the effects of low power lasers in healing of oral ulcers

it is the output power and density of the lasers which determine whether a laser is a low or high-power one. if the density is less than 670mw/cm2, the laser is called a low power one. the output power of these lasers is usually less than 250mw. they use different mechanisms to accelerate wound healing such as: cellular biostimulation, improvement of circulation, vasodilation, analgesic and anti-inflammatory effects. they don’t contribute to any drug resistance, therefore, several studies have been conducted on the application of these lasers for the curing of acute, chronic and recurrent ulcers such as mucositis, aphthous ulcers, herpetic lesions and lichen planus. in this article we will survey the effects of low-power lasers in the healing of oral ulcers.