In-vitro investigation of bactericidal effect and dentin permeability of an Nd:YAG laser

Brigitte Ragot-Roy; Claude Severin

doi:10.1117/12.230330

19 January 1996 In-vitro investigation of bactericidal effect and dentin permeability of an Nd:YAG laser

Brigitte Ragot-Roy, Claude Severin

Proceedings Volume 2623, Medical Applications of Lasers III; (1996) https://doi.org/10.1117/12.230330
Event: BiOS Europe '95, 1995, Barcelona, Spain

Abstract

The aim of this study was to investigate the effect of a pulsed Nd-YAG laser on E. coli and S. aureus in suspensions. The temperature increased in the bacterial suspensions after each irradiation according to power and dye concentration. The bactericidal effect was evaluated by comparing the number of viable bacteria remaining after 24 h in the irradiated and the control specimens. Afterwards, an in vitro study of dentin permeability on horizontal sections of healthy dentin has been carried out following an original method derived from Pashley's experimentation. The results indicate the parameters (1,5 W; 20 Hz; with black dye) which should be used to obtain the bactericidal effect. An undesirable rise in temperature and in dentin permeability has been observed and a S.E.M. examination has been carried out in order to explain this result.

Citation Download Citation

Brigitte Ragot-Roy and Claude Severin "In-vitro investigation of bactericidal effect and dentin permeability of an Nd:YAG laser", Proc. SPIE 2623, Medical Applications of Lasers III, (19 January 1996); https://doi.org/10.1117/12.230330

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available