The structure of the dental implant is designed to prevent the upper structure of the implant from collapsing and to prevent the ablation screw from loosening.

Abstract

DEPCT68 This invention is about the dental implant structure to prevent the collapse of the upper structure. Dental implants for dentistry and preventing the loosening of dental screw posts, to explain clearly, are what... Regarding the implant structure for preventing the collapse of the upper implant structure. For dental use and to prevent loosening of dental post screws, it can prevent the inside of the dental post from becoming loose. Distortion occurs even during repeated chewing by securing the tooth pin to the screw joint without exception. space This invention can prevent the inside of the tooth post from becoming distorted, even with repeated chewing. This is because the tooth-like post and the inside of each tooth-like post are constructed in a slender, tapered shape, and the screw portion is secured. The denture was secured without leaving any gaps between the two parts when the fixing screw was inserted into the dental post, and it remained effective. To reduce the loosening of retaining screws even under repeated chewing, which occurs due to the tooth abutment and the inner surface of the abutment. Each tooth is constructed in an elongated, slender shape;

Description

Dental implant structure for preventing subsidence of dental implant superstructure and abutment screw loosening

[0001] The present invention relates to a dental implant structure for preventing subsidence of a dental implant upper structure and for preventing loosening of an abutment screw, and more specifically, to a dental implant structure for preventing subsidence of a dental implant upper structure and for preventing loosening of an abutment screw, which can prevent the inside of an abutment from being crushed even during repeated chewing by ensuring that an abutment and a connecting screw are fastened without a gap when fastened.

[0002] An implant is composed of a prosthesis (crown) that functions as a tooth, an abutment that connects the artificial tooth root and crown, and an artificial tooth root (fixture) that functions as the tooth root.

[0003] The artificial tooth root and the abutment, which serve to fully support the implant, are usually connected in a screw form so that they can be firmly connected to each other.

[0004] However, when the abutment screw and the abutment are combined, a gap occurs between the two due to two structural problems.

[0005] Due to this gap, when repetitive chewing occurs, the gap between the abutment screw and the abutment causes the abutment to become inwardly distorted and sink downward, resulting in the abutment screw loosening. If repetitive chewing occurs after the abutment screw has loosened, the abutment screw may fracture, requiring replacement of the entire implant.

[0006] The purpose of the present invention is to prevent the inside of the abutment from being distorted even during repeated chewing by forming the abutment and the inside of the abutment in a tapered shape, and when the connecting screw part is connected to the abutment, the connecting screw part is connected without a gap between the two.

[0007] Additionally, the purpose is to minimize the phenomenon of the connecting screw loosening even during repeated chewing by forming the abutment and the inside of the abutment in a tapered shape.

[0008] In order to solve the above problem, the present invention comprises a fixture (100) having an outer circumferential surface formed in a screw thread shape and an abutment (200) to be fastened to the receiving groove (110) of the fixture (100), and a connecting screw portion (300) formed to penetrate the abutment (200) and to be fastened by being received at the lower end in the receiving groove (110) of the fixture (100), and the abutment (200) includes a through hole (210) having a through hole of a predetermined size formed so that the connecting screw portion (300) passes through and is fastened, and one side of the through hole (210) includes a first tapered portion (212) formed such that the diameter decreases in the direction from the first through hole (211) toward the second through hole (213), and A tooth implant structure is provided, characterized in that one side of a connecting screw portion (300) is formed to include a second tapered portion (310) whose diameter becomes narrower from the top to the bottom.

[0009] The present invention prevents the inside of the abutment from being distorted even when repeated chewing occurs because the abutment and the inside of the abutment are each formed in a tapered shape, and when the connecting screw is fastened to the abutment, the connecting screw is fastened without a gap between the two, and also has the effect of minimizing the phenomenon of the connecting screw becoming loose even when repeated chewing occurs because the abutment and the inside of the abutment are each formed in a tapered shape.

[0010] Figure 1 is a drawing showing the overall appearance of the implant of the present invention.

[0011] Figure 2 is an exploded view of Figure 1.

[0012] Fig. 3 is a cross-sectional view of the implant of the present invention, showing a crown included on the upper portion.

[0013] Figure 4 is a drawing showing the appearance of the abutment and the coupling screw portion of the present invention being combined.

[0014] Figure 5 is a drawing of an abutment of the present invention.

[0015] Figure 6 is a drawing of a coupling screw portion of the present invention.

[0016] Figure 7 is a drawing of a custom abutment and a connecting screw portion of the present invention.

[0017] Fig. 8 is a cross-sectional view of the custom abutment and the connecting screw portion of the present invention.

[0018] Figure 9 is a drawing of a custom abutment of the present invention.

[0019] Fig. 10 is a cross-sectional view of a custom abutment of the present invention.

[0020] Fig. 11 is a drawing showing a state in which the coupling screw portion of the present invention is fastened to an angle abutment.

[0021] Figure 12 is a drawing showing the angle abutment and the connecting screw part separated.

[0022] Figure 13 is a drawing showing the interior projected when the angle abutment and the connecting screw are combined.

[0023] Fig. 14 is a drawing showing a state in which the coupling screw part of the present invention is fastened to an internal abutment.

[0024] Figure 15 is a drawing showing the internal abutment and the connecting screw part separated.

[0025] Figure 16 is a drawing showing the interior projected with the internal abutment and the connecting screw portion combined.

[0026] As the best form for carrying out the invention,

[0027] A fixture (100) having an outer surface formed in a screw thread shape and having a receiving groove (110) formed to receive an abutment (200) and a connecting screw portion (300), an abutment (200) to be fastened to the receiving groove (110) of the fixture (100), and a connecting screw portion (300) formed to penetrate and be fastened to the through hole (210) of the abutment (200) and have a lower end formed to be received and fastened to the receiving groove (110) of the fixture (100), wherein the receiving groove (110) has one side formed in a screw thread and is formed in a shape corresponding to the thread of the connecting screw portion (320) so that the connecting screw portion (320) of the connecting screw portion (300) is received and fastened, and the abutment (200) has a through hole (210) formed with a through hole of a predetermined size so that the connecting screw portion (300) passes through and is fastened, It includes a first cutting surface (220) formed by cutting on one side of the outer surface of the abutment (200), and a fastening portion (230) formed in a polygonal shape to prevent rotation when fastened to the fixture (100) and formed on one side of the lower portion of the abutment (200), and the through hole (210) includes a first through hole (211) formed to have a size sufficient for a coupling screw portion (300) to pass through as a through hole of a predetermined length, and one side of the through hole (210) includes a first tapered portion (212) formed in a tapered shape with a diameter decreasing in a direction from the first through hole (211) toward the second through hole (213), and a second through hole (213) formed to be connected to the lower end of the first tapered portion (212) and having a predetermined length but having the same diameter as the lower end diameter of the first tapered portion (212), and When the coupling screw portion (300) is fastened to the abutment (200), the first tapered portion (212) and the second tapered portion (310) are formed to have corresponding sizes so that the second tapered portion (310) of the coupling screw portion (300) is fitted into the first tapered portion (212) of the abutment (200), and the first tapered portion (212) is formed at least at one of the positions of being inserted into the gum or being protruded by a predetermined length after being inserted into the gum.The above-mentioned coupling screw portion (300) includes a second tapered portion (310) formed so that one side of the coupling screw portion (300) becomes narrower in diameter from the top to the bottom, a fastening screw portion (320) formed with a thread to be coupled to the receiving groove (110) of the fixture (100), and a mechanism fastening groove (330) formed at the top with a groove of a predetermined size formed so that a turning mechanism is coupled to fasten the coupling screw portion (300) to the abutment (200), but formed so as to have a diameter smaller than the second through hole (213) of the abutment (200), a line segment l1 drawn along the diameter of the upper end of the first tapered portion (212), a line segment l2 formed perpendicular to l1 by extending from one end point of the upper end of the first tapered portion (212), and a point k formed when l1 and l2 meet, A tooth implant structure is proposed, characterized in that the value of the angle n formed by the line segment l2, the point k, and the line segment l3, which is formed by extending from the top to the bottom of the first tapered portion (212) through the point k, is 8 to 15 degrees (°).

[0028] Terms or words used in this specification and claims should not be interpreted as limited to their usual or dictionary meanings, but should be interpreted as meanings and concepts that conform to the technical idea of ​​the present invention, based on the principle that the inventor can appropriately define the concept of the term to explain his or her invention in the best possible way.

[0029] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0030]

[0031] The present invention relates to a dental implant structure, and more specifically, to an implant structure that prevents the inside of an abutment from being crushed even during repeated chewing by ensuring that an abutment and a connecting screw portion are connected without a gap when connected.

[0032]

[0033] Fig. 1 is a drawing showing the overall appearance of the implant of the present invention, and Fig. 2 is an exploded view of Fig. 1. Referring to this, the implant structure of the present invention is configured to include a fixture (100), an abutment (200), and a connecting screw portion (300).

[0034]

[0035] Each component is described in detail as follows:

[0036]

[0037] The fixture (100) has a receiving groove (110) formed to receive the abutment (200) and the connecting screw portion (300), and the outer surface is formed in a screw thread shape.

[0038] The above-mentioned receiving groove (110) is formed with a screw thread on one side, and is formed in a shape corresponding to the screw thread of the fastening screw portion (320) so that the fastening screw portion (320) of the coupling screw portion (300) is received and coupled.

[0039]

[0040] Fig. 3 is a cross-sectional view of the implant of the present invention, showing a crown included on the upper portion.

[0041] Figure 4 is a drawing showing the appearance of the abutment and the coupling screw portion of the present invention being combined.

[0042] Fig. 5 is about the abutment of the present invention.

[0043]

[0044] Referring to FIGS. 1 to 5, the abutment (200) is intended to be fastened to the receiving groove (110) of the fixture (100).

[0045]

[0046] The above abutment (200) is configured to include a through hole (210), a first cutting surface (220), and a fastening portion (230).

[0047]

[0048] The through hole (210) is formed with a predetermined size through which the connecting screw part (300) passes through and is fastened.

[0049] The above through hole (210) is composed of a first through hole (211), a first tapered portion (212), and a second through hole (213).

[0050] The first through hole (211) is a through hole of a predetermined length and is formed to have a size sufficient for the connecting screw portion (300) to pass through.

[0051]

[0052] The first taper portion (212) is positioned between the first through hole (211) and the second through hole (213), and is formed in a tapered shape with a diameter that decreases in the direction from the first through hole (211) toward the second through hole (213).

[0053]

[0054] The second tapered portion (310) of the coupling screw portion (300) is fitted into the first tapered portion (212) above, and when the abutment (200) and the coupling screw portion (300) are coupled, there is no empty space between the first tapered portion (212) of the abutment (200) and the second tapered portion (310) of the coupling screw portion (300).

[0055]

[0056] In addition, it is preferable that the first tapered portion (212) is formed at least to a position where it is inserted into the gum or to a position where it protrudes by a predetermined length after being inserted into the gum, and this can prevent the abutment (200) from being crushed during repeated chewing activities after implantation.

[0057]

[0058] Referring to Fig. 2(b), line segment l1 drawn along the diameter of the upper end of the first tapered portion (212),

[0059] A line segment l2 formed perpendicular to l1 and extending from one end point of the upper portion of the first tapered portion (212),

[0060] The point k formed by the intersection of l1 and l2,

[0061] In line segment l3 formed by extending from the top to the bottom of the first tapered portion (212) through point k,

[0062] The value of the angle n formed by line segment l2, point k, and line segment l3 is characterized by being 8 to 15 degrees (°), but preferably 12 degrees (°).

[0063]

[0064] The second through hole (213) is formed by being connected to the lower end of the first tapered portion (212) and is formed to have a predetermined length but has a diameter equal to the lower end diameter of the first tapered portion (212).

[0065] It becomes holy.

[0066]

[0067] The first cutting surface (220) is a surface formed by cutting on one outer side of the abutment (200).

[0068] The fastening portion (230) is formed on the lower side of the abutment (200) and is formed in a polygonal shape to prevent rotation when fastened to the fixture (100).

[0069]

[0070] Figure 6 is a drawing of a coupling screw portion (300) of the present invention.

[0071]

[0072] The connecting screw portion (300) is formed to penetrate the abutment (200) and be fastened, and the lower end is received and fastened in the receiving groove (110) of the fixture (100).

[0073]

[0074] The above-mentioned coupling screw portion (300) is configured to include a second taper portion (310), a fastening screw portion (320), and a mechanism fastening groove (330).

[0075]

[0076] The second tapered portion (310) is formed so that its diameter becomes narrower from the top to the bottom. The second tapered portion (310) is formed in a size and shape corresponding to the first tapered portion (212) of the abutment (200), and when the coupling screw portion (300) is fastened to the abutment (200), the second tapered portion (310) is received in the first tapered portion (212) and is coupled so that there is no empty space between the two.

[0077]

[0078] The fastening screw portion (320) is formed as a screw thread and is intended to be coupled to the receiving groove (110) of the fixture (100) as shown in FIG. 3.

[0079]

[0080] The mechanism fastening groove (330) is formed at the top, and is formed to allow a turning mechanism to be fastened by forming a groove of a predetermined size so that the connecting screw portion (300) is fastened to the abutment (200).

[0081]

[0082] The above-mentioned mechanism fastening groove (330) is formed to extend along the lower end of the second tapered portion (310) and is preferably formed to have a diameter smaller than the second through hole (213) of the abutment (200) so as to allow smooth penetration.

[0083]

[0084] The crown (400) is formed on top of the abutment (200).

[0085] Referring to Figure 3, it can be seen that a crown (400) is formed on the upper part of the abutment (200).

[0086]

[0087] Figure 7 is a drawing of a custom abutment and a connecting screw portion of the present invention.

[0088] Fig. 8 is a cross-sectional view of the custom abutment and the connecting screw portion of the present invention.

[0089] Figure 9 is a drawing of a custom abutment of the present invention.

[0090] Fig. 10 is a cross-sectional view of a custom abutment of the present invention.

[0091]

[0092] The custom abutment (500) has a first coupling screw fastening hole (510) formed on one side so that a coupling screw portion (300) can penetrate and be fastened.

[0093] The above custom abutment (500) can be used in place of the abutment (200), and a connecting screw (300) can be inserted into the custom abutment (500) to be fastened.

[0094] The first coupling screw fastening hole (510) is configured to include a third tapered portion (511) and a third through hole (512).

[0095] The third tapered portion (511) is formed so that its diameter becomes narrower from the top to the bottom, and is formed in a shape corresponding to the second tapered portion (310) of the coupling screw portion (300).

[0096]

[0097] That is, when the coupling screw portion (300) is fastened to the custom abutment (500), it is preferable that the third tapered portion (511) and the second tapered portion (310) be formed to have the same size so that the second tapered portion (310) of the coupling screw portion (300) is fitted into the third tapered portion (511) of the custom abutment (500).

[0098] The third through hole (512) is a hole formed by extending from the lower end of the third tapered portion (511) and is formed with the same diameter as the lower end diameter of the third tapered portion (511).

[0099]

[0100] In addition, it is preferable that the third through hole (512) be formed to have a larger diameter than the portion formed by extending along the lower end of the second tapered portion (310) of the coupling screw portion (300).

[0101]

[0102] Figures 11 to 13 are drawings showing the interior of an angled abutment (600) applied to apply the coupling screw portion (300) of the present invention, deformed into a shape corresponding to the coupling screw portion (300).

[0103]

[0104] Fig. 11 is a drawing showing a state in which the coupling screw portion of the present invention is fastened to an angled abutment.

[0105] Figure 12 is a drawing showing the angled abutment and the connecting screw part separated.

[0106] Figure 13 is a drawing showing the interior projected when the angled abutment and the connecting screw portion are combined.

[0107]

[0108] Referring to FIGS. 11 to 13, the angled abutment (600) is formed in a shape in which one upper side is slanted, and a second coupling screw fastening hole (610) is formed so that the coupling screw portion (300) is received and fastened.

[0109]

[0110] The above second coupling screw fastening hole (610) is configured to include a fourth tapered portion (611) and a fourth through hole (612).

[0111] The fourth tapered portion (611) is formed so that its diameter becomes narrower from the top to the bottom, and is formed in a shape corresponding to the second tapered portion (310) of the coupling screw portion (300).

[0112]

[0113] That is, when the coupling screw portion (300) is fastened to the angled abutment (600), it is preferable that the fourth tapered portion (611) and the second tapered portion (310) be formed to have the same size so that the second tapered portion (310) of the coupling screw portion (300) is fitted into the fourth tapered portion (611) of the angled abutment (600).

[0114] The fourth through hole (612) is a hole formed by extending from the lower end of the fourth tapered portion (611) and is formed with the same diameter as the lower end diameter of the fourth tapered portion (611).

[0115]

[0116] In addition, it is preferable that the fourth through hole (612) be formed to have a larger diameter than the portion formed by extending along the lower end of the second tapered portion (310) of the coupling screw portion (300).

[0117]

[0118] Figures 14 to 16 are drawings showing the interior of an internal abutment (700) applied to apply the coupling screw portion (300) of the present invention, which is transformed into a shape corresponding to the coupling screw portion (300).

[0119]

[0120] Fig. 14 is a drawing showing a state in which the coupling screw part of the present invention is fastened to an internal abutment.

[0121] Figure 15 is a drawing showing the internal abutment and the connecting screw part separated.

[0122] Figure 16 is a drawing showing the interior projected with the internal abutment and the connecting screw portion combined.

[0123]

[0124] Referring to FIGS. 14 to 16, the internal abutment (700) is intended to be coupled to the interior of the fixture, and a third coupling screw fastening hole (710) is formed to accommodate and fasten the coupling screw portion (300).

[0125]

[0126] The above third coupling screw fastening hole (710) is configured to include a fifth tapered portion (711) and a fifth through hole (712).

[0127] The fifth tapered portion (711) is formed so that its diameter becomes narrower from the top to the bottom, and is formed in a shape corresponding to the second tapered portion (310) of the coupling screw portion (300).

[0128]

[0129] That is, when the coupling screw portion (300) is fastened to the internal abutment (700), it is preferable that the fifth tapered portion (711) and the second tapered portion (310) be formed to have the same size so that the second tapered portion (310) of the coupling screw portion (300) is fitted into the fifth tapered portion (711) of the internal abutment (700).

[0130] The fifth through hole (712) is a hole formed by extending from the lower end of the fifth tapered portion (711) and is formed with the same diameter as the lower end diameter of the fifth tapered portion (711).

[0131]

[0132] In addition, it is preferable that the fifth through hole (712) be formed to have a larger diameter than the portion formed by extending along the lower end of the second tapered portion (310) of the coupling screw portion (300).

[0133]

[0134] In this way, the present invention can of course change the internal structure of various other abutments into a structure to which the connecting screw part (300) can be fastened.

[0135]

[0136] The embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention. Therefore, it should be understood that there may be various equivalents and modified examples that can replace them.

[0137] The present invention relates to a dental implant structure for preventing the sinking of a dental implant superstructure and the loosening of an abutment screw, and more specifically, to a groundbreaking technological improvement that can prevent the inside of the abutment from being crushed even during repeated chewing by ensuring that the abutment and the connecting screw are fastened without a gap when fastened.

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