Gap-sealing type implant structure and implant structure installing method using same

Abstract

The present invention relates to a gap-sealing type implant structure in which protrusions and grooves are formed in an abutment and a prosthesis, respectively, to induce a temporary binding force to be exerted by means of mutual fitting, and in particular, a method of pre-installing a packing made of a silicone or Teflon material on the abutment and then coupling the packing to the prosthesis is adopted to block a gap between the abutment and the prosthesis, thereby preventing various foreign substances generated during masticatory activities from penetrating between the abutment and the prosthesis to exhibit long-term hygiene, and maximizing convenience or efficiency of use due to ease of handling, use, maintenance, and repair resulting from a structure differentiated from the prior art. When the abutment (100) and the prosthesis (200) are coupled to each other, ring grooves (1) are recessed in contact surfaces in contact with each other, respectively, and a ring-shaped packing (300) is pre-installed in the ring groove of the prosthesis to be temporarily fixed, and then the prosthesis is coupled to the abutment, wherein the packing installed on the prosthesis is interposed in the ring groove of the abutment to seal the contact surfaces, thereby contributing to the prevention of penetration of foreign substances.

Description

Gap-sealed implant structure and method for installing an implant structure using the same

[0001] Generally, an implant refers to a procedure in which an implant structure is implanted into a patient's gums. This structure consists of an artificial root (fixture) implanted into the patient's alveolar bone, a prosthesis (crown) restored to be identical to the lost tooth, an abutment that secures the prosthesis to the artificial root, and a screw that secures the prosthesis to the abutment.

[0002]

[0003] For example, Registered Patent Publication No. 10-1164444, "Implant Assembly," is disclosed as one of the technologies related to implants. This technology aims to propose a head portion that shortens the healing time by shielding the surgical site during the approximately 3 to 6-month period for the jawbone and artificial tooth root to osseofuse before fixing the prosthesis, after perforating a part of the jawbone where the prosthesis is to be implanted and implanting an artificial tooth root. The head portion is installed in the patient's oral cavity using an abutment attached to the artificial tooth root, and by covering a set area of ​​the gum where the tooth was extracted, it contributes to preventing bacterial penetration as well as compensating for aesthetic functions.

[0004] The above-mentioned prior art is structured such that, while the head portion is stably seated on an abutment partially exposed from the artificial tooth root, a bolt-shaped connecting member is penetrated vertically in a single motion to firmly fix or restrain it.

[0005]

[0006] Meanwhile, another similar technology is disclosed in Korean Patent Publication No. 10-2011-0076373, "PSN Prosthetic Implant Abutment." This technology comprises a structure in which multiple grooves are formed in the vertical direction at set intervals on the connection surface of an abutment to which a prosthesis is attached, and dental resin cement is injected into the grooves while the prosthesis is attached to the abutment, thereby firmly fixing or restraining the abutment and the prosthesis.

[0007]

[0008] Generally, in an implant procedure, a fixture is placed in the patient's gum, and while the fixture adapts to the gum, an oral scan is performed to fabricate the prosthesis and determine its placement. This oral scanning can be carried out by sequentially connecting the abutment and scan body to the fixture, securing them with screws, and then taking images using an oral scanner with the scan body as the reference.

[0009] However, previously, this process was performed within the patient's oral cavity, and due to the narrowness of the oral cavity and the patient's movements, the practitioner experienced significant fatigue and precise, accurate procedures were impossible. In addition, existing implant structures caused various problems, such as bad breath and reduced lifespan of the implant structure, as foreign substances penetrated through the micro-gaps remaining at the joint between the abutment and the prosthesis.

[0010]

[0011] Therefore, the present invention proposes a technology that can resolve problems such as bad breath and reduced lifespan by blocking the penetration of foreign substances into the gap between the abutment and the prosthesis.

[0012]

[0013] < Prior Art Literature >

[0014] (Patent Document 1) Registered Patent Publication No. 10-1164444 "Implant Assembly"

[0015] (Patent Document 2) Published Patent Application No. 10-2011-0076373 "PSN Prosthetic Implant Abutment"

[0016] The present invention was created to more actively resolve the aforementioned problems, and the main objective is to provide a technology that can completely seal the gap remaining at the joint between the abutment and the prosthesis, thereby actively preventing external foreign substances caused by the patient's chewing activity, etc., from penetrating into the interior of the abutment or prosthesis through the gap after implant surgery.

[0017] To achieve the above-mentioned problem, the gap-sealing implant structure proposed in the present invention is as follows.

[0018]

[0019] The implant structure of the present invention is characterized in that a ring groove (1) of a set diameter is formed in a recessed portion (130) of an abutment (100) on which a prosthesis (200) is seated and supported, and a projection (240) corresponding one-to-one with the ring groove of the abutment is formed protruding from the bottom portion of the prosthesis, and a packing (300) made of silicone or Teflon resin is first installed and fixed in the ring groove of the abutment, and then the prosthesis is coupled to the abutment, wherein the projection of the prosthesis presses against the packing and intervenes in the ring groove of the abutment, thereby sealing the mutual coupling surface and contributing to preventing the penetration of foreign substances.

[0020]

[0021] Additionally, the abutment (100) comprises: a fastening part (110) formed with a set diameter and length and having a screw thread formed along the outer circumference, which is inserted vertically into a fixture implanted in the patient's alveolar bone and is secured inside the fixture; a body (120) which is formed to extend with a gradually expanding diameter from the top of the fastening part to expand the contact surface with the gums and induce stable support of the abutment; a seating part (130) which protrudes upward with a further expanded diameter from the top of the body, the height of protrusion determined according to the patient's oral condition, and contributes to the sequential seating and support of the packing (300) and the prosthesis (200); an insertion part (140) which protrudes upward with a set diameter from the top center of the seating part to induce fastening of the prosthesis in a one-touch manner; and a ring groove (1) which is formed by being recessed to a set depth along the edge of the upper surface of the seating part to allow the intervention of a projection (240) protruding downward from the prosthesis (200).

[0022]

[0023] Additionally, the above-mentioned prosthesis (200) comprises: a body (210) having a shape that artificially restores a natural tooth; a through hole (220) that allows the entry of a screw by vertically penetrating the body; an insertion groove (230) formed by a polygonal depression on the bottom surface of the body to induce the insertion of an abutment (100); and a projection (240) that protrudes downward along the edge of the bottom surface of the body in the form of a ring corresponding one-to-one with the ring groove (1) of the abutment and is fitted into the ring groove when combined with the abutment.

[0024]

[0025] Additionally, the packing (300) is formed by processing silicone or dental Teflon into a ring shape and is temporarily bonded to the abutment (100) via a dental bond applied to the surface of the packing or the ring groove (1).

[0026]

[0027] The implant installation method proposed by the present invention utilizes the aforementioned implant structure and comprises: a fixture implantation step (S10) of implanting a fixture in the patient's oral cavity; an abutment fastening step (S20) of connecting an abutment (100) to the fixture; a packing installation step (S30) of applying dental adhesive to the seating portion (130) of the abutment (100) and then seating and temporarily fixing a packing (300); and a prosthesis coupling step (S40) of connecting a prosthesis (200) to the insertion portion (140) of the abutment, wherein the packing is pressed with the protrusion of the prosthesis and fitted and pressed into the ring groove, thereby blocking the gap between the seating portion of the abutment and the bottom surface of the prosthesis through the packing.

[0028] According to the present invention, which is configured as described above, the packing completely blocks and seals the gap remaining at the joint between the abutment and the prosthesis, thereby preventing the penetration of various foreign substances and secretions generated during the chewing process. Consequently, it is possible to effectively resolve problems such as bad breath and reduced lifespan of the implant structure.

[0029] FIG. 1 is a front view of an abutment constructed according to a preferred embodiment of the present invention.

[0030] FIG. 2 is an example diagram of the combined form of an abutment and a packing proposed by the present invention.

[0031] FIG. 3 is an exemplary diagram of a prosthesis proposed by the present invention.

[0032] FIG. 4 is an exemplary diagram showing a shape in which the contact surface between the abutment and the prosthesis is sealed by the combination and packing of the abutment and the prosthesis proposed by the present invention.

[0033] FIG. 5 is a flowchart sequentially listing the installation process of the implant structure proposed by the present invention.

[0034] Hereinafter, the structure of the present invention and the resulting operation and effects will be described collectively with reference to the attached drawings.

[0035]

[0036] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Furthermore, throughout the entire specification, the same reference numerals refer to the same components.

[0037]

[0038] The present invention relates to an implant structure used as a denture during an implant procedure to restore a patient's lost teeth.

[0039]

[0040] Above all, the present invention relates to a gap-sealing implant structure in which convenience or efficiency of use is maximized due to ease of handling, use, maintenance, and repair derived from a structure differentiated from existing ones, such as by forming protrusions and grooves on the abutment and the prosthesis, respectively, to induce the exertion of a temporary restraining force through mutual fitting, and in particular, by adopting a method of pre-installing a packing made of silicone or Teflon material on the abutment and then combining it with the prosthesis to seal the gap between the abutment and the prosthesis, thereby preventing various foreign substances generated during masticatory activity from penetrating between the abutment and the prosthesis and ensuring long-term hygiene.

[0041]

[0042] FIG. 1 is a front view of an abutment constructed according to a preferred embodiment of the present invention, FIG. 2 is an example diagram of the combined form of an abutment and packing proposed by the present invention, FIG. 3 is an example diagram of a prosthesis proposed by the present invention, FIG. 4 is an example diagram showing a shape in which the contact surface between the abutment and the prosthesis is sealed by the combination of the abutment and the prosthesis and packing proposed by the present invention, and FIG. 5 is a flowchart sequentially listing the installation process of an implant structure proposed by the present invention.

[0043]

[0044] Prior to describing the present invention, even when conventional implant structures are manufactured through high-precision machining, minute gaps occur between the abutment and the prosthesis. Over time, these gaps expand, allowing various food particles and foreign substances to penetrate, thereby causing corrosion or bad breath.

[0045] Accordingly, the present invention aims to resolve the problems of bad breath and corrosion by installing a packing (300) on the prosthesis among the materials constituting the implant structure to block the gap at the joint between the abutment (100) and the prosthesis.

[0046]

[0047] The core technology of the implant structure of the present invention is that when the abutment (100) and the prosthesis (200) are combined, a ring groove (1) is formed in a recessed portion (130) where the prosthesis is seated, and a packing (300) is pre-installed in the ring groove of the abutment and fixed therein, after which the prosthesis is combined with the abutment, and the packing installed on the prosthesis intervenes in the ring groove of the abutment so that the mutual contact surface is sealed, thereby contributing to preventing the penetration of foreign substances.

[0048] In particular, this series of procedures is characterized by being performed without cementation, which maximizes both convenience and efficiency.

[0049]

[0050] The implant structure of the present invention may be composed of: an abutment (100) inserted and fixed to a fixture implanted in the patient's gums; a prosthesis (200) seated on the top of the abutment; a screw that fixes the prosthesis to the abutment and fixture by being fastened to the fixture by vertically penetrating the center of the prosthesis; and a packing (300) that blocks the gap remaining between the abutment and the prosthesis and exerts a temporary restraining force.

[0051]

[0052] The above abutment (100) is vertically connected to a fixture implanted in the patient's gums to secure the prosthesis (200) to the fixture and to allow the prosthesis to be accurately placed in a designated position within the oral cavity.

[0053] This abutment (100) is formed with a set diameter and length and has a screw thread formed along its outer circumference, and is connected to the inside of the fixture as it is vertically inserted into the fixture implanted in the patient's alveolar bone; a body (120) that is formed to extend with a gradually expanding diameter from the top of the fastening part to expand the contact surface with the gums and induce stable support of the abutment; a seating part (130) that protrudes upward with a further expanded diameter from the top of the body, with the height of protrusion determined according to the patient's oral condition, and supports the seating and bottom of the prosthesis; and an insertion part (140) that protrudes upward with a set diameter from the top center of the seating part to induce the prosthesis to be connected in a one-touch manner.

[0054] The above insertion part (140) may include a chamfered portion (141) provided by cutting a plurality of sides so that the prosthesis does not rotate unintentionally and change direction while attached, and further includes an incision portion (142) that divides the upper part of the insertion part into a plurality of sections, so that when the prosthesis is attached, the incision portion is contracted or expanded, thereby facilitating attachment and exerting a predetermined restraining force after attachment.

[0055] In particular, the abutment (100) of the present invention is characterized by further comprising a ring groove (1) formed by being recessed to a set depth along the edge on the upper surface of the seating portion (130) to allow the insertion of a packing (300) exposed downward from the prosthesis (200).

[0056]

[0057] The above-described prosthesis (200) comprises: a body (210) having a cylindrical shape with a set diameter; a through hole (220) that allows the entry of a screw by vertically penetrating the body; and an insertion groove (230) formed as a polygonal depression on the bottom surface of the body to induce the insertion of the abutment (100). Here, the insertion groove (230) is formed as a polygonal groove corresponding to the chamfered portion (141) formed on the insertion portion (140) of the abutment (100), thereby preventing the prosthesis from unintentionally rotating when the abutment and the prosthesis (200) are fastened together.

[0058] In particular, the above prosthesis (200) may further include a projection (240) that protrudes downward along the bottom edge of the body (210) with a set diameter and is fitted into the ring groove (1) of the abutment while pressing the packing (300) that is seated on the seating portion (130) of the abutment (100).

[0059] As described above, the protrusion (240) is formed protruding from the bottom surface of the prosthesis (200) and takes the shape of a semicircle that corresponds one-to-one with the ring groove (1) of the abutment (100). Accordingly, when the abutment (100) and the prosthesis (200) are combined so that the bottom surface of the prosthesis comes into contact with the seating portion (130) of the abutment, the protrusion (240) of the prosthesis is accurately fitted into the ring groove (1) of the abutment, and the gripping force and sealing force are exerted by the packing pre-laminated on the seating portion of the abutment.

[0060]

[0061] The packing (300) proposed by the present invention may be composed of silicone or Teflon resin. However, it is not limited to these materials, and any flexible material suitable for dental use can be substituted without exception.

[0062] The above packing (300) may be formed in the shape of a ring to match the diameter of the seating portion (130) of the abutment (100). While the packing (300) is pre-laminated on the seating portion (130) of the abutment (100), it is pressed by the protrusion (240) of the prosthesis (200), causing a portion of it to enter the ring groove (1) and exert a sealing force.

[0063] Meanwhile, before the packing (300) is installed laminated on the abutment (100), a dental adhesive is applied to the seating portion (130) or ring groove (1) of the abutment and the bottom portion of the prosthesis (200), and the packing can be fixed to the abutment through the applied dental adhesive. Additionally, since the prosthesis is also bonded to the packing, the abutment and the prosthesis can be temporarily integrated as a result. In this way, the abutment (100) and the prosthesis (200) exert a temporary restraining force on each other, and the abutment and prosthesis that are restrained on each other make it more convenient to connect with a fixture using a screw, thereby greatly contributing to reducing the operator's fatigue.

[0064]

[0065] As mentioned above, the implant structure of the present invention may be configured to include a separate screw to fasten the abutment (100) and the prosthesis (200) to the fixture. This screw vertically penetrates the through hole (220) of the prosthesis (200) and is exposed to the bottom of the prosthesis while supporting a portion of the interior of the prosthesis. As the portion of the screw exposed to the bottom of the prosthesis is fastened to the abutment (100), a strong restraining force is exerted between the abutment and the prosthesis, resulting in them becoming one.

[0066] The above screw may be configured to include: a screw portion that is formed with a set diameter and length and has a screw thread formed along the outer circumference, and is fastened to an abutment (100) while vertically penetrating and partially supporting the through hole (220) of the prosthesis (200); a mounting portion that is formed to extend from the top of the screw portion with a gradually expanded diameter and is seated in the internal space of the prosthesis; an extension portion that extends vertically from the top of the seating portion and supports the inner diameter of the prosthesis; and a fastening guide hole formed in a polygonal shape at the center of the top of the extension portion and recessed to a set depth to allow insertion of a hex driver.

[0067]

[0068] Meanwhile, such implant structures can be implanted in a patient through the following process. This is carried out through a work process as shown in the flowchart of Fig. 5, and a detailed explanation thereof is as follows.

[0069] The implant installation method using the implant structure proposed by the present invention comprises: a fixture implantation step (S10) of implanting a fixture in the oral cavity of a patient; an abutment fastening step (S20) of connecting an abutment (100) to the fixture; a packing installation step (S30) of applying dental adhesive to the seating portion (130) of the abutment (100) and then seating and temporarily fixing a packing (300); and a prosthesis coupling step (S40) of connecting a prosthesis (200) to the insertion portion (140) of the abutment, wherein the packing is pressed by the protrusion of the prosthesis and fitted and pressed into the ring groove, thereby blocking the gap between the seating portion of the abutment and the bottom surface of the prosthesis through the packing.

[0070] As described above, a packing (300) is interposed between the abutment (100) and the prosthesis (200), and a temporary or permanent restraining force is exerted by a dental bond applied to the ring groove of the abutment, the surface of the packing, or the protrusion of the prosthesis, thereby maintaining a certain degree of bonding force between the abutment and the prosthesis without the need for a separate screw. Therefore, the practitioner can more conveniently install the prosthesis on the abutment coupled to the fixture in the patient's oral cavity.

[0071] Consequently, the present invention may comprise an abutment (100) vertically coupled to a fixture implanted in the patient's gums; a prosthesis (200) coupled to the abutment to replace a lost tooth; and a packing (300) interposed between the abutment and the prosthesis to seal the gap between the abutment and the prosthesis.

[0072] In particular, the abutment (100) comprises: a fastening part (110) formed with a set diameter and length and having a screw thread formed along the outer circumference, which is inserted vertically into a fixture implanted in the patient's alveolar bone and is secured inside the fixture; a body (120) which is formed to extend with a gradually expanding diameter from the top of the fastening part to expand the contact surface with the gums and induce stable support of the abutment; a seating part (130) which protrudes upward with a further expanded diameter from the top of the body, the height of protrusion determined according to the patient's oral condition, and contributes to the sequential seating and support of the packing (300) and the prosthesis (200); an insertion part (140) which protrudes upward with a set diameter from the top center of the seating part to induce fastening of the prosthesis in a one-touch manner; and a ring groove (1) which is formed by being recessed to a set depth along the edge of the upper surface of the seating part to allow the intervention of a projection (240) protruding downward from the prosthesis (200), and the prosthesis (200) The packing (300) is characterized by comprising: a body (210) having a shape that artificially restores a natural tooth; a through hole (220) that allows a screw to enter by vertically penetrating the body; an insertion groove (230) formed in a polygonal depression on the bottom surface of the body to induce the insertion of an abutment (100); and a projection (240) that protrudes downward along the edge of the bottom surface of the body in the form of a ring corresponding one-to-one with the ring groove (1) of the abutment and is fitted into the ring groove when combined with the abutment. The packing (300) is characterized by the fact that the set portion is pressed by the projection of the prosthesis that enters through the insertion portion while the packing (300) is stacked on the seating portion of the abutment, and the portion pressed by the projection is pushed into the ring groove formed on the seating portion, thereby sealing the gap between the abutment and the prosthesis.

[0073] An implant structure formed by such a configuration is installed through the following steps: a fixture implantation step (S10) in which a fixture is implanted in the patient's oral cavity; an abutment fastening step (S20) in which an abutment (100) is installed in the patient's oral cavity via the fixture; a packing installation step (S30) in which a packing (300) is seated and temporarily fixed via a dental bond applied to the seating portion (130) of the abutment (100); and a prosthesis coupling step (S40) in which a prosthesis (200) is coupled to the insertion portion (140) of the abutment, and the gap between the seating portion of the abutment and the bottom surface of the prosthesis is blocked as the protrusion of the prosthesis presses against the packing and is fitted and adhered to the ring groove.

[0074] The implant structure of the present invention, configured as described above, prevents the penetration of various foreign substances and secretions generated during the chewing process because the packing completely blocks and seals the gap remaining at the joint between the abutment and the prosthesis. Consequently, problems such as bad breath and reduced lifespan of the implant structure can be actively resolved.

[0075]

[0076] The present invention described above has been explained with reference to an exemplary embodiment illustrated in the drawings, but this is merely illustrative, and it should be made clear to those skilled in the art that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be interpreted by the appended claims, and all technical ideas within an equivalent scope should be interpreted as being included within the scope of rights of the present invention.

[0077]

[0078] < Explanation of Symbols >

[0079] 100. Abutment 110. Fastening part

[0080] 120. Body 130. Seating part

[0081] 140. Insert 200. Prosthesis

[0082] 210. Body 220. Through hole

[0083] 230. Insertion groove 300. Packing

[0084] 1. Ring home

[0085] S10. Fixture implantation step S20. Abutment connection step

[0086] S30. Packing installation step S40. Prosthesis joining step

Claims

1. An implant structure comprising: an abutment (100) inserted and fixed into a fixture; a prosthesis (200) coupled to the abutment to replace a lost tooth; a screw that fixes the prosthesis to the abutment and the fixture by penetrating the center of the prosthesis vertically and fastening it to the fixture; and a packing (300) that blocks the gap remaining between the abutment and the prosthesis and exerts a temporary restraining force. The above abutment (100) comprises: a fastening part (110) formed with a set diameter and length and having a screw thread formed along the outer circumference so as to be inserted vertically into the fixture and secured inside the fixture; a body (120) formed to extend with a gradually expanding diameter from the top of the fastening part to expand the contact surface with the gums and thereby induce stable support of the abutment; a seating part (130) that protrudes upward with a further expanded diameter from the top of the body, the height of the protrusion determined according to the patient's oral condition, and contributes to the sequential seating and support of the packing (300) and the prosthesis (200); an insertion part (140) that protrudes upward with a set diameter from the top center of the seating part to induce fastening of the prosthesis in a one-touch manner; and a ring groove (1) formed by being recessed to a set depth along the edge of the upper surface of the seating part to allow the intervention of a projection (240) protruding downward from the prosthesis (200). The above-mentioned prosthesis (200) comprises: a body (210) having a shape that artificially restores a natural tooth; a through hole (220) that allows the entry of a screw by vertically penetrating the body; an insertion groove (230) formed by a polygonal depression on the bottom surface of the body to induce the insertion of an abutment (100); and a projection (240) that protrudes downward along the edge of the bottom surface of the body in the shape of a ring corresponding one-to-one with the ring groove (1) of the abutment and is fitted into the ring groove when combined with the abutment. The above packing (300) is interposed between the seating portion (130) of the abutment (100) and the bottom surface of the prosthesis (200) to first seal the gap, and as the set portion is pressed by the protrusion (240) of the prosthesis, the pressed portion is guided to be pushed into the ring groove (1) of the seating portion, thereby sealing the gap between the seating portion and the prosthesis again, characterized by a gap-sealing implant structure.

2. In Paragraph 1, The above packing (300) is formed by processing silicone or dental Teflon into a ring shape and is temporarily bonded to an abutment (100) via a dental bond applied to the surface of the packing or the ring groove (1), comprising a gap-sealing implant structure.

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