Dental fluorosis is a malformation of the dental enamel, which is characterized by an increase in its porosity and permeability, and variations in the clinical presentation in relation to the time and amount of fluoride consumed by the patient. The case of a male patient, 22 years old, with no pathological history or allergy to medications or chemical substances, goes to the dental office reporting dissatisfaction with his dental appearance. After clinical radiographic study, the diagnosis of mild fluorosis was established according to the Dean Index, and microabrasion with 6% hydrochloric acid was chosen as treatment. The procedure followed is described and the different management options for dental fluorosis are discussed. Dental fluorosis is widely present both worldwide and in Ecuador. However, many patients are unaware of their condition and do not receive adequate treatment. Microabrasion was the technique of choice for this case, due to the effectiveness and stability of its results already reported. The management of the patient with dental fluorosis must be individualized, the use of a minimally invasive technique, such as microabrasion with 6% hydrochloric acid, turned out to be a safe and effective method of treatment, which provides the patient with adequate dental aesthetics, and improves your quality of life