Can I read Phototoxicity of argon laser irradiation on biofilms of Porphyromonas and Prevotella species on EtoBox?

Phototoxicity of argon laser irradiation on biofilms of Porphyromonas and Prevotella species by Clay A. Henry; Barbara Dyer; Martin Wagner; Mel Judy; James L. Matthews is a Medicine article available to read on EtoBox.

What is Phototoxicity of argon laser irradiation on biofilms of Porphyromonas and Prevotella species about?

Species of Prevotella (Pr.) and Porphyromonas (Po.) and other microorganisms were cultivated as biofilms on agar medium and examined for their susceptibility to argon laser irradiation (continuous mode; wavelengths, 488-514 nm; fluences, 20-200 J cm(-2)). Fluences of 35 to 80 J cm(-2) inhibited biofilm growth in Po. endodontalis, Po. gingivalis, Pr. denticola, Pr. intermedia, Pr. melaninogenica and Pr. nigrescens. A fluence of 70 J cm(-2) did not affect biofilm growth in species of Bacillus, Candida, Enterobacter, Proteus, Pseudomonas, Staphylococcus and Streptococcus. The phototoxic effects of argon laser irradiation against Prevotella and Porphyromonas species were: (1) caused by the radiation alone; (2) modified by biofilm age; (3) dependent on the presence of atmospheric oxygen; (4) influenced by medium supplements of hemin, hemoglobin and blood; (5) greater when compared with other microbial species; (6) demonstrated without augmentation with an exogenous photosensitizer; and (7) apparently unrelated to the protoporphyrin content of the cells. Overall, these in vitro findings suggest that low doses of argon laser radiation may be effective in the treatment and/or prevention of

Who reads Phototoxicity of argon laser irradiation on biofilms of Porphyromonas and Prevotella species?

Author

Clay A. Henry; Barbara Dyer; Martin Wagner; Mel Judy; James L. Matthews

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1011-1344)

Published

1996

Language

EN

Field

Medicine (Physical Sciences)