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Proceedings Paper

Comparative laser Doppler measurement on tooth pulp blood flow at 632 and 750 nm
Author(s): P. Ake Oberg; Hans Pettersson; Hakan Rohman
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Paper Abstract

Laser-Doppler flowmetry has been used for the assessment of pulp blood flow in health and disease. General purpose laser Doppler instruments working at the Helium-Neon (632,8 nm) as well as IR (750 - 810 nm) wavelengths have been used in this application. Specially designed handheld equipment has also been used to assess blood supply to the tooth. A considerable difference in the measurement results have been noticed when using different wavelengths and probe designs. In this study some of the problems related to the use of various wavelengths and probe designs are studied in human teeth and in a physical model of a tooth. Our results support the early observation that measurements at different wavelengths and with different probe designs cannot be directly compared.

Paper Details

Date Published: 31 December 1993
PDF: 7 pages
Proc. SPIE 2080, Dental Applications of Lasers, (31 December 1993); doi: 10.1117/12.166182
Show Author Affiliations
P. Ake Oberg, Univ. of Linkoping (Sweden)
Hans Pettersson, Univ. of Linkoping (Sweden)
Hakan Rohman, Univ. of Linkoping (Sweden)

Published in SPIE Proceedings Vol. 2080:
Dental Applications of Lasers
Gregory B. Altshuler; Raimund Hibst, Editor(s)

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