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Proceedings Paper

Dental composite resins: measuring the polymerization shrinkage using optical fiber Bragg grating sensors
Author(s): H. Ottevaere; M. Tabak; K. Chah; P. Mégret; H. Thienpont
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Paper Abstract

Polymerization shrinkage of dental composite materials is recognized as one of the main reasons for the development of marginal leakage between a tooth and filling material. As an alternative to conventional measurement methods, we propose optical fiber Bragg grating (FBG) based sensors to perform real-time strain and shrinkage measurements during the curing process of dental resin cements. We introduce a fully automated set-up to measure the Bragg wavelength shift of the FBG strain sensors and to accurately monitor the linear strain and shrinkage of dental resins during curing. Three different dental resin materials were studied in this work: matrix-filled BisGMA-based resins, glass ionomers and organic modified ceramics.

Paper Details

Date Published: 9 May 2012
PDF: 6 pages
Proc. SPIE 8439, Optical Sensing and Detection II, 843903 (9 May 2012); doi: 10.1117/12.922127
Show Author Affiliations
H. Ottevaere, Vrije Univ. Brussel (Belgium)
M. Tabak, Vrije Univ. Brussel (Belgium)
K. Chah, Univ. de Mons (Belgium)
P. Mégret, Univ. de Mons (Belgium)
H. Thienpont, Vrije Univ. Brussel (Belgium)

Published in SPIE Proceedings Vol. 8439:
Optical Sensing and Detection II
Francis Berghmans; Anna Grazia Mignani; Piet De Moor, Editor(s)

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