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- Title
A Finite Element Study of Ultrasonic Wave Propagation in a Tooth Phantom.
- Authors
Ghorayeb, S. R.; Xue, T.; Lord, W.
- Abstract
Ultrasound is used extensively in industry for the detection and characterization of defects in critical engineering structures. Similar techniques could be used in dentistry if a thorough understanding of ultrasonic wave propagation in teeth were available. This paper presents a hypothesis that finite element analysis can be used to solve the hyperbolic partial differential equation which governs ultrasonic wave propagation in teeth. A three-layer tooth phantom based on the geometry of a human second molar is used to illustrate the validity of this hypothesis. Simulated wave propagation studies are described for the tooth phantom with a gold crown layer, with an amalgam restoration insertion, and containing a cavity. Results clearly show the finite element code's ability to predict and visualize ultrasonic wave propagation in complex dental structures.
- Subjects
ULTRASONIC waves; DIFFERENTIAL equations; DENTISTRY; FINITE element method; TEETH; MOLARS; ELASTIC waves
- Publication
Journal of Dental Research, 1998, Vol 77, Issue 1, p39
- ISSN
0022-0345
- Publication type
Article
- DOI
10.1177/00220345980770010301