title: A Comparison of Different Methods to Generate Tooth Surface Models Without Applying Ionizing Radiation for Digital 3-Dimensional Image Fusion With Magnetic Resonance Imaging-Based Data of the Head and Neck Region.
abstract: OBJECTIVE
  The 3-dimensional display of the vocal tract and teeth is necessary in numerous clinical and scientific contexts. Due to the different tissue properties this can only be achieved by combining different imaging techniques. A comparison of methods to record the tooth surface to create combined models of the vocal tract and teeth without applying ionizing radiation is displayed in this study.
  
  
  METHODS
  Four methods to record the tooth surface were compared concerning their clinical accuracy after combination with magnetic resonance imaging (MRI)-based vocal tract models. With 2 of the presented methods the information of the tooth surface was obtained from MRI data. With the other 2 methods, the tooth surface was captured using a digital and a conventional impression technique.
  
  
  RESULTS
  Impression techniques received the best rating results.
  
  
  CONCLUSIONS
  The digital 3-dimensional image fusion of dental impression and MRI resulted in a virtual model of the vocal tract and teeth with a high clinical accuracy without applying ionizing radiation.
authors: From the *Institute of Musicians' Medicine, †Department of Otolaryngology, ‡Department of Oral and Maxillofacial Surgery, and §Department of Radiology, Medical Physics, University Medical Center Freiburg; ∥Laboratory of Simulation, Institute of Microsystem Technology, University Freiburg, Georges Köhler Allee, Gebäude, Freiburg; and ¶Institute of Microstructure Technology, Karlsruhe Institute of Technology, Germany.
authors: Louisa
authors: L
authors: Traser
authors: Tabea Viktoria
authors: TV
authors: Flügge
authors: Michael
authors: M
authors: Burdumy
authors: Robert
authors: R
authors: Kamberger
authors: Bernhard
authors: B
authors: Richter
authors: Frederike
authors: F
authors: Hassepass
authors: Jan Gerrit
authors: JG
authors: Korvink
authors: Matthias
authors: M
authors: Echternach
mesh_terms: D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D007830:Larynx / Q000033:anatomy & histology*; D008279:Magnetic Resonance Imaging; D008297:Male; D011839:Radiation, Ionizing; D019252:Radiography, Dental, Digital / Q000379:methods*; D015203:Reproducibility of Results; D014070:Tooth / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*