KR102620163B1 - Support post detachable abutment for implants with improved load distribution and prosthesis bonding - Google Patents

Abstract

Compared to existing abutments, this technology can effectively prevent the rotation and removal of the prosthesis and the screw for fixing the prosthesis, and makes it very easy to process the internal screw insertion space of the prosthesis, while also ensuring very stable distribution of load. provides. A support post detachable abutment for implants with improved load dispersion force and prosthesis bonding force according to an embodiment of the present invention includes a first cross section at the top and a second cross section at the bottom of the first cross section having a different diameter from the diameter of the first cross section. A body portion having a cross-section and a first hollow portion in the center into which a prosthesis screw is inserted; a screw installation portion that is integrally formed while extending downward from the body portion and is inserted through a screw connection into a fixture fixed to the alveolar bone; and an insertion portion inserted into the first hollow portion and inserted into the body portion, which is concentric with the first hollow portion and has a second hollow portion into which a prosthetic screw can be inserted, extending upward from the upper portion of the insertion portion, and having a central portion. A post portion is made up of a plurality of support posts formed in a circumferential direction along the center of the second hollow portion so that the second hollow portion extends, and is installed to be capable of being coupled to and separated from the body portion through the first hollow portion; but includes a support forming the post portion. An inclined portion is formed to obliquely connect the uppermost side and the upper surface of the post, and the planar shape of the outermost surface of the support posts is characterized by some straight portions that are not circular.

Description

Support post detachable abutment for implants with improved load distribution and prosthesis bonding {SUPPORT POST DETACHABLE ABUTMENT FOR IMPLANTS WITH IMPROVED LOAD DISTRIBUTION AND PROSTHESIS BONDING}

The present invention relates to a separable abutment that is separated into an upper abutment and a lower abutment among abutments that are installed to fix the alveolar bone fixture and prosthesis to each other during implant surgery. Specifically, the present invention relates to a separate abutment that is divided into an upper abutment and a lower abutment. Compared to abutments, it is possible to effectively prevent the rotation and removal of prosthetics and screws for fixing prosthetics, and it is very easy to process the internal screw insertion space of the prosthesis, and at the same time, it is about a technology that allows the distribution of load to be very stable. will be.

Implant surgery generally refers to a procedure in which artificial teeth are transplanted into the alveolar bone. To replace the lost tooth root, a tooth root made of titanium, which is not rejected by the human body, is planted in the alveolar bone where the tooth has fallen out, and an artificial tooth is fixed to restore the function of the tooth.

Unlike general prosthetics and dentures, implants do not damage damaged tooth tissue and prevent the risk of cavities, so they are used as an efficient method of tooth reconstruction through semi-permanent use. In general, an implant procedure performed at a dentist's office involves planting an implant in the alveolar bone, connecting an abutment to the implant, and installing an artificial tooth.

At this time, a fixture is fixed to the alveolar bone, an abutment on which the prosthesis is placed is installed and fixed, and then a prosthesis, that is, an artificial tooth, is fixed to the abutment of the abutment to complete the artificial tooth.

At this time, the prosthesis and abutment are usually fixed by a prosthetic screw. After the prosthetic screw is fixed to the abutment, if a load is applied to the prosthesis by an action such as chewing food, the prosthetic screw is loosened and Problems arise where the screw and the prosthesis itself are removed from the butt.

In addition, as the procedure is performed by placing the prosthesis on a straight abutment, if the load on the prosthesis is large, the load is applied on the abutment and the prosthesis settles or moves toward the alveolar bone, causing pain in the alveolar bone. Damage to the shape of the implant may occur.

As a prior art for existing abutments, such as Korean Patent No. 10-1966407, the angle between the upper and lower abutments can be adjusted, allowing the abutment to be placed at various placement angles. We are presenting a technology that allows this.

However, these technologies have the advantage of being able to adjust the installation angle, but the prosthesis may be rotated or removed. To prevent this, other existing technologies process the surface on which the prosthesis is placed in a non-circular shape. In this case, the load is not distributed evenly, causing pain to the patient or making it difficult to maintain.

In addition, when forming a hollow portion, which is the internal screw insertion space of a prosthesis, there are cases where the diameter of the central part of the prosthesis must be made large. In this case, due to the nature of the milling device, when cutting the diameter of the center rather than the outside to a large diameter, , it is inevitable that precise cutting will not be performed, and as a result, a space where shaking occurs between the prosthesis and the abutment is created, making stable attachment between the prosthesis and the abutment impossible.

Accordingly, the present invention provides a structure that can very stably distribute the load of the prosthesis in a detachable abutment installed for an implant procedure, while also reliably preventing the prosthetic screw and the prosthesis from being rotated or removed from the abutment. The purpose is to provide a technology that reduces damage to the implant structure caused by a prosthesis and pain inflicted on the alveolar bone.

Another purpose of the present invention is to provide a technology that can effectively solve the problem of difficulty in processing prosthesis due to the upper structure of the abutment when processing prosthesis.

In order to achieve the above-described object, a support post detachable abutment for implants with improved load distribution force and prosthesis bonding force according to an embodiment of the present invention has a first cross section at the top and a first cross section at the bottom of the first cross section. A body portion having a second cross-section with a diameter different from that of the body and having a first hollow portion in the center into which a prosthesis screw is inserted; a screw installation portion that is integrally formed while extending downward from the body portion and is inserted through a screw connection into a fixture fixed to the alveolar bone; and an insertion part inserted into the first hollow part and inserted into the body part, and having a second hollow part concentric with the first hollow part into which the prosthesis screw can be inserted, and an upper part from the insertion part at the top of the insertion part. extending to, the center of which is made up of a plurality of support posts formed in a circumferential direction along the center of the second hollow portion so that the second hollow portion extends; a post portion installed to be capable of being coupled to and separated from the body portion through the first hollow portion; Including, wherein an inclined portion is formed to obliquely connect the upper surface and the side of the uppermost side of the support post forming the post portion, and the planar shape of the outermost surface of the support posts is such that some straight portions are not circular. It is characterized by

Preferably, the first hollow part is configured to have a locking part that limits the insertion height of the insertion part, and the interface between the insertion part and the support post is formed with a circumferential rib that is caught on the upper surface of the body part.

The maximum outer diameter of the support post is configured to be smaller than the diameter of the first cross section, so that the support post is located inside the first cross section, so that a step is formed between the support post and the first cross section. It is desirable to do so.

The post portion is formed so that the diameter of the area formed by the inner surface of the support post among the second hollow portions is smaller than the outer diameter of the main body of the prosthesis screw, and the height of the second hollow portion is such that, when installing the prosthesis screw, the prosthesis screw head is set to a height so that it is spaced apart from the top of the uppermost surface of the support post, thereby preventing the prosthesis screw from being removed from the body portion by applying central pressure to the prosthesis screw in a state in which the prosthesis screw is mounted, The prosthesis is removed from the body due to an external force that causes the support post to be moved away from the center by the body of the prosthesis screw according to the installation of the prosthesis screw, and the uppermost surface of the support post and the head of the prosthesis screw are caught. It is desirable to prevent this.

The diameter of the second cross section is preferably set to be larger than the diameter of the first cross section.

An inclined surface is formed between the first cross-section and the second cross-section, connecting the first cross-section and the second cross-section so that the diameter gradually widens from the outer circumference of the first cross-section to one circumference of the second cross-section. It is also possible to become

It is preferable that the support posts consist of an even number.

According to the present invention, the load in various directions applied from the prosthesis is evenly distributed throughout the abutment due to the respective steps between the first end face, the second end face, and the upper support post and the slope formed by the first end face and the second end face. dispersed. At this time, since the rotation of the prosthesis is prevented by the cross-sectional shape of the support post, it becomes possible to configure the cross-section of the abutment body to be completely circular, making it possible to evenly withstand the load applied from the prosthesis from all directions. This has the effect of reducing damage to the implant structure caused by the prosthesis and pain inflicted on the alveolar bone.

In addition, due to the shape of the support post constituting the upper post and the structure when installed with the prosthesis screw, compared to existing technology, the support post and screw head simultaneously apply external force to the prosthesis and increase the bonding force, thereby increasing the bonding force of the prosthesis. Rotation is prevented as described above and at the same time, removal of the prosthesis and screw is completely prevented, which has the effect of enabling a very stable implant procedure.

In addition, according to the structure when installing the support post and the prosthesis screw as described above, in the milling process for manufacturing the hollow part of the prosthesis, the diameter of the center is formed to be the smallest, so the hollow part of the prosthesis is also determined by the characteristics of the milling device. Precise manufacturing of the part becomes possible, making it possible to ensure very precise contact between the prosthesis and the abutment, thereby maximizing the effect of preventing shaking through stable and precise combination of the prosthesis and the abutment.

Figure 1 is a side view and a cross-sectional view illustrating the structure during assembly of a support post detachable abutment for an implant with improved load distribution force and prosthesis bonding force according to an embodiment of the present invention.
Figure 2 is a side view and a side view illustrating the structure when separated of a detachable abutment for an implant support post with improved load distribution force and prosthesis bonding force according to an embodiment of the present invention.
Figure 3 is a plan view of a support post detachable abutment for implants with improved load distribution force and prosthesis bonding force according to an embodiment of the present invention.
Figure 4 is a diagram illustrating structural features when a prosthesis screw is inserted and installed into an abutment according to an embodiment of the present invention.
Figure 5 is a partial side cross-sectional view for explaining the shape of a hollow portion of a prosthesis according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS Various embodiments and/or aspects are now disclosed with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth to facilitate a general understanding of one or more aspects. However, it will also be appreciated by those skilled in the art that this aspect(s) may be practiced without these specific details. The following description and accompanying drawings set forth in detail certain example aspects of one or more aspects. However, these aspects are illustrative and some of the various methods in the principles of the various aspects may be utilized, and the written description is intended to encompass all such aspects and their equivalents.

As used herein, “embodiment,” “example,” “aspect,” “example,” etc. may not be construed to mean that any aspect or design described is better or advantageous than other aspects or designs. .

Additionally, the terms "comprise" and/or "comprising" mean that the feature and/or element is present, but exclude the presence or addition of one or more other features, elements and/or groups thereof. It should be understood as not doing so.

Additionally, terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be referred to as a second component, and similarly, the second component may be referred to as a first component without departing from the scope of the present invention. The term and/or includes any of a plurality of related stated items or a combination of a plurality of related stated items.

In addition, in the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. It has the same meaning. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless clearly defined in the embodiments of the present invention, have an ideal or excessively formal meaning. It is not interpreted as

Meanwhile, in the following description, some of the elements depicted in the drawings are omitted or excessively enlarged or reduced in order to explain the function of each element of the present invention, but the relevant drawings do not explain the technical features and rights of the present invention. It would be natural to understand that the scope is not limited.

1 is a side view and a cross-sectional view illustrating the structure during assembly of a support post detachable abutment for implants with improved load distribution force and prosthesis bonding force according to an embodiment of the present invention, and FIG. 2 is a side cross-sectional view illustrating an embodiment of the present invention. A side view and side cut-out view for explaining the structure of the detachable abutment support post for an implant with improved load distribution force and prosthesis bonding force according to an embodiment of the present invention. Figure 3 is an implant with improved load dispersion force and prosthesis bonding force according to an embodiment of the present invention. A plan view of a support post detachable abutment, FIG. 4 is a view illustrating structural features when a prosthesis screw is inserted and installed into an abutment according to an embodiment of the present invention, and FIG. 5 is an embodiment of the present invention. Some side cross-sectional views to explain the shape of the hollow part of the prosthesis according to the implementation of the example. In the following description, multiple drawings will be simultaneously referred to and described in order to explain components constituting one technical feature or invention.

When described with reference to the above-mentioned drawings, the support post detachable abutment for implants with improved load dispersion force and prosthesis coupling force according to an embodiment of the present invention (hereinafter referred to as 'abutment of the present invention') has a body portion. (10), it is characterized in that it includes a screw installation part (20) and a post part (30).

In the present invention, the abutment 1 is the most important element in the prosthetic stage of implant treatment. It is a structure that provides fixing force to the fixture while contacting the prosthesis, provides support and holding power for the prosthesis, and can be configured to withstand the functional load transmitted through the restoration, that is, the load applied to the prosthesis. In general, zirconia abutments may be preferred over titanium abutments when the final prosthesis is an all-ceramic restoration in the anterior region.

The abutment can also be manufactured as an integrated fixture and placed together with the fixture, but it is not usually used. In the separate type, a separate abutment is fastened to the fixture, the holding screw is adjusted to the torque value according to the manufacturer's specifications, the prosthesis is inserted into the upper part of the abutment, and then tightened with a screw (40) or cement. It is fixed as .

The separate method can accommodate a variety of implant angles and ensures control over aesthetic results, so it is used in a variety of ways. In other words, it provides important mobility during implant treatment.

There are a wide variety of methods that practitioners can use to fasten implants and abutments, usually taking into account requirements for strength, fatigue resistance, anti-rotation properties, and microleakage. Strength is a requirement for minimizing the load on the implant/abutment interface, meaning that the prosthesis and occlusion must be designed so that excessive forces are not applied.

Fatigue resistance requires that the fastening area be able to withstand progressive, localized, repetitive or fluid stresses. The anti-rotation feature is to prevent the movement of the prosthesis or the retaining screw from biting, and the micro nutul is a necessary requirement to limit the amount of bacterial infection between the abutment and the fixture head.

The abutment 1 of the present invention is a separate type in which the abutment 1 of the present invention is separated from the fixture as shown in Figures 1 (a) and 2 (a), and is coupled to the fixture while the screw installation portion 20 rotates. It means butment. In addition, the abutment 1 of the present invention refers to a separable abutment in which the lower abutment with the body portion 10 as the main structure and the upper abutment structure, referred to as the post portion 30, are separable. do.

First, the body portion 10 has a first cross-section 11 at the top and a second cross-section 12 formed at the bottom of the first cross-section 11 with a diameter different from that of the first cross-section 11. It refers to the structure that serves as the abutment of the abutment (1). In other words, it can be understood as a concept referring to the configuration of the main body that withstands the load from the prosthesis.

In the present invention, the body portion 10 is characterized by having a first cross section 11 and a second cross section 12. The cross sections 11 and 12 are characterized in that they are configured to have different cross sections as described above.

At this time, in order to achieve the purpose of the present invention to evenly distribute the load of the prosthesis installed while surrounding the post portion 30 and the body portion 10, as shown in FIG. 2, in the present invention, the second cross section 12 ) is preferably set to be larger than the diameter R3 of the first cross section 11 of the present invention.

In addition, the diameter R2 of the second cross-section 12 will be set to be larger than the outer diameter R1 of the plurality of support posts 32 forming the post portion 30, which will be described later, installed to be inserted deeply into the prosthesis. You can.

According to the above embodiment, between the first end face 11 and the second end face 12, there is a distance from the outer circumference line of the first end surface 11 to one circumference line of the second end surface 12, that is, the outermost edge line. The inclined surface 14 connecting the first end face 11 and the second end face 12 may be formed in a line heading toward a circumferential line located partially inside the line, with the diameter gradually widening.

The inclined surface 14 has the effect of increasing the sense of fitting of the prosthesis and at the same time preventing foreign substances from penetrating into the abutment 1 from the prosthesis. In addition, the above-described inclined surface 14 is located partially inside the outer circumference of the outermost edge of the second cross-section 12 and forms a partial plane formed by the contact line of the inclined surface 14 from the outermost circumference, so that the area is This allows the thickness of the prosthesis, for example, a ceramic prosthesis, to be thickened, which has the effect of preventing damage to the implant, such as broken margins.

Meanwhile, the screw installation portion 20 is formed as an integral piece extending downward from the body portion 10 and is inserted into a fixture fixed to the alveolar bone by screwing. As shown in FIG. 1, the diameter of the screw installation portion 20 is formed to be smaller than the diameter of the body portion 10, so that it can be stably inserted and coupled to the fixture.

For this purpose, an inclined surface 13 on the side of the installation portion whose diameter gradually decreases toward the screw insertion portion 20 may be formed as it moves toward the bottom of the body portion 10 . This will be understood as a configuration for the entire abutment 1 of the present invention to be formed integrally. In addition, a thread 21 is formed for screw connection of the screw installation portion 20 to the fixture. In addition, the body portion 10 is as shown in FIGS. 1 (b) and 2 (b), which show the structures of the A-A section and B-B section of FIGS. 1 (a) and 2 (a). Likewise, the first hollow part C1 is formed, and the prosthesis screw 40 is inserted through the first hollow part C1. At the same time, the insertion portion 31 of the post portion 30, which will be described later, is inserted into the first hollow portion C1 to enable attachment of the post portion 30 and the body portion 10. At this time, the lower end of the first hollow part (C1) is in a shape into which the threaded part 43 of the prosthesis screw 40 is inserted, and the upper end is the main body 41 of the prosthetic screw 40 and the insertion part 31 of the post part 30. ) can be inserted into the cross-sectional shape.

As described above, the post portion 30 includes a plurality of support posts 32 and includes a second hollow portion C2 between the support posts 32. That is, the post part 30 is integrally formed while extending to the upper part of the first end surface 11 of the body part 10, and a second hollow part C2 into which the prosthesis screw 40 is inserted is formed at the center, , refers to a configuration consisting of a plurality of support posts 32 formed in the circumferential direction along the center of the second hollow portion C2.

In the present invention, the post part 30 is inserted into the first hollow part C1 and is inserted into the body part 10 in order to be inserted into the above-described first hollow part C1. It includes an insertion portion 31 having a second hollow portion C1 concentric with it, and the support post 32 extends upward from the insertion portion 31. At this time, the diameter of the second hollow portion C2 has the same diameter as the threaded portion 43 so that the threaded portion 43 of the prosthesis screw 40 can be inserted, and preferably, one of the threaded portions 43 without a thread is formed. It may be configured to have a diameter equal to the diameter in the area.

Meanwhile, the diameter R5 of the area where the support post 32 is formed in the second hollow portion C2 is preferably smaller than the diameter of the main body 41 of the prosthesis screw 40, which is described in the description of FIG. 4. This will be described later.

The support post 32 is formed in the height direction with respect to the second hollow part C2 to provide a path through which the prosthesis screw 40 is inserted, and extends in the same direction from the center of the second hollow part C2 in the circumferential direction. It is characterized by being formed radially within a radius.

At this time, in the present invention, as shown in Figures 3 and 4 (a), an inclined part 34 is obliquely connected between the uppermost side and the upper surface of the support post 32 forming the post part 30. The planar shape of the outermost surface of the support posts 32 is characterized by some straight portions 33 that are not circular.

When the abutment 1 is inserted into the fixture and the prosthesis 2 is installed on top, the flat cross-section of the abutment 1 is usually circular, so the prosthesis 2 can be rotated. In order to prevent this case, in some existing abutments, the above-described first cross-section 11 is formed to be partially straight rather than circular to prevent rotation. However, in this case, the body portion 10 itself, such as the first cross section 11 to which the load of the prosthesis 2 is applied, is implemented asymmetrically, and although rotation can be prevented, there is a problem in that the load is not evenly distributed. .

In order to completely prevent this case in the present invention, as described above, the planar shape of the outermost surface of the support posts 32 is implemented such that some straight portions 33 are not circular. As a result, the body portion 10 itself is configured in a circular shape so that the load is distributed completely evenly, thereby improving the support capacity of the prosthesis 2, and at the same time, rotation of the prosthesis 2 can be effectively prevented by the straight portion 33. . Meanwhile, the function of the inclined portion 34 will be described later.

As shown in FIG. 2, the support post 32 may be set so that its maximum outer diameter (R1) is smaller than the outer diameter (R2) of the second end surface 12, as described above. In addition, R1 may be set smaller than the outer diameter R3 of the first end face 11. In this case, the first cross section 11 may have a plane from the outermost diameter of the support post 32 to the outermost circumference of the first cross section 11.

This step constitutes an area formed between the support post 32 and the first end surface 11 by allowing the support post 32 to be located in an inner region of the first end surface 11. As described above, the step of the abutment effectively distributes the load applied to the prosthesis, preventing pain and damage to the implant structure itself due to pressure applied to the alveolar bone by the load of the prosthesis. In particular, rotation of the prosthesis 2 is prevented by the straight portion 33, so that the step between the first terminal 11 and the abutment is completely symmetrical, so that the above-described effect can be maximized.

Meanwhile, as shown in (a) and (b) of FIG. 2, in the present invention, the post portion 30 is attached to the body portion 10 along the first hollow portion C1 from the body portion 10 as described above. It can be configured to be installed or detached. At this time, in order to make the installation and separation more precise, as shown in Figures 2 (a) and (b), the insertion part 31 is inserted too deeply into the first hollow part C1. In order to prevent this, the area 15 with the largest diameter of the first hollow part C1 may be determined so that a locking part that limits the insertion height of the insertion part 31 is formed.

Meanwhile, at the interface between the insertion part 31 and the support post 32, a locking part is attached to the upper surface of the body part to limit deep insertion of the insertion part 31 into the first hollow part C1. It may be configured to form a circumferential rib 311. Through this, there is an effect that insertion, installation and separation between the post part 30 and the body part 10 can be performed very precisely.

Meanwhile, as shown in Figures 4 (a) and (b), the post part 30 has a diameter formed by the inner surface between the support posts 32, that is, the support post 32 in the second hollow part C2. ) may be formed so that the diameter (R5) of the area where the prosthesis screw 40 is formed is equal to or smaller than the outer diameter (R4) of the main body 41 of the prosthesis screw 40, as described above.

In this case, when the prosthesis screw 40 is inserted from the hollow part 3 formed in the prosthesis 2 along the hollow part C3, according to the relationship between the outer diameters R4 and R5, as shown in (b) of Figure 4 As shown, due to the contact between the outer diameter of the main body 41 of the prosthesis screw 40 and the support post 32, the support post 32 is pressured to move away from the center.

In addition, the height of the second hollow portion C2 is such that, as shown in (b) of FIG. 4, when the prosthesis screw 40 is completely installed, the head 42 of the prosthesis screw 40 is connected to the support post 32. It is characterized in that it is set at a height so that it is spaced at a certain height (h) above the top surface of the cells.

For this purpose, the height of the first hollow portion C1 is set from the bottom of the threaded portion 43 of the prosthetic screw 40 to the boundary point between the main body 41 and the threaded portion 43, that is, the point where the width of the prosthetic screw 40 is widened. It can be set as shown in (b) of FIG. 4.

In this case, due to the direction (F) of the pressure, pressure is generated toward the inner surface of the prosthesis screw 40, and pressure in the center direction is applied to the prosthesis screw 40 in a clip manner, causing the prosthesis screw 40 to be loosened. The phenomenon can be minimized. At the same time, a locking pressure is applied to the installed prosthesis 2, so that the prosthesis 2 is prevented from being removed by the support posts 32.

In particular, as described above, the head 42 is not completely inserted, and the above-mentioned inclined portion 34 is caused by the external force caused by the insertion of the main body 41 of the prosthesis screw 40, so that the support post 32 is When the prosthesis screw 40 is moved away from the center by an external force that causes the main body 41 of the prosthesis screw 40 to move away from the center, the installation plane as shown in (b) of FIG. 4 The angle can be set to be perpendicular to .

A wide variety of effects can be achieved by these embodiments of the present invention. That is, as shown in (b) of FIG. 4, the support post 32 moves away and holds the prosthesis 2 once, while the head 42 of the prosthesis screw 40 moves away from the center. As it protrudes, the prosthesis (2) is auxiliary held and it is possible to completely prevent the prosthesis (2) from being removed from the body portion (10) due to being caught.

Meanwhile, according to the angle setting of the inclined portion 34 of the support post 32 and the separation height (h) between the support post 32 and the prosthesis screw 40, the formation of the internal hollow portion 3 of the prosthesis is very difficult. Milling can be performed with an easy and stable structure.

That is, as shown in FIG. 5, according to the angle setting of the inclined portion 34 of the support post 32 and the separation height h between the support post 32 and the prosthesis screw 40, the hollow portion 3 ) The shape is widest at both ends of the prosthesis 2 and smallest at the center, that is, the spaced area. In this case, due to the characteristics of the milling device entering the inside, milling can be easily performed to the widest width on both ends of the prosthesis 2, and then milling can be performed to a smaller width in the center, that is, in the spaced area.

However, on the contrary, for example, when the head 42 is completely inserted into the support post 32, unlike the embodiment of FIG. 5, the width of the central area where the support post 32 is spread becomes wider than both ends. . In this case, it is very difficult to mill a narrow width at both ends and mill (cut) a wider width at the center, making precise machining for each width impossible, and the prosthesis 2 is not stably attached and must be removed. It either becomes unstable or shakes.

In the present invention, according to the separation height (h) between the support post 32 and the prosthesis screw 40, the prosthesis 2 is completely prevented from being removed from the body 10 and the hollow portion 3 is maintained at the same time. It can enable shape manufacturing very precisely and effectively.

Meanwhile, in order to ensure that the above-mentioned pressure is applied in a balanced manner, it is preferable that the support posts 32 are formed and configured in an even number.

As described above, although the embodiments have been described with limited examples and drawings, those skilled in the art will understand that various modifications and variations can be made from the above description. Terms such as “include,” “comprise,” or “have” described above mean that components that are not specifically stated to the contrary may be included, and therefore do not exclude other components, but rather include other components. It should be interpreted to include more. In addition, the scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

Claims (7)

A body portion having a first cross-section at the top, a second cross-section having a diameter different from the diameter of the first cross-section at the bottom of the first cross-section, and a first hollow portion in the center into which a prosthesis screw is inserted;
a screw installation portion that is integrally formed while extending downward from the body portion and is inserted through a screw connection into a fixture fixed to the alveolar bone; and
an insertion part that is inserted into the first hollow part and inserted into the body part, is concentric with the first hollow part, and has a second hollow part into which the prosthesis screw can be inserted, and an insertion part from the upper part of the insertion part extending to, the center of which is made up of a plurality of support posts formed in a circumferential direction along the center of the second hollow portion so that the second hollow portion extends; a post portion installed to be capable of being coupled to and separated from the body portion through the first hollow portion; Including,
An inclined portion is formed to obliquely connect the uppermost side and the upper surface of the support post forming the post portion, and the planar shape of the outermost surface of the support posts has some straight portions that are not circular,
Relative rotation of the support post and the alveolar bone is prevented by the planar shape of the outermost surface of the support posts, so that the cross-section of the body part is completely circular, thereby evenly distributing the load applied from the prosthesis in all directions. , to reinforce the bonding force between the support post and the alveolar bone,
The first hollow part is configured to form a locking part that limits the insertion height of the insertion part, and the first hollow part and the second hollow part are configured to have the same diameter, and the interface between the insertion part and the support post is the body. A support post detachable abutment for implants with improved load distribution and prosthesis binding force, characterized by a circumferential rib that is caught on the upper surface of the abutment.
delete According to paragraph 1,
The maximum outer diameter of the support post is configured to be smaller than the diameter of the first cross section, so that the support post is located inside the first cross section, so that a step is formed between the support post and the first cross section. A support post detachable abutment for implants with improved load distribution and prosthesis bonding ability.
According to paragraph 1,
The post section,
The diameter of the area formed by the inner surface of the support post among the second hollow parts is formed to be smaller than the outer diameter of the main body of the prosthesis screw, and the height of the second hollow part is such that when the prosthesis screw is installed, the prosthesis screw head supports the prosthesis screw. By being set at a height that is spaced apart from the top of the top surface of the post,
In a state in which the prosthesis screw is installed, pressure in the center direction is applied to the prosthesis screw to prevent the prosthesis screw from being removed from the body, and the support post is attached to the body of the prosthesis screw according to the installation of the prosthesis screw. Support for implants with improved load dispersion force and prosthesis bonding force, characterized in that it prevents the prosthesis from being removed from the body due to external force causing it to move away from the center and engagement between the top surface of the support post and the head of the prosthesis screw. Post detachable abutment.
According to paragraph 1,
A support post detachable abutment for implants with improved load dispersion force and prosthesis bonding force, characterized in that the diameter of the second cross section is set to be larger than the diameter of the first cross section.
According to clause 5,
An inclined surface is formed between the first cross-section and the second cross-section, connecting the first cross-section and the second cross-section so that the diameter gradually widens from the outer circumference of the first cross-section to one circumference of the second cross-section. A support post detachable abutment for implants with improved load distribution and prosthesis bonding ability.
According to paragraph 1,
A detachable support post abutment for implants with improved load distribution and prosthesis bonding force, characterized in that the support posts consist of an even number.