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Laser biomodulation in dentistry

The laser is an acronym for “light amplification by stimulated emission of radiation.” After the discovery of laser in 1960, it was very well appreciated that laser therapy has the ability to reduce pain, inflammation, swelling, and also improve wound healing. The dentists are now provided with a wide variety of lasers of different wavelengths and so they readily choose according to their needs of treatment. Each of the wavelengths has specific laser-tissue interactions. One such laser-tissue interaction is called “soft-tissue laser therapy or biostimulation or biomodulation.” This laser uses the specific wavelength from visible red to near-visible red in the electromagnetic spectrum ranging from 630 to 980 nm. Numerous researches on low-level laser therapy are documented in the literature over 30 years before. This review article gives an insight into the mechanism of action, its dosage, and emphasizes its application in dentistry.