KR20200089479A - Dental implant whichof crown is detached easily - Google Patents

Abstract

Disclosed contents relate to a dental implant, characterized in that elastic bonding is applied to a bonding portion where a crown is bonded to any one of an implant fixture, an integrated abutment, and an abutment, and thus, during an exchange procedure or an additional correction procedure of the crown, the crown can be quickly and easily attached to or detached from any one of the implant fixture, the integrated abutment, and the abutment without damage to the bonding portion. The dental implant having an easily removable crown comprises: an implant fixture having a fixture portion formed a lower side to be buried and fixed to the alveolar bone and an elastic bushing bonding groove formed in an upper circumference thereof; an elastic bushing bonded to the elastic bushing bonding groove of the implant fixture and having slits formed at intervals around the circumference and providing elasticity in a radial direction and elastic bonding protrusions formed between the slits; and a crown cap having an attachment/detachment bonding groove formed on an inner lower side to be inserted and bonded to the implant fixture to which the elastic bonding is bonded, a locking step portion, to which the elastic bonding protrusions of the elastic bushing are detachably bonded, formed in the attachment/detachment bonding groove to be recessed outward in a radial direction, and a crown integrally formed outside thereof.

Description

DENTAL IMPLANT WHICHOF CROWN IS DETACHED EASILY

The disclosed subject matter relates to a dental implant fixed to the alveolar bone to compensate for a missing tooth.

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

In general, teeth are body tissues responsible for the chewing function that helps digestion by crushing or grinding food. When these teeth are lost due to tooth extraction due to tooth decay, for example, there is a problem in chewing function, and food cannot be chewed properly and digestion is difficult. do. For this reason, teeth have long been recognized as an important part of the body 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 during infancy are replaced with permanent teeth once in childhood, and then oral activities are performed using permanent teeth for life. Perform.

Since the 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 surrounding tissues are restored through prosthetic treatment at the dentist.

For example, in the case of a universal prosthesis such as a bridge, partial denture, or denture, there is a problem that causes inconvenience in use due to foreign body sensation. For this reason, in recent years, dental implants (dental implants) that are capable of restoring all functions and appearances almost the same as natural teeth without damaging surrounding teeth or tissues have been spotlighted.

The dental implant is 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 the artificial root that is embedded and fixed in the alveolar bone, the abutment serves to connect the fixture and the crown, and the crown corresponds to the artificial tooth that reproduces the same shape and function as a natural tooth.

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

In the case of the dental implant as described above, it is often necessary to separate the crown from the implant fixture or abutment for further 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, the Korean Patent Registration No. 10-1869348 (announced on June 20, 2018) is embedded in the alveolar bone, but the gingival implant and the gingival implant are formed on the outer circumferential surface. A lower fixed body which is located on the upper side but includes an upper coupling portion formed to be engaged with the upper coupling body, and includes an upper coupling portion receiving portion to be engaged with the upper coupling portion, and includes an upper coupling body to which a crown is coupled to the outer circumferential surface, and the gum placement The portion includes a cutting groove formed in a spiral shape along the longitudinal direction of the gum placement portion, and the upper coupling portion is formed to be engaged with the second coupling portion of the upper coupling body, and the groove is formed to have a long groove around one side of the upper coupling portion. 1 formed on one side and the other side of the fastening portion and the upper coupling portion, and formed on one side and the other side of the upper coupling portion to prevent the lower fixed body buried in the alveolar bone from falling in the reverse direction, and is formed to protrude sharply to the gums. An implant fixture is disclosed, which includes an inverted release protrusion for implantation, and the upper coupling body is formed to be engaged with the first coupling portion of the lower fixture, and includes a ball-shaped second coupling portion. .

In addition, Republic of Korea Patent Registration No. 10-1633258 (announced on June 27, 2016) includes an abutment coupled to the upper portion of the implant, a crown is attached to the upper portion of the abutment, and a crown coupling structure coupled to the upper portion of the abutment. The treatment includes an implant coupling portion coupled to the implant, and a coupling structure coupled to the crown coupling structure. In the coupling structure, a ball seating portion is formed in which the upper outer circumferential surface of the abutment is formed in a curved surface, and the ball is seated. In the crown coupling structure, a crown attachment portion to which the crown is attached, an abutment coupling portion to be coupled with the abutment, and an abutment coupling portion, the abutment coupling portion body into which the coupling structure is introduced, and a plurality of It includes a dog abutment fixing ball and a fixed ring with one side cut off, and the abutment coupling part body is formed with a plurality of abutment fixing ball holes formed to gradually decrease in radius toward the inner direction. Abutment fixing ball holes are formed to correspond to the abutment fixing balls, respectively, and the abutment fixing balls are accommodated in the abutment fixing ball holes, and the fixing ring includes a plurality of fish in which the abutment fixing balls are accommodated. Disclosed is an implant-coupled prosthesis that is easy to perform and correct, characterized in that it is formed outside the abutment fixing ball hole, and when combined with the abutment, the abutment fixing ball is fixed to the ball seating portion.

However, in the case of the dental implant as described above, only the ball and the ball seat corresponding to the ball are disclosed at the joint fixing portion of the implant fixture or the abutment and the crown, and proper elastic coupling is not considered, and thus the crown is not considered. There was a problem in that the recombination of the crown was not easy because the coupling portion such as the ball was damaged.

Patent Document 1: Republic of Korea Patent Registration No. 10-1869348 (announced on June 20, 2018) Patent Document 2: Republic of Korea Patent Registration No. 10-1633258 (Announcement on June 27, 2016)

As one of the implant fixation body, integral abutment and abutment and elastic coupling is applied to the coupling part of the crown, when the crown is additionally corrected or replaced, the crown does not damage the coupling part, and the implant fixation body, integral abutment And it is intended to provide a dental implant that can be more quickly and easily detached from one of the abutments.

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

Disclosed is, an implant fixing body provided with a fixture portion which is fixed to the alveolar bone and fixed to the upper side, and an elastic bushing coupling groove formed in the upper circumference, and elastically elastic in the radial direction around the circumference of the implant fixing body. The provided slit is spaced apart, an elastic bushing in which an elastic coupling protrusion is formed between the slits, and a detachable coupling groove formed by being fitted into the implant fixing body to which the elastic bushing is coupled is formed on the lower side thereof, and the detachable coupling groove is formed in the A dental implant for easy attachment and detachment of a crown including a crown cap in which the engaging step of the elastic coupling protrusion of the elastic bushing is detachably coupled is radially outwardly formed and the crown is integrally formed on the outside. .

In addition, the disclosed contents are an integral abutment that is fixed to the alveolar bone and is formed with a fastening hole, a fastening bolt fixed to the fixture is integrally projected on the lower side, and an elastic bushing coupling groove is embedded around the upper side. An elastic bushing coupled to the elastic bushing coupling groove of the integral abutment and providing a slit that provides elasticity in the radial direction around the circumference, and an elastic bushing in which elastic coupling protrusions are formed between the slits, and the elastic bushing coupled to the inner lower side. Detachable coupling grooves that are fitted and coupled to the integral abutment are formed, and in the detachable coupling grooves, a locking step in which the elastic coupling protrusions of the elastic bushing are detachably coupled is embedded in the radially outer side, and the crown is integrally formed on the outside. A dental implant for easy attachment and detachment of a crown including a crown cap is presented as another embodiment.

In addition, the disclosed contents are a fixture that is fixed to the alveolar bone and formed with a fastening hole, an abutment through which a fastening bolt insertion hole is formed in the longitudinal direction, and an elastic bushing coupling groove is formed around the upper side, and a fastening bolt of the abutment A fastening bolt which presses and secures the abutment to the fixture while passing through the insertion hole and being fastened to the fastening hole of the fixture, and is inserted into and fixed to the elastic bushing coupling groove of the abutment and provides elasticity in the radial direction around the circumference. The slits are spaced apart and an elastic bushing is formed between the slits and an elastic coupling protrusion is formed, and a detachable coupling groove is formed in the elastic bushing to be coupled to the abutment to which the elastic bushing is coupled, and the elastic bushing is located in the detachable coupling groove. Another embodiment of the present invention is to provide a dental implant for easy attachment and detachment of a crown including a crown cap in which the engaging step of the elastic coupling protrusion is detachably coupled to the outside in the radial direction and the crown is integrally formed on the outside.

According to a preferred feature of the disclosed content, the outer end of the elastic coupling protrusion of the elastic bushing extends downward and has a shape extending vertically downward.

The dental implant for easy attachment and detachment of the crown according to the disclosed content includes an implant fixing body, an integral abutment, and an elastic bushing interposed on a coupling portion of the crown cap with one of the abutment and the abutment. It is resiliently coupled to one of the abutment and abutment, but as it is configured to be detachable only by a force of a certain size or more, the crown cap, in which the crown is integrally formed, without damage to the coupling portion, implant fixture, integral abutment and abutment There is an advantage that can be easily detached from one of the butts.

In addition, the dental implant for easy attachment and detachment of the crown according to the disclosed contents, as the outer end of the elastic coupling protrusion of the elastic bushing extends downward and has a shape extending vertically downward, downward coupling of the crown cap is made easily. However, there is an advantage that the crown cap can be separated only when a force of a predetermined size or more is applied in the upper direction during the additional correction or replacement of the crown.

The effects of the present invention are not limited to the effects mentioned above, and other effects 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 dental implant for easy attachment and detachment of a crown according to an embodiment of the disclosed subject matter.
Figure 2 is an exploded perspective view of a dental implant for easy attachment and detachment of the crown according to an embodiment of the disclosed subject matter.
Figure 3 is a procedure of the dental implant is easy to attach and detach the crown according to an embodiment of the disclosed content.
4 is a perspective view of a dental implant for easy attachment and detachment of a crown according to another embodiment of the disclosed subject matter.
Figure 5 is an exploded perspective view of a dental implant for easy attachment and detachment of the crown according to another embodiment of the disclosed subject matter.
Figure 6 is a procedure of the dental implant is easy to attach and detach the crown according to another embodiment of the disclosed content.
7 is a perspective view of a dental implant for easy crown removal according to another embodiment of the disclosed subject matter.
8 is an exploded perspective view of a dental implant for easy attachment and detachment of a crown according to another embodiment of the disclosed subject matter.
9 is an exploded perspective view of a dental implant for easy attachment and detachment of a crown according to another embodiment of the disclosed subject matter including an inclined abutment.
10 is a procedure of the dental implant is easy to attach and detach the crown according to another embodiment of the disclosed content.

Hereinafter, with reference to the accompanying drawings looks at with respect to the configuration and effect of the preferred embodiment. For reference, in the following drawings, 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 components throughout the specification, and reference numerals for the same components in individual drawings will be omitted.

1 is a perspective view of a dental implant with easy attachment and detachment of a crown according to an embodiment of the disclosed subject matter, and FIG. 2 is an exploded perspective view of a dental implant with easy attachment and detachment of a crown according to an embodiment of the disclosed subject matter, FIG. It is a surgical flow chart of the dental implant is easy to attach and detach the crown according to an embodiment of the disclosed content.

The dental implant for easy attachment and detachment of the crown according to an embodiment of the disclosed contents, as shown in FIGS. 1 to 3, is provided with a fixture 11 which is fixed to the alveolar bone in the lower side and an elastic bushing coupling in the upper circumference. The implant fixture 10 in which the groove 13 is formed and the slit 23 coupled to the elastic bushing coupling groove 13 of the implant fixture 10 and providing elasticity in the radial direction around the circumference are formed apart Between the slits 23, an elastic bushing 20 in which an elastic coupling protrusion 25 is formed, and an inner and lower side of the elastic bushing 20 are fitted into and coupled to the implant fixing body 10 to which the elastic bushing 20 is coupled, and the detachable coupling groove 31 is coupled. The engaging step (33) of the elastic coupling protrusion (25) of the elastic bushing (20) is detachably formed in the detachable coupling groove (31). Includes a crown cap 30 formed of.

Here, the implant fixture 10 is a fixture portion and the abutment is formed integrally to form an abutment for the connection of the artificial roots and crowns that are embedded and fixed to the alveolar bone at the same time, the lower portion of the fixture portion to be fixed in the alveolar bone (11) is provided and an elastic bushing coupling groove 13 is formed around the upper circumference of the elastic bushing 20.

The implant fixture 10 is the same as a conventional implant fixture in which the fixture and the abutment are integrally formed, except that the elastic bushing coupling groove 13 is formed, so that no further details are given here for simplification of the specification. Will be omitted.

The elastic bushing 20 is coupled to the elastic bushing coupling groove 13 of the implant fixture 10 described above. The elastic bushing 20 is a component member that forms elasticity so that the crown cap 30 is detachably coupled to the upper end of the implant fixture 10, and is formed in a cylindrical shape through which the central hole 21 is formed. At this time, the central hole 21 of the elastic bushing 20 preferably has a shape that increases in diameter toward the lower portion.

The elastic bushing 20 is formed with a slit 23 that provides elasticity in the radial direction. The slits 23 are spaced apart at regular angular intervals, such as 90 degrees, along the circumference of the elastic bushing 20 to form from the top to the bottom of the elastic bushing 20.

Between the slits 23 and the slits 23 of the elastic bushing 20, the elastic coupling protrusions 25 protruding outward from the upper end of the implant fixing body 10 so that the crown cap 30 is detachably coupled are the same circle. It is formed to project outward in the radial direction.

In addition, as the outer end of the elastic coupling protrusion 25 of the elastic bushing 20 extends downward and has a shape extending vertically toward the lower portion, the crown cap 30 is downward to the upper side of the implant fixture 10. When combined, it is easily coupled by the downwardly inclined portion of the elastic coupling protrusion 25, but when it is desired to separate the crown cap 30 from the implant fixture 10 for further correction or replacement of the crown, the elastic coupling protrusion As the elastic locking jaw is formed by the vertical extension portion of (25), the crown cap 30 can be separated only when a force of a predetermined size or more is applied in the upper direction.

The crown cap 30 is detachably coupled to the implant fixing body 10 to which the above-described elastic bushing 20 is coupled. Crown cap 30 is that the crown forming the artificial tooth is formed integrally, is detachably coupled to the implant fixture 10 by the elastic coupling protrusion 25 of the elastic bushing 20.

The inside of the crown cap 30 is formed with a detachable coupling groove 31 that is fitted into the implant fixing body 10 to which the elastic bushing 20 is coupled, and the detachable coupling groove 31 is an implant fixing body 10 It is formed to taper toward the upper portion so as to correspond to the upper outer circumferential surface of, and the lower side of the detachable coupling groove 31 is irreversibly coupled to the upper side of the implant fixing body 10.

In the detachable coupling groove 31, a locking step 33 to which the elastic coupling protrusion 25 of the elastic bushing 20 is detachably coupled is formed inward in the radial direction.

In addition, a crown removal hole 35 is formed on the upper side of the crown cap 30 in communication with the detachable coupling groove 31. Crown removal hole 35 is closed, for example, through filling of the resin after the coupling of the crown cap 30, and when the crown cap 30 is separated, for example, through the removal of the resin, the crown cap ( 30) to form a part into which the tool for separation is fitted.

In addition, the packing ring 40 is coupled to the upper circumference of the implant fixture 10 for the tight coupling of the crown cap 30 to the implant fixture 10. To this end, a packing ring engaging groove 15 is formed around the upper circumference of the implant fixing body 10, and a packing ring groove 37 into which the packing ring 40 is inserted in the detachable coupling groove 31 of the crown cap 30 is provided. It is formed in the radial direction.

Hereinafter, with reference to FIGS. 1 to 3, the procedure and working relationship of the dental implant for easy attachment and detachment of the crown according to an embodiment of the disclosed content will be described.

First, as shown in Figure 3, in the state that the fixture portion 11 of the implant fixture 10 is buried and fixed in the alveolar bone, the packing ring 40 is the packing ring coupling groove 15 of the implant fixture 10 First, the elastic bushing 20 is fitted into the elastic bushing coupling groove 13 of the implant fixture 10.

Then, when the crown (30) in which a crown (not shown) is integrally formed on the implant fixing body 10 to which the elastic bushing 20 is coupled is pressurized downward, the detachable coupling groove of the crown cap 30 is inserted. As the elastic coupling protrusion 25 of the elastic bushing 20 is coupled to the locking step 33 of 31, the coupling of the crown cap 30 is completed, and the crown removal hole 35 of the crown cap 30 is resind. It is closed through charging.

Afterwards, when additional correction or replacement of the crown is required, the crown removal hole 35 is opened through resin removal, and a tool for separation of the crown cap 30 is inserted into the crown removal hole 35 to have a certain size. When the above force is applied, the elastic coupling protrusions 25 of the elastic bushing 20 come into a radially inward direction, and the locking step 33 of the crown cap 30 is elastically engaging protrusions 25 of the elastic bushing 20 The crown cap 30 may be detached from the crown, and the crown cap 30 may be re-combined by additional correction or replacement of the crown through the above-described coupling process.

The dental implant for easy attachment and detachment of the crown according to an embodiment of the disclosed contents, the elastic bushing 20 is interposed at the coupling portion between the implant fixture 10 and the crown cap 30, and the crown cap 30 is implanted. The crown cap 30 in which the crown is integrally formed is easily detachable without damage to the implant fixing body 10 as it is elastically coupled to the stagnant body 10 but configured to be detachable only by a force of a predetermined size or more. Can be.

In particular, as the outer end of the elastic coupling protrusion 25 of the elastic bushing 20 extends downward and has a shape extending vertically toward the lower side, the downward coupling of the crown cap 30 is easily made, but additional correction of the crown is made. The crown cap 30 is separated only when a force of a predetermined size or more is applied in the upper direction at the time of the procedure or exchange, and in the normal authoring environment, the crown cap 30 cannot be arbitrarily separated.

4 is a perspective view of a dental implant that is easy to attach and detach a crown according to another embodiment of the disclosed subject matter, and FIG. 5 is an exploded perspective view of a dental implant that is easy to attach and detach a crown according to another embodiment of the disclosed subject matter, and FIG. A flow chart of a dental implant for easy attachment and detachment of a crown according to another embodiment of the disclosed subject matter.

The dental implant for easy attachment and detachment of the crown according to another embodiment of the disclosed subject matter is fixed to the alveolar bone and fixed to the alveolar bone and a fixture 10a in which a fastening hole 11a is formed, as shown in FIGS. A fastening bolt (11b) fixed to (10a) is formed integrally protruded and the elastic bushing coupling of the integral abutment (10b) is formed with an elastic bushing coupling groove (13) around the upper side, and the integral abutment (10b) An elastic bushing (20) that is coupled to the groove (13) and provides a radially elastic slit (23) spaced around the circumference and an elastic coupling protrusion (35) between the slits (23), and elasticity inside Detachable coupling grooves 31 are formed to be fitted and coupled to the integral abutment 10b to which the bushings 20 are coupled, and the elastic coupling protrusions 25 of the elastic bushing 20 are detachable within the detachable coupling grooves 31. The locking step 33 is coupled to the radially outwardly embedded and includes a crown cap 30 on which the crown (not shown) is integrally formed.

Here, the fixture (10a) corresponds to the artificial root to be buried in the alveolar bone, the outer peripheral surface is formed with a screw thread to be buried in the alveolar bone, the fastening hole for fastening the integral abutment (10b) on the upper surface ( 11a) is formed.

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

An integral abutment 10b is coupled to the above-described fixture 10a. The integral abutment 10b is a connecting member connecting the fixture 10a embedded in the alveolar bone and the crown cap 30 corresponding to the artificial tooth, and the lower side is fastened and fixed to the fixture 10a and the upper side is a crown cap ( 30) is detachably coupled.

On the lower side of the integral abutment 10b, a fastening bolt 11b fastened to the fastening hole 11a of the fixture 10a is integrally formed. In addition, an elastic bushing coupling groove 13 to which the elastic bushing 20 is coupled is formed around the upper circumference of the integral abutment 10b.

Since the integral abutment 10b is the same as a conventional integral abutment in which the fastening bolt is integrally formed except that the elastic bushing coupling groove 13 is formed, herein, for further simplification of the specification, It will be omitted.

The elastic bushing 20 is coupled to the elastic bushing coupling groove 13 of the above-described integral abutment 10b. The elastic bushing 20 is a component member that forms elasticity so that the crown cap 30 is detachably coupled to the upper side of the integral abutment 10b, and is formed in a cylindrical shape through which the central hole 31 is formed. . At this time, the central hole 21 of the elastic bushing 20 preferably has a shape that increases in diameter toward the lower portion.

The elastic bushing 20 is formed with a slit 23 that provides elasticity in the radial direction. The slits 23 are spaced apart at regular angular intervals, such as 90 degrees, along the circumference of the elastic bushing 20 to form from the top to the bottom of the elastic bushing 20.

Between the slits 23 and the slits 23 of the elastic bushing 20, the elastic coupling protrusions 25 protruding outward from the upper end of the implant fixing body 10 so that the crown cap 30 is detachably coupled are the same circle. It is formed to project outward in the radial direction.

In addition, as the outer end of the elastic coupling protrusion 25 of the elastic bushing 20 extends downward and has a shape extending vertically downward, the crown cap 30 is downwardly coupled to the integral abutment 10b. If possible, it is easily coupled by the downwardly inclined portion of the elastic coupling protrusion 25, but in order to separate the crown cap 30 from the integral abutment 10b for further correction or replacement of the crown, the elastic coupling protrusion As the elastic locking jaw is formed by the vertical extension portion of (25), the crown cap 30 can be separated only when a force of a predetermined size or more is applied in the upper direction.

The crown cap 30 is detachably coupled to the integral abutment 10b to which the above-described elastic bushing 20 is coupled. Crown cap 30 is a crown forming an artificial tooth is integrally formed, is detachably coupled to the integral abutment 10b by the elastic coupling protrusion 25 of the elastic bushing 20.

The inside of the crown cap 30 is formed with a detachable coupling groove 31 that is fitted and coupled to the upper side of the integral abutment 10b to which the elastic bushing 20 is coupled, which detachable coupling groove 31 is an integral abutment. It is formed to taper toward the upper portion so as to correspond to the upper outer circumferential surface of the treatment 10b, and the lower side of the detachable coupling groove 31 is rotatably coupled to the upper side of the integral abutment 10b.

In the detachable coupling groove 31, a locking step 33 to which the elastic coupling protrusion 25 of the elastic bushing 20 is detachably coupled is formed inward in the radial direction.

In addition, a crown removal hole 35 is formed on the upper side of the crown cap 30 in communication with the detachable coupling groove 31. Crown removal hole 35 is closed, for example, through filling of the resin after the coupling of the crown cap 30, and when the crown cap 30 is separated, for example, through the removal of the resin, the crown cap ( 30) to form a part into which the tool for separation is fitted.

In addition, the packing ring 40 is coupled to the upper circumference of the integral abutment 10b for the airtight coupling of the crown cap 30 to the integral abutment 10b. To this end, a packing ring coupling groove 15 is formed around the upper circumference of the integral abutment 10b and a packing ring groove 37 into which the packing ring 40 is inserted in the detachable coupling groove 31 of the crown cap 30. It is formed in the radial direction.

Hereinafter, with reference to FIGS. 4 to 6, the procedure and operation relationship of the dental implant for easy attachment and detachment of the crown according to another embodiment of the disclosed contents will be described.

First, as shown in FIG. 6, after the fixture 10a is buried and fixed in the alveolar bone, the fastening bolt 11b of the integral abutment 10b is fastened and fixed to the fastening hole 11a of the fixture 10a. , Insert the packing ring 40 into the packing ring coupling groove 15 of the integral abutment 10b, and fit the elastic bushing 20 into the elastic bushing coupling groove 13 of the integral abutment 10b Order.

Then, when the crown (30) in which the crown (not shown) is integrally formed into the integral abutment (10b) to which the elastic bushing (20) is coupled is pressed downwardly, the crown cap (30) is detached and attached. The coupling of the crown cap 30 is completed while the elastic coupling projection 25 of the elastic bushing 20 is coupled to the locking step 33 of the groove 31, and the crown removal hole 35 of the crown cap 30 is closed. Closed through resin filling.

Afterwards, when additional correction or replacement of the crown is required, the crown removal hole 35 is opened through resin removal, and a tool for separation of the crown cap 30 is inserted into the crown removal hole 35 to have a certain size. When the above force is applied, the elastic coupling protrusions 25 of the elastic bushing 20 come into a radially inward direction, and the locking step 33 of the crown cap 30 is elastically engaging protrusions 25 of the elastic bushing 20 The crown cap 30 may be detached from the crown, and the crown cap 30 may be re-combined by additional correction or replacement of the crown through the above-described coupling process.

The dental implant for easy attachment and detachment of the crown according to another embodiment of the disclosed subject matter is provided with an elastic bushing 20 interposed in the coupling portion of the integral abutment 10b and the crown cap 30, so that the crown cap 30 is integrated. The crown cap 30 in which the crown is integrally formed is capable of being elastically coupled to the abutment 10b, but detachable only by a force of a certain size or more, without damaging the coupling portion with respect to the integral abutment 10b. It can be easily detached.

In particular, as the outer end of the elastic coupling protrusion 25 of the elastic bushing 20 extends downward and has a shape extending vertically toward the lower side, the downward coupling of the crown cap 30 is easily made, but additional correction of the crown is made. The crown cap 30 is separated only when a force of a predetermined size or more is applied in the upper direction at the time of the procedure or exchange, and in the normal authoring environment, the crown cap 30 cannot be arbitrarily separated.

7 is a perspective view of a dental implant with easy attachment and detachment of a crown according to another embodiment of the disclosed subject matter, and FIG. 8 is an exploded perspective view of a dental implant with easy attachment and detachment of a crown according to another embodiment of the disclosed subject matter; 9 is an exploded perspective view of a dental implant for easy attachment and detachment of a crown according to another embodiment of the disclosed content including an inclined abutment, and FIG. 10 is a dental for easy attachment and detachment of a crown according to another embodiment of the disclosed content This is an implant procedure.

The dental implant for easy attachment and detachment of a crown according to another embodiment of the disclosed subject matter is fixed to the alveolar bone and fixed to the alveolar bone and a fixture 10a in which a fastening hole 11a is formed, as shown in FIGS. Abutment (10c, 10c') through which the fastening bolt insertion hole (11c) is formed and an elastic bushing coupling groove (13) is formed around the upper side, and the fastening bolt insertion of the abutment (10c, 10c') The fastening bolt 10c and the abutment 10c that penetrate the ball 11c and fasten and secure the abutment 10c, 10c' to the fixture 10a while being fastened to the fastening hole 11a of the fixture 10a , 10c'), an elastic bushing that is coupled to the elastic bushing coupling groove 13 and provides a radially elastic slit 23 around the circumference, and an elastic coupling protrusion 35 is formed between the slits 23. (20), the inside of the elastic bushing (20) is coupled to the abutment (10c, 10c') is coupled to the detachable coupling groove (31) is formed is coupled to the detachable coupling groove (31) in the elastic bushing (20) A locking step (33) to which the elastic coupling protrusion (25) is detachably coupled is embedded in the radially outer side, and includes a crown cap (30) in which a crown (not shown) is integrally formed.

Here, the fixture 10a corresponds to an artificial root that is embedded and fixed to the alveolar bone, and a thread is formed to be embedded in the alveolar bone on the outer circumferential surface, and is fastened to secure the abutment 10c, 10c' on the upper surface. The ball 11a is formed.

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

The abutments 10c and 10c' are coupled to the above-described fixture 10a. The abutment (10c, 10c') is a connecting member that connects the fixture (10a) embedded in the alveolar bone and the crown cap (30) corresponding to the artificial tooth with each other, and the lower side is fixed to the fixture (10a) and the crown on the upper side. The cap 30 is detachably coupled.

Also, inside the abutments 10c and 10c', a fastening bolt through hole 11c for through coupling of the fastening bolt 10d is formed through in the longitudinal direction. In addition, an elastic bushing coupling groove 13 to which the elastic bushing 20 is coupled is formed at the upper circumference of the abutments 10c and 10c'.

The above-described abutments 10c, 10c' may be formed in a vertically extending straight shape (corresponding to 10c) as shown in FIGS. 7, 8, and 10, and the upper portion as shown in FIG. It may be formed in an inclined bent shape (corresponding to 10c') that extends vertically and bends inclinedly.

Since the abutments 10c and 10c' are the same as a conventional abutment or a conventional inclined abutment in which the fastening bolt is integrally formed, except that the elastic bushing coupling groove 13 is formed, here, For the sake of simplicity, further detailed description will be omitted.

Also, the abutments 10c and 10c' are inserted into the fixture 10a by the fastening bolt 10d which is inserted into the fastening bolt 11a of the fixture 10a and fixed to the fastening hole 11a of the fixture 10a. It is fixed under pressure. At this time, the fastening bolt (10d) may be inserted from the top of the abutment (10c, 10c') from the bottom, in some cases under the interposition of an elastic bushing (not shown) coupled in the fastening bolt through hole (11c) After being inserted from the bottom of the abutment (10c, 10c') to the top, it can be fixed to the fastening hole (11a) while being moved back to the bottom.

The elastic bushing 20 is coupled to the elastic bushing coupling groove 13 of the above-described abutments 10c and 10c'. The elastic bushing 20 is a component member that forms elasticity so that the crown cap 30 is detachably coupled to the upper side of the abutments 10c and 10c', and has a cylindrical shape through which the central hole 31 is formed. Is formed. At this time, the central hole 21 of the elastic bushing 20 preferably has a shape that increases in diameter toward the lower portion.

The elastic bushing 20 is formed with a slit 23 that provides elasticity in the radial direction. The slits 23 are spaced apart at regular angular intervals, such as 90 degrees, along the circumference of the elastic bushing 20 to form from the top to the bottom of the elastic bushing 20.

Between the slits 23 and the slits 23 of the elastic bushing 20, the elastic coupling protrusions 25 protruding outward from the upper end of the implant fixing body 10 so that the crown cap 30 is detachably coupled are the same circle. It is formed to project outward in the radial direction.

In addition, as the outer end of the elastic coupling protrusion 25 of the elastic bushing 20 extends downward and has a shape extending vertically toward the bottom, the crown cap 30 is attached to the abutments 10c and 10c'. In the case of downward coupling, it is easily coupled by the downward inclined portion of the elastic coupling protrusion 25, but when the crown cap 30 is to be separated from the abutments 10c and 10c' for additional correction or replacement of the crown As the elastic locking jaw is formed by the vertical extension portion of the elastic coupling protrusion 25, the crown cap 30 can be separated only when a force of a predetermined size or more is applied in the upper direction.

Crown cap 30 is detachably coupled to the abutments 10c and 10c' to which the above-described elastic bushing 20 is coupled. Crown cap 30 is a crown forming an artificial tooth is integrally formed, it is detachably coupled to the abutment (10c, 10c') by the elastic coupling protrusion 25 of the elastic bushing (20).

The inside of the crown cap 30 is formed with a detachable coupling groove 31 that is fitted and coupled to the upper side of the abutments 10c and 10c' to which the elastic bushing 20 is coupled. The taper is formed to taper toward the upper portion to correspond to the upper outer circumferential surface of the abutments 10c and 10c', and the lower side of the detachable coupling groove 31 is irreversibly coupled to the upper side of the abutments 10c and 10c'.

In the detachable coupling groove 31, a locking step 33 to which the elastic coupling protrusion 25 of the elastic bushing 20 is detachably coupled is formed inward in the radial direction.

In addition, a crown removal hole 35 is formed on the upper side of the crown cap 30 in communication with the detachable coupling groove 31. Crown removal hole 35 is closed, for example, through filling of the resin after the coupling of the crown cap 30, and when the crown cap 30 is separated, for example, through the removal of the resin, the crown cap ( 30) to form a part into which the tool for separation is fitted.

In addition, the packing ring 40 is coupled to the upper circumference of the abutment 10c, 10c' for the tight coupling of the crown cap 30 to the abutment 10c, 10c'. To this end, a packing ring coupling groove 15 is formed around the upper circumference of the abutments 10c and 10c', and a packing ring groove into which the packing ring 40 is inserted in the detachable coupling groove 31 of the crown cap 30 ( 37) is impregnated in the radial direction.

Hereinafter, with reference to FIGS. 7 to 10, the procedure and working relationship of the dental implant for easy attachment and detachment of the crown according to another embodiment of the disclosed content will be described.

First, as shown in FIG. 10, in a state where the fixture 10a is buried and fixed in the alveolar bone, the lower ends of the abutments 10c and 10c' are inserted into the upper side of the fixture 10a and the packing ring 40 is lifted. After inserting into the packing ring coupling grooves 15 of the butts 10c, 10c', the fastening bolt 11d is fixed through the fastening bolt insertion hole 11c of the abutments 10c, 10c' through the fixture 10a. Fasten to the fastening hole (11a) of the.

The elastic bushing 20 is fitted into the elastic bushing coupling groove 13 of the abutment 10c, 10c', and then the crown (not shown) is attached to the abutment 10c, 10c' to which the elastic bushing 20 is coupled. When) the crown cap 30 integrally formed is pressed and inserted downward, the elastic coupling protrusion 25 of the elastic bushing 20 is attached to the engaging step 33 of the detachable coupling groove 31 of the crown cap 30. ) Is combined, the coupling of the crown cap 30 is completed, and the crown removal hole 35 of the crown cap 30 is closed through resin filling.

Afterwards, when additional correction or replacement of the crown is required, the crown removal hole 35 is opened through resin removal, and a tool for separation of the crown cap 30 is inserted into the crown removal hole 35 to have a certain size. When the above force is applied, the elastic coupling protrusions 25 of the elastic bushing 20 come into a radially inward direction, and the locking step 33 of the crown cap 30 is elastically engaging protrusions 25 of the elastic bushing 20 The crown cap 30 may be detached from the crown, and the crown cap 30 may be re-combined by additional correction or replacement of the crown through the above-described coupling process.

The dental implant for easy attachment and detachment of the crown according to another embodiment of the disclosed subject matter, the elastic bushing 20 is interposed at the coupling portion of the abutment 10c, 10c' and the crown cap 30, and the crown cap 30 ) Is elastically coupled to the abutments (10c, 10c'), but the crown cap 30 is integrally formed with the crown (30c, 10c') as it is configured to be detachable only by a force of a certain size or more. For, it can be easily detached without damaging the joint.

In particular, as the outer end of the elastic coupling protrusion 25 of the elastic bushing 20 extends downward and has a shape extending vertically toward the lower side, the downward coupling of the crown cap 30 is easily made, but additional correction of the crown is made. The crown cap 30 is separated only when a force of a predetermined size or more is applied in the upper direction at the time of the procedure or exchange, and in the normal authoring environment, the crown cap 30 cannot be arbitrarily separated.

The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the embodiments described in the specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and represent all technical spirits of the present invention. It should be understood that there may be various equivalents and modifications that can replace them at the time of application. Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the following claims rather than the detailed description, and the meaning and scope of the claims It should be construed that any altered or modified form derived from the equivalent concept is included in the scope of the present invention.

10: Implant fixture
11: Fixture part
10a: Fixture
11a: Fastener
10b: integral abutment
11b: Fastening bolt part
10c, 10c': Abutment
11c: Fastening bolt insertion hole
10d: Fastening bolt
13: elastic bushing coupling groove
15: packing ring coupling groove
20: elastic bushing
21: Central Ball
23: slit
25: elastic coupling protrusion
30: crown cap
31: elastic coupling groove
33: hanging step
35: crown remover
37: packing ring groove
40: packing ring

Claims (16)

An implant fixture having a fixture portion which is embedded and fixed to the alveolar bone at the lower side and an elastic bushing coupling groove is formed at the upper circumference;
An elastic bushing that is coupled to the elastic bushing coupling groove of the implant fixture and that a slit providing elasticity in the radial direction is spaced around the circumference, and an elastic coupling protrusion is formed between the slits; And
On the lower side of the inside, a detachable coupling groove is formed, which is fitted into and coupled to the implant fixing body to which the elastic bushing is coupled, and a locking step in which the elastic coupling protrusion of the elastic bushing is detachably coupled is formed in the detachable coupling groove inwardly inward. The dental implant is easy to attach and detach the crown including a crown cap on which the crown is integrally formed. The method according to claim 1,
The elastic bushing is formed in a cylindrical shape through which a central hole is formed, but a dental implant with easy crown attachment and detachment is characterized in that the diameter of the central hole increases as it goes downward. The method according to claim 1,
The dental implant is easy to attach and detach the crown, characterized in that the outer end of the elastic coupling protrusion of the elastic bushing extends downward and extends vertically downward. The method according to any one of claims 1 to 3,
A dental implant for easy crown removal, characterized in that a crown removal hole is formed in communication with the detachable coupling groove on an upper side of the crown cap. The method according to any one of claims 1 to 4,
A packing ring coupling groove in which a packing ring is coupled is formed around the upper circumference of the implant fixing body, and a crown ring detachment in which the packing ring groove in which the packing ring is inserted is radially embedded in the detachable coupling groove of the crown cap. This easy dental implant. A fixture in which an alveolar bone is fixed to be buried and a fastening hole is formed;
An integral abutment on which a fastening bolt fixed to the fixture is integrally projected on the lower side and an elastic bushing coupling groove is embedded on the upper circumference;
An elastic bushing coupled to the elastic bushing coupling groove of the integral abutment, the slit providing elasticity in the radial direction around the circumference, and an elastic coupling protrusion formed between the slits; And
On the inner lower side, a detachable coupling groove is formed, which is fitted into and coupled to the integral abutment to which the elastic bushing is coupled, and a locking step in which the elastic coupling protrusion of the elastic bushing is detachably coupled is embedded in the detachable coupling groove in the radially outward direction. A dental implant that is formed and includes a crown cap on which the crown is integrally formed, and the crown is easily detachable. The method according to claim 6,
The elastic bushing is formed in a cylindrical shape through which a central hole is formed, but a dental implant with easy crown attachment and detachment is characterized in that the diameter of the central hole increases as it goes downward. The method according to claim 1,
The dental implant is easy to attach and detach the crown, characterized in that the outer end of the elastic coupling protrusion of the elastic bushing extends downward and extends vertically downward. The method according to any one of claims 6 to 8,
A dental implant for easy crown removal, characterized in that a crown removal hole is formed in communication with the detachable coupling groove on an upper side of the crown cap. The method according to any one of claims 6 to 8,
A packing ring coupling groove in which a packing ring is coupled is formed around the upper circumference of the implant fixing body, and a crown ring detachment in which the packing ring groove in which the packing ring is inserted is radially embedded in the detachable coupling groove of the crown cap. This easy dental implant. A fixture in which an alveolar bone is fixed to be buried and a fastening hole is formed;
An abutment in which a fastening bolt insertion hole is formed through the longitudinal direction and an elastic bushing coupling groove is formed around the upper side;
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;
An elastic bushing that is inserted into and fixed to the elastic bushing coupling groove of the abutment, and a slit providing elasticity in the radial direction is spaced around the circumference, and an elastic coupling protrusion is formed between the slits; And
A detachable coupling groove is formed in the elastic bushing by being fitted to the abutment to which the elastic bushing is coupled, and a locking step in which the elastic coupling protrusion of the elastic bushing is detachably coupled is formed in the detachable coupling groove, and is radially outwardly formed. A dental implant for easy attachment and detachment of a crown including a crown cap on which the crown is integrally formed. In accordance with claim 11,
The abutment is a dental implant that is easy to attach and detach a crown, characterized in that it is a vertically extending straight or a vertically extended and bent and extended obliquely. The method according to claim 11,
The elastic bushing is formed in a cylindrical shape through which a central hole is formed, but a dental implant with easy crown attachment and detachment is characterized in that the diameter of the central hole increases as it goes downward. The method according to claim 11,
The dental implant is easy to attach and detach the crown, characterized in that the outer end of the elastic coupling protrusion of the elastic bushing extends downward and extends vertically downward. The method according to any one of claims 11 to 14,
A dental implant for easy crown removal, characterized in that a crown removal hole is formed in communication with the detachable coupling groove on an upper side of the crown cap. The method according to any one of claims 11 to 14,
A packing ring coupling groove in which a packing ring is coupled is formed around the upper circumference of the implant fixing body, and a crown ring detachment in which the packing ring groove in which the packing ring is inserted is radially embedded in the detachable coupling groove of the crown cap. This easy dental implant.

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