Juvenile periodontitisis a term used to include different types of periodontitis affecting healthyyoung individuals. This entity affects persons on the second decade of life,and it has been divided into 2 forms: the localized and the generalized. Thecase of a 13-year-old black female student of choral singing, who had been underorthodontia treatment for a year and a half, and that after having the fixedappliances abandoned the follow-up, was presented. On the physical examination,it was detected a lesion of the marginal and papillary distribution with lossof gingival morphology, hardelastic consistency, fibroedematous aspect and darkpink colour with isolated melanic stains, gingivorrhagia, pain and mobilityin the anterosuperior teeth, and in a less scale in the anteroinferior, periodontalpockets of up to 8 mm, and horizontal and vertical bone losses localized insuperior and inferior incisors and in the first permanent molars, confirmedin the X-rays. The indicated treatment and the evolution of the case by imagingfollow-up was presented.