Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Theoretical imaging study of early caries by a laser induced Rayleigh wave

Not Accessible

Your library or personal account may give you access

Abstract

Vivo human teeth are scanned by computed tomography through three-dimensional (3D) reconstruction technology. Geometric models of teeth are built. Based on that, a physical model of the laser induced acoustic waves propagating in teeth is established, and the finite element method is used to solve this physical model. As the velocity of the Rayleigh wave is sensitive to the elastic modulus of the teeth, the parameters, such as the position, demineralization degree, depth, and morphology of the caries, can be evaluated by the velocity field of the Rayleigh wave, which propagate in teeth. Furthermore, by the frequency domain characters of surface acoustic waves, the depth of the caries region can be evaluated. Therefore, the 3D evaluation method is established to develop the nondestructive and quantitative detection of the early stages of caries.

© 2017 Optical Society of America

Full Article  |  PDF Article
More Like This
Experimental and numerical studies for nondestructive evaluation of human enamel using laser ultrasonic technique

Kaihua Sun, Ling Yuan, Zhonghua Shen, Qingping Zhu, Jian Lu, and Xiaowu Ni
Appl. Opt. 52(28) 6896-6905 (2013)

Nondestructive evaluation of demineralized enamel in a human incisor and molar using laser ultrasonics

Kaihua Sun, Ling Yuan, Zhonghua Shen, and Qingping Zhu
Appl. Opt. 57(5) 1231-1240 (2018)

Scanning laser-line source technique for nondestructive evaluation of cracks in human teeth

Kaihua Sun, Ling Yuan, Zhonghua Shen, Zhihong Xu, Qingping Zhu, Xiaowu Ni, and Jian Lu
Appl. Opt. 53(11) 2366-2374 (2014)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved