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EP3033038A1 - Dispositif de maintien pour une ébauche de butée, système constitué par le dispositif de maintien et l'ébauche de butée et procédé pour maintenir et usiner l'ébauche de butée - Google Patents

Dispositif de maintien pour une ébauche de butée, système constitué par le dispositif de maintien et l'ébauche de butée et procédé pour maintenir et usiner l'ébauche de butée

Info

Publication number
EP3033038A1
EP3033038A1 EP14750365.0A EP14750365A EP3033038A1 EP 3033038 A1 EP3033038 A1 EP 3033038A1 EP 14750365 A EP14750365 A EP 14750365A EP 3033038 A1 EP3033038 A1 EP 3033038A1
Authority
EP
European Patent Office
Prior art keywords
holding
abutment
receptacle
blank
holding device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14750365.0A
Other languages
German (de)
English (en)
Inventor
Frank Fix
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Medentika GmbH
Original Assignee
Medentika GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medentika GmbH filed Critical Medentika GmbH
Priority to EP14750365.0A priority Critical patent/EP3033038A1/fr
Publication of EP3033038A1 publication Critical patent/EP3033038A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0022—Blanks or green, unfinished dental restoration parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material

Definitions

  • the present invention relates to a holding device for a dental abutment blank for holding the blank, an abutment blank, a system comprising a Abutmentrohling and a holding device for holding the
  • Blank as well as a method for holding and processing a Abut- ment blank by means of a holding device.
  • Implant is embedded in the jawbone of the patient. On this
  • Implant is inserted an abutment that provides a pin-like structure that corresponds to a tooth stump in a crown.
  • the artificial dentures set on the abutment.
  • the artificial tooth is individually modeled so that it replaces the original tooth as faithfully as possible and adapts to the existing natural teeth as inconspicuously as possible.
  • the abutment must also be individually adapted.
  • the abutment In order to achieve a desired position, the abutment is inserted in a rotationally fixed position in the implant.
  • the implant-abutment connection provides the implant interface that is part of the abutment. This establishes a positive connection to the implant.
  • the abutment is a custom-made one with high-quality dentures, it is manufactured by the dental laboratory in each individual case.
  • abutment blanks are available that already provide the implant interface, also called the implant connection.
  • This dental abutment blank is individually processed by the dental technician. However, this is the case
  • the implant interface usually has an indexing outer contour and is usually manufacturer-specific. It allows the abutment to be inserted into the implant in predetermined rotational positions.
  • Abutments can then be done in the dental laboratory. As a rule, an emergence profile is modeled with a shoulder which is adjacent to the implant connection. Thereafter, proceed in the direction of the implant interface. The tailor-made end is followed by the individual construction. It provides the support surface for the artificial tooth and essentially corresponds to a tooth stump.
  • Abutmentrohlinge devices for holding the blanks are known in which the implant is simulated.
  • the holder consequently has a receptacle corresponding to the implant, in which the abutment blank with its implant connection can be inserted and held.
  • the abutment blank is mounted on a so-called laboratory implant, which in turn is fixed in the receptacle of the holder.
  • the blank and the laboratory implant are screwed together. In this way, a processing of Abutmentrohlings is possible. Since the implant interface has an outer contour, which is usually an external hexagon, the position of the blank in the holder is crucial for processing, in particular
  • the processing can generally also be automated with processing machines or milling machines. Since the abutment blank is held on the implant connection, the blank body can be processed freely. In this way, an abutment individually designed for the patient can be created.
  • EP 2754408 also shows a holder for receiving abutment blanks, which guarantees a predetermined position of the blank. However, the holder does not allow automated processing of the blank in a single operation since the blank is not freely accessible.
  • a holding device for holding a dental Abutmentrohlings according to claim 1 comprising a system comprising send a dental Abutmentrohling and a holding device for holding the blank according to claim 2 and with a method for holding and processing a Abutmentrohlings according to claim 1 1.
  • the invention is further based on the finding that the abutment blank can also be held on a region (holding section) spaced from the implant interface, preferably on a region of the blank body of the abutment blank that is distal to the implant interface. While the industrially prefabricated implant connection is arranged at the first end of the blank body, a holding section is preferably provided on the blank body at another point of the blank body, which is spaced from the implant interface. The holding section is preferred
  • the implant interface usually has a clear outer contour for a clear fit in the implant.
  • the outer contour may, for example, have the shape of an external hexagon, a polygon or a polygon
  • Abutments allowed. The clear alignment of the abutment or the abutment of the abutment with respect to the interface or the outer contour of the implant interface must already in the manufacture of the abutment from the Blank to be considered. It has been recognized that a very precise and unambiguous alignment is required for high quality abutments, and alignment has a major impact on the quality of the fit of the abutment and the artificial tooth in the mouth. A misalignment or 5 large tolerances cause a false seat in the mouth, so that the artificial tooth generates pressure on the adjacent teeth. An inaccurate fit promotes the penetration of bacteria between the tooth and the implant, which can cause inflammation and discomfort in the patient.
  • the holding device has a base body with a holding receptacle which holds or holds the abutment blank.
  • the holding receptacle and the abutment blank or its holding section correspond to one another, preferably in such a way that a positive connection is created.
  • the abutment blank is held with its holding portion in the holding receptacle.
  • the holding device has an anti-rotation, which prevents rotation of the Abutmentrohlings, in particular about its longitudinal axis.
  • the holding receptacle and the holding portion of the blank therefore each have coupling means which correspond and cooperate with each other.
  • the holding receptacle comprises a positioning element as the first coupling means.
  • the abutment blank has an alignment element as the second coupling means, which is preferably arranged on the holding section of the blank.
  • the holding takes place in such a way that the abutment blank is held against rotation and in a predetermined position in order to be able to machine the blank, preferably by machine and automatically. Holding in a predefined position 25 is advantageous, partly necessary, in order to be able to produce the so-called post structure of the abutment relative to the outer contour of the implant interface.
  • the abutment blank is held in the holding receptacle such that the implant connection or the implant interface has no direct connection and no contact with the holding device.
  • the particular dere spaced from the body interface is preferably freely accessible.
  • the abutment blank is clamped on its holding section on one side in the holder 5, preferably at its end opposite the implant interface, so that the implant interface is spaced from the holding device.
  • a processing area of the abutment blank following the implant interface is freely accessible for processing the blank.
  • This processing section of the blank is the area of the blank body which is machined and which forms the abutment of the emergence profile and the structure (post assembly) with the abutment surfaces for the artificial tooth.
  • the term "freely accessible" means that the abutment blank can be processed completely, preferably from all three spatial directions. The final outer shape of the abutment can therefore be fixed during the clamping of the abutment tube.
  • the abutment can preferably be produced automatically in one operation.
  • the holding section of the abutment blank is separated from the holding receptacle.
  • the main body of the holding device has a plurality of retaining seats to hold a plurality of abutment blanks simultaneously, which can be processed, for example, in one operation.
  • a plurality of retaining seats to hold a plurality of abutment blanks simultaneously, which can be processed, for example, in one operation.
  • the holding receptacles can be arranged, for example, next to one another or on different, preferably opposite sides of the main body. They may comprise a recess, for example a blind bore or a through bore.
  • the base body has a cutout or a recess which forms a processing space into which the retained abutment blanks extend at least partially into it.
  • the recess may be a cavity or cavity or the like.
  • the recess is accessible from at least two sides.
  • the forming processing space is at least partially enclosed by parts of the body.
  • the cutout in the holding device may be a breakthrough.
  • the main body of Garvorrich- device 15 forms a enclosure or a frame with internal (investment) surfaces or inner surfaces.
  • the frame holds the recess.
  • the result is a processing space between the inner surfaces, which is accessible from two sides and open.
  • a holding receptacle is arranged on at least one of the inner surfaces, so that the to be processed
  • the abutment blank extends the abutment blank into the processing space when held in the holding receptacle. It can also be arranged several retaining seats in an inner surface. They are preferably a blind bore or a through bore and correspond with the holding section of the abutment blank in such a form-fitting manner that the holding section of the abutment blank is held in a rotationally secure manner in a predetermined position in the holding receptacle, in order to enable an unambiguous positioning of the blank.
  • a holding system consisting of the holding device and the Abutmentrohling has an anti-rotation, which is formed from the positioning of the holding device and the alignment element of Abutmentrohlings.
  • the alignment element is a Groove, which is preferably accessible from the free end of the holding portion.
  • the positioning element is a web or a pin or a similar component or an Anformung in the holding receptacle of the holding device.
  • the positioning can be a groove and the alignment element a web or pin o. ⁇ .. Other mutually corresponding coupling means are also conceivable. This ensures a rotationally indexed alignment of the blank.
  • the rotation or the coupling means, so the positioning and the alignment element are formed by the geometry or the contour of the holding receptacle and the holding portion.
  • the cross-sectional shape of the holding receptacle only has to correspond to the cross-sectional shape of the holding section of the abutment blank.
  • the holding section of the abutment blank may not be rotationally symmetrical. It can have an oval or angular cross-section.
  • the cross section can be rectangular, square, triangular or round. Of course, any unique shapes are possible as a cross section, which can be described mathematically by a polygon, for example. It is only important that the holding receptacle and the holding portion have corresponding cross-sections, so that preferably a positive connection can take place. In this way, therefore, can also realize a rotation, so that the blank is held against rotation and in a preselected orientation in the holding device.
  • the holding connection can for example take place in that the two coupling means can be coupled together in such a way that a positive and / or non-positive connection is formed, which, however, is solvable.
  • the coupling means may each have a thread which correspond with each other, ie engage in each other.
  • the holding receptacle of the holding device is a bore, particularly preferably a blind bore with a bottom.
  • the blank body of the abutment blank with its preferably distal end, which is particularly preferably opposite the implant surface, is held in this blind bore.
  • the holding section of the blank body is preferably fitted into the holding receptacle of the holding device.
  • a detachable connection between the abutment blank and the holding device is preferably produced by positive locking and / or alternatively by frictional connection.
  • the holding device preferably has a fixing element on the holding receptacle.
  • a fixing element may for example be a jaw or the like, so that the Abutmentrohling is held by clamping in the holding receptacle.
  • the clamping jaw can be connected, for example, integrally with the holding device. It is also possible to realize a jaw, which is available as a separate component. This is preferably connected by clamping means with the holding receptacle so that an interference fit takes place.
  • the clamping jaw can be screwed to the holding receptacle.
  • a magnetic holding unit may be integrated in the holding device, e.g. one
  • Electromagnet to assist in preferentially holding the blank.
  • the abutment blanks to be machined are cylindrical and thus have a round cross-section.
  • the holding receptacle of the holding device is also round in the case. Since the round cross-sectional shape does not provide rotation protection or anti-rotation, anti-rotation must be provided. For example, such an anti-rotation means by the combination of recess and expansion (bulge) or preferably by groove and pin, as described above, take place.
  • the holding section is cylindrical and the holding device is designed to correspond to it, the holding section can be fully clamped by the fixing element, preferably by the clamping element. As a result, the abutment blank is particularly strong in the holding receptacle.
  • the abutment blank with a clear outer contour by means of clamping elements or jaws in full.
  • the outer contour of the abutment blank has the shape of an outer hexagon, a polygon or a polygon or another arbitrary shape which allows a clear alignment of the abutment
  • the retaining receptacle is formed corresponding to the outer contour of the abutment blank.
  • a checking means or an observation opening can be provided in the holding device, which signals the exact fit of the abutment 20 in the holding receptacle of the holder or makes its position observable.
  • the means are of an optical nature. More preferably, a viewing window or sight bore is used to enable visual inspection.
  • the holding device has a bore, by means of which the holding section of the abutment blank at
  • the holding device preferably has an observation bore, which makes it possible to observe the ground.
  • the bore is for observation on the side of the holding device
  • the bore is substantially perpendicular to the longitudinal axis of the holding receptacle or Abutmentrohlings.
  • an optical measuring and evaluation unit It can be a camera or photodiodes or similar. include. This is advantageous in automated production of the abutments.
  • the abutment blank according to the invention has an implant interface, a processing section adjoining the implant interface, and a holding section spaced from the implant interface with an alignment element.
  • the alignment member corresponds to the positioning member of a holding fixture of a fixture. Through the interaction of the abutment blank is held against rotation in the holding receptacle.
  • abutment blanks 15 are used, the blank body of which has an implant interface, with the implant interface particularly preferably corresponding to a longitudinal axis of the abutment blank.
  • the dental abutment blank has a bore which extends concentrically through the implant interface. Through this hole will later, after production of the
  • the blank body is greater in its longitudinal extent than the abutment to be produced.
  • the machining section of the blank is preferably cylindrical and has a holding section at a distal second end, which lies opposite the first end on which the implant connection is arranged.
  • the preferably likewise cylindrical holding section adjoins the processing
  • the holding section does not have to be used for processing and is not available for the construction of the abutment. He only has a hold function.
  • the outer contour of the holding portion and the processing portion are the same. The same applies preferably to the scopes.
  • the holding section and the processing section preferably merge seamlessly with one another, in particular with a cylindrical abutment blank. Holding section and processing section can also differ in shape, contour and circumferential size.
  • the holding section is preferably normalized and only the processing section is different.
  • the processing section can already be adapted to the later form of the abutment and the pin structure.
  • the abutment blanks are made of metal. Particularly preferred is the blank of titanium, stainless steel, cobalt chromium (CoCr). However, other materials are also possible, such as ceramic, plastic or the like.
  • abutment blank is held only on the holding section, which is spaced from the implant interface, preferably facing it, no forces are exerted on the interface (implant connection) during processing of the blank.
  • This implant connection can be used industrially with consistently high precision (highest precision) and minimum tolerances
  • the holding device has a plurality of holding receptacles, so that a plurality of abutment blanks can be held simultaneously. This makes faster and automated processing possible.
  • the holding device for the abutment blanks is preferably designed such that it can be inserted into a standard receptacle of a processing machine, for example a milling machine. That way you can the abutments are machined with conventional milling machines.
  • the processing takes place, for example, by milling, turning, machining or similar processing steps, preferably automated or semi-automated.
  • the holding device is made of stainless steel. It is particularly preferably made of solid stainless steel. Of course, other materials can be used, the holding device is preferably made of metal, for example, titanium. Other materials, including plastics, are conceivable.
  • the holding device is in one piece.
  • a possible clamping function for clamping or clamping the Abutmentrohlings in the holding device can be realized by eroded slots in a clamping region of the Haltevorrich- device 15.
  • the jaws made by the eroded slots can be bolted to the base (base) of the retainer by screws so that tension is applied to the retaining portion of the abutment blank. This makes it possible to generate a frictional connection.
  • a holding device which has a holding receptacle. Retaining and holding section of the abutment blank
  • the holding receptacle is preferably prepared in such a way that it is ready to receive the abutment blank.
  • jaws or similar clamping devices provided to hold the Abutmentrohling non-positively, these clamping devices are preferably dissolved or loosened.
  • the abutment blank is preferably introduced with its holding portion in the holding receptacle, in particular inserted.
  • a clear rotational or rotationally indexed alignment of the abutment blank is generated and secured in the holder.
  • the blank is twist-proof in one desired position held. This can be done, for example, by correspondingly corresponding to a non-rotationally symmetrical shape of the holding section and the holding receptacle, or by providing an anti-twist device, for example, in the form of a groove and pin or web.
  • a visual check is made as to whether the abutment blank has reached its axial end position in the holding receptacle. This can be done for example by a sight hole or a viewing window.
  • the optical control can be automated or automated, e.g. by means of a camera, a photodiode, a light barrier (each visible or invisible, e.g., infrared) or via electrical contacts.
  • the abutment blank is preferably fixed in the holding fixture.
  • this can be done by tightening jaws, clamping segments or jaws or close, so that the positive connection is completed or supplemented or replaced by a non-positive connection. Due to the clamping, a precise and reliable holding of the blank in the holder and a fixation of its position can take place.
  • the holding device is preferably clamped in a corresponding receptacle of a milling machine and fastened there.
  • the abutment blank is machined, with an emergence profile having a shoulder being initially created, preferably beginning at the proximal end of the blank body near the implant interface.
  • This emergence profile is followed by a construction or a pin-like abutment area.
  • the abutment is preferably completely milled.
  • the abutment (or the pin structure) and the holding section remain connected to one another at at least one point and are jointly removed from the holding device. accepted. They are separated in a further step in a manual processing of each other. There may be further processing of the abutments, z. B. by manual post.
  • the abutment at the proximal end of the abutment to be produced is preferably detached or separated from the holding section of the abutment blank by a cut or by deep milling.
  • the abutment is separated from the holding section, so that it preferably falls out of the holding device.
  • it is captured or picked up by a safety device, e.g. through a drip tray.
  • the safety gear may also consist in that a wire or a thin rope between the holding device and the implant port is stretched.
  • the holding device is preferably released from the milling machine.
  • the holding sections of the abutment blanks which may still be held in the device, are preferably removed from the holding receptacles, so that the holding device can be used again for processing further abutment blanks.
  • the holding device can be removed before weighing
  • the method allows a plurality of blanks to be processed in parallel or by repeating individual steps sequentially.
  • the positive properties and advantages of the abutment blank and of the holding device and of the holding system are listed again below:
  • the abutment blanks are preferably cylindrical and designed in two diameters. With diameters of between 9 mm and 13 mm, preferably 1 1, 5 mm and between 14 mm and 21 mm, preferably 16 mm, they provide the necessary variability.
  • the holding portion preferably has the smaller diameter, that is preferably 1 1, 5 mm. The diameters guarantee an exact zero definition for the
  • the holding portion of the blank may also be on a side portion of the Abutmentrohlingkorpus. It merely has to be spaced apart from the implant interface in such a way that no forces act on the interface.
  • the abutment holders (holding devices) according to the invention offer an excellent added value.
  • the optimum selection of blanks, the minimum number of components and the advantages of automated production lead to extremely efficient production processes.
  • an overall system is provided.
  • FIG. 1 shows a disc-shaped holding device from its front side
  • FIG. 2 shows the holding device from FIG. 1 with three abutment blanks
  • FIG 3 shows the holding device of Figure 1 from the back
  • FIG 4 is a detail drawing of a holding receptacle of the holding device of Figure 3;
  • FIG. 5 shows a cross section from the front side to the back side of the holding device.
  • Figure 6a, b is a longitudinal section from the front to the back of the holding device in two different heights
  • FIG. 7 shows a first embodiment of the abutment blank in a
  • FIG. 8 shows a second embodiment of the abutment blank in a perspective view.
  • the holding device 1 has a disk-like shape. This is shown by way of example in FIG.
  • the outer shape of the holding device 1 is round in the example shown. As a result, it fits into a corresponding receptacle of a processing machine, for example a milling machine.
  • the outer shape of the holding device 1 may also be designed differently, for example with at least two preferably parallel to each other 30 extending outer sides, such as rectangular or square.
  • the holding device 1 in its main body 2 a cutout 3.
  • the base body 2 forms a corresponding enclosure or a frame 31 with inner contact surfaces (inner surfaces) 4 and a processing space 30.
  • the formed processing space 5 30 accessible from two sides, so that a machining of a held Abutmentrohlings example with a milling cutter, preferably with a Dental milling machine, possible.
  • the cutout 3 is rectangular, wherein the corners can be rounded. This results in at least two (preferably parallel) opposing contact surfaces 4. A possible embodiment of this embodiment is shown in FIG.
  • the holding device 1 4 holding receptacles 5 in their inner surfaces.
  • at least one holding receptacle 5 is provided.
  • in the first inner surface 4 there are arranged three juxtaposed holding receptacles 5.
  • the opposite inner surface 4 also has three retaining seats 5.
  • the two, to the inner surfaces 4 angularly extending, preferably arranged at right angles, surfaces or inner surfaces can
  • FIG. 2 shows the holding device 1 from FIG. 1 with a total of four abutment blanks 6, three of the abutment blanks 6 being positioned in the holding receptacles 5 of the first inner surface 4, while another abutment tube 25 is positioned in the holding receptacle 5 of the opposite inner surface 4 is.
  • the retaining seats 5 of the holding device are identical. This assumes that the holding sections of the abutment
  • Abutment blanks 6 correspond to the retaining seats 5.
  • the holding sections and the entire Abutmentrohlinge 6 are cylindrical.
  • the retaining seats 5 are therefore also cylindrical.
  • one of the blanks 6 has a body with a larger diameter than the diameter of the holding portion; the holding section is identical to that of the other blank.
  • FIG. 2 shows that the abutment blanks 6 used here have an implant interface 8 at a free end 9 of a blank body 10, which is prefabricated industrially and with high precision and whose shape is designed very precisely and has only minimal tolerances.
  • the abutment blank 6 is so positioned with its holding section in the holding receptacle 5 of the holding device i o 1 that the implant interface 8 projects into the interior of the cutout 3.
  • the implant interface has no contact with the holding device 1.
  • FIG. 1 shows the front side 1 1 of the holding device 1
  • the rear side 12 of the holding device 1 is shown in Figure 3 15.
  • clamping devices 13 which are each assigned to a holding receptacle 5.
  • the clamping devices 13 are configured in the form shown here as clamping jaws 14, which are integrally connected to the base body 2 of the holding device 1.
  • the jaws 14 are formed by eroded slots 15 20.
  • the clamping jaw 14 can be used by means of a clamping element 16 (FIG. 6 a) on the base body 2, so that the abutment blank 6 is held in the retaining seat 5 in a force-fitting manner.
  • One possible embodiment of the preferred embodiment is the use of Allen screws or other screws 17 which engage in a threaded bore 18 of the clamping jaws 14.
  • Figure 4 shows a detailed drawing of the holding receptacle 5 as a bore.
  • a shoulder 19 is formed, which forms a bearing surface 32 for an end face 33 of the second end 20 of the Abutmentroh- 30 lings 6 (Fig. 5).
  • holes 21, serve as a viewing window 22 and allow visual control, whether the Abutmentrohling 6 is completely positioned in the holding device 5, so whether the end face 33 has contact with the support surface 32.
  • the abutment blank 6 has, for example, a larger diameter than the adjoining him holding section 7, the shape of which corresponds to the holding receptacle 5 i o.
  • the abutment blank 6 has a through-bore 35, which runs concentrically to the longitudinal axis of the abutment blank and through the implant interface 8.
  • the through hole 35 has a shoulder near the interface 8, on which a screw head of a fastening screw can rest, so that the product
  • the holding receptacle 5 formed by the bore 24 has a larger diameter in the end oriented toward the inner surface than the bore region 25 arranged to the outside of the main body 2.
  • the shoulder 19 is thereby formed , which forms the support 32 for the Abutmentrohling 6.
  • the holding device 1 has a
  • the torsion protection 26 is preferably formed by a positioning element 50 on the holding receptacle 5 and an alignment element 70 on the holding section 7.
  • the twist protection 26 can be formed, for example, by a pin or a web, which in
  • FIG. 5 shows a possible embodiment.
  • a pin 27 is formed in the holding receptacle 5, which cooperates with a groove 28 at the end of the holding portion 7. With proper fit of the abutment blank 6 in the holding receptacle 5, the pin 27 extends into the groove 28 in the holding section 7 and secures the positioning of the blank in the holding device first
  • the viewing window 22 is formed in the form of the bore 21.
  • the viewing window is arranged at the level of the torsion protection 26.
  • the viewing window can also be positioned on the opposite side or another suitable location.
  • FIGS. 6a and 6b show a longitudinal section through the holding receptacle, with the section through the clamping element 16 taking place in FIG. 6a.
  • the eroded slot 15 which at least partially separates the jaw 14 from the main body 2. Trained as a screw 17 clamping element 16 engages in the threaded bore 18 a.
  • FIG. 6a once again shows the anti-rotation protection 26 in the form of the pin 27, which engages in the groove 28. Likewise, the viewing window 22 is shown.
  • FIG. 6b shows a section above the tensioning element 16 in order again to make the clamping jaw 14 and the slot 15 visible.
  • FIGS. 7 and 8 show two embodiments of the abutment blank 6 from different perspectives.
  • the implant interface 8 is arranged at the first end 9 of the abutment blank 6, the outer contour of which has a multiplication
  • the interface 8 comprises a frusto-conical base 36, to which the cylindrical processing area 34 of the blank body 10 adjoins.
  • the likewise cylindrical holding section 7 is connected to the machining region 34 and forms on its lower side in Figure 7, the end face 33 of the second end 20 of the Abutmentrohlings. 6
  • Abutmentrohlings 6 At the second end 20 of Abutmentrohlings 6 is preferably 5 U-shaped groove 28, in which the pin 27 engages in the holding receptacle 5 (see Figure 5).
  • the U-shaped groove 28 is preferably open on the end face 33 and in the direction of the outer contour of the holding section 7.
  • the through hole 35 extends through the entire blank body 10.
  • the through hole 35 exits the abutment blank 6 at the interface 8 and the end face 33.
  • Both embodiments shown differ only in the diameter of the processing area 34.
  • the processing area 34 has a larger diameter than the holding area 7.
  • the outer diameters of the machining area 34 and of the holding section 7 are identical.
  • the processing area 34 and the holding section 7 together form a uniform cylindrical outer contour of the abutment blank 6.

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  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Prosthetics (AREA)

Abstract

L'invention concerne un système de maintien présentant un dispositif de maintien (1) et une ébauche de butée (6), un procédé pour maintenir et usiner une ébauche de butée (6) et un dispositif de maintien (1) pour maintenir une ébauche de butée (6) présentant une interface d'implant (8) et une section de maintien (7) écartée de l'interface d'implant (8), comprenant une découpe (3) dans un corps de base (2) pour former un cadre présentant des surfaces d'appui internes, une des surfaces d'appui étant écartée de la surface d'appui opposée de manière à former un espace d'usinage (30) dans lequel s'étend l'ébauche de butée (6) à usiner, une des surfaces d'appui présentant au moins un logement de maintien (5) qui est de préférence un trou borgne et qui correspond à la section de maintien (7) de manière telle que la section de maintien (7) de l'ébauche de butée (6) est maintenue, de préférence par complémentarité de forme, dans le logement de maintien (5) de manière à ne pas pouvoir tourner et de manière orientée dans une position prédéfinie.
EP14750365.0A 2013-08-14 2014-08-11 Dispositif de maintien pour une ébauche de butée, système constitué par le dispositif de maintien et l'ébauche de butée et procédé pour maintenir et usiner l'ébauche de butée Withdrawn EP3033038A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14750365.0A EP3033038A1 (fr) 2013-08-14 2014-08-11 Dispositif de maintien pour une ébauche de butée, système constitué par le dispositif de maintien et l'ébauche de butée et procédé pour maintenir et usiner l'ébauche de butée

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP13180431 2013-08-14
EP13198878.4A EP2837357A1 (fr) 2013-08-14 2013-12-20 Dispositif de support pour une ébauche de pilier, ébauche de pilier, système comprenant le dispositif de support et l'ébauche de pilier et procédé de support et d'usinage de l'ébauche de pilier
PCT/EP2014/067176 WO2015022296A1 (fr) 2013-08-14 2014-08-11 Dispositif de maintien pour une ébauche de butée, système constitué par le dispositif de maintien et l'ébauche de butée et procédé pour maintenir et usiner l'ébauche de butée
EP14750365.0A EP3033038A1 (fr) 2013-08-14 2014-08-11 Dispositif de maintien pour une ébauche de butée, système constitué par le dispositif de maintien et l'ébauche de butée et procédé pour maintenir et usiner l'ébauche de butée

Publications (1)

Publication Number Publication Date
EP3033038A1 true EP3033038A1 (fr) 2016-06-22

Family

ID=49003656

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13198878.4A Withdrawn EP2837357A1 (fr) 2013-08-14 2013-12-20 Dispositif de support pour une ébauche de pilier, ébauche de pilier, système comprenant le dispositif de support et l'ébauche de pilier et procédé de support et d'usinage de l'ébauche de pilier
EP14750365.0A Withdrawn EP3033038A1 (fr) 2013-08-14 2014-08-11 Dispositif de maintien pour une ébauche de butée, système constitué par le dispositif de maintien et l'ébauche de butée et procédé pour maintenir et usiner l'ébauche de butée

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EP13198878.4A Withdrawn EP2837357A1 (fr) 2013-08-14 2013-12-20 Dispositif de support pour une ébauche de pilier, ébauche de pilier, système comprenant le dispositif de support et l'ébauche de pilier et procédé de support et d'usinage de l'ébauche de pilier

Country Status (4)

Country Link
US (1) US11426263B2 (fr)
EP (2) EP2837357A1 (fr)
CA (1) CA2920985A1 (fr)
WO (1) WO2015022296A1 (fr)

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FR3062052B1 (fr) 2017-01-26 2021-07-16 Anthogyr Sa Ensemble de composants pour la restauration prothetique dentaire
FR3062053B1 (fr) 2017-01-26 2021-07-16 Anthogyr Sa Piece intermediaire de fixation
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Also Published As

Publication number Publication date
US20160193020A1 (en) 2016-07-07
US11426263B2 (en) 2022-08-30
WO2015022296A1 (fr) 2015-02-19
EP2837357A1 (fr) 2015-02-18
CA2920985A1 (fr) 2015-02-19

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