WO2022071694A1

WO2022071694A1 - Dental implant system and crown prosthesis for dental implant

Info

Publication number: WO2022071694A1
Application number: PCT/KR2021/013086
Authority: WO
Inventors: 김경진
Original assignee: 김경진
Priority date: 2020-09-29
Filing date: 2021-09-27
Publication date: 2022-04-07
Also published as: KR102233682B1

Abstract

The present invention relates to a dental implant system including a crown prosthesis in which a plurality of artificial tooth roots arranged in different directions and a plurality of unit crowns respectively coupled to the plurality of artificial tooth roots are assembled and coupled to each other so that an integrated unit crown can be used even when the directions of the plurality of artificial tooth roots are different from each other. A first unit crown has a first tooth root insertion groove and a first crown coupling portion which are formed along the extension direction of a first artificial tooth root, whereas a second unit crown has a second tooth root insertion groove, which is formed along the extension direction of a second artificial tooth root, and a second crown coupling portion, which extends along the extension direction of the first artificial tooth root in order to be coupled to the first crown coupling portion.

Description

Dental implant systems and crown prostheses for dental implants

The present invention relates to a dental implant system in which a plurality of unit crowns are continuously formed along a tooth tooth, and a plurality of unit crowns are assembled and combined to form a single crown prosthesis.

A dental implant is an artificial tooth structure formed by implanting an artificial tooth root at a site where teeth have been partially or completely lost, adhering to the alveolar bone, and fixing a dental prosthesis (crown) to the artificial tooth root, or such a dental procedure means the way

In general, implants include a fixture made of titanium, an abutment fixed on the fixture, an abutment screw that fixes the abutment to the fixture, and an abutment fixed to the abutment. It consists of a crown as an artificial tooth or a prosthesis or crown.

On the other hand, most of the dental implants currently used are detachable implants that are manufactured after the fixture and the abutment are separated and then assembled.

In the above and below, the term "artificial tooth root" includes not only a form in which a fixture and an abutment are assembled, but also a form in which the fixture and the abutment are integrally formed, and is simply referred to as an artificial tooth root in the following description and drawings.

In a dental implant, one crown is jointly installed on one artificial tooth root by means of dental cement. To this end, a root insertion groove is formed in the lower portion of the crown.

Meanwhile, when a plurality of artificial tooth roots are implanted in the alveolar bone along the direction of the teeth, a single crown prosthesis in which a plurality of unit crowns are continuously formed along the teeth (hereinafter referred to as “integrated crown prosthesis”) is used.

That is, a plurality of artificial tooth roots are combined with one integral crown prosthesis.

Compared to the method in which each crown is individually installed for each artificial tooth root in this way, since the integrated crown prosthesis is supported by a plurality of artificial tooth roots, it is possible to distribute the shock received from the outside or to improve the bearing capacity of the integrated crown prosthesis. there is very preferred

1 is a state in which two artificial tooth roots 10 are implanted in the alveolar bone 1, and one integral crown prosthesis 20 in which two unit crowns 21 are continuously formed along the dentition is placed on the artificial root 10. It shows the installed state.

In each of the unit crowns 21 of the integral crown prosthesis 20, the upper end of the corresponding artificial tooth root 10 is inserted and a tooth root insertion groove 21a is formed for bonding by dental cement or the like.

The structure of FIG. 1 as described above is the structure of the most ideal dental implant desired in dentistry.

Meanwhile, in FIG. 1 , the extension directions of the two root insertion grooves 21a are parallel to each other.

However, it is difficult for the artificial tooth root 10 to be implanted in the alveolar bone 1 to be installed parallel to the other artificial tooth root 10 . This not only requires the implantation of the artificial tooth root 10 in different directions depending on the state of the alveolar bone 1, but also the artificial tooth root 10 in a state perfectly parallel to the other artificial tooth root 10 during the dentist's procedure. This is due to the fact that it is difficult to implant

Therefore, in reality, as shown in FIG. 2 , in most cases, the two artificial tooth roots 10 are placed in a non-parallel state.

In the case of FIG. 2 , the directions of the two artificial tooth roots 10 are different from each other, so it is impossible to install the integral crown prosthesis 20 thereon.

This is due to the problem that the extension direction of the tooth root insertion groove (21a) and the extension direction of the two artificial tooth roots (10) are different from each other.

Due to this problem, the frequency of use of the integrated artificial tooth root in the dental field is remarkably reduced despite its advantages.

In the case of an assembled artificial tooth root in which the fixture and the abutment are assembled, there is a disadvantage in that bacteria or inflammation is high between the fixture and the abutment. In this case, it has the advantage of being able to fundamentally block the problem of the assembled artificial tooth root.

However, the one-piece artificial tooth root makes it impossible to install the integral crown prosthesis 20 in the same situation as in FIG. 2 . Therefore, an integrated crown prosthesis cannot be used for an integrated artificial root, and a crown must be installed individually for each artificial root.

In addition, in a situation such as FIG. 2 , the assembled artificial tooth root can respond by changing the direction of the abutment with respect to the fixture and installing it, but it is not easy to change and install the abutment in the correct direction.

The present invention has been devised to solve the problems of the prior art as described above, and a plurality of unit crowns are continuously formed along the teeth so that the integrated unit crown can be used even when the directions of a plurality of artificial tooth roots are different from each other. An object of the present invention is to provide a dental implant system in which unit crowns are assembled and combined to form a single crown prosthesis.

In order to solve the above problems, the present invention is to be implanted in the alveolar bone, and a plurality of artificial tooth roots spaced apart from each other in the direction of the teeth and a plurality of unit crowns respectively coupled to the plurality of artificial tooth roots are continuously formed along the teeth. A dental implant comprising a crown prosthesis: The crown prosthesis comprises a first unit crown and a second unit crown that are assembled and coupled to each other; The first unit crown is concave upward along a first direction that is the same as or parallel to the extension direction of the first artificial tooth root from the lower portion so that the upper end of the first artificial tooth root corresponding to the first unit crown is inserted and joined. a first tooth root insertion groove is formed, and a first crown coupling portion extending in the first direction is formed on a side surface facing the second unit crown; The second unit crown is the same as or parallel to the extension direction of the second artificial tooth root from the lower portion so that the upper end of the second artificial tooth root corresponding to the second unit crown is inserted and joined, and a second second direction different from the first direction A second root insertion groove concave upward along the direction is formed, and a second tooth root insertion groove is formed on a side surface facing the first unit crown in a form extending in the first direction to be assembled and coupled with the first crown coupling part. A crown joint is formed; an extension direction of the first artificial tooth root and an extension direction of the second artificial tooth root are the same or not parallel to each other; is characterized by

In the above, the first crown coupling part has a cross-sectional structure in the form of a coupling groove extending in the first direction from the bottom to the middle part in the vertical direction, and the second crown coupling part is to be inserted into the first crown coupling part. It is preferable that the cross-sectional structure in the form of a coupling protrusion extends in the first direction.

In another aspect of the present invention, in the dental implant crown prosthesis in which a plurality of unit crowns are continuously formed along the teeth: the crown prosthesis includes a first unit crown and a second unit crown that are assembled and coupled to each other, ; The first unit crown has a first tooth root insertion groove concavely formed from the bottom to the top in the first direction so as to be inserted and joined to the upper end of the artificial tooth root corresponding to the first unit crown, and the second unit crown A first crown coupling portion extending along the first direction is formed on the side facing toward the; The second unit crown has a second root formed concave upward along a second direction that is the same as or not parallel to the first direction from the lower portion in order to be inserted and joined to the upper end of the artificial tooth root corresponding to the second unit crown. an insertion groove is formed, and a second crown coupling part for being assembled and coupled to the first crown coupling part is formed on a side surface facing the first unit crown and extending in the first direction; is characterized by

As described above, according to the present invention, a plurality of unit crowns are continuously formed along the teeth, so that the integral unit crown can be used even when the directions of the plurality of artificial tooth roots are different from each other, and the plurality of unit crowns are assembled and combined to form one A dental implant system constituting a crown prosthesis is provided.

As described above, the present invention enables the use of an integrated unit crown in an implant system using an integrated artificial tooth root in which the fixture and the abutment are integrated, thereby solving the problems associated with the use of the integrated artificial root.

In addition, the present invention can simplify the overall implant system because the direction of the abutment does not need to be parallel to the other abutments even in the implant system using the assembled artificial tooth root in the form in which the fixture and the abutment are assembled. can

1 and 2 are schematic views of a dental implant system according to the prior art;

3 is a conceptual diagram of a dental implant device according to a first embodiment of the present invention;

4 is a cross-sectional view taken along line A-A of FIG. 3;

5 is an exploded cross-sectional view of FIG. 4;

6 is a conceptual diagram of a dental implant device according to a second embodiment of the present invention;

7 is a conceptual diagram of a dental implant device according to a third embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement them. However, the present invention may be embodied in several different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part "includes" a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated.

Hereinafter, a first embodiment according to the present invention will be described.

3 is a conceptual diagram of a dental implant device according to a first embodiment according to the present invention, FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3, and FIG. 5 is an exploded cross-sectional view of FIG.

A plurality of artificial tooth roots (111, 112) are implanted in the alveolar bone (1).

The plurality of artificial tooth roots are referred to as a first artificial tooth root 111 and a second artificial tooth root 112 .

The first artificial tooth root 111 and the second artificial tooth root 112 are spaced apart from each other in the direction of the teeth.

The extension direction of the first artificial tooth root 111 and the extension direction of the second artificial tooth root 112 are different from each other. That is, the extension direction of the first artificial tooth root 111 and the extension direction of the second artificial tooth root 112 are not the same or parallel to each other.

An extension direction of the first artificial tooth root 111 is referred to as a first direction, and an extension direction of the second artificial tooth root 112 is referred to as a second direction.

The crown prosthesis 200 is coupled to such a plurality of artificial tooth roots (111, 112).

The crown prosthesis 200 has a structure in which a plurality of unit crowns 210 and 220 coupled to a plurality of

artificial tooth roots

111 and 112, respectively, are continuously formed along the teeth.

Also, the plurality of unit crowns 210 and 220 are assembled and coupled to each other.

A unit crown installed first among the plurality of unit crowns 210 and 220 is referred to as a second unit crown 220 , and a unit crown installed later is referred to as a first unit crown 210 .

A first tooth root insertion groove 211 and a first crown coupling portion 212 are formed in the first unit crown 210 .

The first tooth root insertion groove 211 is for insertion and bonding of the upper end of the first artificial tooth root 111 corresponding to the first unit crown 210 .

The first tooth root insertion groove 211 is concavely formed from the lower portion of the first unit crown 210 to the upper portion in the first direction. Here, the first direction refers to a direction that is the same as or parallel to the extension direction of the first artificial tooth root 111 .

The first crown coupling portion 212 is formed on a side surface of the first unit crown 210 facing the second unit crown 220 .

The first crown coupling part 212 has a shape extending in the first direction.

In this embodiment, the first crown coupling part 212 has a cross-sectional structure in the shape of a coupling groove extending from the bottom to the middle part in the vertical direction in the first direction.

A second root insertion groove 221 and a second crown coupling portion 222 are formed in the second unit crown 220 .

The second root insertion groove 221 is for insertion and bonding of the upper end of the second artificial tooth root 112 corresponding to the second unit crown 220 .

The second root insertion groove 221 is concavely formed from the lower portion of the second unit crown 220 to the upper portion in the second direction. Here, the second direction refers to a direction that is the same as or parallel to the extension direction of the second artificial tooth root 112 .

The second crown coupling portion 222 is formed on a side surface of the second unit crown 220 facing the first unit crown 210 .

The second crown coupling portion 222 has a shape extending in the first direction.

In the present embodiment, the second crown coupling part 222 has a cross-sectional structure in the form of a coupling protrusion to be inserted into the first crown coupling part 212 and extends in the first direction from the lower part to the middle part in the vertical direction.

That is, in the second crown coupling part 222 , the second root insertion groove 221 extends along the second direction, while the second crown coupling part 222 extends along the first direction.

An installation method of this embodiment will be described.

In the state in which the first artificial tooth root 111 and the second artificial tooth root 112 are implanted, the second unit crown 220 is installed first.

Dental cement is applied in advance to the second artificial tooth root 112 or the second tooth root insertion groove 221 .

Thereafter, the second unit crown 220 is inserted into the second artificial root 112 along the second direction, and the second artificial root 112 is inserted into the second root insertion groove 221 of the second unit crown 220. and bonded.

At this time, the second crown coupling part 222 is disposed to face the first unit crown 210 to be installed later.

In this way, the second unit crown 220 is installed very simply.

Thereafter, the first unit crown 210 is installed.

Dental cement is applied to the first artificial tooth root 111 or the first tooth root insertion groove 211 in advance.

Thereafter, the first unit crown 210 is inserted into the first artificial tooth root 111 along the first direction, and the first artificial tooth root 111 is inserted into the first tooth root insertion groove 211 of the first unit crown 210. and the first crown coupling part 212 is slidably coupled to the second crown coupling part 222 .

This is possible because the first crown coupler 212 and the second crown coupler 222 extend in the same first direction.

In some cases, dental cement may be applied to the first crown coupling part 212 and the second crown coupling part 222 in advance.

The first unit crown 210 is installed on the first artificial tooth root 111 by a very simple method as described above, and the first unit crown 210 is coupled to the second unit crown 220 to provide the crown prosthesis of the present invention. (200) is completed.

6 is a conceptual diagram of a dental implant device according to a second embodiment of the present invention.

While the first embodiment describes a form in which two unit crowns are continuous, in this embodiment, a form in which three unit crowns are continuous is described.

In addition, a form in which four or more unit crowns are continuous will be applicable with reference to the first embodiment and the present embodiment.

Three artificial tooth roots (111, 112, 113) are implanted in different directions.

The first artificial tooth root 111 extends in the first direction, the second artificial tooth root 112 extends in the second direction, and the third artificial tooth root 113 extends in the third direction.

The unit crowns are referred to as a third unit crown 230 , a second unit crown 220 , and a first unit crown 210 according to the order in which they are installed.

That is, the third unit crown 230 on the left is installed first, and the first unit crown 210 in the center is installed last.

A first tooth root insertion groove 211 is formed in the first unit crown 210 , and a 1-1 crown coupling portion 212a is formed on a side surface facing the third unit crown 230 , and a second unit crown ( A 1-2 crown coupling portion 212b is formed on the side facing 220 .

The first tooth root insertion groove 211, the 1-1 crown coupling part 212a, and the 1-2 crown coupling part 212b all extend in the first direction.

A second root insertion groove 221 is formed in the second unit crown 220 , and a second crown coupling portion 222 is formed on a side surface facing the first unit crown 210 .

The second root insertion groove 221 extends in the second direction, and the second crown coupling portion 222 extends in the first direction.

A third root insertion groove 231 is formed in the third unit crown 230 , and a third crown coupling portion 232 is formed on a side surface facing the first unit crown 210 .

The third root insertion groove 231 extends in the third direction, and the third crown coupling portion 232 extends in the first direction.

First, the third unit crown 230 is installed along the third direction.

Next, the second unit crown 220 is installed along the second direction.

Thereafter, the first unit crown 210 is installed along the first direction.

At this time, the 1-1 crown coupling portion 212a of the first unit crown 210 is slidably coupled to the third crown coupling portion 232 of the third unit crown 230 in the first direction, and the first unit crown The first and second crown coupling portions 212b of 210 are slidably coupled to the second crown coupling portions 222 of the second unit crown 220 in the first direction.

This embodiment shows that three unit crowns can be installed in a manner different from that of the second embodiment.

That is, when the third unit crown 230 on the left is installed first, the first unit crown 210 on the right is installed last.

A first tooth root insertion groove 211 is formed in the first unit crown 210 , and a first crown coupling portion 212 is formed on a side surface facing the second unit crown 220 .

The first tooth root insertion groove 211 and the first crown coupling portion 212 are both extended in the first direction.

A second root insertion groove 221 is formed in the second unit crown 220, and a 2-1 crown coupling portion 222a is formed on the side facing the first unit crown 210, and the third unit crown ( A 2-2 crown coupling portion 222b is formed on the side facing 230),

The second root insertion groove 221 and the 2-2 crown coupling part 222b extend in the second direction, and the 2-1 crown coupling part 222a extends in the first direction.

A third root insertion groove 231 is formed in the third unit crown 230 , and a third crown coupling portion 232 is formed on a side surface facing the second unit crown 220 .

The third root insertion groove 231 extends in the third direction, and the third crown coupling portion 232 extends in the second direction.

First, the third unit crown 230 is installed along the third direction.

Next, the second unit crown 220 is installed along the second direction.

At this time, the second-second crown coupling portion 222b of the second unit crown 220 is slidably coupled to the third crown coupling portion 232 of the third unit crown 230 in the second direction.

Thereafter, the first unit crown 210 is installed along the first direction.

At this time, the first crown coupling portion 212 of the first unit crown 210 is slidably coupled to the 2-1 crown coupling portion 222a of the second unit crown 220 in the first direction.

As described above, according to the present invention, the shape of the unit crown (root insertion groove and crown coupling part, etc.) is designed in advance in consideration of the arrangement state of a plurality of artificial tooth roots, so that the unit crown is smoothly inserted and coupled to each artificial tooth root It is assembled and combined with the unit crown to form a single crown prosthesis.

As described above, the present invention is expected to enable the use of an integrated unit crown in an implant system using an integrated artificial tooth root in which the fixture and the abutment are integrated, so that the use of the integrated artificial root can be greatly expanded.

In addition, the present invention can simplify the overall implant system because the direction of the abutment does not need to be parallel to other abutments even in an implant system using an artificial tooth root of an assembled type with a fixture and an abutment assembled. can

The above description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

The present invention can be used as a dental implant system.

Claims

In a dental implant comprising a crown prosthesis in which a plurality of artificial tooth roots to be implanted in the alveolar bone and are spaced apart from each other in the direction of the teeth, and a crown prosthesis in which a plurality of unit crowns respectively coupled to the plurality of artificial tooth roots are continuously formed along the teeth. :

The crown prosthesis includes a first unit crown and a second unit crown that are assembled and coupled to each other;

The first unit crown is concave upward along a first direction that is the same as or parallel to the extension direction of the first artificial tooth root from the lower portion so that the upper end of the first artificial tooth root corresponding to the first unit crown is inserted and joined. a first tooth root insertion groove is formed, and a first crown coupling portion extending in the first direction is formed on a side surface facing the second unit crown;

The second unit crown is the same as or parallel to the extension direction of the second artificial tooth root from the lower side so that the upper end of the second artificial tooth root corresponding to the second unit crown is inserted and joined, and a second second direction different from the first direction A second root insertion groove concave upward along the direction is formed, and a second tooth root insertion groove is formed on a side surface facing the first unit crown to extend along the first direction and to be assembled and coupled with the first crown coupling part. A crown joint is formed;

an extension direction of the first artificial tooth root and an extension direction of the second artificial tooth root are the same or not parallel to each other;

Dental implant system, characterized in that.
The method of claim 1,

The first crown coupling part has a cross-sectional structure in the form of a coupling groove extending in the first direction from the lower part to the middle part in the vertical direction, and the second crown coupling part has a coupling protrusion shape for insertion into the first crown coupling part. Dental implant system, characterized in that the cross-sectional structure is extended in the first direction.
In the crown prosthesis for dental implants in which a plurality of unit crowns are continuously formed along the teeth:

The crown prosthesis includes a first unit crown and a second unit crown that are assembled and coupled to each other;

In the first unit crown, a first root insertion groove concavely formed from the lower part to the upper part in the first direction is formed for insertion and bonding of the upper end of the artificial tooth root corresponding to the first unit crown, and the second unit crown A first crown coupling portion extending along the first direction is formed on the side facing toward the;

The second unit crown has a second root formed concave upward along a second direction that is the same as or not parallel to the first direction from the lower portion in order to be inserted and joined to the upper end of the artificial tooth root corresponding to the second unit crown. an insertion groove is formed, and a second crown coupling part for being assembled and coupled to the first crown coupling part is formed on a side surface facing the first unit crown and extending in the first direction;

Crown prosthesis for dental implants, characterized in that.
4. The method of claim 3,

The first crown coupling part has a cross-sectional structure in the form of a coupling groove extending in the first direction from the lower part to the middle part in the vertical direction, and the second crown coupling part has a coupling protrusion shape for insertion into the first crown coupling part. Crown prosthesis for dental implant, characterized in that the cross-sectional structure is extended in the first direction.