The invention relates to an adapter (1 1 ) for attaching a dental superstructure (50) to a dental implant (30). The adapter (1 1 ) comprises a coronal attachment portion (2 2 ) for attaching the adapter (1 1 ) to the dental superstructure (50) an apical attachment portion (4) for attaching the adapter (1 1 ) to the dental implant (30) and an intermediate portion (6) arranged between the coronal attachment portion (2 2 ) and the apical attachment portion (4). The apical attachment portion (4) is a protrusion defining an apical end portion of the adapter (1 1 ) and configured to be received in a corresponding recess (32) of the dental implant (30). The protrusion is rotationally symmetric so that the adapter (1 1 ) is rotatable relative to the dental implant (30) in the state of attachment of the adapter (1 1 ) to the dental implant (30). Further the invention relates to a dental assembly comprising the dental superstructure (50) and at least one such adapter (1 1 ).
