Abstract: The invention relates to a root canal instrument having a shank and a working area attached to the shank, wherein the working area consists of a nickel-titanium alloy comprising 38 to 46 at % nickel, 46 to 53 at % titanium and 5.5 to 8.8 at % copper. The invention relates to a root canal instrument having a shank and a working area attached to the shank, wherein the working area consists of a nickel-titanium alloy comprising 38 to 46 at % nickel, 46 to 53 at % titanium and 5.5 to 8.8 at % copper.

Abstract: The invention relates to an antibacterial implant coating composition including a graft copolymer comprising a (meth)acrylic acid-based backbone and phosphonate side chains, wherein at least one phosphonate side chain is linked to a guanidine oligomer through an N—P bond.

Abstract: The invention relates to a dental grinding instrument including a shaft and a grinding area arranged on the shaft, wherein the grinding area has a bonding layer and grinding elements including abrasive grains and spheres, and wherein the grinding elements are fixed to the shaft by means of the bonding layer.

Abstract: According to the invention, a preparation is described which contains at least one calcium compound selected from the group consisting of calcium phosphates, calcium fluorides and calcium fluorophosphates and hydroxyl derivatives and carbonate derivatives of these calcium salts, calcium hydroxides and calcium oxides precipitated using at least one protein component selected from proteins and protein hydrolysates, and at least one crosslinking agent for the protein component and/or non-set cement.

Abstract: A surgical coupling device for releasably connecting a handpiece to a surgical instrument, the handpiece being provided with a recess into which a coupling portion of the instrument can be detachably slid, an interior wall of the recess having formed thereon a locking recess with which a snap-in element can be brought into detachable engagement, the snap-in element being supported on the instrument, wherein the snap-in element is formed on a latch element which extends substantially in axial direction and which is radially shiftably supported on the instrument and which is biased by at least one elastic element radially outwards into an inoperative position, the latch element being movable by an actuating element against the bias of the elastic element into a release position.

Abstract: The present invention relates to a surgical saw blade comprising a clamping portion and a working area provided with a toothing, wherein a plurality of recesses are formed in the working area.

Abstract: The present invention relates to a method of producing a surgical saw blade comprising a clamping portion and a working area provided with a toothing, wherein the clamping portion and the working area are produced by means of an etching method and the toothing is subsequently cut by means of a laser type cutting method.

Abstract: The invention relates to a root canal instrument set comprising at least two root canal instruments, each root canal instrument being provided with a collar having a shaft end at one end and a working part including at least one cutting edge on the other end, the working part being shaped conically or crowned, wherein the cone angle of the working parts decrease from the preceding root canal instrument to the subsequent root canal instrument and the working part of the respectively preceding root canal instrument has a larger diameter than the working part of the respectively subsequent root canal instrument. Alternatively, the radii of the crowned working parts may increase from the preceding root canal instrument to the subsequent root canal instrument, and the working part of the preceding root canal instrument may have a larger diameter than the working part of the subsequent root canal instrument.

Abstract: The invention relates to a surgical saw blade having a flat, plate-shaped body (1) being provided with a toothing (2) at least one edge portion, said toothing comprising a plurality of uncrossed teeth, said teeth each consisting of groups comprising three teeth (3, 4, 5) of different shape, or wherein the toothing (2) comprises pairs (5, 6) of two teeth (3, 4) being arranged symmetrically to each other in relation to a plane perpendicular to the center plane of the body (1).

Abstract: The present invention relates to a method of producing a surgical saw blade comprising a clamping portion and a working area provided with a toothing, wherein the clamping portion and the working area are produced by means of an etching method and the toothing is subsequently cut by means of a laser type cutting method.

Abstract: The present invention relates to a surgical saw blade comprising a clamping portion and a working area provided with a toothing, wherein a plurality of recesses are formed in the working area.

Abstract: The present invention relates to a dental tool, in particular for grinding teeth, comprising a grinding head and a rotatingly drivable shaft, the grinding head being provided on its surface with at least one elevated portion which, during rotation of the grinding head works a surface to be prepared and defines a circle of rotation. The invention is characterized in that the elevated portion comprises an edge, and the edge is the side line of a surface that is situated at least at the leading side of the edge and that is retracted relative to the circle of rotation defined by the edge.

Abstract: The present invention relates to a dental tool, in particular for grinding teeth, comprising a grinding head and a rotatingly drivable shaft, the grinding head being provided on its surface with at least one elevated portion which, during rotation of the grinding head works a surface to be prepared and defines a circle of rotation. The invention is characterized in that the elevated portion comprises an edge, and the edge is the side line of a surface that is situated at least at the leading side of the edge and that is retracted relative to the circle of rotation defined by the edge.

Abstract: The present invention relates to a grinding tool for dental purposes comprising a support body which is covered at least in part with abrasive material, wherein at least a portion of the support body is provided with a honeycomb structure.