Abstract: The present invention relates to the use of a preparation of an active enamel matrix substance, such as an amelogenin, for the manufacture of a pharmaceutical composition for modulating an immune response. The composition can be used in preventing and/or treating a condition or disease in a mammal that is characterised by said mammal presenting an imbalance in its native immune response to an internal and/or external stimuli, i.e. wherein at least a part of said mammal's immune system is stimulated non-discriminatingly, reacts hypersensitively to said immunogen, or fails to react to said stimuli. Said condition can typically either be systemic or local, such as a systemic and/or post-traumatic whole-body inflammation or an autoimmune disease.

Abstract: The invention relates to the examination of a dental prosthesis, wherein the dental prosthesis is examined with finite element methods. Furthermore, the invention relates to the automated manufacture of a dental prosthesis, wherein the shape of a remaining tooth area is directly determined on the basis of the remaining tooth area itself. Furthermore, the invention relates to a method, wherein manufacturing data (milling data) which have been created with a system for calculating manufacturing data (system for calculating milling data) are optionally forwarded to one or another manufacturing machine (milling machine) at different locations.

Abstract: A method and apparatus for producing data for making dental prostheses, wherein the data can be produced on the basis of a model (2) which comprises individual segments (3a, 3b, 3c, . . . ), such as representing a tooth, a preparation, a gingival area, a tooth gap or a small group of teeth, from different directions in space, and a storing device for storing the shape data obtained thereby, and—second shape data (12) of only the one segment (3a, 3b, 3c, . . . ), only part of the segment (3a, 3b, 3c, . . . ) being scanned, and the segment (3a, 3b, 3c, . . . ) being arranged in a fixed orientation relative to a reference, and b) a comparing device for comparing the first and second shape data (1, 12) to determine the orientation of the first shape data (1) relative to the reference.

Abstract: The present invention relates to the use of a preparation of an active enamel matrix substance, such as an amelogenin, for the manufacture of a pharmaceutical composition for modulating an immune response. The composition can be used in preventing and/or treating a condition or disease in a mammal that is characterised by said mammal presenting an imbalance in its native immune response to an internal and/or external stimuli, i.e. wherein at least a part of said mammal's immune system is stimulated non-discriminatingly, reacts hypersensitively to said immunogen, or fails to react to said stimuli. Said condition can typically either be systemic or local, such as a systemic and/or post-traumatic whole-body inflammation or an autoimmune disease.

Abstract: A method for manufacturing one or several dental prostheses, comprising the steps of: performing a rapid prototyping method for manufacturing one or several dental prostheses and subsequent working, such as reworking, of the one or several dental prostheses with a machining method, such as a milling method. In addition, a method for creating a data record which can be used for a rapid prototyping method for manufacturing a dental prosthesis wherein an end data record is obtained from a starting data record, so that in at least one area of a dental prosthesis manufactured with the end data record excess material is provided, compared to a dental prosthesis manufactured with the starting data record.

Abstract: The invention relates to an osteophilic implant having improved osteointegration characteristics. The implant consists of titanium or a titanium alloy and is suitable for the implantation in bones. The implant is provided with a rouge, hydroxylated and hydrophilic surface which is at least sealed in a gastight and liquidtight covering. The interior of said covering is provided with an inert atmosphere, preferably consisting of nitrogen, oxygen and/or inert gas and/or is at least partially filled with purified water which optionally contains additives. The invention also relates to a method for producing the same.

Abstract: The invention relates to a connection between a known dental implant (1) and a straight or angular abutment (2) which can be established by means of a base screw (3) and a support ring (4). The support ring (4) is fixedly introduced into the inlet of the abutment (2) near the lower edge of same, preferably by welding or by bending over of the lower edge of the abutment (2). Before insertion of the support ring (4) the base screw (3) is introduced head first into the inlet (24) from the side of the root part of the abutment. The base screw is held in the abutment (2) by the support ring (4) on which the base screw (3) rests. The threaded shank (32) of the base screw (3) engages the inner thread (14) provided for in the implant (1) and draws the abutment (2) into the receiving hole (12) of the implant (1). An angled surface of the base screw (3) and a beveled surface of the support ring (4) contact each other so that the welding seam or bent over lower edge of the abutment (2) are relieved of axial stress.

Abstract: The proposal is for a holding element (100) which can be screwed into the internally threaded bore (14) of the implant (1) even during production of the latter and can thus be used to grip or hold the implant for the following production phases. Furthermore, the holding element (100) serves to fix an implant (1), which is screwed thereto, inside an ampoule (200) and for the application of a screwing-in tool for implantation. The particular feature of the ampoule (200) lies in the fact that it has a large-area, lateral cutout (231) in the casing and also a fixing part (210) for accommodating the holding element (100) in a clamped manner. The implant (1) can thus be pulled laterally out of the ampoule (200). The devices facilitate handling of the implant (1) during production and insertion into the bone.

Abstract: A healing cap (100) is distinguished by a bevel (116), particularly in the region to be positioned labially, the bevel being advantageous for conditioning the soft parts, as well as a firm bearing on the associated implant (1), which is achieved by means of a mating shoulder (115) and an adaptable end portion (121) of a pin (120) or a centering bead. An occlusally applicable screw (200) can be mounted in the healing cap (100) beforehand, making it easier to handle. A special protective cap is provided as an intermediate treatment and as a temporary sealing element.

Abstract: An impression system includes an impression cap (4) for transferring an end, protruding from a human tissue structure, of an implant (1) which is fitted in the human body, including possible superstructures, to a master cast. The outwardly directed implant end has an undercut contour on its outside, and the impression cap (4) has a geometry which complements the undercut contour and engages therein. The undercut contour is formed either by an implant geometry tapering in a trumpet shape towards the implant bed, or by a recess near the implant end. Taking an impression and producing a master cast are greatly simplified with the impression system. In addition, the actual geometrical situation on the patient can be transferred to the master cast with greater precision.

Abstract: The connection arrangement between an implant (1) and a straight or angled abutment (800) can be produced using a clamping screw (400) and an expanding ring (500). An inlet (830) is provided in the abutment (800), and near the lower end of the abutment (800) this inlet (830) is widened via a radially encircling groove (835). The expanding ring (500) through which the clamping screw (400) passes is supported in the groove (835), the head (410) of the clamping screw (400) pressing on the expanding ring (500), and its threaded segment (430) engaging in the threaded bore (21) of the implant (1). The clamping screw (400) can be pushed from below into the inlet (830), with the expanding ring (500) pushed on and with the head (410) leading. The implant (1) can have a non-rotationally symmetrical receiving contour on the inner cone, primarily an inner polygon, and the abutment (800) advantageously has a counter-contour complementary to the receiving contour. A special screwdriver is used for screwing.

Abstract: The significant inventive measure of the arrangement for connecting an implant (1) to the conical secondary part (800) consists in the fact that a radially encircling shoulder part (860) is provided on the conical pillar (830), which shoulder part bears, in the form of an circular ring and partially, on the implant shoulder (14), while the remaining surface on the implant shoulder (14) is covered by the mating shoulder (301) of the impression cap (300) or the crown cap. The shoulder part (860) and the mating shoulders (301) are of complementary configuration to the implant shoulder (14). The connection arrangement can be used in particular in conjunction with a novel plug connection. Further advantages consist in the higher precision in dentistry work which can be achieved without any increased production outlay.

Abstract: For a dental implant (10) which can be inserted into the jaw bone (1) and which is intended principally as a support for a crown or another superstructure, an anchoring base (30) which s can be fitted releasably on the implant (10) was created for the purpose of preliminary orthodontic treatment. The vertical outer sides of the anchoring base (30) are designed as fastening surfaces (31). A bracket (50) can be fixed on a selected fastening surface (31) by means of a bonding layer (60). Orthodontic apparatus components (70, 71) are fastened on this bracket (50). The anchoring base (30) is screwed onto the implant (10) using an occlusal screw (80) and in the process can be locked in a finely adjustable position of rotation. The eccentrically arranged bore (37) promotes adaptation to the spatial conditions and to the orthodontic task. The anchoring base (30) is suitable for a wide range of types of implants (10) and brackets (50).

Abstract: The torque wrench (1) comprises a torque instrument (10) which is known per se--in the present case a ratchet instrument--as well as a torque indicator (40) which can be attached thereto. The torque indicator (40) possesses a sleeve-shaped support (41) which can be pushed onto the handle (12) of the torque instrument (10) and on which a linearly elastic bending rod (51) is fastened. Upon operation, the force (F) is exerted upon the free end of the bending rod (51) and the torque generated is displayed on a graduation (48). At its very front the support (41) possesses a non-rotationally symmetrical insertion zone (42) which receives the transition region (121) of the handle (12) in a manner fixed against rotation. The principal advantages of the torque wrench (1) are its dismantlability and the combination possibilities. The display accuracy of the torque indicator (40) is checked using a special test device.

Abstract: The device (1) for forming a dental prosthesis has at least one support (3) with a base (4) which in the use of the device (1) is inserted into a jawbone (13) of a patient or into a jaw model. The support (3) has a conical bearing surface (4n) and also a shoulder (7e) which faces the base (4) and for example is formed by a flank of an annular groove (7d). The device (1) has for the or each support (3) a cap (8) which bears with a conical countersurface (8f) on the conical bearing surface (4n) of the support (44) when the device (1) has been assembled. The cap (8) has a hole (8k) with an internal thread (8m) and with an axis (11) which forms an angle with the axis (10) of the two conical surfaces (4n, 8f). A screw (9) screwed into the hole (8k) engages with a tapering end section (9b) on the outer border (7f) of the shoulder (7e) and thus presses the countersurface (8f) against the bearing surface (4n).

Abstract: A case for dental instrument including a container, a lid for closing the container, a tray, and an insert arranged alongside of the container and including an instrument-receiving unit having a holder and a carrier and pivotable between a folded down position and an opened, vertical position, axle elements for supporting the instrument-receiving unit for pivotal movement, and elements for releasably holding the instrument-receiving unit in the opened position, with the carrier being provided with instrument-receiving insert openings and the holder being provided with stop arms for retaining the instruments in the insert openings.

Abstract: The prevailing opinion, supported by observations, has been in the art, that any implant of titanium or of another similar material is to have a contact surface roughness of more than 20 .mu.m to yield a good bond between bone and implant. The present invention is based upon the recognition, that the bond between bone and implant may be substantially improved by providing the contact surface of the implant with a micro-roughness of 2 .mu.m or less. According to the method of the invention such micro-roughness can be readily produced by subjecting the contact surface to pickling in a reducing acid.

Abstract: A implant is disclosed particularly for the jawbone, including a diaphragm and a carrier having an elongated column-like central portion and a frame supporting the central portion, as well as spikes for anchoring the carrier into the jawbone. An intermediate piece for fastening the diaphragm at the end of the central portion is also disclosed. The implant facilitates favorable conditions for growth of the bone tissue so that bone material grows into a space covered by the diaphragm due to the solid anchoring of the implant into the jawbone.

Abstract: The device for fixing a dental prosthesis has a base which can be inserted into a jaw bone, an abutment and a shell. The base has a hole with a mouth at its end face, with an internal thread and with an extension and has a conical annular surface enclosing the mouth of the hole. The abutment has a thread part which passes through the shell in the assembled device and is screwed into the internal thread of the base, and an outer part located outside the base and serving for holding a dental prosthesis. In the assembled device, the shell fits into the extension of the hole and rests with a conical outer surface firmly against a conical inner surface of the base. Furthermore, the outer part of the abutment rests with a conical stop surface firmly against the annular surface of the base. In the assembled device, the abutment is connected to the base in a stable manner and covers its end face without leaving gaps.

Abstract: A implant is disclosed particularly for jawbone, comprising a diaphragm and a carrier having an elongated column-like central portion and a frame supporting the central portion, as well as spikes for anchoring the carrier into the jawbone. An intermediate piece for fastening the diaphragm at the end of the central portion are also disclosed. The implant facilitates favorable conditions for growth of the bone tissue so that bone material grows into a space covered by the diaphragm due to the solid anchoring of the implant into the jawbone.