SUMMARY
Palabras clave: Cierre de diastemas generalizados, cosmética dental, nanocomposite para muñones adhesivos, estética dental, resina compuesta dental. ABSTRACTIntroduction: The aesthetic restoration without metallic substratum in the anterior sector can be performed through direct method. It allows to reach a more natural aspect that the indirect restorations and to resist the occlusal loads in the same way, making possible not only to reconstruct teeth but to transform them, which makes ideal this procedure in the closing of widespread diastema those which are habitually resolved through secondary attention of prosthodontics or orthodontics, solutions of high cost and greater annoyance to the patient. Objective: To describe the procedure of aesthetic restoration without metallic support through direct method with nanocomposite as therapeutic alternative for the closure of widespread diastema. Case presentation: It is described the treatment imposed to a 53 year-old patient with antecedents of dental trauma with extraction of the 22 and complicated crown fractures in 12, 11 and 21 around 15 years ago, for which he received radical pulp-radicular treatments. The patient presented changes of severe coloration, besides the generalized diastema presence in the maxillary anterior sector, for which an integral restoration treatment through direct method was carried out by using a hybrid nanocomposite. Conclusions: The cosmetic treatment with nanocomposite without metallic substratum is a viable therapeutic alternative in the closing of the generalized diastema through direct method, even in patients with severe traumatized, dyschromia teeth with a radical pulp-radicular treatment.Key words: Closure of generalized diastema, dental cosmetics, nanocomposites for stumps adhesives, dental esthetics, permanent dental restoration.