Oral erythema is a rare and potentially malignant disease of oral mucosa with a high tendency to cancer.Traditional surgery is difficult to remove the lesion while preserving the beauty and function of the affected area.Erbium laser is widely used in the treatment of oral diseases and has certain advantages in the treatment of oral erythema.This paper reports a case of excision of large area of oral erythema with erbium laser fractional treatment.
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