An implant-supported overdenture may be practically advantages over conventional complete denture and removable partial denture; these reduce bone resorption, greater prosthesis sta bility, improved maintenance and better esthetics. Implant supported overdenture may reduce the amount of soft-tissue coverage and extension of the prosthesis. Hygiene condition and home maintenance procedures are improved with the over denturecomparedwithfixedprosthesis.Implantsupported overdenture limits lateral movements and consequently minimize soft-tissue trauma. Greater stability of implant-supported over denture drives from mechanical attachment of the implant support system retaining the restoration. In severe resorption cases,thisisabetteralternativethanthefixedrestoration.

El hematoma epidural es una complicación frecuente del trauma craneoencefálico cerrado, sin embargo, es infrecuente la presentación de manera bilateral y se asocia a elevada morbimortalidad. Presentamos un caso de paciente masculino de 28 años victima de accidente de transito quien presenta hematoma epidural inicialmente unilateral, y que después de 4 días se convierte en un hematoma epidural bilateral. Source of support: Nil Conflict of interest: None ABSTRACTEpidural hematoma is a frequent complication of closed craneoencephalic trauma, however, bilateral presentation is nonfrequent and it is associated with high morbimortality. We report a case of a male patient who suffered a road traffic accident and has unilateral epidural hematoma, which, after 4 days, becomes bilateral epidural hematoma.