Imaging of human tooth using ultrasound based chirp-coded nonlinear time reversal acoustics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F11%3A00359805" target="_blank" >RIV/61388998:_____/11:00359805 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0041624X11000229" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0041624X11000229</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ultras.2011.01.008" target="_blank" >10.1016/j.ultras.2011.01.008</a>

Result language
angličtina
Original language name
Imaging of human tooth using ultrasound based chirp-coded nonlinear time reversal acoustics
Original language description
The complexity of the tooth internal structure (enamel?dentine interface, cracks between internal tubules) is analyzed by adapting the nonlinear elastic wave spectroscopy (NEWS) with the objective of the tomography of damage. Optimization of excitationsis proposed using time reversal (TR) invariance, reciprocity, correlation properties, etc. The TR-NEWS approach is implemented on a third molar human tooth. A 10 MHz bandwidth ultrasonic instrumentation is used, including laser vibrometer and a 20 MHz contact piezoelectric transducer. Nonlinear signature coming from the symmetry properties is experimentally observed in the tooth using bi-modal TR-NEWS imaging after and before focusing induced by the time-compression process. The TR-NEWS polar B-scan ofthe tooth is described and suggested as a potential application for modern echodentography.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BI - Acoustics and oscillation
OECD FORD branch
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Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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