22 March 2016 Marginal integrity evaluation of dental composite using optical coherence tomography
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Proceedings Volume 9670, Sixth International Conference on Lasers in Medicine; 967012 (2016) https://doi.org/10.1117/12.2192855
Event: Sixth International Conference on Lasers in Medicine, 2015, Bucharest, Romania
In clinical dental practice it is often difficult or even impossible to distinguish and control interfacial adhesive defects from adhesive restorations using visual inspection or other traditional diagnostic methods. Nonetheless, non-invasive biomedical imaging methods like Optical Coherence Tomography (OCT) may provide a better view in this diagnostic outline. The aim of this study is to explore evaluations of the marginal adaptation of class I resin composites restorations using Time Domain (TD) OCT. Posterior human teeth have been chosen for this study. The teeth were stored in 0.9% physiological saline solution prior to use. A classical round-shaped class I cavity was prepared and cavities were restored with Charisma Diamond composite by Heraeus Kulzer and using a system of etch and rinse boding. The specimens were subjected to water storage and then to thermo-cycling. Three dimensional (3-D) scans of the restoration were obtained using a TD-OCT system centered at a 1300 nm wavelength. Open marginal adaptation at the interfaces and gaps inside the composite resins materials were identified using the proposed method. In conclusion, OCT has numerous advantages which justify its use for in vitro, as well as for in vivo studies. It can therefore be considered for non-invasive and fast detection of gaps at the restoration interface.
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Adrian-Tudor Stan, Adrian-Tudor Stan, Andreea-Codruta Cojocariu, Andreea-Codruta Cojocariu, Anca Adriana Antal, Anca Adriana Antal, Florin Topala, Florin Topala, Cosmin Sinescu, Cosmin Sinescu, Meda Lavinia Negrutiu, Meda Lavinia Negrutiu, Virgil-Florin Duma, Virgil-Florin Duma, Adrian Gh. Podoleanu, Adrian Gh. Podoleanu, } "Marginal integrity evaluation of dental composite using optical coherence tomography", Proc. SPIE 9670, Sixth International Conference on Lasers in Medicine, 967012 (22 March 2016); doi: 10.1117/12.2192855; https://doi.org/10.1117/12.2192855

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