摘要：Laser therapy is a new treatment option for its analgesic, anti-inflammatory and bio-stimulants properties and without significant adverse effects, for diseases such as oral Lichen Planus in its erosive form, characterized by chronic and painful ulcers with possibility of malignization, which obliges an adequate therapy. This article reports the clinical case taking into account ethical considerations framed in law 008430 of 1993 of a female patient 50 years old, with clinical and histopathological diagnosis of oral erosive Lichen Planus, who received initial treatment with corticoids local and systemic without improvement in 7 months; reason why is opted biostimulation with 980nm diode laser therapy, showing a significant reduction in the severity of injuries and decrease of pain from the first cycle of irradiation. Diode laser is safe and effective in this type of diseases treatment because it promotes healing, therefore it can be considered as an excellent alternative in cases of oral Lichen Planus resistant to corticotherapy.
