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DOI 10.1515/plm-2012-0044Photon Lasers Med 2012; 1(4): 231234 Editorial Renaissance der Low-Level-Laser(Licht)therapie LLLT This special issue on low-level laser (light) therapy (LLLT) has been assembled by soliciting individual contributions from a broad spectrum of specialists in the field throughout the world. LLLT also known as photobiomodulation, is the drug-free, non-invasive and safe (FDA approved) clinical application of light usually produced by low to mid power lasers or light emitting diodes (LED) with a power output in the range of 1500 mW to a patient to promote tissue regeneration and healing, reduce inflammation and relieve pain. The light is typically of narrow spectral range (140 nm bandwidth), in the visible (red) or near infrared (NIR) spectrum (6001000 nm), and achieves an average power density (irradiance) between 1 mW/cm2 and 5 W/cm2 [1]. The reason why the technique is termed "lowlevel" or "cold laser" therapy is that the optimum level of energy density (J/cm2) delivered to the tissues is low when compared to other forms of laser therapy such as those used for ablation, cutting, and thermally coagulating tissue. In general, the power densities used for LLLT are lower than those needed to produce heating of tissue (i.e.,
Photonics & Lasers in Medicine – de Gruyter
Published: Nov 1, 2012
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