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Proceedings Paper

Evaluation of oral scanning in comparison to impression using three-dimensional registration
Author(s): Yur-Chung Brogle-Kim; Hans Deyhle; Bert Müller; Georg Schulz; Therese Bormann; Felix Beckmann; Kurt Jäger
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Paper Abstract

Crown and bridge restorations are one of the main treatment methods in fixed prosthodontics. The fabrication requires data on the patient’s denture shape. This information is generally obtained as a hard copy from an impression mold. Alternatively, one can acquire the data electronically using oral optical three-dimensional (3D) imaging techniques, which determine the surface of the denture. The aim of the study was to quantitatively compare the accuracy of three dimensional scanning with that of conventional impressions and give a statement how far the scanner provides a clinical alternative with equal or better precision. Data from 10 teeth were acquired in the dental office with a polyether impression material and an oral scanner. Data from the impressions were digitalized by means of micro computed tomography. The data were then 3D registered to identify the potential differences between impression and optical scan. We could demonstrate that the oral scanner’s data and the conventional impressions are comparable.

Paper Details

Date Published: 17 October 2012
PDF: 9 pages
Proc. SPIE 8506, Developments in X-Ray Tomography VIII, 85061R (17 October 2012); doi: 10.1117/12.929727
Show Author Affiliations
Yur-Chung Brogle-Kim, Basel Univ. Hospital (Switzerland)
Hans Deyhle, Basel Univ. Hospital (Switzerland)
Bert Müller, Basel Univ. Hospital (Switzerland)
Georg Schulz, Basel Univ. Hospital (Switzerland)
Therese Bormann, Basel Univ. Hospital (Switzerland)
Univ. of Applied Sciences Northwestern Switzerland (Switzerland)
Felix Beckmann, Helmholtz-Zentrum Geesthacht (Germany)
Kurt Jäger, Basel Univ. Hospital (Switzerland)

Published in SPIE Proceedings Vol. 8506:
Developments in X-Ray Tomography VIII
Stuart R. Stock, Editor(s)

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