Echodentography based on nonlinear time reversal tomography: Ultrasonic nonlinear signature identification

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F12%3A00199601" target="_blank" >RIV/68407700:21340/12:00199601 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/1.3703171" target="_blank" >http://dx.doi.org/10.1063/1.3703171</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.3703171" target="_blank" >10.1063/1.3703171</a>

Result language
angličtina
Original language name
Echodentography based on nonlinear time reversal tomography: Ultrasonic nonlinear signature identification
Original language description
This paper examines possibilities of using Nonlinear Elastic Wave Spectroscopy (NEWS) methods in dental investigations. Themain task consisted in imaging cracks or other degradation signatures located in dentin close to the Enamel-Dentine Junction (EDJ).NEWS approach was investigated experimentally with a new bi-modal acousto-optic set-up based on the chirp-coded nonlinear ultrasonic time reversal (TR) concepts. Complex internal structure of the tooth is analyzed by the TR-NEWS procedure adapted to tomography-like imaging of the tooth damages. Ultrasonic instrumentation with 10 MHz bandwidth has been set together including laser vibrometer used to detect responses of the tooth on its excitation carried out by a contact piezoelectric transducer. Bi-modal TR-NEWS images of the tooth were created before and after focusing, which resulted from the time compression. The polar B-scan of the tooth realized with TR-NEWS procedure is suggested to be applied as a new echodentography imaging.
Czech name
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Czech description
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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