KR20200028219A - Impression coping for implant operration - Google Patents

Abstract

The present invention relates to impression coping for an implant procedure, which can greatly improve the accuracy of impression acquisition due to internal and external gripping forces of an impression material with respect to a coping body regardless of moving characteristics of the impression material. According to an embodiment of the present invention, the impression coping for an implant procedure coupled to a fixture implanted in an alveolar bone for impression acquisition using an impression material, comprises: a fastening unit inserted into and coupled to a fixture; a first body unit formed with an upper portion of the fastening unit to be positioned at a tooth sub-gingival area, and having a first annular groove formed around an outer circumference thereof; a second body unit integrally formed at an upper side of the first body unit to be exposed to an upper portion of a gingiva, having a second annular groove formed at an outer circumference thereof, and having a screw insertion groove into which an impression material is inserted, formed on the center thereof to have an upper portion to be opened; and an impression material insertion groove vertically cut by being hung on the first and second body units.

Description

IMPRESSION COPING FOR IMPLANT OPERRATION

The disclosed content relates to an impression coping for an implant procedure that is coupled to a fixture placed in an alveolar bone to obtain an impression using an impression material.

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, a problem in chewing function is caused, 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 generated 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, a partial denture, or a denture, there is a problem that causes discomfort due to foreign body sensation. Recently, when a tooth is defective, it is almost the same as a natural tooth without damaging surrounding teeth or tissue. Dental implants, which can restore all functions and appearances, are in the spotlight.

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.

After the dental implant is embedded in the alveolar bone, the fixture is fixed to the alveolar bone as the alveolar bone around the fixture is fused and hardened, and then the abutment is attached to the upper portion of the fixture, and the artificial tooth is placed in the abutment. It is made in the form of connecting and fixing the crown corresponding to.

In such an implant procedure, it is most important to make a prosthesis (crown) according to the shape of the subject's teeth to accurately position the missing tooth.

To this end, impressions are made by making the tooth shape of the subject to be used as an impression material to produce an accurate tooth model, and the most accurate prosthesis (crown) is produced using the tooth model produced through this impression acquisition.

In general, impression impression is performed by binding the impression coping to the fixture placed on the alveolar bone, and then, after the impression material is cured, the impression material is cured, the impression material is cured, and then the plaster is poured into the impression material. This is achieved through a series of processes to build and put work models.

Impression coping used to raise impressions is largely classified into a pick-up type and a transfer type.

Pick-up impression coping refers to an impression coping that is embedded in the cured impression material and is separated from the tooth of the operator with the impression material, and transfer-type impression coping is applied to the fixture when the cured impression material is separated from the subject's teeth. Impression coping that remains bound.

Among these, transfer type impression coping is classified into one-piece type impression coping and two-piece type impression coping according to the presence or absence of a guide pin. Here, the one-piece type impression coping refers to an impression coping coupled to the fixture using a screw thread formed at the lower end of the body, and the two-piece type impression coping refers to an impression coping coupled to the fixture using a guide pin provided through the body. .

As an example of the above-described impression coping, the Republic of Korea Patent Publication No. 10-2011-0004551 (2011.01.14. Public) at least one groove is formed along the circumference of the outer circumferential surface and the first body downward from the first body Implant characterized in that it comprises a third body extending and extending radially with respect to the center, the second body is formed, and a third body extending downward from the second body and tapering to decrease the outer diameter toward the lower side. Impression coping for the procedure is disclosed.

As an example of another impression coping, in Korean Patent Publication No. 10-2018-0082158 (published on July 18, 2018), a screw with a thread formed on the outer circumferential surface of the lower portion to be engaged with an implant fixture, and a diameter may decrease as it goes downward. An undercut formed in a multi-stage on the outer circumferential surface of the body so as to be tapered and connected to the upper portion of the screw, one body to which one end is detachably attached to the upper portion of the connection portion, and the body to be fixed to the impression material. Disclosed is an implant assembly including a coping formed of plastic so as to be bent so that there is little interference in the oral cavity.

On the other hand, since the impression material is forced to flow due to its characteristics, there is a certain amount of error even if the impression acquisition is performed accurately, and therefore, when a prosthesis is produced, there is a case that it does not match the tooth shape of the actual subject.

Despite the flow characteristics of the impression material, in the case of conventional impression coping, the impression material is applied so that it only surrounds the outer circumferential surface of the upper body where the actual indentation groove is formed. There was a difficult problem.

Patent Document 1: Republic of Korea Patent Publication No. 10-2011-0004551 (2011.01.14. Public) Patent Document 2: Republic of Korea Patent Publication No. 10-2018-0082158 (released on July 18, 2018)

In spite of the flow characteristics of the impression material, the purpose of this invention is to provide an impression coping for an implant procedure that can significantly improve the accuracy of impression acquisition due to the gripping force of the impression material against the coping body.

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

Disclosed is an implant coping for an implant procedure that is coupled to a fixture placed on an alveolar bone for impression impression using an impression material, the coupling portion inserted into the fixture and integrally formed on the upper portion of the coupling portion and positioned under the subgingival gingiva. A first body portion in which a first annular groove is formed around the outer circumference, and an upper portion of the first body portion, integrally exposed to the gingival upper portion, a second annular groove is formed around the outer circumference, and a screw capable of introducing impression material in the center Impression coping for the implant treatment, characterized in that it comprises a second body portion, the insertion groove is formed to open the upper portion, the second body portion and the impression material insertion groove is formed vertically cut across the outside of the first body portion It is presented as an example.

Also disclosed is an implant coping for an implant procedure that is coupled to a fixture placed in an alveolar bone to obtain an impression using an impression material, a fastening part inserted into the fixture and integrally formed on an upper part of the fastening part to be located subgingivally And a first body portion in which a first annular groove is formed around the outer circumference, and is formed integrally on the upper side of the first body portion, exposed to the gingival upper portion, a second annular groove is formed around the outer circumference, and an impression refill groove in the center Another embodiment of the present invention is to provide an impression coping for implant treatment, characterized in that it comprises a second body portion formed to be open, and an impression retract groove formed vertically across the first and second body portions.

According to a feature of the disclosed content, the impression material insertion groove is formed at a predetermined angular interval between the second body portion and the outer circumference of the first body portion.

According to the impression coping for implant treatment according to embodiments of the disclosed contents, the impression material is simultaneously introduced into the outer circumferential surface and the inside of the first body part exposed to the gingival upper part of the coping body, as well as to the outside of the second body part and the first body part. As it is drawn down to the subgingival through the impression material insertion groove formed vertically across, despite the flow characteristics of the impression material, there is an advantage that the accuracy of impression acquisition is significantly improved due to the internal and external gripping of the impression material against the coping body.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will become apparent to those skilled in the art from the description of the claims.

1 is a perspective view of an implant coping for an implant procedure according to an embodiment of the disclosed subject matter.
Figure 2 is a cross-sectional structure diagram of an impression coping for implant surgery according to an embodiment of the disclosed content.
3 is a front view of an impression coping for implant surgery according to various embodiments of the disclosed subject matter.
Figure 4 is a cross-sectional view of a state of use of the implant coping for the implant procedure according to an embodiment of the disclosed content.
5 is a perspective view of an implant coping for implant treatment according to another embodiment of the disclosed subject matter.
Figure 6 is a cross-sectional view of a state of use of the implant coping for the implant procedure 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 of the disclosed content. For reference, in the 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 an implant coping for an implant procedure according to an embodiment of the disclosed subject matter, and FIG. 2 is a cross-sectional structural view of an implant coping for an implant procedure according to an embodiment of the disclosed subject matter, and an implant according to various embodiments of the disclosed subject matter It is a front view of the impression coping for the procedure.

Impression coping for an implant procedure according to one embodiment of the disclosed content is coupled to the fixture 3 placed in the alveolar bone for impression impression using an impression material, as shown in FIGS. 1 to 3, into the fixture 3 The fastening part 10 which is inserted and coupled, the first body part 20 which is integrally formed on the upper part of the fastening part 10 and located under the gingival and has a first annular groove 21 around the outer periphery, and 1 It is integrally formed on the upper side of the body part 20, exposed to the upper gingival, and the second annular groove 31 is formed around the outer circumference, and the screw insertion groove 33 capable of introducing the impression material in the center is formed to open the upper part. It includes a second body portion 30, and the impression material insertion groove 40 is vertically cut through the outside of the first and second body portion (20, 30).

Here, the fastening part 10 is inserted into the fixture 3 and corresponds to a part that is fastened and fixed. As shown in detail in FIG. 2, the fastening part 10 is integrally formed under the first body part 20 and the fixture 3 ) Is inserted through the insert body 11 and the screw insertion groove 33, which is inserted into the non-rotatably, the second body portion 30 and the insert body 11 are sequentially inserted into the fixture 3 while being fastened into the fixture 3 It includes a fastening screw (13) for fastening (11) to the fixture (3).

The lower side of the insert body 11 is formed in a polygonal column shape to prevent rotation, and the upper side of the insert body 11 may be formed in a conical shape for pressurization according to the fastening of the fastening screw 13.

In addition, the second body portion 30 so that the fastening screw 13 inserted through the screw insertion groove 33 may sequentially pass through the second body portion 30 and the insert body 11 and be fastened into the fixture 3. ), A fastening hole 35 communicating with the screw insertion groove 33 is formed through, and a fastening hole 15 communicating with the fastening hole 35 is formed through the insert body 31.

The first body portion 20 is integrally formed on the upper portion of the fastening portion 10 described above. The first body portion 20 is subgingival, that is, corresponds to a body portion in a portion located in the gum, and a first annular groove 21 in which an impression material can be filled is formed around the outer circumference.

The first body portion 20 has a shape in which the diameter decreases as it goes down to the bottom, and in particular, a vertical length of 2 to 6 mm, in particular to correspond to the subgingival insertion depth of the fixture 3, as shown in FIG. It is preferred to have a vertical length of 2 mm, 4 mm or 6 mm.

In addition, a second body portion 30 is integrally formed on the upper side of the first body portion 20 described above. The second body portion 30 corresponds to the gingiva, that is, the body portion exposed to the upper part of the gum, and a second annular groove 31 is formed around which the impression material can be filled around the outer periphery, and the fastening screw 13 is inserted in the center. For the screw insertion groove 33 is formed to a certain depth.

The screw insertion groove 33 serves to enable the insertion of the fastening screw 13, but also serves to allow the inner gripping force of the impression material to the coping body to be generated by forming a filling space capable of introducing the impression material 5 Also. In addition, the screw insertion groove 33 forms an impression material injection space that induces that the impression material is first poured and flows to the outside.

The second body portion 30 has a shape in which the diameter increases as it goes toward the lower portion, and it is particularly preferable to have a vertical length of 4 mm to correspond to the height of the impression material, as shown in FIG. 3. In this case, the position of the fixture 3 can be confirmed from the outside through the second body portion 30 having a vertical length corresponding to the height of the impression material.

The impression material insertion groove 40 is vertically cut through the outer sides of the first and second body parts 20 and 30 described above. Impression retract groove 40 is a first body portion 30 located under the gingival as well as the second annular groove 31 of the second body portion 30 exposed to the upper gingival upon impression impression using the impression material It forms a kind of impression material inlet passage leading to be introduced into the first annular groove (33).

The impression retracting grooves 40 are preferably formed one at every angular interval around the outer circumferences of the first and second body portions 20 and 30, particularly the outer sides of the first and second body portions 20 and 30. It is preferable that a total of three is formed, one per 120 degree angular interval.

4 is a cross-sectional view of a state of use of an implant coping for an implant procedure according to an embodiment of the disclosed subject matter. Hereinafter, the entire operation of the implant coping for the implant procedure according to an embodiment of the disclosed contents will be described with reference to FIGS. 1 to 4 as follows:

In the case of the implant coping for an implant procedure according to an embodiment of the disclosed content, a first annular groove 21 is formed around the outer periphery of the first body portion 20 located under the gingiva, and the second exposed on the upper gingival A second annular groove 31 is formed around the outer circumference of the body portion 30, and at the same time, a screw insertion groove 33 capable of introducing the impression material 5 is formed in the center, and the first and second body portions 20, 30 are formed. ) Over the outside of the impression material insertion groove 40 is formed in a structure that is vertically cut.

Therefore, if the impression material 5 is poured through the screw insertion groove 33 of the second body portion 30 in the state where the implant coping for the implant procedure according to the embodiment of the disclosed content is coupled to the fixture 3, the impression material ( 5) After filling the screw insertion groove (33) and overflowing to the outside while surrounding the outside of the second body portion (30), the impression material vertically cut through the outside of the first and second body portions (20, 30) Through the inlet groove 40 is surrounded to the outside of the first body portion 20 located below the gingiva.

In the case of the impression coping for implant treatment according to an embodiment of the disclosed content, the impression material 5 is not only inside the second body portion 30, but also on the outer circumferential surface of the second body portion 30 exposed to the gingival upper part of the coping body. The first not only is filled in the corresponding screw insertion groove 33, but is located below the gingival through the impression material insertion groove 40 that is vertically cut across the outside of the first and second body parts 20, 30. As it is filled to the outer circumferential surface of the body portion 20, despite the flow characteristics of the impression material 5, the accuracy of the impression acquisition is greatly improved due to the inner and outer gripping of the impression material 5 against the coping body.

5 is a perspective view of an implant coping for implant treatment according to another embodiment of the disclosed subject matter, and FIG. 6 is a cross-sectional view of a state of use of an implant coping for implant procedure according to another embodiment of the disclosed subject matter.

Impression coping for implant treatment according to another embodiment of the disclosed content is coupled to the fixture 3 placed in the alveolar bone for impression impression using the impression material 5, as shown in FIGS. 5 and 6, the fixture ( 3) The first body part (1 ') which is inserted into the fastening part 10' inserted into the inside and is formed integrally on the upper part of the fastening part 10 'and located under the gingival and the first annular groove 21 is formed around the outer periphery ( 20), is formed integrally on the upper side of the first body portion 20 is exposed to the upper gingival, a second annular groove 31 is formed around the outer circumference, and the impression refill groove 33 'is opened in the center. It includes a second body portion 30 is formed, and the impression material insertion groove 40 is formed vertically cut across the outside of the first and second body portion (20, 30).

Impression coping for implant treatment according to another embodiment of the disclosed content is such that the insert body 11 'rotatably inserted into the fixture 3 and the fastening screw 13' fastened into the fixture 3 cannot be separated from each other. As the integrally formed fastening portion 10 'is integrally formed at the lower portion of the first body portion 20, the whole is rotated when fastened to the fixture 3, and the impression material is recharged to the second body portion 30. For the implant treatment according to an embodiment of the above-described disclosure, except that the groove 33 'is formed such that the upper part is opened, but the rotary tool fastening groove 33a is formed on the bottom surface of the impression refill groove 33'. It has the same composition and overall action as impression coping. Therefore, for the same configuration, the same reference numerals as the implant coping for implant treatment according to an embodiment of the disclosed contents are written, but for the sake of simplicity, the detailed description of the same configuration will be omitted.

In the case of the implant coping for implant treatment according to another embodiment of the disclosed content, the first annular groove 21 is formed around the outer periphery of the first body portion 20 located under the gingiva, and the second exposed on the upper gingival A second annular groove 31 is formed around the outer periphery of the body portion 30, and at the same time, an impression refill groove 33 'capable of introducing the impression material 5 is formed in the center, and the first and second body portions 20, 30) is formed in a structure in which the impression material insertion groove 40 is vertically cut through the outside.

Therefore, as shown in Figure 6, the impression material through the impression refilling groove 33 'of the second body portion 30 in the state where the implant coping for the implant procedure according to another embodiment of the disclosed content is coupled to the fixture 3 5) After pouring, the impression material 5 fills the impression refill groove 33 ', overflows to the outside, surrounds the outside of the second body portion 30, and then the first and second body portions 20, 30 It is enclosed to the outside of the second body portion 30 located below the gingival through the impression material insertion groove 40 vertically cut through the outside.

In the case of the impression coping for implant treatment according to another embodiment of the disclosed content, the impression material 5 is not only inside the second body portion 30 but also the outer peripheral surface of the second body portion 30 exposed to the gingival upper part of the coping body. In addition to being filled into the corresponding impression refill groove 33, the first located under the subgingival through the impression retract groove 40 formed vertically cut across the outside of the first and second body parts 20, 30 As it is filled to the outer circumferential surface of the body portion 20, despite the flow characteristics of the impression material 5, the accuracy of the impression acquisition is greatly improved due to the inner and outer gripping of the impression material 5 against the coping body.

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 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 as illustrative and not restrictive in all respects, 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.

3: Fixture
5: impression material
10, 10 ': fastener
11, 11 ': insert body
13, 13 ': Fastening screw
15: fastener
20: first body
21: first annular groove
25: fastener
30: second body portion
31: second annular groove
33: screw insertion groove
33 ': Impression Recharge Home
33a: rotating tool fastening groove
40: impression re-entry home

Claims (11)

In the impression coping for the implant procedure coupled to the fixture placed on the alveolar bone for the impression acquisition using the impression material,
A fastening part inserted and coupled into the fixture;
A first body part integrally formed on the upper portion of the fastening part and positioned under the gingiva and having a first annular groove formed around an outer circumference;
A second body part integrally formed on the upper side of the first body part, exposed to the upper gingival, a second annular groove is formed around the outer circumference, and a screw insertion groove capable of introducing an impression material is opened at the center; And
Impression coping for the implant operation, characterized in that it comprises an impression retract groove formed vertically cut across the first and second body parts. The method according to claim 1,
The fastening part is formed integrally with the lower portion of the first body part and is inserted into the fixture irreversibly and a fastening screw that is inserted through the screw insertion groove and fastened into the fixture while being fastened to the fixture. Including,
Impression coping for implant treatment, characterized in that a fastening hole through which the fastening screw is formed is formed in the second body portion and the insert body. The method according to claim 1,
Impression coping for implant treatment, characterized in that the first body portion has a shape in which the diameter decreases toward the bottom, and the second body portion has a shape in which the diameter increases toward the bottom. The method according to claim 1,
The first body portion has a vertical length of 2 to 6 mm to correspond to the subgingival insertion depth of the fixture, the second body portion has a vertical length of 4 mm so as to correspond to the height of the impression material Implant treatment Coping. The method according to claim 1,
Impression coping grooves for the implant treatment, characterized in that one is formed at a predetermined angular interval around the outer periphery of the second body portion and the first body portion. The method according to claim 5,
Impression material insertion grooves for the implant treatment, characterized in that a total of three is formed for each 120-degree angle intervals on the outer circumference of the second body portion and the first body portion. In the impression coping for the implant procedure coupled to the fixture placed on the alveolar bone for the impression acquisition using the impression material,
A fastening part inserted and coupled into the fixture;
A first body part integrally formed on the upper portion of the fastening part and positioned under the gingiva and having a first annular groove formed around an outer circumference;
A second body part integrally formed on the upper side of the first body part, exposed to the gingival upper part, a second annular groove is formed around the outer circumference, and an impression refilling groove is opened at the center; And
Impression coping for the implant operation, characterized in that it comprises an impression retract groove formed vertically cut across the first and second body parts. The method according to claim 7,
The fastening portion is an implant coping for implant treatment, characterized in that the insert body rotatably inserted into the fixture and the fastening screw fastened into the fixture are integrally formed so that they cannot be separated from each other. The method according to claim 7,
The first body portion has a vertical length of 2 to 6 mm to correspond to the subgingival insertion depth of the fixture, the second body portion has a vertical length of 4 mm so as to correspond to the height of the impression material Implant treatment Coping. The method according to claim 7,
Impression coping grooves for the implant treatment, characterized in that one is formed at a predetermined angular interval around the outer periphery of the second body portion and the first body portion. The method according to claim 10,
Impression material insertion grooves for the implant treatment, characterized in that a total of three is formed for each 120-degree angle intervals on the outer circumference of the second body portion and the first body portion.

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