KR101026775B1 - abutment for implant - Google Patents

Abstract

The present invention is coupled to the upper side of the fixture to improve the correct prosthetic work and work efficiency, is formed on one side along the circumferential direction of the adhesive projection and the adhesive projection extending to the upper side of the connection to guide the coupling direction CAD / CAM dedicated landlords with guide fixings; And a custom abutment coupled to an upper side of the CAD / CAM exclusive abutment, the adhesive passage being formed by using CAD / CAM scan data on the outer shape of the adhesive protrusion so that the adhesive protrusion is inserted therein. Provide an abutment for the implant.

Implants, Abutments, CAD / CAM Systems

Description

Abutment for implant

The present invention relates to an implant abutment, and more particularly, has a function of induction to be combined in the intended direction to a custom abutment to the CAD / CAM dedicated abutment to be seated to produce a custom prosthesis using a CAD / CAM. It is about implant abutments.

In general, an implant may be used as a concept representing a dental procedure or in the same sense as a fixture, in which an artificial root fixture is implanted and adhered to an alveolar bone where natural teeth are lost, and a prosthsis to the fixture. Refers to the combination formed).

In addition, the implant is divided into a fixture made of titanium that is largely fixed to the alveolar bone and an artificial tooth instead of the natural tooth. The fixture and the artificial tooth are connected by an abutment and an abutment screw. do. That is, the abutment is fixed by the abutment screw on the fixture, and an artificial tooth having a coping and an appearance is coupled to the abutment.

Here, the abutment is provided with a combination of two abutment of the upper / lower side of different materials, the lower abutment is a portion of the projection is bonded to the upper portion of the titanium material by the CAD / CAM system, for convenience CAD / It is defined as a CAM dedicated abutment, the upper abutment means a prosthesis made of a ceramic material, and the inner structure formed by the CAD / CAM system is bonded to be closely bonded to the protrusion of the lower abutment, so it is defined as a customized abutment for convenience.

In other words, for the customized prosthesis of artificial teeth using CAD / CAM, the CAD / CAM abutment, which is a connection between the customized abutment and the fixture, is a circular cross section of the CAD / CAM abutment. .

However, the horizontal section of the CAD / CAM exclusive land column for the prosthetic fabrication using such CAD / CAM equipment is usually formed in a circular shape, so that the customized abutment using CAD / CAM can be placed in the intended direction on the CAD / CAM exclusive land column. There is a problem in that it requires additional work to compensate for this, hampering the accuracy of the prosthetic work and reducing work efficiency.

In addition, since the horizontal cross-section of the CAD / CAM exclusive abutment is formed in a circular shape, the coupling direction due to rotation is misaligned when combined with the customized abutment, thereby causing an inconsistent dental structure. There was a problem in that the weakening caused the side effects of the procedure.

The present invention implements the insertion guide function to be combined with the CAD / CAM dedicated abutment in the intended direction to produce a customized prosthesis using CAD / CAM, cement cementation of the custom abutment and CAD / CAM dedicated abutment It is a task to solve the problem of providing abutment that is coupled in the correct direction during the work and the working efficiency is increased.

The present invention is coupled to the upper side of the fixture in order to solve the above problems, is formed on one side along the circumferential direction of the adhesive protrusion and the adhesive protrusion extending to the upper side of the connection guide to guide the coupling direction CAD / CAM dedicated abutment provided additionally; And a custom abutment coupled to an upper side of the CAD / CAM exclusive abutment, the adhesive passage being formed by using CAD / CAM scan data on the outer shape of the adhesive protrusion so that the adhesive protrusion is inserted therein. Provide an abutment for the implant.

Here, the guide fixing part is formed integrally with the CAD / CAM dedicated abutment, it is preferable that the customized abutment is provided on the outer surface of the adhesive projection to be seated in contact with the CAD / CAM dedicated abutment. In addition, the guide fixing portion is preferably provided with a deletion portion that is deleted in cross section on the outer surface of the adhesive projection. Further, the guide fixing portion is preferably provided with a protrusion protruding in cross section on the outer surface of the adhesive projection. And, the guide fixing portion is preferably formed over the entire length of the adhesive projection portion so that the fixing force is reinforced. In addition, the guide fixing portion is preferably formed over a portion of the vertical length of the adhesive protrusion so that the introduction portion of the adhesive passage hole is fitted by rotation. Further, the guide fixing portion is preferably provided with a groove recessed on the upper edge of the adhesive projection.

The present invention provides the following effects through the problem solving means described above.

First, the guide fixing part is provided on one side of the scan area of the CAD / CAM exclusive abutment so that the combined positions of the customized abutment and the CAD / CAM exclusive abutment can be aligned, so that the customized abutment can be easily settled in the intended direction according to the dental structure of the subject. Can make accurate prosthetic work.

Second, as the guide fixing part is manufactured integrally with the CAD / CAM abutment, the production process for assembly is omitted, and the productivity is greatly improved by the process simplification. Accurate guides can improve work efficiency, as well as prevent side effects of the procedure, which can significantly improve the reliability of the procedure.

As the guide fixing part is formed integrally through the primary work of CAD / CAM exclusive abutment and casting process and the secondary work of CNC machining, the additional efficiency for selecting the abutment direction of the abutment is eliminated, which improves the work efficiency by simplifying the process. Productivity and economics can be improved.

Third, the guide fixing part is provided by the eraser is divided in cross section on the outer surface of the adhesive projection, there is an advantage that it is simply manufactured to further improve the ease of manufacture.

Fourth, the guide fixing portion is provided with a protrusion projecting in cross section on the outer surface of the adhesive projection of the circular cross-section, it is possible to significantly improve the stability of the coupling by preventing the rotation of the custom abutment after coupling.

Fifth, the guide fixing portion is provided with grooves separated on the upper edge of the adhesive projection, there is an advantage that the ease of fastening further improved by fitting the custom abutment while rotating freely to the adhesive projection.

Hereinafter, with reference to the accompanying drawings will be described in detail the implant abutment in accordance with a preferred embodiment of the present invention.

Here, the implant abutment refers to an abutment for connecting a prosthesis such as a fixture and an artificial tooth used in an implant procedure, wherein the abutment is a customized abutment which is a prosthesis and the CAD / CAM exclusive abutment. The notes are glued together.

That is, the implant procedure is provided with an abutment connecting the fixture and the artificial tooth in order to have an artificial tooth on the upper side of the fixture implanted in the alveolar bone, wherein the abutment is formed inside the inner side of the fixture. An artificial tooth including a coping and an exterior is provided on an upper side of the abutment by being screwed with an abutment screw to an engagement hole communicating with a coupling groove and fixed to the fixture.

At this time, the abutment is used by bonding the divided by the upper / lower abutment according to the material difference between the fixture and the artificial tooth, the CAD / CAM dedicated abutment of titanium material is used on the lower side, the CAD / CAM dedicated abutment on the upper side Attention A custom abutment of ceramic material is used which has an internal structure which is correspondingly formed by scanning the adhesive site with a CAD / CAM system.

In addition, according to the present invention, as the abutment is divided into an external connection method and an internal connection method according to the connection method with the fixture, the CAD / CAM dedicated rent holder may have two structures. Because it is applied, it can be applied to both external connection and internal connection.

On the other hand, Figure 1 is a schematic view showing the structure of the implant to which the implant abutment according to the first embodiment of the present invention, Figure 2a is a perspective view showing a CAD / CAM dedicated abutment according to the first embodiment of the present invention, Figure 2b is a side view showing the CAD / CAM dedicated abutment according to the first embodiment of the present invention.

As shown in Figure 1 and 2, the implant abutment 10, 100 according to the first embodiment of the present invention comprises a CAD / CAM dedicated abutment 100, a customized abutment (10).

In detail, the CAD / CAM dedicated column 100 is preferably made of a combined shape of a truncated cone and a cylindrical frame having a hollow inside, the CAD / CAM dedicated column 100 is connected to the upper portion of the fixture ( A guide fixing portion 130 coupled to the through 110 and formed on one side along the circumferential direction of the adhesive protrusion 120 and the adhesive protrusion 120 extending upward of the connecting portion 110 to guide the coupling direction is provided. It is provided.

That is, the CAD / CAM dedicated abutment 100 comprises a connecting portion 110, the adhesive projection 120 and the guide fixing portion 130.

Here, the connection portion 110 is preferably made of a truncated cone shape, is coupled to the upper side of the fixture 15, the margin portion 114 is provided on the outer upper end thereof.

In addition, the connection part 110 includes a fixture connection part 111, a fixture contact part 112, a gingival contact part 113, and a margin part 114, wherein the connection part 110 is a fixture 15. The fixture connection part 111 and the fixture contact part 112 may be selectively included according to a difference between an external connection method and an internal connection method according to the connection method.

That is, Figure 2 shows the CAD / CAM dedicated abutment 100 used in the internal connection method, Figure 5 is used in the external connection method, including the fixture connection portion 111 and the fixture contact portion 112. As shown in the CAD / CAM dedicated abutment 500 having a configuration of the connection portion 510 that does not, the difference between the internal connection method and the external connection method is depending on the presence or absence of the portion inserted into the lower fixture (15). .

In addition, the fixture connection portion 111 is used when inserted into and coupled to the fixture 15, and the fixture contact portion 112 refers to a portion that is contacted when inserted into the fixture 15. The gingiva contact portion 113 corresponds to an upper portion of the connection portion 110, and the fixture 15 is fixed to the jaw bone B in a shape in contact with the gingiva (gum, G) and supported by the alveolar bone (B). In addition, the margin part 114 is seated on the bottom edge of the customized abutment 10 to be described later as an upper surface of the upper edge portion of the connecting portion 110.

Thus, as shown in Figure 1, the fixture 15 is bonded to the alveolar bone (B), the implant connecting the artificial tooth consisting of the fixture 15, the inner tube (coping, 13) and the appearance (not shown) Since the abutment 10 and 100 are inserted or contacted on the upper side of the fixture 15 and joined by an abutment abutment screw (not shown), an implant which can be used semi-permanently is performed.

On the other hand, it is provided with an adhesive protrusion 120 extending to the upper side of the connecting portion 110, the adhesive protrusion 120 is a CAD / CAM in the interior of the custom abutment 10 is mounted on the bottom portion to the margin portion 114 It is inserted into and coupled to the adhesive passage hole (10a) formed by.

That is, the implant abutment (abutment, 10, 100) is firmly coupled to the fixture 15, the CAD / CAM dedicated abutment 100 of titanium material and the ceramic material to facilitate the processing of artificial teeth in accordance with the dental structure of the human body It is provided by bonding a custom abutment 10 of the, wherein, the outer surface of the adhesive projection 120 and the adhesive projection 120 by the CAD / CAM 3D scan data on the inside of the custom abutment (10) The adhesive passage hole 10a which is formed to correspond to the outer shape of the adhesive protrusion 120 is inserted in close contact with each other and then is fixedly bonded to each other.

Here, CAD / CAM refers to a computer aided design / computer aided manufacturing system, which is scanned using a 3D camera instead of the conventional engraving and casting method, and then milled to be controlled by a computer program. (Milling) A method of making a machine by deleting it.

Therefore, CAD / CAM dedicated abutment 100 of the present invention using a CAD / CAM equipment, the 3D model through a scan operation to make the data as a personalized abutment (10) and a custom inner tube (coping, 13), etc. It refers to the parts of the implant abutment (10, 100) used to make a customized prosthesis to fit.

In addition, the adhesive protrusion 120 is preferably formed integrally with the connecting portion 110, since it has a small size of the titanium material, it is manufactured by precision processing, etc., its manufacturing method is not limited.

On the other hand, there is a custom abutment 10 is coupled to the upper side of the CAD / CAM dedicated abutment 100, the custom abutment 10 is preferably made of a cap shape having a hollow, the custom abutment 10 is An adhesive passage hole 10a is formed by using CAD / CAM scan data on the outer shape of the adhesive protrusion 120 so that the adhesive protrusion 120 is precisely inserted therein.

Therefore, the shape of the adhesive passage hole (10a) is formed to correspond to the outer shape of the adhesive projection portion 120, the entrance hole (not shown) through which the above-mentioned abutment screw passes through the upper center portion of the adhesive passage hole (10a) Is formed.

Through this, the custom abutment 10 can be accurately seated on the CAD / CAM dedicated abutment (100).

On the other hand, the guide fixing part 130 is formed on one side along the circumferential direction of the CAD / CAM dedicated abutment 100, the guide fixing portion 130 is the custom abutment 10 and the CAD / CAM dedicated abutment ( Guide and fix the coupling position of 100).

That is, the guide fixing portion 130 is formed on one side along the circumferential direction of the adhesive protrusion 120, the guide fixing portion 130 is the adhesive protrusion 120 is set in the adhesive passage hole (10a) direction Guide it to be inserted and fix it.

On the other hand, the guide fixing part 130 is formed integrally with the CAD / CAM dedicated abutment, the custom abutment 10 is rotated in contact with the CAD / CAM dedicated abutment 100 and guided so that the adhesive projection ( 120 is preferably provided on the outer surface.

That is, the adhesive protrusion 120 is formed in a cylindrical rim shape while forming a passage hole 121 into which the abutment screw is inserted. The guide protrusions are formed on the outer surface or the top of the adhesive protrusion 120 along the circumferential direction. Form a government (130).

In addition, the guide fixing part 130 is preferably manufactured integrally with the CAD / CAM dedicated abutment 100 including the connecting portion 110 and the adhesive projection 120, such a pre-fabricated guide height The government 130 is reflected in the scan by the CAD / CAM is reflected to form a structure corresponding to the guide fixing part 130 at the time of the formation of the adhesive passage hole (10a) inside the custom abutment 10 will be.

Furthermore, the customized abutment 10 is guided and fitted by the guide fixing part 130 which is a reference for the rotation direction by contact rotation by being seated while wrapping the adhesive projection 120.

Here, the custom abutment 10 is fitted while being rotated to some extent in accordance with the formation position of the guide fixing portion 130 and then guided by the guide fixing portion 130 is fully fitted or the adhesive projection 120 Guided while rotating in contact with the upper end of the complete fit in a straight line to be coupled.

Therefore, when the guide fixing part 130 is coupled to the custom abutment 10 on the upper side of the adhesive projection 120, the adhesive projection 120 is guided to the adhesive passage hole (10a) to be coupled in the correct direction To be.

In addition, the guide fixing part 130 is primarily manufactured integrally with the CAD / CAM abutment 100, and secondly precisely processed by CNC, etc., so as to be combined or rotated by a cutting machine (bur). The additional work of forming cutaways and the like separately for the prevention is eliminated, enabling a quick and accurate prosthetic work.

Through this, the guide fixing part 130 is manufactured integrally with the CAD / CAM dedicated abutment 100, thereby eliminating the machining process for assembly, thereby significantly improving productivity by simplifying the process, and secondarily. By precision machining by CNC, etc., the work efficiency can be improved by a quick and accurate guide as well as the reliability of the procedure can be remarkably improved by preventing side effects of the procedure.

That is, the guide fixing part 130 is a custom abutment 10 processed by the CAD / CAM equipment to the CAD / CAM dedicated abutment 100 poetic to the work model during the scan operation without the reference for the additional direction of rotation Since the customized abutment 10 can be seated in the intended direction of the manufacturer, not only can the prosthetic work be more precisely, but also the work of forming an anti-rotation cross section using a cutting machine (bur), etc. is unnecessary. Can be improved.

On the other hand, the guide fixing part 130 has a structure corresponding to one side of the inner surface of the adhesive passage hole (10a) and the scan operation so as to align the coupling position of the custom abutment 10 and the adhesive protrusion 120. desirable.

Therefore, the guide fixing part 130 is integrally manufactured with the CAD / CAM abutment 100 and is provided with one side of an inner surface of the adhesive passage hole 10a corresponding to the CAD / CAM precisely. Complementary work on the combination of the abutments 10 and 100 is unnecessary, thereby simplifying the process and significantly improving work efficiency.

On the other hand, the guide fixing part 130 is equally spaced along the circumferential direction of the adhesive protrusion 120, preferably at least one is provided.

Here, the guide fixing part 130 guides the adhesive protrusion 120 to be inserted into the adhesive passage hole 10a in a setting direction, and the setting direction is dependent on the outer structure of the customized abutment 10. do.

That is, the custom abutment 10 is provided in various shapes according to the individual orthodontic structure, the guide fixing portion 130 is required to accurately combine the custom abutment 10 having such a variety of shapes, a quick procedure For the guide fixing part 130 is formed in a minimum position.

In addition, the guide fixing portion 130 is formed with a minimum size for fast coupling when the adhesive projection 120 is fixedly bonded to the adhesive passage hole (10a).

Accordingly, the guide fixing part 130 has a minimum size when the adhesive projection 120 is inserted into the adhesive passage hole 10a, when a guide criterion for any one of the front, rear, left, and right directions is necessary and has the same interval. It is advantageous to be formed in two places for quick coupling, and when it is necessary to guide the guideline for the four directions of front, rear, left and right it is advantageous to be formed in one place.

That is, the guide fixing part 130 is formed in two places at the same interval along the circumferential direction when the coupling criterion 130 is required in one direction, and is formed in one place when the coupling criterion in the plural directions is necessary. Do. Through this, the promptness and accuracy of the prosthetic operation are improved at the same time, thereby preventing side effects of weakening of the bonding force due to the mismatch of the dental structure after the implant procedure, and improving the working efficiency.

On the other hand, the guide fixing part 130 is preferably formed at least one or more outside of the adhesive protrusion 120 so that the shape of the passage hole 121 formed therein remains unchanged.

Here, the guide fixing part 130 is a guide so that the adhesive projection 120 of the CAD / CAM dedicated abutment 100 is bonded to the adhesive passage hole (10a) of the custom abutment 10 is coupled in the correct direction. It has a function to prevent the rotation by the circular cross-sectional structure of the adhesive protrusion 120 coupled to the function.

In addition, since the guide fixing part 130 is preferably formed on the outside of the guide protrusion 120 to serve as a guide and a fixed role without affecting the shape of the passage hole 121 formed inside the adhesive protrusion 120. Is formed on the outer surface or the top of the adhesive protrusion 120 is provided to maintain the shape of the passage hole 121.

Through this, since the guide fixing part 130 is provided on the outer surface or the upper end thereof without affecting the fastening function of the abutment, there is an advantage that can be applied to the existing CAD / CAM-only abutment 100 compatible with each other. have.

For example, forming a deletion portion having a cross section divided on the outer surface of the existing CAD / CAM dedicated abutment 100 or a groove portion having a groove structure on the upper edge or a projection member of the same material such as titanium on one side of the outer surface It is possible to implement the guide fixing part 130 by further bonding to form a protrusion 130.

In addition, the guide fixing part 130 is provided by at least one eraser, a protrusion 130, a groove, etc., which are formed on the outside of the adhesive protrusion 120, in the case of the eraser, after bonding with the fabrication of the fabrication It is preferable to be provided in one cross section in consideration of the ease of fastening according to the present invention. In the case of the protrusion 130 and the groove, two protrusions or grooves are provided in consideration of ease of manufacture, ease of guide, ease of fastening, and anti-rotation. Is preferred.

On the other hand, the guide fixing part 130 is preferably provided with a protrusion 130 that protrudes in section on the outer surface of the adhesive protrusion 120.

That is, the guide fixing part 130 has a minimum size so as not to interfere with the fitting on the outer surface of the adhesive protrusion 120 having a circular cross section to facilitate the fitting passage hole (10a) of the custom abutment (10). It is provided with a protruding protrusion 130 of the semi-circular cross-sectional shape so as to be divided.

Here, the cross-sectional shape of the guide fixing part 130 may be a polygonal shape, such as a triangle, a square, and the like, but is not limited to the shape, but the outer side has a cross-sectional shape of an arc for smooth and smooth coupling.

In addition, the guide fixing part 130 is preferably provided with two protrusions 130 having the same interval and the shape corresponding to each other for the longest distance interval.

That is, the guide fixing portion 130 is provided with two protrusions 130 to face each other in the same straight line on the cross-sectional circular shape of the adhesive protrusion 120.

Therefore, the guide fixing part 130 has a minimum size so as not to interfere with the fitting when the fitting protrusion 120 is rotated to attach the adhesive protrusion 120 to the adhesive passage hole (10a), the size corresponding to each other By providing two projections 130 at equal intervals having the longest distance with each other, the minimum fixing to easily find and combine the reference for the rotation direction when the reference for one direction is necessary, and to prevent the rotational force in the rotation direction after the combination There is an advantage that can be guaranteed. Through this, fastening ease and coupling fastness can be improved.

On the other hand, the guide fixing part 130 is preferably formed over a portion of the vertical length of the adhesive protrusion 120 so that the introduction portion of the adhesive passage hole (10a) is fitted by rotation.

That is, the guide fixing part 130 is provided to have a length of 1/2 or less of the entire vertical length of the adhesive protrusion 120 in the vertical length direction at the lower end of the adhesive protrusion 120, this configuration is the adhesive When the fitting portion 120 and the adhesive passage hole (10a) is tightly fitted for bonding coupling is provided with an upper section to enable rotation to the introduction portion of the adhesive passage hole (10a) guided after being rotated to some extent Since it is completely fitted in a straight line, there is an advantage that can be more easily combined.

To this end, when the guide fixing part 130 is the protrusion 130, it is preferably formed at the lower portion of the adhesive protrusion 120, and in the case of the later erasing portion 530, the upper portion is formed at the upper portion thereof.

On the other hand, Figure 3 is a perspective view showing a CAD / CAM dedicated abutment 300 according to a second embodiment of the present invention.

Here, since the basic configuration of this embodiment is the same as that of the first embodiment described above, description thereof will be omitted.

On the other hand, in the present embodiment, the guide fixing part 330 is composed of the protrusion 330 as in the first embodiment, is formed over the entire vertical length of the adhesive protrusion 320 to improve the fixing property after coupling It is characterized by.

That is, the guide fixing portion 330 is preferably formed over the entire length of the adhesive protrusion 320 so that the fixing force is reinforced.

Therefore, the guide fixing part 330 is configured from the upper end of the adhesive projection 320, it is possible to quickly find the guide criteria when combining the custom abutment 10, of the adhesive projection 320 after the coupling Fixing force to prevent rotation according to the cross-sectional circular structure is applied over the entire vertical length of the adhesive protrusion 320, it is possible to continue to maintain a precise coupling state. Through this, after the customized abutment 10 is seated on the CAD / CAM dedicated abutment 300, there is an advantage of helping the correct prosthetic operation to improve the stability of the coupling to a stable fixation without rotating or shaking the coupling direction is wrong. .

On the other hand, Figure 4 is a perspective view showing a CAD / CAM dedicated abutment 400 according to a third embodiment of the present invention.

Here, since the basic configuration of this embodiment is the same as the above-described embodiment, detailed description thereof will be omitted.

On the other hand, in the present embodiment, the guide fixing part 430 is provided with a groove portion 430 having a groove structure that is divided into the upper edge portion of the adhesive protrusion 420, the customized abutment 10 is the adhesive protrusion ( 420 is easily coupled while being rotated without being disturbed by other members, and is subsequently guided and locked and fixed to the groove 430 to be seated in a setting direction.

That is, the guide fixing part 430 is preferably provided with a groove portion 430 having a groove structure recessed to be divided into the upper edge portion of the adhesive protrusion 420.

In addition, the groove portion 430 is formed such that one side of the upper edge of the adhesive protrusion 420 has a '-' shaped groove to the lower side, and is formed in two places in the corresponding form located on the same line with each other desirable.

Therefore, the guide fixing part 430 is provided with a groove formed at the upper end of the adhesive protrusion 420, so that the customized abutment 10 is easily and quickly fitted without a configuration that is hindered by the adhesive protrusion 420. At the end of the engagement and guided in the set direction to secure the custom abutment 10.

In this way, the customized abutment 10 is freely rotated to the adhesive protrusion 420 while being coupled to each other and fastened in a set direction, thereby improving the fastness of the fastening.

On the other hand, Figure 5a is a perspective view showing a CAD / CAM dedicated column 500 according to the external connection method according to a fourth embodiment of the present invention, Figure 5b is a CAD according to the external connection method according to a fourth embodiment of the present invention A side view of the main part showing the / CAM dedicated abutment 500.

Here, the CAD / CAM dedicated abutment 500 of the present embodiment is an internal connection method (100 and 15) and an external connection method (classified according to the connection method of the implant abutment (10, 500) and the fixture 15 ( The fixture connection part 111 and the fixture contact part which are used for the external connection method among the 500 and 15, which are excluded according to the above-described internal connection method and the presence or absence of a part inserted into the fixture 15. Since the basic configuration except for 112) is the same as the above-described embodiment, a detailed description thereof will be omitted.

On the other hand, in the present embodiment, in the CAD / CAM dedicated abutment 500 of the external connection method, the guide fixing portion 530 has a cross section that is divided in cross section on the outer surface in the circumferential direction of the adhesive projection 520, the deleting portion 530 It is provided with, characterized in that to facilitate the production in a minimum position and size.

Here, the configuration of the above-described protrusions 130, 330, the groove 430 and the deletion portion 530 is formed in the adhesive protrusions 120, 320, 420, 520, which is a common configuration of the internal connection method and the external connection method. Since it is, it can be applied to both the internal connection method and the external connection method.

In addition, the configuration of the deletion unit 530 is preferably manufactured integrally with the CAD / CAM dedicated rent 500, there is an advantage that can be easily applied to the existing CAD / CAM dedicated rent. At this time, the forming of the eraser by the cutting machine is performed before the scan operation of the CAD cam system.

In other words, it is preferable that the guide fixing part 530 is provided with a deleting part 530 having a cross section that is divided in cross section on the outer surface of the adhesive protrusion 520.

Here, the deletion portion 530 is a minimum length in the direction of the center axis from the outer side of the border side of the adhesive protrusion 520 so as not to cause deformation in the inner passage hole 521 of the adhesive protrusion 520 having a cross-sectional circular shape. It is cut in section.

Therefore, the guide fixing part 530 is formed at one position of the minimum position on the outer edge of the vertical length of the adhesive protrusion 520, and provided as a deletion portion of the cross section having a minimum distinguishable width, it is easily manufactured There is an advantage that can be.

On the other hand, Figure 6 is a perspective view showing a CAD / CAM dedicated column 600 according to the external connection method according to a fifth embodiment of the present invention.

Here, since the basic configuration of the present embodiment is the same as the above-described embodiment, description thereof will be omitted.

On the other hand, the present embodiment is characterized in that the configuration of the deletion unit 530 according to the fourth embodiment is formed over the entire length of the adhesive projection 620, the fixing force is further strengthened.

Here, the deletion part 630 according to the present embodiment is formed to extend from the top to the bottom of the adhesive projection 620 is easily guided and coupled, the fixing force acts on the entire length of the adhesive projection 620 It can improve the fixing more.

As described above, CAD / CAM dedicated abutment (100, 300, 400, 500, 600) according to each embodiment of the present invention can be applied to both the internal connection or the external connection method, the adhesive projections 120, 320 Guide fixing parts 130, 330, 430, 530, and 630, which are reference for the coupling direction when the 420, 520, and 620 are inserted into the adhesive passage hole 10a, the accuracy, stability, rapidity, and induction of the fastening. The protrusions 130 and 330, the grooves 430, and the deletion parts 530 and 630 may be selectively provided according to the intention of the manufacturer according to the ease and ease of manufacture.

Through this, the guide fixing part is provided, so that the customized prosthesis is easily seated in the intended direction according to the dental structure of the subject, so that the side effect of the procedure such as the weakening of the binding force due to the structural mismatch is prevented, The improvement of work efficiency excluding the operation of additionally forming the anti-rotation shape has the effect of significantly improving the reliability and rapidity of the implant procedure.

As described above, the implant abutment according to the preferred embodiment of the present invention is not limited to each of the above-described embodiments, and the general knowledge in the art to which the present invention belongs without departing from the scope of the claims of the present invention. It is possible to be modified by the exciter, and such a modification is within the scope of the present invention.

1 is a schematic view showing the structure of an implant to which the implant abutment according to the first embodiment of the present invention is applied.

Figure 2a is a perspective view showing a CAD / CAM dedicated abutment according to a first embodiment of the present invention.

Figure 2b is a side view showing a CAD / CAM dedicated abutment in accordance with a first embodiment of the present invention.

 Figure 3 is a perspective view showing a CAD / CAM dedicated abutment according to a second embodiment of the present invention.

4 is a perspective view showing a CAD / CAM dedicated abutment according to a third embodiment of the present invention.

Figure 5a is a perspective view showing a CAD / CAM dedicated abutment according to the external connection method according to a fourth embodiment of the present invention.

Figure 5b is a side view showing the CAD / CAM dedicated abutment according to the external connection method according to a fourth embodiment of the present invention.

Figure 6 is a perspective view showing a CAD / CAM dedicated abutment according to the external connection method according to a fifth embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: customized abutment 10a: adhesive passage

13: coping 15: fixture

G: gum B: alveolar bone

100, 300, 400, 500, 600: CAD / CAM aisle 110: Connection

111: fixture connection 112: fixture contact

113: gingival contact 114: margin

120, 320, 420, 520, 620: adhesive projection

130, 330, 430, 530, 630: guide

Claims (7)

CAD / CAM dedicated abutment coupled to the upper side of the fixture, the adhesive projection extending to the upper side of the connecting portion and a guide fixing portion formed on one side along the circumferential direction of the adhesive projection to guide the coupling direction; And It is coupled to the upper side of the CAD / CAM dedicated abutment, it comprises a custom abutment provided with an adhesive passage hole formed by using the scan data for the outer shape of the adhesive projection by the CAD / CAM so that the adhesive projection is inserted therein Abutment for implants. The method of claim 1, The guide fixing portion is formed integrally with the CAD / CAM dedicated abutment, the abutment for the implant, characterized in that the customized abutment is provided on the outer surface of the adhesive projection to be seated in contact with the CAD / CAM dedicated abutment. The method of claim 1, The guide fixing part is an implant abutment, characterized in that provided with a deletion portion that is removed in cross section on the outer surface of the adhesive projection. The method of claim 1, The guide fixing portion is an implant abutment, characterized in that provided with a protrusion protruding in cross section on the outer surface of the adhesive projection. The method according to any one of claims 3 to 4, The guide fixing part is formed for the implant abutment, characterized in that formed over the entire length of the adhesive projections so that the fixing force is reinforced. The method according to any one of claims 3 to 4, And the guide fixing part is formed over a portion of the vertical length of the adhesive protrusion so that the introduction part of the adhesive passage hole is rotatable. The method of claim 1, The guide fixing portion is implant abutment characterized in that it is provided with a groove recessed on the upper edge of the adhesive projection.

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