Research Papers

In vitro imaging of remaining dentin and pulp chamber by optical coherence tomography: comparison between 850 and 1280nm

[+] Author Affiliations
Déborah D. D. Fonsêca

Universidade Federal de Pernambuco, Graduate Program in Odontology, Recife, Pernambuco 50670-000, Brazil

Bernardo B. C. Kyotoku

Universidade Federal de Pernambuco, Department of Physics, Cidade Universitária, Recife, Pernambuco 50670-901, Brazil

Ana M. A. Maia

Universidade Federal de Pernambuco, Graduate Program in Odontology, Recife, Pernambuco 50670-000, Brazil

Anderson S. L. Gomes

Universidade Federal de Pernambuco, Graduate Program in Odontology and Department of Physics,Cidade Universitária, Recife, Pernambuco 50670-901, Brazil

J. Biomed. Opt. 14(2), 024009 (April 13, 2009). doi:10.1117/1.3103584
History: Received October 14, 2008; Revised January 07, 2009; Accepted January 09, 2009; Published April 13, 2009
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We report the application of optical coherence tomography (OCT) to generate images of the remaining dentin and pulp chamber of in vitro human teeth. Bidimensional images of remaining dentin and of the pulp chamber were obtained parallel to the long axis of the teeth, by two OCT systems operating around 1280 and 850nm, and compared to tomography images using the i-CAT® Cone Beam Volumetric Tomography system as the gold standard. The results demonstrated the efficacy of the OCT technique; furthermore, the wavelength close to 1280nm presented greater penetration depth in the dentine than 850nm, as expected from scattering and absorption coefficients. The OCT technique has great potential to be used on clinical practice, preventing accidental exposure of the pulp and promoting preventive restoration treatment.

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© 2009 Society of Photo-Optical Instrumentation Engineers

Citation

Déborah D. D. Fonsêca ; Bernardo B. C. Kyotoku ; Ana M. A. Maia and Anderson S. L. Gomes
"In vitro imaging of remaining dentin and pulp chamber by optical coherence tomography: comparison between 850 and 1280nm", J. Biomed. Opt. 14(2), 024009 (April 13, 2009). ; http://dx.doi.org/10.1117/1.3103584


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