13 March 2009 Effect of masticatory load on crack deflection/penetration investigated with en-face optical coherence tomography in ceramic fixed partial dentures
Author Affiliations +
Proceedings Volume 7258, Medical Imaging 2009: Physics of Medical Imaging; 72584K (2009) https://doi.org/10.1117/12.813637
Event: SPIE Medical Imaging, 2009, Lake Buena Vista (Orlando Area), Florida, United States
Abstract
Optical Coherence Tomography (OCT) allows a better characterization of dental prostheses. The detection of substance defects within the ceramic layers for metal-ceramic prostheses was demonstrated. The detected defects have a large volume and therefore there is a high likelihood for fracture lines to be generated in the proximal areas of the ceramic fixed partial dentures. If the detection of such defects is feasible before inserting the prosthesis into the oral cavity, then timely corrective measures are possible in order to avoid the fracture of the ceramic component later on. After noninvasive localization of cracks in ceramic fixed partial dentures, the effect of the biaxial loading on crack deflection/penetration at the ceramic interface was investigated. A biaxial loaded geometry was numerically investigated using Finite Element Analysis in order to determine the energy release rate. The obtained results could be used in conjunction with criteria at interface for estimating the path of the crack after the interface was reached.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Cosmin Sinescu, Cosmin Sinescu, Meda Lavinia Negrutiu, Meda Lavinia Negrutiu, Liviu Marsavina, Liviu Marsavina, Radu Negru, Radu Negru, Mihai Hluscu, Mihai Hluscu, Cristiana Caplescu, Cristiana Caplescu, Adrian Bradu, Adrian Bradu, Michael Hughes, Michael Hughes, Mihai Rominu, Mihai Rominu, Adrian Gh. Podoleanu, Adrian Gh. Podoleanu, } "Effect of masticatory load on crack deflection/penetration investigated with en-face optical coherence tomography in ceramic fixed partial dentures", Proc. SPIE 7258, Medical Imaging 2009: Physics of Medical Imaging, 72584K (13 March 2009); doi: 10.1117/12.813637; https://doi.org/10.1117/12.813637
PROCEEDINGS
9 PAGES


SHARE
Back to Top