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Proceedings Paper

Chromatic dispersive confocal technology for intra-oral scanning: first in-vitro results
Author(s): T. Ertl; M. Zint; Annelene Konz; E. Brauer; H. Hörhold; Raimund Hibst
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Paper Abstract

Various test objects, plaster models, partially equipped with extracted teeth and pig jaws representing various clinical situations of tooth preparations were used for in-vitro scanning tests with an experimental intra-oral scanning system based on chromatic-dispersive confocal technology. Scanning results were compared against data sets of the same object captured by an industrial μCT measuring system. Compared to μCT data an average error of 18 – 30 μm was achieved for a single tooth scan area and less than 40 to 60 μm error measured over the restoration + the neighbor teeth and pontic areas up to 7 units. Mean error for a full jaw is within 100 – 140 μm. The length error for a 3 – 4 unit bridge situation form contact point to contact point is below 100 μm and excellent interproximal surface coverage and prep margin clarity was achieved.

Paper Details

Date Published: 24 February 2015
PDF: 10 pages
Proc. SPIE 9306, Lasers in Dentistry XXI, 93060B (24 February 2015); doi: 10.1117/12.2079008
Show Author Affiliations
T. Ertl, Dentsply International (Germany)
M. Zint, Institut für Lasertechnologien (Germany)
Annelene Konz, Institut für Lasertechnologien in der Medizin und Messtechnik (Germany)
E. Brauer, Institut für Lasertechnologien (Germany)
H. Hörhold, Degudent GmbH (Germany)
Raimund Hibst, Institut für Lasertechnologien in der Medizin und Messtechnik (Germany)

Published in SPIE Proceedings Vol. 9306:
Lasers in Dentistry XXI
Peter Rechmann; Daniel Fried, Editor(s)

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