Share Email Print
cover

Proceedings Paper

Laser inactivation of periodontal bacteria using photosensitizing dyes
Author(s): Paul S. Golding; L. Maddocks; Terence A. King; D. B. Drucker
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

We demonstrate the killing of the oral bacteria Prevotella nigrescens using a photosensitizer and light from a 10 Hz, frequency doubled, Q-switched Nd:YAG pumped dye laser, with modified oscillator to increase output power. This system produced light at wavelengths close to 620 nm, the absorption maximum of the photosensitizing agent, malachite green isothiocyanate, a wavelength that is not significantly absorbed by tissue. A bacterial reduction of 97.5 percent was achieved at an energy density of 0.67 J/cm2 and exposure times of 300 seconds.

Paper Details

Date Published: 3 December 1996
PDF: 8 pages
Proc. SPIE 2922, Laser Applications in Medicine and Dentistry, (3 December 1996); doi: 10.1117/12.260669
Show Author Affiliations
Paul S. Golding, Univ. of Manchester (United Kingdom)
L. Maddocks, Univ. of Manchester (United Kingdom)
Terence A. King, Univ. of Manchester (United Kingdom)
D. B. Drucker, Univ. of Manchester (United Kingdom)


Published in SPIE Proceedings Vol. 2922:
Laser Applications in Medicine and Dentistry
Gregory B. Altshuler; Fausto Chiesa; Herbert J. Geschwind M.D.; Raimund Hibst; Neville Krasner M.D.; Frederic Laffitte; Giulio Maira; Reinhard Neumann; Roberto Pini; Hans-Dieter Reidenbach; Andre Roggan; Montserrat Serra I Mila, Editor(s)

© SPIE. Terms of Use
Back to Top
PREMIUM CONTENT
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?
close_icon_gray