Assembly system and method for abutment assembly

Abstract

Disclosed is an assembly system for an abutment assembly. The assembly system for the abutment assembly comprises: a base jig comprising a base portion having an internal recess formed in the center thereof and a protrusion protruding upward from the upper portion of the base portion along the internal recess; a lower connecting portion having a first through-hole which extends vertically in the center portion thereof and is provided with an inner circumference screw portion, and inserted into the internal recess and supported by the protrusion; a crown having formed in the center thereof a second through-hole that extends vertically, and a lower recess, to which the lower connecting portion is coupled, in the lower portion of the second through-hole; an upper connecting portion having formed in the center thereof a third through-hole that extends vertically, and coupled to the first through-hole of the lower connecting portion after passing through the second through-hole of the crown; and a screw jig which is inserted into the third through-hole to be coupled to the upper connecting portion, and has formed in the lower portion thereof a male screw portion which is fastened to the inner circumference screw portion.

Description

Abutment assembly assembly system and assembly method

[0001] The present invention relates to an abutment assembly assembly system and assembly method.

[0002] In general, an abutment assembly refers to an artificial substitute configured to reproduce the same form and function as a natural tooth, and is composed of an implant having screw threads formed on the outer surface and modeled after the root shape of a natural tooth to be installed in the alveolar bone, an abutment connected to and installed on top of the implant and having an artificial tooth attached thereto, and a fixing screw that fixes the implant and the abutment to each other.

[0003] There are three main methods for attaching an artificial tooth (crown) to an abutment: screw fastening, cement bonding, and a combination of screw fastening and cement bonding.

[0004] First, in the case of the screw fastening method, the prosthesis made as an integral part of the abutment is fastened to the implant implanted in the alveolar bone using a screw, but there is a disadvantage in that deformation may occur due to shrinkage during casting of the prosthesis.

[0005] In addition, the cement bonding method is a method in which the abutment is first attached to the implant, and then the prosthesis is bonded to the upper surface of the abutment with dental cement. However, the cement bonding method has the problem that it takes a lot of time to remove the cement exposed to the outside of the crown, and even if it is removed cleanly, the cement inside the crown can melt and leak into the patient's mouth, causing gingivitis and even implant loss. In addition, the hybrid fastening method that uses screw fastening and cement fastening also has the problem of screw loosening and gingivitis caused by the residual cement, so the cement bonding method is gradually being used less and less.

[0006] Meanwhile, an abutment assembly including a screw-fastened prosthesis is installed by forcing a connecting member into the prosthesis to join the abutment and the prosthesis. At this time, when the connecting member made of metal is forcibly pressed into the zirconia prosthesis and fixed, the connecting member may be deformed depending on the dimensions of the prosthesis, which may cause long-term stability problems.

[0007] Therefore, there is a need for an abutment assembly assembly system and assembly method that can firmly bond a connecting member to a prosthesis without deformation and enable a firm bonding of a crown and an abutment without using cement.

[0008] The present invention is intended to solve the problems of the prior art described above, and the purpose of the present invention is to provide an abutment assembly assembly system and assembly method capable of accurately assembling an abutment assembly that enables a firm bonding of a crown and an abutment without using dental cement so as to minimize deformation of the prosthesis and parts.

[0009] According to one embodiment of the technical idea of ​​the present invention for achieving the above object, an abutment assembly assembly system may include: a base jig having a base portion having an inner groove formed at the center, a protrusion protruding upward along the inner groove from an upper portion of the base portion; a lower connecting portion having a first through hole formed at the center extending vertically and having an inner peripheral thread portion, inserted into the inner groove and supported by the protrusion; a crown having a second through hole formed at the center extending vertically, and a lower groove provided below the second through hole to which the lower connecting portion is coupled; an upper connecting portion having a third through hole formed at the center extending vertically, passing through the second through hole of the crown and coupled to the first through hole of the lower connecting portion; and a screw jig having a male thread portion formed at the bottom to be inserted into the third through hole and coupled to the upper connecting portion, and fastened to the inner peripheral thread portion.

[0010] Additionally, the lower connecting portion may include a first anti-rotation portion inserted into a lower groove of the crown and a second anti-rotation portion inserted into an inner groove of the base jig.

[0011] In addition, the lower groove of the crown may include a circular engagement surface to which the first anti-rotation part is engaged, a groove may be formed on the engagement surface, and the first anti-rotation part may include a protrusion corresponding to the groove.

[0012] In addition, a flat portion is formed on the outer surface of the base jig, and the flat portion can be arranged in the same direction as the yoke or protrusion.

[0013] In addition, the cross-section of the second anti-rotation part may be formed in a polygonal shape, and the inner groove may include a polygonal part corresponding to the second anti-rotation part.

[0014] In addition, the second through hole of the crown may be provided with a step portion, and the upper connecting portion may include a support portion that is supported by being hooked onto the step portion of the crown, and a lower connecting portion that extends from the lower portion of the support portion and is connected to the first through hole of the lower connecting portion.

[0015] In addition, the lower connecting portion includes a connecting piece that is elastically deformable in the radial direction and is divided by a cut groove, a catch projection is formed on an outer surface of the connecting piece, an inner vertical portion having a constant inner diameter is formed in the first through hole of the lower connecting portion, and a boring portion provided below the inner vertical portion and to which the catch projection is engaged is formed, and the connecting piece can be elastically engaged to the inner peripheral surface of the first through hole by contracting radially inwardly while passing through the inner vertical portion and expanding radially outwardly in the boring portion.

[0016] In addition, the lower connecting portion is formed in a circular cross-section, and the lower connecting portion is press-fitted into the first through hole of the lower connecting portion so that the outer circumference thereof can be in close contact with the inner circumference of the first through hole.

[0017] According to one embodiment of the technical idea of ​​the present invention for achieving the above object, an abutment assembly assembly method using an abutment assembly assembly system may include a step of inserting a lower connecting portion having a first through hole formed in the center extending vertically and having an inner peripheral thread portion, into an inner groove formed in the center of a base jig; a step of joining a crown having a second through hole formed in the center extending vertically, to an upper portion of the lower connecting portion; a step of joining an upper connecting portion having a third through hole formed in the center extending vertically, to a screw jig having a male thread portion formed in the lower portion; and a step of joining the upper connecting portion to the lower connecting portion by passing the screw jig coupled to the upper connecting portion through the second through hole and fastening the male thread portion to the inner peripheral thread portion of the lower connecting portion.

[0018] Additionally, in the step of connecting the upper connecting portion to the lower connecting portion, the lower end of the screw jig can be aligned with the lower end of the lower connecting portion.

[0019] Additionally, the screw jig may further include a step of releasing the screw from the inner surface of the lower connecting portion.

[0020] According to the abutment assembly assembly system and method according to the present invention, the abutment assembly parts can be precisely assembled to minimize deformation of the prosthesis and parts without dental cement through a joint structure between the abutment assembly parts using the abutment assembly assembly system, thereby providing the advantage of long-term stability, and the advantage of eliminating inflammation caused by dental cement.

[0021] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

[0022] FIG. 1 is a perspective view of an abutment assembly assembled using an abutment assembly assembly system according to one embodiment of the present invention.

[0023] FIG. 2 is an exploded view of an abutment assembly assembled using an abutment assembly assembly system according to one embodiment of the present invention.

[0024] FIG. 3 is a cross-sectional view of an abutment assembly assembled using an abutment assembly assembly system according to one embodiment of the present invention.

[0025] Figures 4 (a) and (b) are a perspective view and a cross-sectional view, respectively, of an implant during an abutment assembly.

[0026] Figures 5 (a) and (b) are a perspective view and a cross-sectional view, respectively, of an abutment during an abutment assembly.

[0027] Figures 6 (a) to (c) are a perspective view, a plan view, and a cross-sectional view, respectively, of the lower connecting portion of the abutment assembly.

[0028] Figures 7 (a) to (c) are a perspective view, a plan view, and a cross-sectional view, respectively, of a crown in an abutment assembly.

[0029] Figures 8 (a) to (c) are a perspective view, a plan view, and a cross-sectional view, respectively, of the upper connecting portion of the abutment assembly.

[0030] Figures 9 (a) and (b) are a perspective view and a cross-sectional view, respectively, of a screw in an abutment assembly.

[0031] Figure 10 is an exploded perspective view of an abutment assembly assembly system according to one embodiment of the present invention.

[0032] Figures 11 to 13 are drawings showing a process of assembling a prosthesis assembly using an abutment assembly assembly system.

[0033] Figure 14 is a drawing showing the process of assembling a prosthesis assembly to an abutment connected to an implant.

[0034] In order to fully understand the present invention, its operational advantages, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the contents described in the drawings, which illustrate preferred embodiments of the present invention.

[0035] Hereinafter, the present invention will be described in detail by describing preferred embodiments thereof with reference to the attached drawings. The same reference numerals in each drawing represent the same components.

[0036] FIG. 1 is a perspective view of an abutment assembly assembled using an abutment assembly assembly system according to one embodiment of the present invention, FIG. 2 is an exploded view of an abutment assembly assembled using an abutment assembly assembly system according to one embodiment of the present invention, and FIG. 3 is a cross-sectional view of an abutment assembly assembled using an abutment assembly assembly system according to one embodiment of the present invention.

[0037] First, an abutment assembly (1000) assembled using an abutment assembly assembly system (A) according to one embodiment of the present invention will be described.

[0038] Referring to FIGS. 1 to 3, an abutment assembly (1000) assembled using an abutment assembly assembly system (A) according to one embodiment of the present invention includes an implant (100), an abutment (200), a lower connecting portion (300), a crown (400), an upper connecting portion (500), and a screw (600).

[0039] Figures 4 (a) and (b) are a perspective view and a cross-sectional view, respectively, of an implant during an abutment assembly.

[0040] Referring to FIGS. 2, 3, and 4, the implant (100) is formed to have the root shape of a natural tooth to function as a root. In addition, a first internal groove (110) is formed in the center of the implant (100), a first internal peripheral screw portion (120) is installed below the first internal groove (110), and a second external peripheral screw portion (220) of an abutment (200) is coupled to the first internal peripheral screw portion (120). A first external peripheral screw portion (130) is formed on the outer peripheral surface of the implant (100), and the implant (100) is inserted and coupled into the inner side of the alveolar bone.

[0041] Figures 5 (a) and (b) are a perspective view and a cross-sectional view, respectively, of an abutment during an abutment assembly.

[0042] Referring to FIGS. 2, 3 and 5, the abutment (200) is coupled to the implant (100) to support the lower connecting portion (300) and the crown (400), and a second internal groove (240) is formed on the upper surface so that the lower connecting portion (300) can be coupled.

[0043] In addition, the abutment (200) is configured to include a lower portion (210), a second outer peripheral screw portion (220), and an upper portion (230).

[0044] The lower portion (210) is inserted into the first inner groove (110) of the implant (100), and the outer circumference of the lower portion (210) may be formed in a tapered shape in which the diameter gradually narrows toward the bottom. In addition, the lower surface of the crown (400) may be supported on the upper surface (211) of the lower portion (210).

[0045] The second outer peripheral screw portion (220) is formed to extend below the lower portion (210), and the outer peripheral surface is provided with screw threads that are fastened to the first inner peripheral screw portion (120) of the implant (100).

[0046] The upper portion (230) protrudes from the upper portion of the lower portion (210) to the outside of the implant (100). The upper portion (230) has a circular cross-section and can be formed into a pyramid shape with an outer diameter that narrows as it goes upward.

[0047] The second inner groove (240) of the abutment (200) may include an inner inclined portion (241), a polygonal portion (242), and a second inner peripheral screw portion (243).

[0048] More specifically, the second inner groove (240) of the abutment (200) has an inner inclined portion (241) that has a circular cross-section and an inner diameter that becomes narrower as it goes downward from the upper surface entrance at a certain depth, a polygonal portion (242) that has a polygonal cross-section at a certain depth below the inner inclined portion (241) and to which a lower connecting portion (300) is connected, and a second inner peripheral thread portion (243) is installed below the polygonal portion (242), and a screw (600) is fastened to the second inner peripheral thread portion (243).

[0049] Figures 6 (a) to (c) are a perspective view, a plan view, and a cross-sectional view, respectively, of the lower connecting portion of the abutment assembly.

[0050] Referring to FIGS. 2, 3, and 6, the lower connecting portion (300) is combined with the upper connecting portion (500) to connect the abutment (200) and the crown (400), and may be made of a metal material such as titanium, but is not limited thereto.

[0051] The lower connecting part (300) and the upper connecting part (500) are fastened to the abutment (200) while being coupled with the crown (400) (prosthesis assembly). The lower connecting part (300) includes a first anti-rotation part (310) and a second anti-rotation part (320), and a first through hole (330) extending vertically is formed in the center of the lower connecting part (300). The first anti-rotation part (310) is coupled to a lower groove (410) of the crown (400), preferably to a coupling surface (412). At this time, the lower groove of the crown (400) includes a circular coupling surface (412) to which the first anti-rotation part (310) is coupled, and a recess (413) is formed on the coupling surface (412), and one or more protrusions (311) may be formed on the first anti-rotation part (310).

[0052] The above protrusion (311) protrudes radially outward on the outer surface of the first anti-rotation part (310), and a recess (413) corresponding to the protrusion (311) is formed on the joining surface (412), so that the lower connecting part (300) and the crown (400) can be recessed and joined to each other.

[0053] That is, the first anti-rotation portion (310) corresponds to the yoke (413), and this protrusion (311) can be aligned with the yoke (413) formed on the joining surface (412) of the crown (400).

[0054] Additionally, when the protrusion (311) is aligned and joined to the lower portion (413), relative rotation of the crown (400) with respect to the lower connecting portion (300) can be prevented.

[0055] Meanwhile, the second anti-rotation part (320) is inserted and supported in the second inner groove (240) of the abutment (200) and includes a lower extension part (321) and a second anti-rotation surface (322).

[0056] The lower extension portion (321) extends downward from the bottom surface of the first anti-rotation portion (310) and may have a circular cross-section. In an exemplary embodiment, a portion of the outer surface of the lower extension portion (321) may be formed in a tapered shape at an angle corresponding to the inner inclined portion (241).

[0057] The lower portion of the lower extension portion (321) may be formed in a polygonal shape corresponding to the polygonal portion (242) of the abutment (200). Specifically, a plurality of second rotation-preventing surfaces (322) may be formed in the lower portion of the lower extension portion (321) in a shape in which one side of the outer circumferential surface of the lower extension portion (321) is cut in a vertical direction.

[0058] That is, when the second rotational surface (322) is aligned and combined with the polygonal portion (242) of the abutment (200), relative rotation of the lower connecting portion (300) with respect to the abutment (200) can be prevented.

[0059] In an exemplary embodiment, the protrusion (311) of the first anti-rotation portion (310) may be formed to protrude perpendicularly toward the same direction as one of the second anti-rotation surfaces (322), and additionally, a separate mark (identification mark) may be displayed on the second anti-rotation surface (322) positioned in the same direction as the protrusion (311).

[0060] When the first rotation prevention part (310) of the lower connecting part (300) enters the lower groove (410) of the crown (400), the alignment between the protrusion (311) of the lower connecting part (300) and the concave part (413) of the crown (400) is not visually confirmed and may therefore fluctuate during the entry process. At this time, if one surface (the surface with the identification mark) of the second rotation prevention surfaces (322) is formed in the same direction as the protrusion (311), it becomes possible to visually confirm the alignment between the protrusion (311) and the concave part (413) of the crown (400) through one surface (the surface with the identification mark) of the rotation prevention surfaces (322).

[0061] The first through hole (330) may include an inner vertical portion (331) having a circular cross-section and a constant inner diameter from the upper surface entrance to a certain depth downward, and a boring portion (332) formed below the inner vertical portion (331) and having an inner diameter larger than the inner diameter of the inner vertical portion (331).

[0062] Additionally, a third inner peripheral screw portion (333) may be formed in the first through hole (330). The screw (600) may be temporarily fastened to the third inner peripheral screw portion (333) while passing through the first through hole (330).

[0063] Figures 7 (a) to (c) are a perspective view, a plan view, and a cross-sectional view, respectively, of a crown in an abutment assembly.

[0064] Referring to FIGS. 2, 3, and 7, a crown (400) forms the outer shape of an artificial tooth and can be custom-processed using a CAD or CAM system based on a registered library in a dental laboratory. The crown (400) may be made of zirconia, but is not limited thereto.

[0065] A lower groove (410) is formed at the bottom of the crown (400), and a second through hole (420) is formed in the center, which is connected to the lower groove (410) and extends vertically.

[0066] Specifically, the lower groove (410) may include an inclined support surface (411), a joining surface (412), and a yoke (413). The inclined support surface (411) may have a circular cross-section and may be formed in a tapered shape in which the inner diameter becomes narrower from the bottom to the top of the lower groove (410).

[0067] The joining surface (412) is sunken upwards by a certain depth from the top of the inclined support surface (411) and can be formed in a cylindrical shape. The joining surface (412) faces the outer surface of the first anti-rotation part (310) of the lower connecting part (300).

[0068] In addition, the joining surface (412) may be formed with one or more flat portions (not shown) formed perpendicular to the radial direction of the lower groove (410). The flat portion has a recess (413) formed so that the protrusion (311) of the lower connecting portion (300) is caught and aligned, thereby preventing relative rotation of the crown (400) with respect to the lower connecting portion (300).

[0069] In addition, the second through hole (420) may be provided with a step portion (421) that protrudes radially inward. The support portion (510) of the upper connecting portion (500) may be hung and supported on the step portion (421). The upper surface of the step portion (421) may be formed as a sloped surface having a downward slope.

[0070] Figures 8 (a) to (c) are a perspective view, a plan view, and a cross-sectional view, respectively, of the upper connecting portion of the abutment assembly.

[0071] Referring to FIGS. 2, 3, and 8, the upper connecting portion (500) has a third through hole (530) formed in the center extending vertically, and includes a support portion (510) and a lower connecting portion (520). The upper connecting portion (500) may be made of a metal material such as titanium, but is not limited thereto.

[0072] The support portion (510) is formed in a cylindrical shape and is formed to have an outer diameter greater than the inner diameter of the step portion (421). A portion of the outer surface of the support portion (510) may be formed in a tapered shape corresponding to the inclined surface of the step portion (421).

[0073] The upper surface of the support member (510) may be provided with a mounting member (511) whose inner diameter becomes narrower as it goes downward. The mounting member (511) may support the head (610) of the screw (600), more specifically, the tapered portion (611) formed at the lower end of the head (610).

[0074] The lower joint (520) can be elastically deformed in the radial direction by including at least two joint pieces (521) separated by a vertical cut groove (522) formed from the support (510) to the lower end.

[0075] The cut grooves (522) may be formed so as to form an equal angle between adjacent lower cut grooves (522) along the circumference of the lower connecting portion (520). For example, the lower cut grooves (522) may be formed so as to form a 90-degree interval from each other based on the center of the third through hole (530), and thereby the lower connecting portion (520) may be formed to include a total of four connecting pieces (521). However, the number of lower cut grooves (522) is not limited thereto, and may be formed in various numbers as needed.

[0076] The lower coupling portion (520) can be fastened to the first through hole (330) of the lower coupling portion (300) by snap coupling. Specifically, the coupling piece (521) has a diameter corresponding to the inner vertical portion (331) of the first through hole (330). A catch (523) protruding radially outward can be formed at the end of the coupling piece (521). This catch (523) can induce snap coupling to the boring portion (332) of the lower coupling portion (300).

[0077] That is, the connecting piece (521) can be elastically contracted and deformed as the catch (523) comes into contact with the inner surface of the inner vertical portion (331) when inserted into the first through hole (330). Thereafter, when the insertion of the connecting piece (521) into the first through hole (330) is completed, the catch (523) can be elastically restored as it passes through the inner vertical portion (331) and settles into the boring portion (332).

[0078] In an exemplary embodiment, the coupling piece (521) of the lower coupling portion (520) can be expanded outward by the body portion (620) of the screw (600) when the screw (600) is inserted into the second through hole (530) and can be brought into close contact with the inner vertical portion (331). Accordingly, the coupling between the lower coupling portion (300) and the upper coupling portion (500) can be made more firmly.

[0079] In this way, the upper connecting part (500) can provide a sense of connection to the user by being snap-connected to the lower connecting part (300), and thereby the crown (400) can be detachably connected to the abutment (200). That is, the connection of the crown (400) and the abutment (200) is possible without using cement, thereby preventing the crown (400) from being displaced from its original position due to gum repulsion.

[0080] In addition, the lower connecting portion (300) and the upper connecting portion (500) absorb and disperse the external force by reproducing a fluidity almost similar to the movement of natural teeth through elastic deformation when an external force is applied, thereby alleviating the impact applied to the alveolar bone during repetitive chewing and simultaneously implementing the role of a periodontal ligament.

[0081] Figures 9 (a) and (b) are a perspective view and a cross-sectional view, respectively, of a screw in an abutment assembly.

[0082] Referring to FIGS. 2, 3, and 10, a screw (600) passes through a second through hole (420) of a crown (400) and is coupled to a second inner peripheral screw portion (243) of an abutment (200). The screw (600) may be made of a metal material such as titanium, but is not limited thereto. The screw (600) includes a head portion (610) and a body portion (620).

[0083] The head (610) may have a driver groove formed on its upper surface so that a dental driver can be inserted and rotated. The driver groove has six grooves formed at regular intervals along the circumference of the inner wall of the head (610) so that a hexagonal dental driver can be inserted. However, the present invention is not limited thereto, and the number of grooves in the driver groove may be formed differently to correspond to a dental driver of a triangular, square, or pentagonal shape.

[0084] A tapered portion (611) may be formed at the lower end of the head portion (610). The tapered portion (611) is a portion connecting the head portion (610) and the body portion (620), and may be formed such that its diameter gradually decreases toward the lower end. When the screw (600) passes through the second through hole (420) of the crown (400) and is fastened to the second inner peripheral screw portion (243) of the abutment (200), the tapered portion (611) is supported by the mounting portion (511) of the upper connecting portion (500).

[0085] At this time, as the screw (600) made of metal is supported on the fixing portion (511) of the upper connecting portion (500) made of metal, the friction between them is improved, thereby preventing the screw (600) from loosening.

[0086] The body portion (620) has a cylindrical shape that extends lengthwise from the tapered portion (611), and a third outer peripheral surface screw portion (621) that is partially connected to the second inner peripheral surface screw portion (243) of the abutment (200) is formed on the outer peripheral surface.

[0087] Hereinafter, an abutment assembly assembly system according to one embodiment of the present invention will be described in detail.

[0088] Figure 10 is an exploded perspective view of an abutment assembly assembly system according to one embodiment of the present invention.

[0089] Referring to FIG. 10, an abutment assembly assembly system (A) according to one embodiment of the present invention includes a configuration and means for assembling a prosthesis assembly excluding an implant (100) and an abutment (200) in an abutment assembly (1000), wherein the prosthesis assembly means an assembly in which a lower connecting part (300), a crown (400), and an upper connecting part (500) are assembled.

[0090] At this time, the implant (100) and the abutment (200) are pre-planted in the alveolar bone, and the prosthesis assembly is assembled using the abutment assembly assembly system (A) of the present invention. Then, the assembled prosthesis assembly is assembled to the abutment (200), thereby completing the implant procedure and assembly.

[0091] Meanwhile, an abutment assembly assembly system (A) according to one embodiment of the present invention may include a base jig (10), a lower connecting part (300), a crown (400), an upper connecting part (500), and a screw jig (20).

[0092] First, the base jig (10) may be provided with a base portion (11) having an internal groove (12) formed in the center, and a protrusion (13) protruding upward along the internal groove (12) from the upper portion of the base portion (11).

[0093] The above base jig (10) is a part that provides work for assembling a prosthesis assembly, supports a lower connecting part (300) and a crown (400), and has an internal groove (12) formed on the upper surface so that the lower connecting part (300) can be joined.

[0094] More specifically, the inner groove (12) of the base jig (10) may have a circular cross-section from the upper surface entrance downward at a certain depth, and a polygonal cross-section downward at a certain depth, so as to be formed into a polygonal shape corresponding to the second rotation-preventing surface (322) of the polygonal shape of the lower connecting portion (300). That is, when the second rotation-preventing surface (322) of the polygonal shape of the lower connecting portion (300) is aligned and coupled with the polygonal portion of the inner groove (12), relative rotation of the lower connecting portion (300) with respect to the base jig (10) can be prevented.

[0095] In addition, the base jig (10) is preferably formed with a cylindrical outer surface, and may be provided with a flat surface (not shown) with a portion of the outer surface cut off to facilitate gripping by the user. The cut surface of this flat surface is formed to have the same direction as the second rotation-preventing surface (322), which can help the user recognize the alignment direction.

[0096] Next, the lower connecting portion (300) is formed with a first through hole (330) that extends vertically in the center and has a screw thread on the inner surface, and is inserted into the inner groove (12) and is supported by the protrusion (13).

[0097] This lower connecting portion (300) is one of the components of the abutment assembly (1000), and has been described together with the description of the abutment assembly (1000), so a detailed description thereof will be omitted.

[0098] Next, the crown (400) may be provided with a second through hole (420) extending vertically in the center, and a lower groove (410) to which the lower connecting part (300) is coupled may be provided below the second through hole (420).

[0099] The crown (400) described above is one component of the abutment assembly (1000), and has been described together with the abutment assembly (1000), so a detailed description thereof will be omitted.

[0100] Next, the upper connecting portion (500) is formed with a third through hole (530) extending vertically in the center, and is a portion that passes through the second through hole (420) of the crown (400) and is coupled to the first through hole (330) of the lower connecting portion (300).

[0101] This upper connecting portion (500) is one of the components of the abutment assembly (1000), and has been described together with the description of the abutment assembly (1000), so a detailed description thereof will be omitted.

[0102] Lastly, the screw jig (20) is inserted into the third through hole (530) and is combined with the upper connecting portion (500), and a male screw portion (23) that is fastened to the inner peripheral screw portion is formed at the bottom.

[0103] The above screw jig (20) is a tool for assembling the lower connecting part (300), crown (400) and upper connecting part (500) mounted on the base jig (10) so that they are screw-connected to each other.

[0104] The above screw jig (20) comprises a gripping portion (21) at the top that the user grips with his / her hand, a cylindrical pillar portion (22) extending to the bottom of the gripping portion (21), and a male screw portion (23) having a screw thread formed at the end of the pillar portion (22).

[0105] The above grip portion (21) may have a polygonal outer surface to facilitate gripping by the user. In addition, one side of the outer surface may be formed concavely inward to enhance gripping ability by the user.

[0106] The above pillar portion (22) is a portion that extends in length to be connected to the lower end of the grip portion, and may be formed in a form that extends in the length direction to a size smaller than the diameter of the grip portion (21).

[0107] The above screw portion (23) is a portion that is screw-connected to the third inner peripheral screw portion (333) of the lower connecting portion (300), and a step is formed to have a diameter smaller than the diameter of the pillar portion (22). The upper connecting portion (500) is inserted into the step portion, and while the upper connecting portion (500) is inserted into the step portion, the screw portion (23) is screw-connected to the third inner peripheral screw portion (333) in a positive direction (e.g., clockwise), so that the lower connecting portion (300), the crown (400), and the upper connecting portion (500) are joined in a close contact with each other and can be assembled into a prosthetic assembly.

[0108] Meanwhile, when the screw jig (20) is rotated in the opposite direction (e.g., counterclockwise) while the prosthesis assembly is assembled so that the screw fastening of the male screw portion (23) is released from the third inner peripheral screw portion (333), the assembly of the prosthesis assembly can be maintained, but it can be separated from the base jig (10).

[0109] After completing the assembly of the prosthesis assembly using the abutment assembly assembly system (A) of the present invention, the assembled prosthesis assembly is assembled to the abutment (200) previously implanted in the alveolar bone, thereby completing the implant procedure and assembly.

[0110] Hereinafter, a method for assembling an abutment assembly using an abutment assembly assembly system according to one embodiment of the present invention will be described in detail.

[0111] Figures 11 to 13 are drawings showing a process of assembling a prosthesis assembly using an abutment assembly assembly system.

[0112] Referring to FIGS. 11 to 13, a method of assembling a prosthesis assembly among the assembly methods of assembling an abutment assembly (1000) using an abutment assembly assembly system (A) according to one embodiment of the present invention is described.

[0113] That is, before assembling the prosthesis assembly to the abutment (200) implanted in the alveolar bone, a process of assembling the prosthesis assembly can be performed using the abutment assembly assembly system (A).

[0114] The abutment assembly assembly assembly method of the present invention is:

[0115] A step (S10) in which a lower connecting part (300) having a first through hole (330) extending vertically in the center and having a screw part on the inner surface is inserted into an inner groove (12) formed in the center of a base jig (10);

[0116] A step (S20) in which a crown (400) having a second through hole (420) extending vertically in the center is formed is joined to the upper portion of the lower connecting portion (300);

[0117] A step (S30) in which an upper connecting portion (500) in which a third through hole (530) extending vertically in the center is formed is joined to a screw jig (20) in which a male screw portion (23) is formed in the lower portion; and

[0118] The screw jig (20) to which the upper connecting part (500) is coupled passes through the second through hole (420) and the screw part (23) is fastened to the inner peripheral screw part of the lower connecting part (300), thereby including a step (S40) in which the upper connecting part (500) is coupled to the lower connecting part (300).

[0119] At this time, in the step (S40) where the upper connecting part is connected to the lower connecting part, the lower end of the screw jig (20) can be aligned with the lower end of the lower connecting part (300).

[0120] Meanwhile, the abutment assembly assembly method of the present invention may further include a step (S50) in which the screw jig (20) is released from the inner peripheral screw portion of the lower connecting portion (300).

[0121] The process of assembling a prosthesis assembly using the abutment assembly assembly method of the present invention is specifically described.

[0122] First, the lower connecting part (300) is inserted into the inner groove (12) of the prepared base jig (10) and joined.

[0123] Next, the crown (400) is supported on the base jig (10) and connected to the lower connection part (300) so that the lower groove (410) of the crown (400) is connected to the upper part of the lower connection part (300).

[0124] At this time, the crown (400) is aligned with the protrusion (311) of the lower connecting part (300) and is joined.

[0125] Next, prepare the upper connection part (500) by joining it to the screw part (23) of the screw jig (20).

[0126] Next, the screw jig (20) is inserted so that it penetrates the second through hole (420) of the crown (400) with the upper connecting part (500) fitted.

[0127] Next, turn the screw jig (20) so that the screw portion (23) is screwed into the third inner surface screw portion (333) of the lower connecting portion (300).

[0128] At this time, the step portion of the screw jig (20) serves as a guide that can recognize that the upper connecting portion (500) is properly positioned on the lower connecting portion (300), and the state in which the step portion is screw-connected to the upper connecting portion (500) in close contact with the upper connecting portion can be recognized as a fixed state.

[0129] Next, when the prosthesis assembly is completed, the screw jig (20) is rotated in the reverse direction to separate the screw jig (20) from the prosthesis assembly.

[0130] At this time, the lower connecting part (300), crown (400) and upper connecting part (500) are maintained in a mutually connected state, and only the screw jig (20) can be separated from the prosthesis assembly.

[0131] As described above, the prosthesis assembly can be completed using the abutment assembly assembly system (A) of the present invention.

[0132] Hereinafter, a process of assembling a prosthesis assembly assembled through an assembly method using an abutment assembly assembly system (A) according to one embodiment of the present invention as described above, into an abutment (200) finally implanted into the alveolar bone will be specifically described.

[0133] Figure 14 is a drawing showing the process of assembling a prosthesis assembly to an abutment connected to an implant.

[0134] Referring to Fig. 14, in a prosthesis assembly assembled according to an assembly method using an abutment assembly assembly system (A), when the lower connecting portion (300) is inserted into the abutment (200) by aligning the second rotation-preventing surface (322) of the second rotation-preventing portion (320) and the polygonal portion (242) of the abutment (200), the temporary connection of the crown (400) and the abutment (200) is completed.

[0135] Thereafter, when the third outer peripheral thread portion (621) of the screw (600) is fastened to the second inner peripheral thread portion (243) of the abutment (200) using a driver (1), the tapered portion (611) of the screw (600) is supported by the mounting portion (521) of the upper connecting portion (500), and thus the connection between the lower connecting portion (300), the holding portion (500), and the crown (400) becomes more solid, thereby completing the implant procedure and assembly.

[0136] According to the abutment assembly assembly system and method according to the technical idea of ​​the present invention, the abutment assembly parts can be precisely assembled to minimize deformation of the prosthesis and parts without dental cement through a joint structure between the abutment assembly parts using the abutment assembly assembly system, so that there is an advantage of long-term stability, and there is an advantage of eliminating inflammation caused by dental cement.

[0137] As described above, the best practice embodiments have been disclosed in the drawings and specifications. While specific terms have been used herein, they are used solely for the purpose of describing the present invention and are not intended to limit the meaning or scope of the invention as defined in the claims. Therefore, those skilled in the art will understand that various modifications and equivalent embodiments are possible. Accordingly, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

[0138] The present invention is implemented as an abutment assembly assembly system and assembly method that can accurately assemble an abutment assembly that enables a strong bonding of a crown and an abutment without using dental cement so as to minimize deformation of a prosthesis and parts, but can be applied to various industrial fields within the scope of the configuration as in the present invention.

Claims

1. A base jig having a base portion having an inner groove formed in the center and a protrusion protruding upward along the inner groove from the upper portion of the base portion; A lower connecting portion having a first through hole extending vertically in the center and having a screw portion on the inner surface, and inserted into the inner groove and supported by the protrusion; A crown having a second through hole extending vertically in the center and a lower groove provided below the second through hole to which the lower connecting part is joined; An upper connecting portion having a third through hole extending vertically in the center and passing through the second through hole of the crown and connected to the first through hole of the lower connecting portion; and An abutment assembly assembly system comprising a screw jig, which is inserted into a third through hole and coupled with the upper connecting portion, and has a male screw portion formed on the lower portion that is fastened to the inner peripheral screw portion.

2. In paragraph 1, The above lower connection part is, An abutment assembly assembly system characterized by including a first anti-rotation part inserted into a lower groove of the crown and a second anti-rotation part inserted into an inner groove of the base jig.

3. In paragraph 2, The lower groove of the above crown is The first anti-rotation part comprises a circular joint surface to which it is joined, and a groove is formed on the joint surface. The above first anti-rotation part is, An abutment assembly assembly system characterized by including a protrusion corresponding to the above-mentioned portion.

4. In paragraph 3, An abutment assembly assembly system characterized in that a flat portion is formed on the outer surface of the base jig, and the flat portion is arranged in the same direction as the yoke or protrusion.

5. In paragraph 2, An abutment assembly assembly system, characterized in that the cross-section of the second anti-rotation portion is formed in a polygonal shape, and the inner groove includes a polygonal portion corresponding to the second anti-rotation portion.

6. In paragraph 1, The second through hole of the above crown is provided with a step portion, The upper connecting part above is, A support member that is supported by hanging on the protrusion of the crown; and An abutment assembly assembly system characterized by including a lower connecting portion extending from the lower portion of the support portion and connected to the first through hole of the lower connecting portion.

7. In paragraph 6, The above lower joint part is, It comprises a joint piece which is elastically deformable in the radial direction and is separated by a cut groove, A stumbling block is formed on the outer surface of the above-mentioned joint, The first through hole of the lower connecting portion is formed with an inner vertical portion having a constant inner diameter, and a boring portion provided below the inner vertical portion and to which the catch is coupled. An abutment assembly assembly system characterized in that the above-mentioned joining piece is contracted radially inwardly while passing through the inner vertical portion and expanded radially outwardly in the boring portion to be elastically joined to the inner peripheral surface of the first through hole.

8. In paragraph 6, The above lower joint is formed with a circular cross-section, An abutment assembly assembly system, characterized in that the lower connecting portion is press-fitted into the first through hole of the lower connecting portion so that the outer surface thereof is in close contact with the inner surface of the first through hole.

9. In an abutment assembly assembly method using an abutment assembly assembly system according to any one of claims 1 to 8, A step in which a lower connecting portion having a first through hole extending vertically in the center and having a screw portion on the inner surface is inserted into an internal groove formed in the center of a base jig; A step in which a crown having a second through hole extending vertically in the center is joined to the upper portion of the lower connecting portion; A step of joining an upper connecting portion having a third through hole extending vertically in the center to a screw jig having a male screw portion formed at the bottom; and An abutment assembly assembly assembly method, comprising: a step of a screw jig having an upper connecting portion coupled thereto passing through the second through hole and a male screw portion being fastened to an inner peripheral screw portion of a lower connecting portion, thereby coupling the upper connecting portion to the lower connecting portion.

10. In paragraph 9, An abutment assembly assembly assembly method, characterized in that in the step of connecting the upper connecting portion to the lower connecting portion, the lower end of the screw jig is aligned with the lower end of the lower connecting portion.

11. In paragraph 9, An abutment assembly assembly assembly method, further comprising a step of releasing a screw jig from a threaded portion on an inner surface of a lower connecting portion.

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