KR20220032358A - Pre-formed inlay applicable to dental implants and natural teeth - Google Patents

Abstract

The present invention is applied to a dental implant comprising: a fixture which is fixed in an alveolar bone; an abutment of which the lower end portion is connected to the fixture; a crown which is connected to the upper end portion of the abutment; and a screw which is inserted in a hole formed in the crown and is fastened with the fixture. After the screw is fastened with the fixture while passing through the hole, the present invention is filled in a remaining space in the crown and is formed as a solid-state inlay mold to be inserted in the hole and fill the remaining space. Therefore, an operator can easily and quickly fill the remaining space formed on the inside of the crown.

Description

Pre-formed inlays applicable to dental implants and natural teeth

The present invention relates to a ready-made inlay applicable to dental implants and natural teeth, and is easily inserted into a screw hole formed in a crown or a hole or groove formed in a natural tooth, and is configured to fill the excess space formed inside the crown or natural tooth. It relates to molded inlays.

A dental implant refers to an artificial tooth structure formed by planting an artificial tooth root in a portion where a tooth is partially or wholly lost, adhering to the alveolar bone, and fixing a dental prosthesis to the artificial tooth root.

In general, dental implants include a fixture that is placed in the alveolar bone to play the role of an artificial tooth root, an abutment that is coupled to the fixture and is placed over the patient's gums, and a crown fastened with the abutment. is comprised of

The fixture can be said to be a fixture configured to support the artificial tooth by being planted in the alveolar bone of the tooth region where the defect is made, such as the root of a natural tooth.

The abutment is also called an abutment, and may be configured to connect the dental prosthesis with the fixture placed in the alveolar bone.

The crown is fixed in the oral cavity by an abutment and may be configured to reproduce a function of the same shape as a natural tooth.

A hole into which a screw can be inserted is formed in the dental prosthesis, and a fastening groove for fastening with the screw inserted into the hole may be formed in the fixture.

After passing through the hole formed in the crown, the screw may be inserted into the fastening groove formed in the fixture to be fastened to the fixture. In this state, the crown and the fixture are coupled to each other by screws.

On the other hand, when the screw is fastened to the fixture after passing through the hole, an extra space is generated in the hole, and this extra space is a sponge-type filler such as a putty material and a floorable resin. It will be filled sequentially with bonding material.

However, the conventional bonding material has a disadvantage in that the hole formed in the crown cannot be continuously filled and is lost due to the wash out phenomenon due to the low chemical durability and high abrasion resistance.

As such, when the bonding material is washed out with saliva or water, a gap is created in the hole, and bacteria can penetrate through this gap and be transmitted to the alveolar bone. In addition, when performing a procedure for extracting the fixture from the alveolar bone, a process of re-drilling the crown is required to separate the screw.

Accordingly, the present applicant has proposed the present invention in order to solve the above problems, and as a related prior art document, there is 'lithium disilicate implant prosthesis' of Korean Patent Registration No. 10-1645357.

The present invention is to solve the above problems, and fills the extra space formed in the crown with an inlay molded body with excellent chemical durability, strength and workability to increase resistance due to washout and reduce infection by bacteria. It is intended to provide

The present invention relates to a fixture fixed to the alveolar bone, an abutment having a lower end connected to the fixture, a crown connected to the upper end of the abutment, and inserted into a hole formed in the crown to be fastened with the fixture It is applied to a dental implant including a screw, and after the screw is fastened with the fixture via the hole, the surplus space formed inside the crown is filled, and the hole is filled with an inlay molded body in a solid state. may be inserted to fill the surplus space.

In addition, the inlay molded body may be inserted into the hole while having a flat cross-sectional shape corresponding to the flat cross-sectional shape of the hole to fill the excess space.

In addition, the lower end of the inlay molded body may be inserted into the hole and disposed in the excess space formed inside the crown, and the upper end thereof may be exposed as an upper portion of the crown.

In addition, the inlay molded body may further include a putty material that is preferentially inserted into the excess space to fill a part of the excess space.

In addition, the putty material can be applied to dental implants and natural teeth, characterized in that it has a color.

In addition, the inlay molded body may be made of any one material of crystallized glass (glass ceramic), hybrid resin (hybrid resin), and leucite.

In addition, the present invention is a ready-made inlay that is applied to a hole or a groove formed in a natural tooth to fill the surplus space generated inside the natural tooth, wherein the ready-made inlay is inserted into the hole or the groove while being composed of an inlay molded body in a solid state. to fill the surplus space.

In addition, the inlay molded body may further include a putty material that is preferentially inserted into the excess space to fill a part of the excess space.

Since the ready-made inlay applicable to the dental implant and natural teeth according to the present invention is composed of an inlay molded body that can be used immediately in response to the hole size formed in the crown, the operator can easily and quickly fill the surplus space formed inside the crown. make it possible

In addition, the ready-made inlay applicable to dental implants and natural teeth according to the present invention includes an inlay molded body formed of a material having excellent chemical durability, strength, and mechanical workability, and thus prevents loss of the inlay due to washout, It is also possible to prevent the penetration of bacteria into the loss site.

In addition, the ready-made inlay applicable to the dental implant and natural teeth according to the present invention is manufactured based on the size of the hole formed in the crown by the inlay molded body, so that the operator can stably perform the implant procedure, thereby reducing the risk of side effects, Treatment costs can be reduced by shortening the treatment time and treatment period.

In addition, the ready-made inlay applicable to the dental implant and natural teeth according to the present invention, in the process of re-drilling a hole in the crown to remove the implant, the operator can easily check the accuracy of the drilling with the color assigned to the putty material to be able to judge

In addition, the ready-made inlay applicable to the dental implant and natural teeth according to the present invention makes the pre-formed molded body valuable as a product, so it can be sold as a set together with other implant components.

1 is an exploded perspective view showing the configuration of a dental implant to which a ready-made inlay according to an embodiment of the present invention will be applied.
Figure 2 is an exploded cross-sectional view of the dental implant shown in Figure 1;
3 is a cross-sectional view showing a state in which the screw shown in FIG. 2 is fastened to the fixture;
Figure 4 (a) is a cross-sectional view showing a state in which the putty material and the inlay molded body are sequentially inserted into the inner space of the crown shown in Figure 3;
Figure 4 (b) is a cross-sectional view showing a state in which the upper end of the inlay molded body shown in Figure 4 (a) is removed by grinding.
Figure 5 (a) is a cross-sectional view showing a state that the putty material and the inlay molded body according to an embodiment of the present invention are inserted into the groove formed in the natural tooth.
Figure 5 (b) is a cross-sectional view showing a state in which the upper end of the inlay molded body shown in Figure 5 (a) is removed by grinding.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but will be embodied in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

Hereinafter, a dental implant to which a pre-formed inlay is applied according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5 . In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted so as not to obscure the gist of the present invention.

1 is an exploded perspective view showing the configuration of a dental implant to which a pre-formed inlay is applied according to an embodiment of the present invention, FIG. 2 is an exploded cross-sectional view of the dental implant shown in FIG. 1, and FIG. 3 is shown in FIG. It is a cross-sectional view showing the state in which the screw is fastened to the fixture, and Fig. 4 (a) is a cross-sectional view showing the sequentially inserted putty material and the inlay molded body into the inner space of the crown shown in Fig. 3, Fig. 4 (b) is a cross-sectional view showing a state in which the upper end of the inlay molded body shown in FIG. 4 (a) has been removed by grinding, and (a) of FIG. It is a cross-sectional view showing a state that the molded body is inserted into the groove formed in the natural tooth, and FIG. 5 (b) is a cross-sectional view showing a state in which the upper end of the inlay molded body shown in FIG. 5 (a) has been removed by grinding.

The present invention can be said to be an invention characterized in that, during the implant procedure, the excess space generated inside the crown is filled with an inlay molded body in a solid state that has already been molded and processed.

In particular, by immediately using the inlay molded body in an already hardened state, it is characterized in that it is configured to prevent the inlay from being lost due to a wash out phenomenon and also to prevent bacterial infiltration.

The ready-made inlay according to an embodiment of the present invention may be applied to the dental implant 100 .

Hereinafter, the dental implant 100 will be described with reference to FIGS. 1 to 3 .

1 to 3, the dental implant 100 includes a fixture 10 fixed to the alveolar bone, an abutment 20 having a lower end connected to the fixture 10, and the It may include a crown 30 connected to the upper end of the abutment 20 and a screw 40 inserted into the hole 31 formed in the crown 30 and fastened to the fixture 10 .

First, the fixture 10 may be said to be a component to be implanted in the alveolar bone, and a screw thread may be formed on its outer surface so as to be firmly coupled to the alveolar bone.

The abutment 20 may be a component interposed between the fixture 10 and the crown 30 and may have a hollow shape.

The upper end of the abutment 20 may be disposed on the inside of the crown 30 via the lower end of the crown 30, and the upper end is inserted into the inner space of the fixture 10 implanted in the alveolar bone and seated. can be

For reference, a structure in which the abutment 20 is connected to the crown 30 and the fixture 10 may use various known fastening methods. For example, as the upper end of the abutment 20 is inserted into the hole formed in the lower portion of the crown 30 in an interference fit manner, the crown 30 and the abutment 20 are coupled to each other, or the crown 30 The crown 30 and the abutment 20 may be connected to each other in a screwing manner by forming threads capable of being screwed to each other, respectively, on the inner circumferential surface of the abutment 20 and the outer surface of the upper end of the abutment 20 .

Similarly, as the lower end of the abutment 20 is inserted into the groove formed in the fixture 10 in an interference fit manner, the fixture 10 and the abutment 20 are coupled to each other, or the fixture 10 ) may be formed on the inner circumferential surface of the abutment 20 and the outer surface of the lower end of the abutment 20 to form threads that can be screwed to each other, thereby connecting the fixture 10 and the abutment 20 to each other in a screw-coupled manner.

On the other hand, as above, when the fixture 10, the abutment 20, and the crown 30 are connected to each other, a space portion connected to each other in communication with each other is formed inside each of the bars, and in this space, the screw ( 40) can be arranged.

The screw 40 serves to couple the crown 30 and the fixture 10 to each other, and is inserted into the hole 31 formed in the crown 30 as described above, and the inner circumferential surface of the fixture 10 . can be contracted with

When the above state is reached, since the head portion of the screw 40 is engaged with the fixture 10 while being caught by the abutment 20 , the crown 30 and the fixture 10 are attached to the screw 40 . to form a tightly coupled state by

On the other hand, when the screw 40 passes through the hole 31 to be formed in the crown 30 and is fastened with the fixture 10, an excess space not filled by the screw 40 inside the crown 30 ( s) occurs.

When the excess space (s) is exposed to the outside, various bacteria may be introduced into the inside of the crown 30 . Therefore, it is preferable to fill the excess space (s).

Therefore, the ready-made inlay according to an embodiment of the present invention can be said to serve as a filler or bonding material filling the excess space (s).

The ready-made inlay, as shown in (a) and (b) of Figure 4, may be composed of the inlay molded body 300 in a solid state. The inlay molded body 300 may be inserted into the hole 31 while having a flat cross-sectional shape corresponding to that of the hole 31 formed in the crown 30 to fill the surplus space s. For example, when the hole 31 is formed in the crown 30 with a circular cross-section, the inlay molded body 300 may also have a circular cross-section.

The inlay molded body 300 as described above may be a component that is preformed based on the standard of the hole 31 formed in the crown 30 .

Accordingly, the inlay molded body 300 may have a diameter equal to or smaller than the diameter of the hole 31 formed in the crown 30 , and the outer peripheral surface thereof to be fixed to the inner surface of the crown 30 while being inserted into the hole. Adhesive (cement) may be applied.

Meanwhile, a holding member 310 may be further provided at the upper end of the inlay molded body 310 . The gripping member 310 may be provided to protrude vertically from the upper surface of the inlay molded body 310 , and may be gripped by a gripping tool such as tweezers. Accordingly, the user can easily apply the adhesive to the outer peripheral surface of the inlay molded body 300 while holding the gripping member 310 with a gripping tool such as tweezers.

In addition, it is preferable that the lower end of the inlay molded body 300 is disposed in the excess space s formed inside the crown 30 , and the upper end thereof has a length exposed to the upper portion of the crown 30 . Because, in order to be compatible with the length of the various excess space (s) formed in the crown (30).

If, when the inlay molded body 300 is disposed in the redundant space s through the hole 31 formed in the crown 30 , it has a length shorter than the length of the redundant space s, the redundant space (s) Due to this relationship that is not completely filled, there is a problem that external bacteria penetrate into the surplus space (s).

In addition, the pre-formed inlay according to an embodiment of the present invention is preferentially inserted into the excess space (s) rather than the inlay molded body 300 as shown in FIGS. 4 (a) and (b). It may further include a putty material 200 in the form of a sponge that fills a part of the excess space (s).

For reference, in one embodiment of the present invention, the inlay molded body 300 is filled by the putty material 200 and is inserted into the remaining excess space (s) to fill the excess space (s). However, it is not limited thereto. For example, the excess space s may be filled only with the inlay molded body 300 except for the putty material 200 .

And, the upper end of the inlay molded body 300 exposed to the upper portion of the crown 30 may be removed by grinding by an operator, as shown in (b) of FIG. 4 . At this time, the holding member 310 provided at the upper end of the inlay molded body 300 may also be removed.

The inlay molded body 300 is preferably made of a material excellent in chemical durability, strength, and mechanical workability. For example, the inlay molded body 300 may be made of any one of a crystallized glass (glass ceramic), a hybrid resin (hybrid resin), and a leucite (leucite).

Since the inlay molded body 300 configured as described above is already manufactured in consideration of the standard of the hole 31 to be formed in the crown 30 as described above, the operator has an excess space (s) formed in the crown 30 . When performing the filling operation, it is possible to perform the operation quickly and conveniently, and in particular, there is no fear of being lost by saliva or water because it fills the surplus space (s) in a bulk state, and the bacterial penetration is further increased. can be prevented

In addition, a process of replacing the crown 30 by separating the fixture 10 implanted in the alveolar bone from the alveolar bone may occur. At this time, a work process of drilling the excess space (s) filled by the putty material 200 and the inlay molded body 300 is required.

However, it is difficult to grasp that the drilling process is accurately made toward the excess space (s) with the naked eye of the operator. In order to solve this problem, it is preferable that the putty material 200 has a color. That is, the operator can easily determine the drilling accuracy by the color given to the putty material 200 in the process of drilling the crown.

Therefore, it is preferable that the putty material 200 has a color of a chromatic color series that is easy to identify.

Although specific embodiments according to the present invention have been described so far, various modifications are possible without departing from the scope of the present invention. For example, in one embodiment of the present invention, the putty material 200 and the pre-formed inlay molded body 300 are illustrated in the description and drawings as being applied to the artificial teeth, but are not limited thereto. For example, as shown in Figs. 5 (a) and (b), the putty material 200 or the pre-formed inlay molded body 300 is inserted into the groove formed in the natural tooth to fill the space of the groove. am.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims described below as well as the claims and equivalents.

10: fixture 20: abutment
30: Crown 31: Hall
40: screw 100: implant
200: putty material 300: inlay molded body
310: holding member

Claims (8)

A fixture fixed to the alveolar bone, an abutment having a lower end connected to the fixture, a crown connected to the upper end of the abutment, and a screw inserted into a hole formed in the crown to be fastened with the fixture Applied to dental implants,
After the screw is fastened to the fixture via the hole, the excess space formed inside the crown is filled,
A ready-made inlay applied to dental implants and natural teeth, characterized in that it is inserted into the hole while being composed of an inlay molded body in a solid state to fill the excess space.
The method of claim 1,
The inlay molded body is inserted into the hole while having a flat cross-sectional shape corresponding to the flat cross-sectional shape of the hole to fill the excess space.
3. The method of claim 2,
The lower end of the inlay molded body is inserted into the hole and disposed in the excess space formed inside the crown, and the upper end thereof is exposed to the upper portion of the crown.
4. The method of claim 3,
A ready-made inlay applied to dental implants and natural teeth further comprising a putty material that is preferentially inserted into the excess space rather than the inlay molded body and fills a part of the excess space.
5. The method of claim 4,
The putty material is a ready-made inlay applied to dental implants and natural teeth, characterized in that it has a color.
The method of claim 1,
The inlay molded body is a ready-made inlay applied to dental implants and natural teeth, characterized in that it is made of any one of a crystallized glass (glass ceramic), a hybrid resin (hybrid resin), and a leucite (leucite).
A ready-made inlay that is applied to a hole or groove formed in a natural tooth to fill the surplus space generated inside the natural tooth,
The ready-made inlay is a ready-made inlay applied to dental implants and natural teeth, characterized in that it is inserted into the hole or the groove portion while being composed of a solid inlay molded body to fill the excess space.
8. The method of claim 7,
A ready-made inlay applied to dental implants and natural teeth further comprising a putty material that is preferentially inserted into the excess space rather than the inlay molded body and fills a part of the excess space.

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