KR20100033294A - Dental abutment - Google Patents

Abstract

PURPOSE: A dental abutment is provided to attach and detach a cap for fixing provisional tooth and to reduce a required period for symphysis of implant when mounting the abutment to the implant. CONSTITUTION: A dental abutment comprises: an abutment(20); an implant which is fixed to the abutment; a cap for fixing provisional tooth which is mounted on the abutment; a dental implant fixing unit(20a) which is mounted the abutment; a mucous membrane penetration part(20b) mounted on the abutment; an implant connecting part(20c) mounted on the abutment; a screw part(20d) mounted on the abutment; and a magnet(50) which is included inside the abutment.

Description

Dental abutment {Dental abutment}

The present invention relates to a dental abutment, and more particularly, to promote bone regeneration of the alveolar bone at the site where the abutment is fastened, to promote adhesion of the implant to the alveolar bone, and to temporarily implant the implant immediately. It relates to abutments that can significantly reduce the effect of implantation on the alveolar bone when used by mounting teeth (including dentures).

In general, an implant used in the dental field refers to a metal structure that is bonded to the alveolar bone by acting as an artificial root by placing it in the alveolar bone of the part where the tooth is partially or entirely lost in the oral cavity. Implants do not need to shave adjacent teeth, prevent alveolar bone from being absorbed, resulting in a functional and esthetically superior prosthesis, and because of the advantages of not having to drop out when speaking, laughing, or eating. As a result, it is solidifying its position as a new dental treatment area, and its spread is also gradually spreading.

Dental implants, which have been used successfully these days, are mostly due to the concept of osteointegration, which began to prove microscopically in the 1960s. Figure 1 schematically shows the procedure of a commonly used implant procedure. This unique method involves the first operation of placing the main body implant and the second operation of exposing the main body implant. Since functional aesthetic disturbances of as little as three months and as long as six months are inevitable, by the time of the final installation of the prosthesis, patients have to suffer from various side effects from long-term malnutrition. Therefore, in order to solve this problem, with the study of reducing the time until the implant is placed in the alveolar bone and stably fixed, by inserting a temporary tooth in the implant before the implant is completely fixed after implantation, the implant is bone in the alveolar bone The use of temporary teeth for a fixed period of time by adhesion has been studied.

In order to install a temporary tooth on an implant placed in the alveolar bone, the abutment should be fastened to the implant and the cap to which the temporary tooth is fixed should be detachable from the abutment at any time. Background Art Conventionally, a screw thread or an adhesive method has been used to mount a cap on which a temporary tooth is fixed to an abutment. However, when the thread or adhesive is used, the movement generated when the temporary tooth fixing cap is detached is transferred to the implant that is not yet completely bone-bonded with the alveolar bone, thereby preventing the bone adhesion of the implant. In addition, when the adhesive is used, the adhesive may flow into the wound of the gum resulting from the implant placement operation, which may adversely affect the healing of the wound.

As a solution to this problem, as shown in FIG. 2, the temporary tooth fixing cap 3 is fixed to the abutment 2 fastened to the implant 1 by mechanical engagement due to a tapered shape at a predetermined angle θ. Has been developed (GE Romanos, Present status of immediate loading of oral implnats, 2004, Jouranl of Oral Implantology). As shown in FIG. 2, when the upper portion 2a of the abutment engaging with the temporary tooth fixing cap has a form of tapering with a θ value of 4 to 6 ° and spreads downward, the temporary tooth fixing cap is engaged with the temporary tooth fixing cap. The cap for fixing teeth can be fixed by mechanical bite on the upper part of the abutment.

On the other hand, in order to shorten the bone adhesion period of the implant, a method of introducing a magnet inside the implant has been proposed, as a result of the magnetism generated by the magnet is promoted bone formation is not introduced in the bone adhesion effect The change of bone formation according to the magnetic strength of magnets installed inside titanium implant specimens, Journal of Korean Dental Prosthodontics, Vol. 43, No. 2, 2005 .

An object of the present invention is to remove the temporary tooth fixing cap while minimizing the adverse effect of the implanted implant is stably fixed to the alveolar bone, as well as the time required for the bone adhesion of the implant when mounted on the implanted implant It is to provide renters that can be reduced.

The present invention to achieve the above object

It is fastened to the implant placed in the alveolar bone and used to install the artificial tooth prosthesis,

In a dental abutment comprising an artificial tooth prosthesis fixation part, a mucosa penetrating part, an implant fastening part, and a screw,

The magnet is embedded in any part of the abutment except for the screw,

The abutment provides a dental abutment, characterized in that it is made of magnetic material.

Since the magnet is embedded in the abutment and a magnetic field is formed around the abutment, a temporary tooth fixing cap made of a magnetic material may be attached to the abutment fixing portion of the abutment by magnetic force. Therefore, the temporary teeth can be fixed to the cap for fixing the temporary teeth so that the temporary teeth can be attached to the artificial tooth prosthesis fixing part of the abutment.

The magnet may be embedded in any part except the screw part of the abutment by forming a space in the part except the screw part in the abutment and allowing the magnet to exist in the space, but the present invention is not limited thereto. Any method is possible as long as it is a method to make it.

The outer surface of the artificial tooth prosthesis fixing portion of the abutment is preferably in the form of 4 to 10 degrees tapered to spread downward for stable mounting and easy removal of the temporary tooth fixing cap.

The magnet present in the abutment preferably has a magnetic force such that the temporary tooth fixing cap made of the magnetic material has a load value of 400 to 1,000 g for the abutment in which the magnet is embedded. If the load value is exceeded, it may be inconvenient to remove too much force when removing the temporary tooth fixing cap attached to the abutment and the implant is secured to the alveolar bone by affecting the implant placed in the alveolar bone through the abutment. It can have an adverse effect. In addition, when the load value is less than the temporary tooth fixing cap may not reach the minimum force that can be mounted on the abutment may cause a problem that the temporary tooth fixing cap may not be stably mounted on the abutment.

The kind of magnets present in the abutment is not particularly limited. For example, rare earth magnets such as neodymium (Nd), cobalt-samarium (Co-Sm), NdFeB magnets, 45MGOe neodymium alloys, or highly corrosion-resistant Platinum- Iron (PtFe) magnets and the like can be used.

The abutment must be a magnetic material in order to pass the magnetic field of the magnet existing in the abutment, and the temporary tooth fixing cap must also be a magnetic material to receive the magnetic force generated by the magnet. Magnetic material is not a magnet itself, but when it is placed in a magnetic field, it turns into a magnet and has a pulling force. A magnetic material is an object that loses its magnetic force and becomes a general metal when the magnet is released. In addition, as a magnetic material used as the material for the abutment and temporary tooth fixing cap, stainless steel may be typically used, and such stainless steel may be AUM20 (19Cr-1Mo-0.1Ti) or SUS316 (highly resistant to corrosion). 16Cr-12Ni-2Mo), but is not limited thereto.

The abutment, in which the magnet is embedded, can mount and remove the temporary tooth fixing cap made of magnetic material on the abutment by magnetic force, thereby minimizing the negative force to fix the alveolar bone of the implant, and thus the temporary tooth fixing cap. Can be mounted and removed. Therefore, the abutment according to the present invention can be used for mounting the temporary tooth while minimizing the adverse effect of stably fixing the implant to the alveolar bone by fixing the temporary tooth via the temporary tooth fixing cap.

In another aspect, the present invention provides a temporary tooth fixing cap that can be magnetically mounted to the dental abutment prosthetic fixture fixing portion. The temporary tooth fixing cap may allow a groove having a width of 1.0 to 2.0 mm to be formed on the upper portion of the temporary tooth fixing cap so as to be used to fix the wire during the temporary tooth procedure.

As described above, in the present invention, the magnet is embedded in the abutment and the abutment cap and the temporary tooth fixing cap are made of magnetic material, so that the abutment is fastened directly to the implant to use the temporary tooth after implanting the implant in the alveolar bone. Even if the cap is fixed, it is possible to prevent the implant from exerting the lateral force that hinders the bone adhesion of the implant to the alveolar bone, and the bone formation of the alveolar bone due to the magnetic field generated by the magnet inherent in the abutment. By promoting the effect of promoting bone adhesion of the implant, the implant is implanted while using a temporary tooth is preferable because it can be stably fixed to the alveolar bone.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

3 shows a perspective view of a rented column according to an embodiment of the present invention.

The abutment 20 according to one embodiment of the present invention shown in FIG. 3 is a part located when the abutment 20 is fastened to the implant 10 and the temporary tooth fixing cap 30 is mounted to the abutment 20. According to each role, it has a form including an artificial tooth prosthesis fixing part 20a, a mucosa penetrating part 20b, an implant fastening part 20c, and a screw part 20d. In addition, in order to embed the magnet 50 in the abutment 20 except for the screw portion of the abutment 20, a space 40 is formed in the abutment 20 and the magnet 50 is positioned in the space 20. It may have a form. The space 40 in the abutment 20 may be in any shape other than the same as the space 40 of FIG. 3 as long as the magnet 50 can be positioned within the abutment.

The embedding of the magnet 50 in any part of the abutment 20 except for the screw portion 20d of the abutment 20 may be made by any method, for example, the screw of the abutment 20. The magnet 50 is present in the empty space 40 in the abutment 20 by forming the space 40 in the portion 20a, 20b, or 20c except for the portion 20d and putting the magnet 50 in the space. You can do it by doing so. However, the magnet should be present in the abutment 20, and if the magnet 50 is exposed to the outside, the magnet 50 may be harmful to the health of the gums by a strong magnetic force. It must not be exposed to the outside. For example, in order for the magnet 50 to be present in the abutment 20, a hole may be formed in the abutment 20, a magnet may be introduced, and then sealed by a method such as laser welding.

The outer surface of the artificial tooth prosthesis fixing portion 20a of the abutment 20 is preferably tapered to have a form that spreads downward. The outer surface of the artificial tooth prosthesis fixing portion 20a of the abutment 20 is tapered to have a form that spreads to the lower side, and thus the temporary tooth of the form that meshes with the outer surface of the artificial tooth prosthesis fixing portion 20a of the abutment 20 later. When the fixing cap 30 is mounted on the artificial tooth prosthesis fixing part 20a, the cap 30 may be stably mounted by mechanical engagement force, and the temporary cap fixing cap 30 may be more easily removed. The angle θ at which the outer surface of the artificial tooth prosthesis fixing portion 20a of the abutment 20 is tapered is preferably 4 to 10 degrees.

The size of each portion of the abutment 20 may be in the size range of the abutment commonly used in the art, for example, the total length of the abutment 20 is 12 to 20 mm, the diameter of the maximum cross section of the abutment The size of the may be 5 to 8mm, the mucosa penetrating portion 20b of the abutment 20 may be 2 to 6mm.

The abutment 20 may be equipped with a temporary tooth fixing cap 30 to fix the temporary teeth. 4 is a partial perspective view showing the temporary tooth fixing cap 30 according to an embodiment of the present invention. The singer temporary tooth fixing cap 30 has a shape such that the inner surface of the temporary tooth fixing cap is engaged with the artificial tooth prosthesis fixing portion 20a of the abutment 20. Therefore, the inner surface of the temporary tooth fixing cap 30 has a form in which the outer surface of the artificial tooth prosthesis fixing portion 20a of the abutment 20 is tapered at the same angle as the tapered angle and spreads downward. In addition, as shown in FIG. 4, the temporary tooth fixing cap 30 preferably has a groove 30a having a width of 1.0 to 2.0 mm at an upper portion thereof. The groove 30a is adjacent to the wire by a wire during the procedure. It can be conveniently used to secure the connection with another fixing cap.

The abutment 20 according to the embodiment of the present invention shown in FIG. 3 is fastened to the implant 10 and the temporary tooth fixing cap 30 according to the embodiment of the present invention shown in FIG. 4 is mounted in the abutment. Partial perspective view showing the form is shown in FIG. 5.

As shown in FIG. 5, when the abutment 20 is fastened to the implant 10 using the screw portion 20d of the abutment 20, the screw portion 20d and the implant fastening portion 20c of the abutment 20 are fastened. Is entered into the interior of the implant 10, the mucous membrane penetrating portion 20b and artificial tooth prosthesis fixing portion 20a of the abutment 20 is exposed from the outside. Then, the temporary tooth fixing cap 30 may be mounted on the artificial tooth prosthesis fixing portion 20a. The temporary tooth fixing cap 30 is a magnetic force generated between the temporary tooth fixing cap 30 made of a magnetic material and the abutment 20 by a magnetic field generated by the magnet 50 existing inside the abutment 20. It can be easily mounted to the artificial tooth prosthesis fixing portion (20a) of the abutment (20). In addition, the tapered and protruding lower portion of the artificial tooth prosthesis fixing portion 20a of the abutment 20 and the shape of the temporary tooth fixing cap 30 formed to engage with the outer surface are easy to install and remove. Mechanical coupling of can be made together. As such, the magnet 50 is embedded in the interior 40 of the abutment 20, which is a feature of the present invention, and both the abutment 20 and the temporary tooth fixing cap 30 are made of a magnetic material. Temporary tooth fixing cap 30 may be mounted to abutment 20. In addition, when the temporary tooth fixing cap 30 is mounted on the abutment 20 by magnetic force, the artificial tooth prosthesis fixing part of the abutment 20 is maintained in order to maintain the most stable coupling as in the case of relying only on the mechanical coupling. It is not necessary to keep the outer surface of 20a) in the form of tapering down to 4-6 degrees. As such, the abutment 20 according to the present invention does not need to have a tapered shape at an angle that causes a strong mechanical coupling for mounting to the abutment 20 of the temporary tooth fixing cap 30. By appropriately selecting the magnet 50 inherent in 20, the magnetic force generated between the abutment 20 and the temporary tooth fixing cap 30 can be appropriately adjusted. Therefore, the abutment 20 according to the present invention is in the left and right directions generated when the temporary tooth fixing cap 30 is removed when the temporary tooth fixing cap 30 is mounted only by a tapered at a predetermined angle and spreads downward. The force is transmitted along the abutment (20) to the implant (10) to avoid the phenomenon that the implant (10) that is not yet completely fixed to the alveolar bone to achieve the bone adhesion with the alveolar bone. In addition, since the magnetic force acting between the abutment 20 and the temporary tooth fixing cap 30 by the magnet 50 inherent to the abutment 20 is a force in the vertical direction, the temporary teeth fixed to the abutment 20 are mounted. When the cap 30 is removed again, the force in the left and right directions is not applied, and only by the action of upward force. Therefore, the cap 30 is transmitted to the implant 10 when the temporary tooth fixing cap 30 is removed. The force can be driven only by upward gravity, not by the force in the left and right directions. Therefore, the abutment 20 according to the present invention may prevent the force of the right and left direction that prevents the implant 10 from bone bonding to the alveolar bone. In addition, when selecting the magnet 50 present in the abutment 20 by selecting a magnet having a magnetic force of the appropriate size, while fixing the temporary tooth fixing cap 30 to the abutment 20 stably fixed temporary teeth When removing the cap 30 is less influential than the force in the left and right direction, but may be adjusted to a size that minimizes the upward attraction force that may affect the bone adhesion of the implant (10) slightly. Therefore, using the abutment 20 and the temporary tooth fixing cap 30 according to the present invention, before the implant 10 is completely and securely fixed to the alveolar bone, the temporary tooth fixing cap 30 according to the present invention is used. By using a temporary tooth implant 10 has the advantage that can be successfully fixed.

In view of this, the load value of the temporary tooth fixing cap 30 for the abutment 20 generated by the magnet 50 inherent in the abutment 20 is preferably in the range of 400 g to 1,000 g. In addition, the kind of the magnet 50 inherent in the abutment 20 is not particularly limited, but for example, neodymium (Nd), cobalt-samarium (Co-Sm), NdFeB magnet, 45MGOe neodymium alloy, or corrosion resistance This strong Platinum-Iron (PtFe) magnet or the like can be used. The size and shape of the magnetic material is not particularly limited, and may be, for example, a cylindrical shape having a diameter of 2.0 to 5.0 mm and a length of 2.0 to 10.0 mm. In addition, the magnetic material of the abutment 20 and the temporary tooth fixing cap 30 may be a medical metal that does not discolor or corrode in the oral cavity and does not adversely affect the human body. Stainless steel with high resistance may be used, and such stainless steels include AUM20 (19Cr-1Mo-0.1Ti) or SUS316 (16Cr-12Ni-2Mo).

In addition, the abutment 20 according to the present invention forms a magnetic field around the gum on which the implant 10 is placed due to the magnet 50 present therein when mounted on the implant 10. As already known, the formation of the magnetic field promotes the bone formation of the alveolar bone where the implant 10 is placed, and has a positive effect on the bone adhesion to the alveolar bone of the implant 10. Therefore, the abutment 20 according to the present invention does not interfere with bone adhesion of the implant 10 by removing the force in the left and right directions generated when the temporary tooth fixing cap 30 is detached for use of the temporary teeth as described above. In addition, because the magnetic field generated by the magnet 50 present in the abutment 20 promotes bone formation in the portion where the implant 10 is placed, the implant 10 is stably fixed to the alveolar bone by bone adhesion. It has the advantage of playing a role in helping.

Figure 1 schematically shows the procedure of a commonly used implant procedure.

 2 is a partial perspective view showing the aspect of fixing the temporary tooth fixing cap to the abutment fastened to the implant by mechanical engagement due to the tapered shape at an angle θ according to the conventional method.

3 is a perspective view showing abutment according to an embodiment of the present invention.

4 is a partial perspective view showing a temporary tooth fixing cap according to an embodiment of the present invention.

5 is a partial perspective view showing a form in which the abutment according to the embodiment of the present invention is fastened to the implant and the temporary tooth fixing cap is mounted on the abutment.

Description of the Related Art

1, 10: implant

2, 20: renter

2a, 20a: Artificial tooth prosthesis fixing part

2B, 20b: membrane penetration

2C, 20c: Implant Connection

2d, 20d: screw part

3, 30: Temporary tooth fixing cap

40: space

50: magnet

Claims (10)

It is fastened to the implant placed in the alveolar bone and used to install the artificial tooth prosthesis, In a dental abutment comprising an artificial tooth prosthesis fixation part, a mucosa penetrating part, an implant fastening part, and a screw part, The magnet is embedded in any part of the abutment except for the screw part, The rent abutment for dental rent, characterized in that consisting of a magnetic material. The dental abutment according to claim 1, wherein the artificial tooth prosthesis fixing part is provided with a temporary tooth fixing cap made of a magnetic material. The dental abutment according to claim 1 or 2, wherein a space is formed in a portion except for the screw portion of the rent column, and a magnet exists in the space. The dental abutment according to claim 1 or 2, wherein the outer surface of the artificial tooth prosthesis fixing portion of the abutment is tapered at 4 to 10 degrees to spread downward. 3. The dental abutment according to claim 2, wherein the load value of the abutment cap of the temporary tooth fixing cap is 400 to 1,000 g. 3. The dental method of claim 1, wherein the magnet is a neodymium (Nd), cobalt-samarium (Co-Sm), NdFeB magnet, 45MGOe neodymium alloy, or a Platinum-Iron (PtFe) magnet. Rent. 3. The dental abutment according to claim 1 or 2, wherein the magnetic material is stainless steel. 3. The dental abutment according to claim 2, for mounting a temporary tooth or denture before the implant is fully secured. Temporary tooth fixing cap made of a magnetic material that can be mounted by magnetic force on the artificial tooth prosthesis fixing portion according to claim 1. 10. The temporary tooth fixing cap of claim 9, wherein the temporary tooth fixing cap has a groove having a width of 1.0 to 2.0 mm formed thereon to fix the wire.

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