Patent ID: 8562345

Claim:
A device for fastening a dental prosthesis, comprising a bar patrix and a connecting part which can be attached to the dental prosthesis and has a recess into which the bar patrix can be inserted and which is surrounded by two side walls ( 11 , 12 ) which are connected via a ceiling element ( 13 ), wherein the side walls and the ceiling element are shaped such that the dental prosthesis, when placed onto the bar patrix by means of the connecting part attached thereon, rests on the bar patrix via a first support location, a second support location, and a third support location, wherein, as viewed in cross-section, a first free space extends over a first length from the first support location to the third support location, and a second free space extends over a second length from the second support location to the third support location, and the third support location extends over a third length, the third length being smaller than the first length and smaller than the second length, and wherein the ceiling element has undercuts for at least partially forming the free spaces.