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Proceedings Paper

An optical coherence tomography investigation of materials defects in ceramic fixed partial dental prostheses
Author(s): Cosmin Sinescu; Meda Negrutiu; Michael Hughes; Adrian Bradu; Carmen Todea; Mihai Rominu; Philippe L. Laissue; Adrian Gh. Podoleanu
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Paper Abstract

Metal ceramic and integral ceramic fixed partial prostheses are mainly used in the frontal part of the dental arch because for esthetics reasons. The masticatory stress may induce fractures of the bridges. There are several factors that are associated with the stress state created in ceramic restorations, including: thickness of ceramic layers, mechanical properties of the materials, elastic modulus of the supporting substrate material, direction, magnitude and frequency of applied load, size and location of occlusal contact areas, residual stresses induced by processing or pores, restoration-cement interfacial defects and environmental defects. The fractures of these bridges lead to functional, esthetic and phonetic disturbances which finally render the prosthetic treatment inefficient. The purpose of this study is to evaluate the capability of optical coherence tomography (OCT) in detection and analysis of possible material defects in metal-ceramic and integral ceramic fixed partial dentures.

Paper Details

Date Published: 2 May 2008
PDF: 5 pages
Proc. SPIE 6991, Biophotonics: Photonic Solutions for Better Health Care, 69910O (2 May 2008); doi: 10.1117/12.780694
Show Author Affiliations
Cosmin Sinescu, Victor Babes Univ. of Medicine and Pharmacy of Timisoara (Romania)
Meda Negrutiu, Victor Babes Univ. of Medicine and Pharmacy of Timisoara (Romania)
Michael Hughes, Univ. of Kent (United Kingdom)
Adrian Bradu, Univ. of Kent (United Kingdom)
Carmen Todea, Victor Babes Univ. of Medicine and Pharmacy of Timisoara (Romania)
Mihai Rominu, Victor Babes Univ. of Medicine and Pharmacy of Timisoara (Romania)
Philippe L. Laissue, Univ. of Kent (United Kingdom)
Adrian Gh. Podoleanu, Univ. of Kent (United Kingdom)


Published in SPIE Proceedings Vol. 6991:
Biophotonics: Photonic Solutions for Better Health Care
Jürgen Popp; Wolfgang Drexler; Valery V. Tuchin; Dennis L. Matthews, Editor(s)

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