专利摘要:
Set to form an interface piece for dental implants with a variable height. The assembly comprises a tubular interface part (1) with a central axis (Z) and an auxiliary part (8) that is coupled to the interface part (1). In a coupled position: the auxiliary part (8) is integral with the interface part (1) in a direction of a direction parallel to the central axis (Z); a final section (14) of the pillar (3) protrudes from an upper end of the auxiliary part (8); and a peripheral surface (12) outside the pillar (3) comprises a first flat face (131) in a plane (P1) that cuts the final section (14) of the pillar (3) and the central axis (Z) and a second face (132). The faces (131, 132) of the auxiliary part (8) serve as a guide for cutting the pillar (3) at a certain height and with a recess. (Machine-translation by Google Translate, not legally binding)
公开号:ES2737500A1
申请号:ES201830679
申请日:2018-07-06
公开日:2020-01-14
发明作者:Brullet Carlos Soler;Yanini Juan Carlos Perez
申请人:IMPLANT PROTESIS DENTAL 2004 S L;
IPC主号:
专利说明:

[0001]
[0002] SET TO FORM AN INTERFACE PIECE FOR DENTAL IMPLANTS
[0003]
[0004] Field of the Invention
[0005]
[0006] The invention is in the field of dental implants.
[0007]
[0008] The dental implants to which the invention is applied comprise a dental implant body that is implanted in the bone of a patient by a surgical operation and a dental prosthesis that is fixed to this dental implant body by screwing, using a screw that is Screw into a threaded hole provided for this purpose in the dental implant body. The dental prosthesis can also be fixed to an analog during its construction phase in the laboratory. An analogue is a support that has a geometry analogous to that of the dental implant body connection, and in which the dental implant structure is fixed to work on it in the laboratory.
[0009]
[0010] This dental prosthesis that is fixed to the dental implant body by means of a screw is a complex element, which is custom-made in a laboratory and which comprises a prosthetic element, such as a calcinable body or a prosthetic tooth body, and a interface piece that interposes between said prosthetic element and the dental implant body. This interface piece protects the dental implant body from abrasion caused by the ceramic material constituting the dental prosthesis, and also facilitates the adjustment of the dental prosthesis on the dental implant body.
[0011]
[0012] The invention relates to this interface piece intended to interpose between the prosthetic element and the dental implant body.
[0013]
[0014] More specifically, the invention consists of an assembly that allows providing an interface piece with a variable height.
[0015] State of the art
[0016]
[0017] The interface pieces to which the invention relates have a tubular shape, with a base end intended to seat the interface piece on a dental implant body, a pillar to support a prosthetic element (for example a calcinable body or a prosthetic tooth body) to the interface piece, and an inner duct that crosses the interface piece forming a passage for a fixing screw, said inner duct being provided with an inner boss forming a seat for the screw head of fixation. The base end may have various shapes, each adapted to a corresponding shape of the dental implant body. The abutment can have a cylindrical, frustoconical or other shape depending on the type of dental prosthesis that you want to build.
[0018]
[0019] In the known state of the art the interface pieces are supplied with a fixed height pillar. This height of the abutment is not always the most appropriate depending on the type and dimensions of the dental prosthesis that you want to build. Document ES1182233U discloses a solution for the dental technician to modify the height of the abutment of the interface piece. This solution consists of arranging some marks along the abutment to indicate to the dental technician several possible positions to cut the abutment and thus reduce its height. The dental technician uses his own machining tools to cut the abutment to one of the heights indicated by the marks. Performing this cutting operation with precision is not an easy task, taking into account that an interface piece has very small dimensions and that the dental technician must choose one of the marks present in the interface piece itself and make a cut at the height indicated by the chosen brand. On the other hand, for the marks to be distinguishable by the dental technician, it is necessary that they be arranged in a clear area of the wall of the abutment, which in many cases requires the modification of the abutment to provide it with these cleared areas. In particular, these cleared areas must be devoid of the retention grooves that are usually formed on the outer surface of the abutment, which can weaken the retention of the prosthetic element on the abutment surface.
[0020] On the other hand, for certain applications there is a need to provide interface parts that have a recess in the free end of the abutment. This is the case, in particular, of the interface pieces intended to make angled toothed prostheses in which the cut-out of the interface piece allows the fixing screw to be introduced at an inclination with respect to the central axis, and also allows the introduction of a tool Screwed also with an inclination.
[0021]
[0022] Description of the invention
[0023]
[0024] The purpose of the invention is to provide an assembly to form an interface piece for dental implants with a variable height, which allows a dental technician to reduce the height of the abutment in an easier and more precise way, without the need to modify the pillar to give it special marks. A particular purpose of the invention is to form an interface piece of variable height and suitable for angled prostheses, in which the abutment has a recess at its free end.
[0025]
[0026] This purpose is achieved by means of a set to form an interface piece for dental implants with a variable height, characterized in that it comprises:
[0027] - an interface piece having a tubular shape with a central axis and comprising: a base end for the seat of said interface piece on a dental implant body, a pillar for the solidarity of a prosthetic element to said piece of interface, said pillar being coaxial with said central axis and extending from said base end to a free end of said pillar, and an internal conduit coaxial with said central axis that crosses said interface piece from said free end to said base end forming a passage for a fixing screw, said inner conduit being provided with an inner projection forming a seat for the fixing screw head, and
[0028] - at least one auxiliary part shaped to be removably coupled to said interface part, so that in a coupled position: said auxiliary part is integral with said interface part at least in a direction in a direction parallel to said axis central; a final section of said pillar, adjacent to said free end, protrudes from an upper end of said auxiliary part; said upper end of the auxiliary part forms an outer peripheral surface to said pillar, said peripheral surface comprising a first flat face in a first plane that cuts said final section of the pillar and said central axis, and a second face that does not belong to said first plane and that continuously extends said first flat face on said surface peripheral
[0029]
[0030] The assembly according to the invention does not require that the interface piece be modified to provide it with indicator marks of cutting heights. On the contrary, the invention is based on associating an auxiliary part to the interface piece that has a specific way to be coupled to the interface piece, such that by coupling both pieces together the auxiliary part provides a flat face that defines precisely a cutting plane to cut the pillar at a specific height that is predetermined by the dimensions of the auxiliary part itself. In other words, instead of supplying the dental technician with an interface piece with marks, which must be cut using their own means and following these marks, a set consisting of the interface piece and the auxiliary part is supplied. Thus, the technician does not have to identify a mark on an interface piece, which is very small in size, nor does it have to align a cutting system with the mark on the interface piece. The technician only has to choose the auxiliary part, attach it to the interface piece and perform the cutting of the abutment by the first plane defined by the first flat face at the upper end of the auxiliary part. In addition, the technician can very easily perform a recess at the end of the pillar. To do this, the technician only has to complete the cutting of the abutment by following with a cutting tool the second face of the peripheral surface.
[0031]
[0032] To perform the cut the technician can use a conventional cutting tool, such as a milling cutter or a cutting disc, and guide said cutting tool by taking the first flat face and the second side of the auxiliary part as support. A good cutting precision is thus achieved and each dental prosthesis technician has to implement a particular cutting system that can give different results depending on the aptitudes of the technician. Once the cut has been made, the technician removes the auxiliary part thanks to the removable character of its coupling with the interface piece.
[0033] Preferably the first plane is perpendicular to the central axis. The pillar obtained after making the cut thus has an end face in a plane perpendicular to the central axis and a recess adjacent to the latter plane.
[0034]
[0035] The second face can have any shape, depending on the geometry of the recess to be made at the free end of the pillar of the interface piece. For example, it can be a flat face in a plane different from that of the first face, it can have a straight square shape with one of its sides parallel to the central axis, or it can have other complex shapes such as a curved shape or a combination of flat shapes and / or successive curves. In preferred embodiments, the second face comprises an upper section in a second plane parallel to the central axis, and a lower section in a third plane, said second plane and third plane cutting the final section of the pillar, and said third plane forming with said second plane an angle greater than or equal to 90 °. Preferably said angle formed by the third plane and the second plane is an obtuse angle, and more preferably is between 110 ° and 130 °. Thus, a recess in the abutment is made in the form of an obtuse angle, which with respect to a recess in the form of a straight square provides a better joint of the prosthetic element on said abutment, thanks to the fact that the surface of the outer face of the abutment is increased to be joined with the prosthetic element.
[0036]
[0037] Preferably, the second face comprises a curved-concave intermediate section that joins said upper section and said lower section. Thanks to this configuration, the obtuse angle-shaped recess made in the abutment does not have an edge in the center of the obtuse angle that weakens the resistance of the interface piece to fatigue.
[0038]
[0039] In preferred embodiments, the auxiliary part has an annular shape with an axial passage, said axial passage through said auxiliary part from a lower end to the upper end that forms the peripheral surface. The peripheral surface is then an annular surface around said axial passage. The auxiliary part is shaped so that the abutment enters the axial passage of the auxiliary part through the lower end and moves freely in a direction parallel to the central axis to the coupled position. In said coupled position, the interface piece is in solidarity with the auxiliary part, by complement of form between said interface piece and said auxiliary part, in any radial direction with respect to the central axis. This configuration allows the dental technician to easily perform the removable coupling between the two pieces and also cut the abutment in a particularly reliable way.
[0040]
[0041] Preferably, in these latter embodiments, the auxiliary part has an outer surface with a cylindrical shape and provided with grooves distributed along the circular perimeter of said cylindrical shape. This outer surface can be used as a handle, so that the dental technician can hold the auxiliary part by hand or with a tool.
[0042]
[0043] In preferred embodiments, the base end of the interface piece comprises a flange that protrudes from the outer surface of the abutment in a radial direction with respect to the central axis, and the abutment extends from said flange to the free end. In the coupled position, the auxiliary part is fully supported by its lower end against said flange in the direction of the central axis. In this configuration of the interface piece, which is the most common in the state of the art, the flange is intended to rest on the body of the dental implant. The particularity of these embodiments of the invention consists in advantageously using this flange as a stop for the auxiliary part.
[0044]
[0045] Preferably, the pillar of the interface piece comprises a non-circular outer surface with respect to the central axis, and the auxiliary piece comprises a non-circular inner surface with respect to said central axis, said non-circular inner surface having a complementary shape to that of said non-circular outer surface, so that in the coupled position, the interface piece is connected to the auxiliary part in rotation with respect to said central axis by complementing shape between said outer surface and said inner surface. This prevents a relative rotation between the two pieces during the cutting operation of the abutment, which in some could damage the interface piece. In addition, this configuration allows the recess to be made in the abutment to be fixed in a predetermined position.
[0046]
[0047] In some embodiments, the outer surface of the abutment comprises, in a lower section of said abutment adjacent to the base end, at least one protuberance that it forms the non-circular outer surface of the pillar, and the inner surface of the auxiliary part comprises at least one recess that forms the non-circular inner surface of said auxiliary part and into which, in the coupled position, said protuberance is introduced. This solution has the advantage of freeing the entire upper section of the abutment, which is preferably provided with retention grooves and which is intended to support the prosthesis element to the interface piece.
[0048]
[0049] Preferably, said protuberances are at least three and are distributed around the central axis. This allows the dental technician to more easily connect the auxiliary part to the interface piece.
[0050]
[0051] Optionally, the assembly according to the invention comprises a tool for joining the auxiliary part to the interface piece, in the coupled position, in the direction of the central axis, said utensil comprising a rod that moves in a through hole of said auxiliary part and which presses the outer surface of said interface piece with its end. Thanks to this solution it is not necessary that during the cutting operation the dental prosthesis technician maintains the coupled position of the two pieces, which further facilitates the cutting operation of the abutment.
[0052]
[0053] Preferably, the rod is provided with a thread and the through hole is provided with a corresponding thread, so that said rod is screwed into said through hole to travel along it until it presses the outer surface of the workpiece with its end interface, and the utensil comprises a handle integral with said rod. This configuration allows solidarity of the pieces in a particularly easy and robust way.
[0054]
[0055] The invention also comprises other detail features shown in the following detailed description of embodiments of the invention and in the accompanying figures.
[0056] The advantages and features of the invention can be seen from the following description in which, without limitation with respect to the scope of the main claim, preferred embodiments of the invention are set forth with reference to the figures.
[0057]
[0058] Figs. 1 to 5 are respectively a perspective view, a longitudinal section view, a bottom view, a front view and a top view of the interface piece.
[0059]
[0060] Figs. 6 to 12 are respectively a perspective view, a first longitudinal section view, a second longitudinal section view, a cross section view, a bottom view, a front view and a top view of the auxiliary part.
[0061]
[0062] Figs. 13 to 15 are respectively a front view, a longitudinal section view and a cross-sectional view of the assembly formed by the interface piece and the auxiliary part in the coupled position.
[0063]
[0064] Figs. 16 and 17 show from left to right some successive stages of the cutting operation of the pillar of the interface piece at a height predetermined by the auxiliary part and making a recess in the pillar.
[0065]
[0066] Figs. 18 and 19 are a perspective view and a sectional view showing the use of the tool to mutually support the two pieces in the direction of the central axis.
[0067]
[0068] Detailed description of embodiments of the invention
[0069]
[0070] Figs. 1 to 19 show an embodiment of the assembly according to the invention. The assembly consists of an interface piece 1 for dental implants and an auxiliary part 8.
[0071]
[0072] The interface piece 1 is a metal single piece of biocompatible material, such as a grade 5 titanium alloy (Ti-6Al-4V alloy), a Cr-Co alloy or a Ni-Cr-Mo-Ti alloy. As can be seen in Figs. 1 to 5, the interface piece 1 has a tubular shape with a central axis Z and comprises a base end 2 for the seat of the interface piece 1 on a dental implant body (not shown in the figures), and a pillar 3 for the solidarity of a prosthetic element (not shown in the figures) to said interface piece 1. The pillar 3 is coaxial with the central axis Z and extends from the base end 2 to a free end 4 of said pillar 3. An inner conduit 5, coaxial with the central axis Z, crosses the interface piece 1 from the free end 4 to the base end 2. This inner duct 5 forms a passage for a fixing screw (not shown in the figures) and is provided with an inner shoulder 6 forming a seat 7 for the head of the fixing screw. The base end 2 has a flange-shaped seating part that constitutes a flange 15 protruding from the outer surface of the pillar 3 in a radial direction with respect to the central axis Z. The pillar 3 extends from the flange 15 to the free end 4. The base end 2 further comprises a fitting part 28 which in the example shown has a hexagonal shape and is intended to make an antirotational fitting of the interface piece 1 in a dental implant body having a shape correspondent. This fitting part 28 can have any other shape, including a shape on the inner surface of the inner duct 5, depending on the geometry of the dental implant body in which the interface part 1 is intended to fit. The outer surface of the pillar 3 is cylindrical and comprises retention grooves 27, intended to ensure the solidarity of a prosthetic element to said outer surface of the pillar 3. In an inferior section of the pillar 3, adjacent to the base end, the outer surface of the pillar 3 comprises three protuberances 16 that are distributed around the central axis Z and that form a non-circular outer surface of the pillar 3.
[0073]
[0074] The auxiliary part 8 is a single piece of any rigid and resistant material. For example, it can be a metal part or a molded part of a polymeric material with loads. As can be seen in Figs. 6 to 12, in the embodiment shown, the auxiliary part 8 has an annular shape with an axial passage 9 that crosses said auxiliary part 8 from a lower end 10 to an upper end 11 thereof. In the figures the auxiliary part 8 has the shape of a cylindrical ring. The upper end 11 forms an annular peripheral surface 12 around the axial passage 9. This peripheral surface 12 comprises a first flat face 131 in a first plane P1 perpendicular to the axis of the auxiliary part 8 in the form of a cylindrical ring and a second face 132 which does not belong to said first plane P1 and that continuously extends said first flat face 131 in
[0075]
[0076]
[0077] said peripheral surface 12. The second face 132 comprises an upper section 133 in a second plane P2 parallel to the axis of the auxiliary part 8 in the form of a cylindrical ring and a lower section 134 in a third plane P3 forming with said second plane P2 a obtuse angle between 110 ° and 130 °. In the example represented in the drawings this angle is substantially equal to 120 °. The second face 132 further comprises a curved-concave intermediate section 135 as an elbow that joins the upper section 133 and the lower section 134.
[0078]
[0079] The auxiliary part 8 is shaped to be removably coupled to the interface part 1, such that the pillar 3 enters the axial passage 9 of the auxiliary part 8 through the lower end 10 and moves freely in the direction of the axis center Z to a coupled position in which the auxiliary part 8 is fully supported against the interface part 1. The assembly of the two parts 1 and 8 in this coupled position is shown in Figs. 13 to 15. As can be seen in Fig. 14, the auxiliary part 8 is fully supported by its lower end 10 against the flange 15 of the interface part 1. This buttress is a limit switch for the relative displacement between the pillar 3 and the auxiliary part 8 in the direction of entry of said pillar 3 in the axial passage 9. Thus, in this coupled position the auxiliary part 8 is integral with the interface part 1 in the direction of the central axis Z in Said sense of entry. Furthermore, in this coupled position the interface part 1 is connected to the auxiliary part 8 by complement of form between said interface part 1 and said auxiliary part 8, in any radial direction with respect to the central axis Z. More specifically, in the embodiment depicted the shape of the axial passage 9 and the shape of the pillar 3 are complementary in a cross section to the central axis Z, as seen in Fig. 15. The inner surface of the axial passage 9 comprises three recesses 17 in which each of the three protrusions 16 is introduced. These three recesses 17 form a non-circular inner surface of the axial passage 9 with respect to the central axis Z, which has a complementary shape to that of the non-circular outer surface of the pillar 3 formed by the protrusions 16. Thus, in the coupled position the interface part 1 is connected to the auxiliary part 8 in rotation with respect to the central axis Z by complementing the shape between the The outer surface of the pillar 3 and the inner surface of the axial passage 9. In other embodiments this solidarity can be carried out with different numbers of protrusions 16 and recesses 17, without it being necessary that there be as many recesses 17 as protrusions 16.
[0080] As can be seen in particular in Fig. 13, in the coupled position the pillar 3 protrudes from the upper end 11 of the auxiliary part 8 in a final section 14 adjacent to the free end 4, so that the first plane P1 of the first flat face 131 is perpendicular to the central axis Z and cuts said final section 14 of the pillar 3 and said central axis Z. The section of the pillar 3 by the first plane P1 determines a first cutting surface by which a first cut of said pillar 3 with the aid of the auxiliary part 8 to reduce the height of said pillar 3 to a height established by the position of the first flat face 131 along the central axis Z. As can also be seen in Fig. 13, the second plane P2 of the second face 132 is parallel to said central axis Z, and the second plane P2 and the third plane P3 cut the final section 14 of the pillar 3. The projection on the pillar 3 of the second face 132 determines a second surface of cut by which the pillar 3 with the aid of the auxiliary part 8 to make on said pillar 3 a recess 29 with a shape determined by said second face 132 of the auxiliary part 8.
[0081]
[0082] The way in which a dental technician operates to perform the cutting of the pillar 3 is as follows. First, the technician attaches the auxiliary part 8 to the interface part 1, introducing the pillar 3 through the axial passage 9 and moving the auxiliary part 8 with respect to the interface part 1 along the central axis Z until reaching the coupled position shown in Figs. 13 to 15. This situation is the one shown in the first image on the left of Figs. 16 and 17. Then the technician uses a cutting tool, such as a milling cutter or a cutting disc, to make a first cut of the pillar 3 by the first plane Z1 defined by the first flat face 131. To this end, it can advantageously support the cutting tool on said first flat face 131. The second image on the left of Figs. 16 and 17 shows the situation after having made this first cut, whereby the height of the pillar 3 has been reduced to a height established by the position of the first flat face 131 along the central axis Z. The technician then uses the same or another cutting tool, such as a milling cutter, to make a second cut of the pillar 3 following the projection of the second face 132. To this end, it can advantageously support the cutting tool on said second face 132. The third image by the left of Figs. 16 and 17 shows the situation after having made this second cut, by means of which a recess 29 with a shape determined by the second face 132 of the auxiliary part 8 has been made in the pillar 3.
[0083] Finally, the technician removes the auxiliary part 8, and thus obtains the interface part 1 with the pillar 3 cut to the desired height and provided with the recess 29, as shown in the image on the right of Figs. 16 and 17.
[0084]
[0085] Optionally, the assembly according to the invention may comprise a tool 21 for keeping the two pieces 1, 8 in the coupled position, that is to say to support the auxiliary part 8 to the interface part 1 in the direction of the central axis Z. Figs. 18 and 19 show an embodiment of this utensil 21, which comprises a rod 22 that moves in a through hole 23 provided in the auxiliary part 8. The rod 22 presses the outer surface of the interface piece 1 with its end. Advantageously, the rod 22 is provided with a thread 24 and the through hole 23 is provided with a corresponding thread 25, so that the rod 22 is screwed into the through hole 23 and thus moves in a controlled manner along the latter until press the outer surface of the interface piece with its end 1. The technician can easily rotate the rod 22 thanks to a handle 26 of the tool 21 that is integral with said rod 22. The rod 22 is held in position, ensuring solidarity of the two pieces 1, 8, by the force exerted by its end against the interface piece 1.
[0086]
[0087]
one
权利要求:
Claims (14)
[1]
1. Assembly to form an interface piece for dental implants with a variable height, characterized in that it comprises:
- an interface piece (1) having a tubular shape with a central axis (Z) and comprising: a base end (2) for the seat of said interface piece (1) on a dental implant body, a pillar (3) for the solidarity of a prosthetic element to said interface piece (1), said pillar (3) being coaxial with said central axis (Z) and extending from said base end (2) to a free end ( 4) of said pillar (3), and an inner duct (5) coaxial with said central axis (Z) that crosses said interface piece (1) from said free end (4) to said base end (2) forming a passage for a fixing screw, said inner conduit (5) being provided with an inner shoulder (6) forming a seat (7) for the head of the fixing screw, and
- at least one auxiliary part (8) formed to be removably coupled to said interface part (1), so that in a coupled position: said auxiliary part (8) is integral with said interface part (1) by at least in a direction of a direction parallel to said central axis (Z); a final section (14) of said pillar (3), adjacent to said free end (4), protrudes through an upper end (11) of said auxiliary part (8); said upper end (11) of the auxiliary part (8) forms a peripheral surface (12) external to said pillar (3), said peripheral surface (12) comprising a first flat face (131) in a first plane (P1) that cuts said final section (14) of the pillar (3) and said central axis (Z) and a second face (132) that does not belong to said first plane (P1) and that continuously extends said first flat face (131) in said peripheral surface (12).
[2]
2. Assembly according to claim 1, characterized in that said first plane (P1) is perpendicular to said central axis (Z).
[3]
3. Assembly according to any of claims 1 or 2, characterized in that said second face (132) comprises an upper section (133) in a second plane (P2) parallel to said central axis (Z), and a lower section (134 ) in a third plane (P3), said second plane (P2) and third plane (P3) cutting said final section (14) of the pillar (3), and said third plane (P3) forming with said second plane (P2) an angle greater than or equal to 90 °.
[4]
4. Assembly according to claim 3, characterized in that said third plane (P3) forms an obtuse angle with said second plane (P2).
[5]
5. Assembly according to claim 4, characterized in that said third plane (P3) forms an angle between 110 ° and 130 ° with said second plane (P2).
[6]
6. Assembly according to any of claims 3 to 5, characterized in that said second face (132) comprises a curved-concave intermediate section (135) that joins said upper section (133) and said lower section (134).
[7]
Assembly according to any one of claims 1 to 6, characterized in that said auxiliary part (8) has an annular shape with an axial passage (9), said axial passage (9) crossing said auxiliary part (8) from a lower end (10) to said upper end (11) forming said peripheral surface (12), said peripheral surface being an annular surface around said axial passage (9); and said auxiliary part (8) being shaped such that said pillar (3) enters said axial passage (9) of the auxiliary part (8) through said lower end (10) and moves freely in a direction parallel to said axis central (Z) to said coupled position; and in said coupled position, said interface part (1) is in solidarity with said auxiliary part (8), by complement of form between said interface part (1) and said auxiliary part (8), in any radial direction with respect to said central axis (Z).
[8]
8. Assembly according to claim 7, characterized in that said auxiliary part (8) has an outer surface with cylindrical shape and provided with grooves (20) distributed along the circular perimeter of said cylindrical shape.
[9]
Assembly according to any one of claims 1 to 8, characterized in that said base end (2) of the interface piece (1) comprises a flange (15) protruding from the outer surface of said pillar (3) in a radial direction with respect to said central axis (Z), said pillar (3) extending from said flange (15) to said end
one
free (4), and in said coupled position said auxiliary part (8) is abruptly supported by its lower end (10) against said flange (15) in the direction of said central axis (Z).
[10]
10. Assembly according to any one of claims 1 to 9, characterized in that said pillar (3) of the interface piece (1) comprises a non-circular outer surface with respect to said central axis (Z), and said auxiliary part (8 ) comprises a non-circular inner surface with respect to said central axis (Z), said non-circular inner surface having a complementary shape to said non-circular outer surface, such that in said coupled position, said interface piece (1) it is connected to said auxiliary part (8) in rotation with respect to said central axis (Z) by complement of form between said outer surface and said inner surface.
[11]
11. Assembly according to claim 10, characterized in that the outer surface of said pillar (3) comprises, in a lower section of said pillar (3) adjacent to said base end (2), at least one protuberance (16 ) forming said non-circular outer surface of the pillar (3), and the inner surface of said auxiliary part (8) comprises at least one recess (17) forming said non-circular inner surface of the auxiliary part (8) and in which, in said coupled position, said protuberance (16) is introduced.
[12]
12. Assembly according to claims 7 and 11, characterized in that said protuberances (16) are at least three and are distributed around said central axis (Z).
[13]
13. Assembly according to any of claims 1 to 12, characterized in that it comprises a tool (21) for joining said auxiliary part (8) to said interface part (1), in said coupled position, in the direction of said central axis (Z), said utensil comprising a rod (22) that moves in a through hole (23) of said auxiliary part (8) and presses with its end the outer surface of said interface piece (1).
[14]
14. Assembly according to claim 13, characterized in that said rod (22) is provided with a thread (24) and said through hole (23) is provided with a thread (25)
one
correspondingly, so that said rod (22) is screwed into said through hole (23) to move along it until it presses with its end the outer surface of said interface piece (1), and said utensil (21) comprises a handle (26) integral with said rod (22).
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ES1154360U|2016-04-12|Screw for dental implantology |
同族专利:
公开号 | 公开日
ES2737500B2|2021-07-30|
引用文献:
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US20110171603A1|2010-01-12|2011-07-14|Raphabio Co., Ltd.|Implant abutment material for tailor-made and method for manufacturing abutment using the same|
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法律状态:
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优先权:
申请号 | 申请日 | 专利标题
ES201830679A|ES2737500B2|2018-07-06|2018-07-06|SET TO FORM AN INTERFACE PIECE FOR DENTAL IMPLANTS WITH A VARIABLE HEIGHT|ES201830679A| ES2737500B2|2018-07-06|2018-07-06|SET TO FORM AN INTERFACE PIECE FOR DENTAL IMPLANTS WITH A VARIABLE HEIGHT|
AU2019281042A| AU2019281042A1|2018-06-04|2019-05-29|Assembly for forming an abutment for a dental implant with an unpredetermined length|
US16/972,257| US20210153983A1|2018-06-04|2019-05-29|Assembly for forming an interface part for dental implants with variable height|
CA3101907A| CA3101907A1|2018-06-04|2019-05-29|Assembly for forming an interface part for dental implants with variable height|
CN201980037766.8A| CN112449586A|2018-06-04|2019-05-29|Assembly for forming an abutment for a dental implant having a length not predetermined|
PCT/ES2019/070357| WO2019234269A2|2018-06-04|2019-05-29|Assembly for forming an interface part for dental implants with variable height|
EP19814901.5A| EP3804656A2|2018-06-04|2019-05-29|Assembly for forming an abutment for a dental implant with a unpredetermined length|
ZA2020/07167A| ZA202007167B|2018-06-04|2020-11-17|Assembly for forming an abutment for a dental implant with an unpredetermined length|
CONC2020/0014680A| CO2020014680A2|2018-06-04|2020-11-26|Set to form an abutment for a dental implant of non-predetermined length|
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