high-resolution MRI with MDCT and CBCT. Eur Radiol 21, 2575–2583 (2011). https://doi.org/10.1007/s00330-011-2209-0

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  • DOI: https://doi.org/10.1007/s00330-011-2209-0

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