3 January 2011 Radiographic, microcomputer tomography, and optical coherence tomography investigations of ceramic interfaces
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Proceedings Volume 7990, Optical Sensors and Biophotonics II; 79900W (2011) https://doi.org/10.1117/12.890272
Event: Asia Communications and Photonics Conference and Exhibition, 2010, Shanghai, Shanghai, China
Abstract
Imagistic investigation of the metal-ceramic crowns and fixed partial prostheses represent a very important issue in nowadays dentistry. At this time, in dental office, it is difficult or even impossible to evaluate a metal ceramic crown or bridge before setting it in the oral cavity. The possibilities of ceramic fractures are due to small fracture lines or material defects inside the esthetic layers. Material and methods: In this study 25 metal ceramic crowns and fixed partial prostheses were investigated by radiographic method (Rx), micro computer tomography (MicroCT) and optical coherence tomography (OCT) working in Time Domain, at 1300 nm. The OCT system contains two interferometers and one scanner. For each incident analysis a stuck made of 100 slices was obtain. These slices were used in order to obtain a 3D model of the ceramic interface. Results: RX and MicroCT are very powerful instruments that provide a good characterization of the dental construct. It is important to observe the reflections due to the metal infrastructure that could affect the evaluation of the metal ceramic crowns and bridges. The OCT investigations could complete the imagistic evaluation of the dental construct by offering important information when it is need it.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Cosmin Sinescu, Meda Lavinia Negrutiu, Ciprian Ionita, Florin Topala, Emanuela Petrescu, Roxana Rominu, Daniela Maria Pop, Liviu Marsavina, Radu Negru, Adrian Bradu, Mihai Rominu, Adrian Gh. Podoleanu, "Radiographic, microcomputer tomography, and optical coherence tomography investigations of ceramic interfaces", Proc. SPIE 7990, Optical Sensors and Biophotonics II, 79900W (3 January 2011); doi: 10.1117/12.890272; https://doi.org/10.1117/12.890272
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