Abstract: The invention relates to a rotatory body (3, 203, 17), in particular part of an implant body (1, 101, 201, 301), that penetrates a jaw bone, and has a central internal channel (15, 25) which completely pierces the rotatory body (3, 203, 17) along its axial extension.

Abstract: An anchor for a prosthetic superstructure which can be connected with an implant includes a mounting part having threads engageable with the implant and a connecting piece supported on the mounting part for connecting with an anchor head for a dental prosthesis, the mounting part including a partial spherical space which accommodates the connection piece. The partial spherical space has a partial spherical wall, the mounting part further including a threaded pasage and a threaded member threaded in the threaded passage and fixing the connecting piece on the mounting part in an aligned disposition.

Abstract: A prosthetic superstructure has a locking device, which can be placed on a spherical head or on a similar connecting part of an implant and fixed to this and which can be accommodated in a dental prosthesis. The locking device includes locking parts, which can be moved by means of an adjusting element into and out of a locking engagement with the spherical head of the implant and the end of the adjusting element, can be actuated by means of an artificial tooth, which is disposed in the dental prosthesis close to the locking device.