According to the invention, the device allows for the disinfection or sterilization of toothbrushes in the following ways: using only the ultraviolet rays, using only sprays and / or disinfectant or sterilizing liquids or by using both ultraviolet rays and sprays and / or disinfectant or sterilizing liquids it comprises at least an outer casing (1), at least one container (2) containing a toothbrush (11), a base (3) that houses at least a collection tank (4), a source (5) and a reservoir (6) of spray or disinfectant or sterilizing liquid, at least one nozzle (10) in communication with the container (2) and at least one ultraviolet lamp (16) placed between each outer casing (1) and the container (2) housed in it said collection tank (4) is removable and washable.