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Ceramic and Polymeric Dental Onlays Evaluated by Photo elasticity, Optical Coherence Tomography and Micro Computed Tomography

Sinescu, C., Negrutiu, M., Topala, F., Ionita, C., Negru, R., Fabriky, M., Marcauteanu, C., Bradu, Adrian, Dobre, George, Marsavina, L., and others. (2011) Ceramic and Polymeric Dental Onlays Evaluated by Photo elasticity, Optical Coherence Tomography and Micro Computed Tomography. In: SPIE Proceedings Series. 8172. Spie-Int Soc Optical Engineering ISBN 978-0-8194-8798-8. (doi:10.1117/12.896717) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1117/12.896717

Abstract

Dental onlays are restorations used to repair rear teeth that have a mild to moderate amount of decay. They can also be used to restore teeth that are cracked or fractured if the damage is not severe enough to require a dental crown. The use of onlays requires less tooth reduction than does the use of metal fillings. This allows dentists to conserve more of a patient's natural tooth structure in the treatment process. The aims of this study are to evaluate the biomechanical comportment of the dental onlays, by using the 3D photo elasticity method and to investigate the integrity of the structures and their fitting to the dental support. For this optical coherence tomography and micro-computed tomography were employed. Both methods were used to investigate 37 dental onlays, 17 integral polymeric and 20 integral ceramic. The results permit to observe materials defects inside the ceramic or polymeric onlays situate in the biomechanically tensioned areas that could lead to fracture of the prosthetic structure. Marginal fitting problems of the onlays related to the teeth preparations were presented in order to observe the possibility of secondary cavities. The resulted images from the optical coherence tomography were verified by the micro-computed tomography. In conclusion, the optical coherence tomography can be used as a clinical method in order to evaluate the integrity of the dental ceramic and polymeric onlays and to investigate the quality of the marginal fitting to the teeth preparations. © 2011 SPIE.

Item Type: Conference or workshop item (Proceeding)
DOI/Identification number: 10.1117/12.896717
Uncontrolled keywords: Dental ceramic and polymeric onlays, Marginal fitting, Materials defects, Micro-computed tomography, Optical coherence tomography, Photo elasticity, Clinical methods, Dental ceramic, Dental crowns, Fitting problems, Marginal fitting, Metal filling, Microcomputed tomography, Natural teeth, Treatment process, Biomechanics, Ceramic materials, Computerized tomography, Defects, Dental materials, Elasticity, Investments, Patient treatment, Polymers, Rating, Restoration, Tomography
Subjects: Q Science > QC Physics
R Medicine > R Medicine (General) > R857.O6 Optical coherence tomography
R Medicine > RK Dentistry
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Giles Tarver
Date Deposited: 16 Jul 2015 13:11 UTC
Last Modified: 01 Aug 2019 10:39 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49397 (The current URI for this page, for reference purposes)
Dobre, George: https://orcid.org/0000-0002-5695-2591
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