Abstract: A cassette for storage of at least one medical instrument, the cassette including at least one spring sheet, the spring sheet including at least one holding means for retaining the medical instrument therein, the holding means including an aperture forming a passage through the spring sheet for receiving the medical instrument and at least one spring element provided adjacent to the passage for exerting a biasing spring force to retain the medical instrument within the passage, and wherein the spring sheet, including the holding means, is made of a metal or a metal alloy.

Abstract: A self-retaining screw assembly comprising a dental secondary component and a screw. The secondary component comprises a through passage having an apical and a coronal open end, and a screw seat located between said apical and coronal ends. The screw comprises a screw rod and a screw head, the screw head being dimensioned to abut against the screw seat and the screw rod being dimensioned to pass unhindered through the through passage such that the apical end of the rod can protrude from the apical end of the through passage. The through passage further comprises, coronal of the screw seat, a first section and, directly coronal of the first section a second section having a narrower diameter than the first section, such that the second section forms a restriction in the through passage. The screw head comprises a radially outwardly extending retaining element.

Abstract: A cassette for storage of at least one medical instrument, the cassette including at least one spring sheet, the spring sheet including at least one holding means for retaining the medical instrument therein, the holding means including an aperture forming a passage through the spring sheet for receiving the medical instrument and at least one spring element provided adjacent to the passage for exerting a biasing spring force to retain the medical instrument within the passage, and wherein the spring sheet, including the holding means, is made of a metal or a metal alloy.

Abstract: A self-retaining screw assembly comprising a dental secondary component and a screw. The secondary component comprises a through passage having an apical and a coronal open end, and a screw seat located between said apical and coronal ends. The screw comprises a screw rod and a screw head, the screw head being dimensioned to abut against the screw seat and the screw rod being dimensioned to pass unhindered through the through passage such that the apical end of the rod can protrude from the apical end of the through passage. The through passage further comprises, coronal of the screw seat, a first section and, directly coronal of the first section a second section having a narrower diameter than the first section, such that the second section forms a restriction in the through passage. The screw head comprises a radially outwardly extending retaining element.

Abstract: Analog positioner (50) for fitting an analog (14) into place during preoperative planning. The analog positioner (50) includes a holder (10) and at least one intermediate piece (210) for temporarily fixing the analog (14) to the holder (10). The holder (10) has a shaft (16) having a receptacle section (18), to be held in receptacle means of a computer-controlled positioning unit, and, adjoining axially thereto, a positioning section (20) having an attachment unit (22). The receptacle section (18) is arranged at a first holder end and the attachment unit (22) is arranged at a second holder end lying axially opposite the receptacle section (18). The positioning section (20) has a reference element (28).

Abstract: Combination of a dental implant and an insertion tool for inserting the dental implant into a bone of a patient. The dental implant includes an anti-rotation means having a non-circular cross-sectional contour with at least one planar force transmission surface in the form of an anti-rotation surface (7a, 7b, 7c, 7d). The insertion tool includes an anti-rotation means having a non-circular cross-sectional contour with at least one planar force transmission surface in the form of a torque transmission surface (11a?, 11a?; 11b?, 11b?; 11c?, 11c?; 11d?, 11d?). One of the anti-rotation means forms a recess (6), and the other forms a bolt (10) having a rotational axis and designed to be received in the direction of the rotational axis in the recess (6), such that the at least one anti-rotation surface and at least one torque transmission surface can cooperate to transmit torque between the parts.