Screw for compression of bones, has head thread section with cutting thread, where external dimension and/or core dimension of thread and/or external dimension and/or core dimension of thread section is reduced with respect to screw thread
DE10357838A1
Device for cleaning the interdental space comprises dental floss that can be fastened to the head of an arm element and/or can be guided back to a clamping device, which also fastens the dental floss when it is guided toward the head
