14 January 2014 Imaging of noncarious cervical lesions by means of a fast swept source optical coherence tomography system
Author Affiliations +
Non-carious cervical lesions (NCCL) are defined as the loss of tooth substance at the cemento-enamel junction and are caused by abrasion, erosion and/or occlusal overload. In this paper we proved that our fast swept source OCT system is a valuable tool to track the evolution of NCCL lesions in time. On several extracted bicuspids, four levels of NCCL were artificially created. After every level of induced lesion, OCT scanning was performed. B scans were acquired and 3D reconstructions were generated. The swept source OCT instrument used in this study has a central wavelength of 1050 nm, a sweeping range of 106 nm (measured at 10 dB), an average output power of 16 mW and a sweeping rate of 100 kHz. A depth resolution determined by the swept source of 12 μm in air was experimentally obtained. NCCL were measured on the B-scans as 2D images and 3D reconstructions (volumes). For quantitative evaluations of volumes, the Image J software was used. By calculating the areas of the amount of lost tissue corresponding to each difference of Bscans, the final volumes of NCCL were obtained. This swept source OCT method allows the dynamic diagnosis of NCCL in time.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Eniko Tunde Stoica, Eniko Tunde Stoica, Corina Marcauteanu, Corina Marcauteanu, Adrian Bradu, Adrian Bradu, Cosmin Sinescu, Cosmin Sinescu, Florin Ionel Topala, Florin Ionel Topala, Meda Lavinia Negrutiu, Meda Lavinia Negrutiu, Virgil Florin Duma, Virgil Florin Duma, Adrian Gh. Podoleanu, Adrian Gh. Podoleanu, "Imaging of noncarious cervical lesions by means of a fast swept source optical coherence tomography system ", Proc. SPIE 8925, Fifth International Conference on Lasers in Medicine: Biotechnologies Integrated in Daily Medicine, 89250Y (14 January 2014); doi: 10.1117/12.2044214; https://doi.org/10.1117/12.2044214

Back to Top