Teething device for an infant, with a substantially arc-shaped and elastically deformable teething element having two free end areas spaced apart from each other in an unloaded rest position, wherein the teething element forms a free gap between the end areas in the rest position and is substantially circular, and the arc-shaped teething element substantially simulates the shape of the jaw in such a way that, when it is inserted into the mouth and is substantially congruent with the jaw, the end areas are arranged in the area of the molars in the rest position of the teething element, wherein the free gap has an opening angle of between 15° and 35°, measured from the internal apex of the opening, and the arc-shaped teething element is elastically deformable in such a way that the two end areas can be arranged at least partially overlapping each other in a securing position.
