KR20210012179A - Dual spring type dental implant whichof crown is detached easily - Google Patents

Abstract

The present invention relates to a dual-spring-type dental implant for easily attaching and removing a crown. The dual-spring-type dental implant for easily attaching and removing a crown comprises: a fixture; an abutment; a fastening bolt; a first ring-shaped spring; a second ring-shaped spring; and a crown cap. According to the present invention, the crown cap can be detached from the abutment more quickly and easily without damage to a coupling region.

Description

DUAL SPRING TYPE DENTAL IMPLANT WHICHOF CROWN IS DETACHED EASILY}

The disclosed subject matter relates to a dental implant that is fixed to an alveolar bone to supplement a missing tooth.

Unless otherwise indicated in the specification, the contents described in this identification item are not prior art to the claims of this application, and description in this identification item is not admitted to be prior art.

In general, teeth are body tissues responsible for a mastication function that helps digestion by breaking or grinding food finely. If these teeth are lost, for example, due to tooth decay due to tooth decay, a problem with mastication occurs, and food cannot be chewed properly and digestion is difficult, making it difficult not only to eat food to the full, but also to smooth intake of nutrients. do. For this reason, teeth have been recognized as an important part of the body since ancient times, and play an important role in leading a healthy life.

Normally, humans have a total of 32 teeth, including 16 teeth in the maxilla and 16 teeth in the mandible, and the teeth created in infancy are replaced with permanent teeth once in childhood, and then oral activities are performed using permanent teeth for life. Perform.

Since human teeth are replaced with permanent teeth once in childhood, even if the teeth are lost, new teeth are no longer created, and thus the lost teeth or the surrounding tissues are repaired through prosthetic treatment at the dentist.

For example, in the case of universal prostheses such as bridges, partial dentures, dentures, etc., there is a problem of causing inconvenience in use due to foreign body sensation. For this reason, in recent years, dental implants are in the spotlight that allow all functions and appearances that are almost identical to those of natural teeth to be restored without damaging surrounding teeth or tissues when a tooth is damaged.

Dental implants are largely composed of a fixture fixed to the alveolar bone, an abutment coupled to the fixture, and a crown integrally coupled to the abutment. The fixture corresponds to an artificial tooth root embedded and fixed in the alveolar bone, the abutment serves to connect the fixture and the crown, and the crown corresponds to an artificial tooth that reproduces the same shape and function as a natural tooth, that is, a prosthesis.

The dental implant may include a fixture and an abutment in a separate type, or may include an implant fixture in which the fixture and an abutment are integrally formed. Further, in the dental implant, a fastening bolt for fastening and fixing the abutment to the fixture may be integrally formed with the abutment, or may be formed separately from the abutment.

In the case of a dental implant as described above, it is often necessary to separate the crown from the implant fixture or abutment for additional correction or replacement of the crown corresponding to the artificial tooth.

As an example of a dental implant for facilitating the attachment and detachment of such a crown, Korean Patent Registration No. 10-1869348 (2018.06.20. Announcement), which is embedded in the alveolar bone, has a threaded on the outer circumferential surface of the gingival implant and the gingival implant. A lower fixture located at the top and including an upper coupling portion formed to be coupled to the upper coupling body, and an upper coupling portion receiving portion to be coupled to the upper coupling portion, and an upper coupling body to which a crown is coupled to an outer circumferential surface, and the gum implantation The portion includes a cutting groove formed in a spiral shape along the longitudinal direction of the gum insertion portion, and the upper coupling portion is formed to be coupled to the second coupling portion of the upper assembly, and the groove is formed long along one circumference of the upper coupling portion. 1 The fastening part and the upper coupling part are formed on one side and the other side respectively, and formed on one side and the other side of the upper coupling part to prevent the lower fixture embedded in the alveolar bone from being separated in the reverse direction, and formed to protrude sharply to the gums. An implant fixture is disclosed, comprising an implantable reverse release protrusion for implantation, wherein the upper coupling body is formed to be coupled to the first coupling portion of the lower fixture, and includes a second coupling portion in the form of a ball. .

In addition, Korean Patent Registration No. 10-1633258 (Announcement on June 27, 2016) includes an abutment coupled with an upper portion of the implant, and a crown coupling structure having a crown attached to the upper portion of the abutment, and the abutment The ment includes an implant coupling portion coupled to the implant, and a coupling structure coupled to the crown coupling structure, wherein the coupling structure has a ball seating portion on which a ball is seated by forming an upper outer peripheral surface of the abutment in a curved shape, and the In the crown coupling structure, a crown attachment portion to which the crown is attached, and an abutment coupling portion coupled to the abutment are formed, and the abutment coupling portion includes an abutment coupling portion body into which the coupling structure is inserted, and a plurality of A plurality of abutment-fixing ball holes are formed in the abutment coupling body, and the abutment-fixing ball hole is formed so that the radius gradually decreases toward the inside. The buttment fixing ball holes are formed to correspond to the abutment fixing balls, respectively, the abutment fixing balls are accommodated in the abutment fixing ball holes, and the fixing ring comprises a plurality of abutment fixing balls in which the abutment fixing balls are accommodated. Disclosed is an implant-coupled prosthesis that is easy to perform treatment and correction, characterized in that it is formed outside the buttment fixing ball hole and is formed so that the abutment fixing ball is fixed to the ball seat when combined with the abutment.

However, in the case of dental implants as described above, only the ball and the ball seat corresponding to the ball are initiated at the joint of the implant fixture or the abutment and the crown cap. There was a problem in that recombination of the crown was not easy due to the breakage of the coupling part such as the ball.

1. Korean Patent Registration No. 10-1869348 (2018.06.20. Announcement) 2. Korean Patent Registration No. 10-1633258 (2016.06.27. Announcement)

As elastic coupling is applied to the joint portion of the abutment and the crown cap, the crown cap can be easily attached and detached from the abutment without damage to the joint portion during additional correction or replacement of the crown. We intend to provide a dual spring type dental implant dental implant.

In addition, the crown cap can be firmly bonded to the abutment without rotation or flow due to external force due to its relatively strong elastic force, and it can prevent permanent deformation or damage when stress is generated due to mastication activity or when the crown is attached or detached for additional correction procedures. We intend to provide a dual spring type dental implant that is easy to attach and detach one crown.

In addition, it is not limited to the technical problems as described above, and it is obvious that another technical problem may be derived from the following description.

The disclosed contents include a fixture that is embedded and fixed in the alveolar bone and has a fastening hole, an abutment having a fastening bolt insertion hole formed through it in a longitudinal direction and a seating step formed around an upper circumference, and a fastening bolt insertion hole of the abutment. A fastening bolt that penetrates through and is fastened to a fastening hole of the fixture and pressurizes and fixes the abutment to the fixture, a first ring-shaped spring that is seated and fixed to the seating step of the abutment and provides elasticity in the radial direction, and the A second ring-shaped spring that is fitted to the outer circumferential surface of the first ring-shaped spring, is seated and fixed to the seating step of the abutment, provides elasticity in a radial direction, and forms a first elastically coupled uneven portion around the outer circumference together with the first ring-shaped spring, A detachable and detachable groove is formed inside the abutment to which the first and second ring-shaped springs are coupled, and a detachable coupling groove is formed in the detachable groove. 2 As an embodiment, a dual spring-type dental implant that is easily detachable and includes a crown cap having an elastically coupled uneven portion and a crown integrally formed on the outside is presented as an embodiment.

In addition, the disclosed contents include a fixture that is embedded and fixed in the alveolar bone and has a fastening hole, a rotation driving groove is formed on the upper side, a seating step is formed around the upper side, and a fastening bolt part is integrally formed in the fastening hole of the fixture. An abutment, a first ring-shaped spring that is seated and fixed to the seating step of the abutment and provides elasticity in the radial direction, and a first ring-shaped spring that is fitted to the outer circumferential surface of the first ring-shaped spring and is seated and fixed to the seating end of the abutment A second ring-shaped spring that provides elasticity in a direction and forms a first elastically coupled uneven portion around an outer circumference together with the first ring-shaped spring, and the abutment to which the first and second ring-shaped springs are coupled therein. A detachable coupling groove to be inserted and coupled is formed, and a second elastic coupling uneven portion elastically closely coupled to the first elastic coupling uneven portion is formed in the detachable coupling groove, and a crown cap having a crown integrally formed on the outside. A dual spring-type dental implant that can be easily detached from the crown is presented as another embodiment.

In the dual spring type dental implant, which is easy to attach and detach the crown according to the disclosed contents, two springs, that is, a first and a second ring type spring, are simultaneously interposed at the joint site of the abutment and the crown cap, so that the crown cap is attached to the abutment. As it is elastically coupled, but is configured to be detachable only by a force of a certain amount or more, there is an advantage that the crown cap in which the crown is integrally formed can be easily detached from the abutment without damage to the coupling portion.

In addition, the dual spring type dental implant, which is easy to attach and detach the crown according to the disclosed contents, is a dual spring structure in which a second ring type spring is coupled around the outer circumference of the first ring type spring, so that the abutment and the crown cap are combined. As a relatively strong elastic force is provided, it can be firmly bonded to the abutment without rotation or flow due to external force, and it is also advantageous to prevent permanent deformation or damage when stress occurs due to mastication activity or when attaching and detaching the crown for additional correction procedures. have.

The effects of the present invention are not limited to the effects mentioned above, and other effects that are not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a dual spring type dental implant that is easy to attach and detach a crown according to an embodiment of the disclosed content.
Figure 2 is an exploded perspective view of a dual spring-type dental implant for easy crown attachment and detachment according to an embodiment of the disclosed content.
3 is an exploded cross-sectional view of a dual spring-type dental implant for easy crown attachment and detachment according to an embodiment of the disclosed content.
Figure 4 is a cross-sectional structure diagram of a dual spring type dental implant for easy crown attachment and detachment according to an embodiment of the disclosed content.
5 is a perspective view of an abutment integrally formed with a fastening bolt part.
6 is a perspective view of an embodiment of a crown cap.
7 is a perspective view of another embodiment of a crown cap.
8 is a procedure flowchart of a dual spring-type dental implant in which the crown is easily detachable according to an embodiment of the disclosed contents.

Hereinafter, with reference to the accompanying drawings looks at the configuration and effects of the preferred embodiment. For reference, in the drawings below, each component is omitted or schematically illustrated for convenience and clarity, and the size of each component does not reflect the actual size. In addition, the same reference numerals refer to the same elements throughout the specification, and reference numerals for the same elements in individual drawings will be omitted.

1 is a perspective view of a dual spring type dental implant with easy crown attachment and detachment according to an embodiment of the disclosed content, and FIG. 2 is a disassembled dual spring type dental implant with easy crown attachment and detachment according to an embodiment of the disclosed contents A perspective view, FIG. 3 is an exploded cross-sectional view of a dual spring type dental implant with easy crown attachment and detachment according to an embodiment of the disclosure, and FIG. 4 is a dual spring type dentistry with easy crown attachment and detachment according to an embodiment of the disclosed contents It is a cross-sectional structure diagram of a dragon implant.

The dual spring type dental implant, which is easy to attach and detach the crown according to an embodiment of the disclosed content, is embedded and fixed in the alveolar bone and fixed to the alveolar bone, and a fixture 10 having a fastening hole 11 formed therein, A fastening bolt insertion hole 21 is formed through the longitudinal direction and a seating step 23 is formed around the upper circumference of the abutment 20 and the fastening bolt insertion hole 21 of the abutment 20 is penetrated. Thus, while being fastened to the fastening hole 11 of the fixture 10, the abutment 20 is mounted on the mounting step 23 of the abutment 20 and the fastening bolt 30 for pressing and fixing the abutment 20 to the fixture 10 The first ring-shaped spring 40 that is fixed and provides elasticity in the radial direction, and is fitted to the outer circumferential surface of the first ring-shaped spring 40, is seated and fixed to the seating step 23 of the abutment 20 and provides elasticity in the radial direction. And a second ring-shaped spring (50) forming a first elastic coupling uneven portion (A) around the outer circumference together with the first ring-shaped spring (40), and first and second ring-shaped springs (40, 50) inside A detachable coupling groove 61 that is detachably fitted and coupled to the coupled abutment 20 is formed, and a second elastically closely coupled to the first elastic coupling uneven portion (A) in the detachable coupling groove 61 The elastically coupled concave-convex portion (B) is formed, and the outer includes a crown cap 60 integrally formed with a crown (not shown).

Here, the fixture 10 corresponds to an artificial tooth root that is embedded and fixed in the alveolar bone, and a screw thread for being embedded and fixed in the alveolar bone is formed on the outer circumferential surface, and a fastening hole 11 for fastening and fixing the abutment 20 on the upper surface. ) Is formed.

The structure, material, and manufacturing method of the fixture 10 are already known in the field of dental implants, and further detailed descriptions will be omitted for simplification of the specification.

The abutment 20 is pressed and fixed to the above-described fixture 10. The abutment 20 is a connecting member that connects the fixture 10 embedded in the alveolar bone and the crown cap 60 integrally formed with the crown corresponding to the artificial tooth, and the lower side is pressurized and fixed to the fixture 10 and the upper side In the crown cap 60 is detachably coupled.

In the interior of the abutment 20, a fastening bolt insertion hole 21 for through-connection of the fastening bolt 30 to be described later is formed through the lengthwise direction. In addition, a seating step 23 on which the first and second ring-shaped springs 40 and 50 to be described later are seated and coupled is formed around the upper side of the abutment 20.

A first elastic guide slit 25 is formed around the upper end of the fastening bolt insertion hole 21 of the abutment 20 at predetermined angle intervals. The first elastic induction slit 25 allows an elastic force to be generated in the radial direction by vertically dividing the upper circumference of the fastening bolt insertion hole 21 of the abutment 20 by the length of the screw, thereby generating elastic force in the radial direction. Accordingly, the bonding force of the crown cap 60 may be increased. The first elastic induction slit 25 is shown to be formed at 120 degree angular intervals around the upper end of the fastening bolt insertion hole 21 of the abutment 20, but according to the embodiment, including 90 degree angular intervals. It can be formed at different angular intervals.

The abutment 20 has a seating step 23 on which the first and second ring springs 40 and 50 are seated and coupled, and a first elastic induction slit 25 is formed at a certain angle interval around the top. Except for the same as a conventional abutment, further detailed description will be omitted here for the sake of simplification of the specification.

The above-described abutment 20 is pressure-fixed to the fixture 10 by the fastening bolts 30. The fastening bolt 30 penetrates the inside of the abutment 20 through the fastening bolt insertion hole 21, and the lower end is fastened and fixed to the fastening hole 11 of the fixture 10.

In the bolt head of the fastening bolt 30, a rotation driving groove 31 to which a rotation tool for forcibly rotating the fastening bolt 30 is coupled can be formed in the form of, for example, a hexagonal groove. A second elastic induction slit 33 is formed around the bolt head.

The second elastic induction slit 33 allows the circumference of the bolt head of the fastening bolt 30 to be vertically divided by the length of the bolt to generate an elastic force in the radial direction, and the elastic force generated by the elastic force of the fastening bolt 30 Cohesion can be increased. The second elastic induction slit 33 is shown to be formed at 180 degrees angular intervals around the bolt head of the fastening bolt 30, but depending on the embodiment, at different angular intervals including 120 degrees or 90 degrees. Also can be formed.

Since the configuration, material, and fastening method of the fastening bolt 30 excluding the second elastic induction slit 33 are the same as those for a typical implant fastening bolt, further detailed descriptions will be omitted here for simplicity of the specification.

In addition, the abutment 20 described above may be formed separately from the fastening bolt 30, but depending on the embodiment, the fastening bolt may be integrally formed. 5 shows a perspective view of an abutment integrally formed with a fastening bolt part.

The abutment 20 ′ is formed at the upper end instead of the fastening bolt insertion hole 21 and the fastening bolt portion 27 ′ fastened to the fastening hole 11 of the fixture 10. The configuration of the abutment 20 is the same as the above-described abutment 20 except for the formation of a rotation drive groove (not shown) in which a rotation tool for forcibly rotating the buttment 20' is formed, so further detailed description is omitted here. I will do it.

The first ring-shaped spring 40 is seated and fixed to the seating step 23 of the abutment 20 described above. The first ring-shaped spring 40 is combined with the second ring-shaped spring 50 to be described later so that the crown cap 60 can be detachably coupled to the upper side of the abutment 20 so that the first elastic coupling is uneven. It forms part (A) and acts as a kind of retaining ring that grips the crown cap 60 so that it does not deviate.

One side of the first ring-shaped spring 40 is formed with a first incision slit 41 for inducing elastic force to be provided in the radial direction.

In addition, the outer circumferential surface of the first ring-shaped spring 40 is interviewed with the inner circumferential surface of the second ring-shaped spring 50, and the second ring-shaped spring 50 at the upper end of the outer circumferential surface of the first ring-shaped spring 40 is jammed to prevent any deviation from the top. A jaw 43 is formed.

The second ring-shaped spring 50 is fitted so as to overlap the outer circumferential surface of the above-described first ring-shaped spring 40 to be seated and fixed to the seating step 23 of the abutment 20. The second ring-shaped spring 50 is combined with the first ring-shaped spring 40 so that the crown cap 60 is detachably coupled to the upper side of the abutment 20 so that the first elastically coupled uneven portion (A) ) Is formed and at the same time acts as a kind of retaining ring that holds the crown cap 60 so that it does not deviate.

On one side of the second ring-shaped spring 50, a second incision slit 51 is formed to induce an elastic force in the radial direction, and on the other side of the second ring-shaped spring 50, the radial elastic force can be doubled from the top. It is preferable that a cut-out slit 51a cut to the center side is formed. In addition, a ring-shaped groove 53 forming a recess among the first elastically coupled uneven portions A is formed around the outer circumference of the second ring-shaped spring 50.

The crown cap 60 is detachably coupled to the abutment 20 to which the first and second ring springs 40 and 50 are coupled. The crown cap 60 is a crown that forms an artificial tooth, and is formed by a first elastically coupled uneven portion (A) formed by an overlapping combination of the first and second ring springs (40, 50). It is detachably coupled to the buttment (20).

In the interior of the crown cap 60, there is formed a detachable coupling groove 61 that is fitted and coupled to the upper side of the abutment 20 to which the first and second ring-shaped springs 40 and 50 are coupled, and the detachable coupling groove ( 61) is formed to be tapered toward the top so as to correspond to the upper outer peripheral surface of the abutment 20.

In the detachable coupling groove 61, a second elastic coupling uneven portion (B) elastically coupled to the first elastic coupling uneven portion (A) formed by the overlapping combination of the first and second ring springs (40, 50). ) Is formed. The second elastically coupled uneven portion (B) includes a ring-shaped protrusion 63 that elastically adheres to the ring-shaped groove 53 included in the first elastically coupled uneven portion (A).

The crown cap 60 is integrally formed with a crown corresponding to an artificial tooth. This crown may be formed as a single crown, but may be formed as a bridge-type crown according to an embodiment.

When the crown integrally formed with the crown cap 60 is formed as a single crown, a polygonal screw portion such as a hexagonal screw portion is formed on the lower side of the abutment 20 inserted into the fixture 10 It is preferable that the (20) is prevented from randomly rotating or lateral flow by external force.

When the crown formed integrally with the crown cap 60 is formed as a bridge-type crown, the abutment 20 is not rotated randomly or left and right by an external force due to two or more fixed supports, so the fixture 10 It is preferable that a truncated cone is formed on the lower side of the abutment 20 to be inserted into it.

In addition, although not shown, the upper side of the abutment is formed in the form of a polygonal protrusion in order to prevent arbitrary rotation of the crown cap 60 with respect to the abutment 20, and the upper side of the detachable coupling groove 61 of the crown cap 60 A polygonal groove corresponding to the upper side of the abutment 20 may be formed.

6 and 7 illustrate various embodiments of such a crown cap.

As shown in FIGS. 6 and 7, a separation preventing groove 65 may be recessed around the upper side of the crown cap 60. The separation preventing groove 65 prevents any separation of the crown as the material forming the crown flows inward and induces it to be firmly coupled to the crown cap 60, and may be formed as a ring-shaped groove. In order to prevent arbitrary separation of the crown, a ring-shaped protrusion that penetrates into the material forming the crown may be protruded around the upper circumference of the crown cap 60 instead of the separation-preventing groove 65 formed in the form of a ring-shaped groove. .

In addition, as shown in Figure 6, the upper side of the crown cap 60 may be formed with a circular coupling portion 67 that is coupled with the material forming the crown, depending on the embodiment is coupled with the material forming the crown An elliptical coupling portion 69 that prevents arbitrary rotation of the crown relative to the crown cap 60 may be protruded.

In addition, as shown in Figure 6, the upper side of the crown cap 60, only the circular coupling portion 67 coupled with the material forming the crown is protruded, and the arbitrary rotation of the crown relative to the crown cap 60 is prevented. If necessary, a cutout 67a for preventing the rotation of the crown may be selectively formed in the circular coupling portion.

In addition, although not shown, a packing ring may be coupled around the upper side of the abutment 20 for airtight coupling of the crown cap 60 to the abutment 20. To this end, a packing ring coupling groove is formed around the upper circumference of the abutment 20, and a packing ring groove into which the packing ring is inserted is recessed in the radial direction in the detachable coupling groove 61 of the crown cap 60.

8 is a flowchart illustrating a procedure of a dual spring-type dental implant in which a crown can be easily attached and detached according to an embodiment of the disclosed subject matter. Hereinafter, referring to FIGS. 1 to 8, the procedure and operational relationship of the dual spring type dental implant with easy crown attachment and detachment according to an embodiment of the disclosed subject matter will be described as follows:

First, in the state where the fixture 10 is embedded and fixed in the alveolar bone, as shown in FIG. ) To form a first elastic coupling uneven portion (A) on the outer circumferential surface of the abutment (20) by being fitted to the seating step (23). Then, after inserting the lower part of the abutment 20 into the upper side of the fixture 10, the fastening bolt 30 is fastened to the fixture 10 through the fastening bolt insertion hole 21 of the abutment 20. It is fastened to the ball (11).

When the crown cap 60 having a crown (not shown) integrally formed with the abutment 20 to which the first and second ring springs 40 and 50 are coupled is pressed downward and inserted, the crown cap 60 The coupling of the crown cap 60 is completed while the second elastic coupling uneven portion (B) formed in the detachable coupling groove 61 of the first elastic coupling uneven portion (A) is elastically and closely coupled with the first elastic coupling uneven portion (A).

Later, when additional correction or replacement of the crown is required, if a certain amount of force is applied by inserting a tool for separating the crown cap 60, the overlapping combination of the first and second ring springs 40 and 50 The crown cap 60 can be separated while the second elastic coupling uneven portion (B) formed in the detachable coupling groove 61 of the crown cap 60 is separated from the formed first elastic coupling uneven portion (A). Through the coupling process, the crown may be additionally corrected or the replaced crown cap 60 may be combined again.

The dental implant, which is easy to attach and detach the crown according to an embodiment of the disclosed subject matter, has two springs, that is, the first and second ring springs 40, 50 at the joint site of the abutment 20 and the crown cap 60. ) Is interposed at the same time, so that the crown cap 60 can be elastically coupled to the abutment 20, but the crown cap 60 is formed integrally with the crown as it is configured to be detachable only by a force greater than a certain amount. It can be easily attached and detached from the abutment 20 without being damaged.

In addition, a relatively strong elastic force is provided to the joint portion of the abutment 20 and the crown cap 60 by a dual spring structure in which the second ring spring 50 is coupled around the outer circumference of the first ring spring 40. Accordingly, the crown cap 60 in which the crown is integrally formed can be firmly coupled to the abutment 20 without rotation or flow due to external force, and when stress occurs due to mastication activity or when attaching and detaching the crown for additional correction procedures Permanent deformation or breakage can be prevented.

Although preferred embodiments of the present invention have been described with reference to the accompanying drawings, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and represent all the technical ideas of the present invention. Since it is not, it should be understood that there may be various equivalents and modifications that may be substituted for them at the time of application. Therefore, the embodiments described above should be understood as illustrative and non-limiting in all respects, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and the All changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

10: fixture
11: Fastening hole
20, 20': abutment
21: Fastening bolt insertion hole
23: seating step
25: first elastic induction slit
27': Fastening bolt part
30: tightening bolt
31: rotation drive groove
33: second elastic induction slit
40: first ring-shaped spring
41: first incision slit
43: locking jaw
50: second ring spring
51: second incision slit
51a: cutting slit
53: ring groove
60: crown cap
61: detachable coupling groove
63: ring-shaped projection
65: departure prevention groove
67: circular coupling part
67a: cutout
69: elliptical joint
A: The first elastic coupling irregularities
B: 2nd elastic coupling irregularities

Claims (11)

A fixture embedded and fixed in the alveolar bone and forming a fastening hole;
An abutment in which a fastening bolt insertion hole is formed through the longitudinal direction and a seating step is formed around an upper circumference;
A fastening bolt that penetrates through the fastening bolt insertion hole of the abutment and is fastened to the fastening hole of the fixture to press and fix the abutment to the fixture;
A first ring-shaped spring that is seated and fixed to the seating step of the abutment and provides elasticity in the radial direction;
A second ring-shaped spring fitted to an outer circumferential surface of the first ring-shaped spring, fixed to the seating step of the abutment, providing elasticity in a radial direction, and forming a first elastically coupled uneven portion around an outer circumference together with the first ring-shaped spring; And
A detachable and detachable groove is formed inside the abutment to which the first and second ring-shaped springs are coupled, and a detachable coupling groove is formed in the detachable groove. 2 A dual-spring dental implant that is easily detachable from the crown, including a crown cap on which an elastically coupled uneven portion is formed and the crown is integrally formed on the outside. The method according to claim 1,
A first incision slit is formed on one side of the first ring-shaped spring so that elastic force is provided to the first ring-shaped spring in a radial direction,
A second cutting slit is formed on one side of the second ring-shaped spring so that elastic force is provided to the second ring-shaped spring in the radial direction, and a cutting slit cut from the top to the center is formed on the other side of the first ring-shaped spring. A dual-spring dental implant that is easy to attach and detach the crown, characterized in that. The method according to claim 1,
A first elastic guide slit is formed at predetermined angle intervals so that elastic force is generated in the radial direction around the upper end of the fastening bolt insertion hole of the abutment,
A dual spring for easy crown attachment and detachment, characterized in that a rotation drive groove is formed in the bolt head of the fastening bolt, and a second elastic guide slit is formed around the bolt head of the fastening bolt so that elastic force is generated in a radial direction. Type dental implant. The method according to claim 1,
The first elastic coupling uneven portion includes a ring-shaped groove formed around the outer circumference of the second ring-shaped spring, and the second elastic coupling uneven portion includes a ring-shaped protrusion elastically in close contact with the ring-shaped groove. This easy-to-use dual-spring dental implant. The method according to claim 1,
A dual spring-type dental implant for easy crown attachment and detachment, characterized in that a polygonal screw portion or a truncated cone portion is formed on the lower side of the abutment inserted into the fixture. The method according to claim 1,
A dual spring type dental implant for easy crown attachment and detachment, characterized in that a detachment preventing groove for preventing arbitrary detachment of the crown is formed in the upper circumference of the crown cap. The method according to claim 1,
The crown formed integrally with the crown cap is a dual spring type dental implant that is easily detachable from the crown, characterized in that the crown is formed as a single crown or a bridge type crown. The method according to claim 1,
A dual spring type dental implant that is easy to attach and detach the crown, characterized in that a circular coupling portion or an elliptical coupling portion is formed on the upper side of the crown cap. The method according to claim 1,
A dual spring type dental implant for easy crown attachment and detachment, characterized in that a circular coupling portion protrudes from the upper side of the crown cap, and a cutout portion for preventing rotation of the crown is selectively formed on the circular coupling portion. A fixture embedded and fixed in the alveolar bone and forming a fastening hole;
An abutment in which a rotation driving groove is formed in the upper side, a seating step is formed around the upper side, and a fastening bolt part is integrally formed in the fastening hole of the fixture;
A first ring-shaped spring that is seated and fixed to the seating step of the abutment and provides elasticity in the radial direction;
A second ring-shaped spring fitted to an outer circumferential surface of the first ring-shaped spring, fixed to the seating step of the abutment, providing elasticity in a radial direction, and forming a first elastically coupled uneven portion around an outer circumference together with the first ring-shaped spring; And
A detachable and detachable groove is formed inside the abutment to which the first and second ring-shaped springs are coupled, and a detachable coupling groove is formed in the detachable groove. 2 A dual-spring dental implant that is easily detachable from the crown, including a crown cap on which an elastically coupled uneven portion is formed and the crown is integrally formed on the outside. The method of claim 10,
A dual spring-type dental implant for easy crown attachment and detachment, characterized in that an elastic guide slit is formed at predetermined angle intervals so that elastic force is generated in a radial direction around the rotation drive groove of the abutment.

Images