Laser Photobiomodulation and Photodynamic Therapy - A Literature Review

Laser photobiomodulation and photodynamic therapy are new methods for bacteria elimination. The use of low-level laser therapy (LLLT), especially in a combination with a photosensitizer, leads to increase of the ATP production, improvement of the oxy-reduction potential of the cells, as well as bacteriolysis. Neither the dye itself, nor the lase, r is capable of reducing the number of bacteria as much as their combination. The advantages of these methods, compared to the use of antiseptics or antibiotics, are their local action, absence of systemic side effects and lack of need for maintaining high concentration of the dye.