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Proceedings Paper

Optical investigations of various polymeric materials used in dental technology
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Paper Abstract

Dental prosthetic restorations have to satisfy high stress as well as aesthetic requirements. In order to avoid deficiencies of dental prostheses, several alternative systems and procedures were imagined, directly related to the material used and also to the manufacturing technology. Increasing the biomechanical comportment of polymeric materials implies fiber reinforcing. The different fibers reinforcing products made very difficult the evaluation of their performances and biomechanical properties analysis. There are several known methods which are used to assess the quality of dental prostheses, but most are invasive. These lead to the destruction of the samples and often no conclusion could be drawn in the investigated areas of interest. Using a time domain en-face OCT system, we have recently demonstrated real time thorough evaluation of quality of various dental treatments. The aim of this study was to assess the quality of various polymeric materials used in dental technology and to validate the en face OCT imagistic evaluation of polymeric dental prostheses by using scanning electron microscopy (SEM) and microcomputer tomography (μCT). SEM investigations evidenced the nonlinear aspect of the interface between the polymeric material and the fiber reinforcement and materials defects in some samples. The results obtained by microCT revealed also some defects inside the polymeric materials and at the interfaces with the fiber reinforcement. The advantages of the OCT method consist in non-invasiveness and high resolution. In addition, en face OCT investigations permit visualization of the more complex stratified structure at the interface between the polymeric material and the fiber reinforcement.

Paper Details

Date Published: 1 October 2011
PDF: 8 pages
Proc. SPIE 8172, Optical Complex Systems: OCS11, 817216 (1 October 2011); doi: 10.1117/12.896932
Show Author Affiliations
Meda Lavinia Negrutiu, Victor Babes Univ. of Medicine and Pharmacy of Timisoara (Romania)
Cosmin Sinescu, Victor Babes Univ. of Medicine and Pharmacy of Timisoara (Romania)
Florin Ionel Topala, Victor Babes Univ. of Medicine and Pharmacy of Timisoara (Romania)
Ciprian Ionita, State Univ. of New York at Buffalo (United States)
Luciana Goguta, Victor Babes Univ. of Medicine and Pharmacy of Timisoara (Romania)
Corina Marcauteanu, Victor Babes Univ. of Medicine and Pharmacy of Timisoara (Romania)
Mihai Rominu, Victor Babes Univ. of Medicine and Pharmacy of Timisoara (Romania)
Adrian Gh. Podoleanu, Univ. of Kent (United Kingdom)


Published in SPIE Proceedings Vol. 8172:
Optical Complex Systems: OCS11
Gérard Berginc, Editor(s)

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