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Proceedings Paper

The advantages of a swept source optical coherence tomography system in the evaluation of occlusal disorders
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Paper Abstract

Occlusal disorders are characterized by multiple dental and periodontal signs. Some of these are reversible (such as excessive tooth mobility, fremitus, tooth pain, migration of teeth in the absence of periodontitis), some are not (pathological occlusal/incisal wear, abfractions, enamel cracks, tooth fractures, gingival recessions). In this paper we prove the advantages of a fast swept source OCT system in the diagnosis of pathological incisal wear, a key sign of the occlusal disorders. On 15 extracted frontal teeth four levels of pathological incisal wear facets were artificially created. After every level of induced defect, OCT scanning was performed. B scans were acquired and 3D reconstructions were generated. A swept source OCT instrument is used in this study. The swept source is has a central wavelength of 1050 nm and a sweeping rate of 100 kHz. A depth resolution determined by the swept source of 12 μm in air was experimentally measured. The pathological incisal wear is qualitatively observed on the B-scans as 2D images and 3D reconstructions (volumes). For quantitative evaluations of volumes, we used the Image J software. Our swept source OCT system has several advantages, including the ability to measure (in air) a minimal volume of 2352 μm3 and to collect high resolution volumetric images in 2.5 s. By calculating the areas of the amount of lost tissue corresponding to each difference of B-scans, the final volumes of incisal wear were obtained. This swept source OCT method is very useful for the dynamic evaluation of pathological incisal wear.

Paper Details

Date Published: 14 January 2014
PDF: 6 pages
Proc. SPIE 8925, Fifth International Conference on Lasers in Medicine: Biotechnologies Integrated in Daily Medicine, 89250W (14 January 2014); doi: 10.1117/12.2044198
Show Author Affiliations
Corina Marcauteanu, Univ. of Medicine and Pharmacy Victor Babes Timisoara (Romania)
Adrian Bradu, Univ. of Kent (United Kingdom)
Cosmin Sinescu, Univ. of Medicine and Pharmacy Victor Babes Timisoara (Romania)
Florin Ionel Topala, Univ. of Medicine and Pharmacy Victor Babes Timisoara (Romania)
Meda Lavinia Negrutiu, Univ. of Medicine and Pharmacy Victor Babes Timisoara (Romania)
Virgil Florin Duma, 3OM Optomechatronics Group, Aurel Vlaicu Univ. of Arad (Romania)
Adrian Gh. Podoleanu, Univ. of Kent (United Kingdom)


Published in SPIE Proceedings Vol. 8925:
Fifth International Conference on Lasers in Medicine: Biotechnologies Integrated in Daily Medicine
Carmen Todea; Adrian Gh. Podoleanu; Virgil-Florin Duma, Editor(s)

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