KR101611520B1 - A personalized anterior teeth implant - Google Patents

Abstract

The present invention relates to an implant, and more specifically, to a tooth having a thin thickness such as an anterior tooth or an alveolar bone lost due to periodontitis, a prosthetic tooth can be customized in a form similar to a natural tooth in a residual bone state without GBR Gt; implant. ≪ / RTI >

Description

A personalized anterior teeth implant < RTI ID = 0.0 >

The present invention relates to an implant, more specifically, a tooth having a thin thickness such as an anterior tooth and a bone alveolar bone loss due to periodontal disease can be customized in a form similar to a natural tooth in a residual bone state without GBR Lt; / RTI > implants.

Recently, gum disease patients are increasing due to wrong brushing. However, when an implant is applied to a patient with severe periodontal disease in which a large amount of alveolar bone has been lost due to gum disease, etc., the upper screw portion of the implant is exposed, the implant is not firmly planted, and foreign substances or bacteria are infiltrated into the exposed surface, There is a problem.

In addition, if the thickness of the alveolar bone to be implanted is thin and the density is low, the support portion of the implant can not be firmly supported, and the alveolar bone is broken.

Therefore, GBR (Guided Bone Regeneration) method has been proposed in which a prosthetic alveolar bone is formed by inserting a paste supplementally when the amount of alveolar bone is insufficient or the thickness is thin for implantation. The GBR treatment method is a method in which a titanium membrane 1 is fixed to an alveolar bone by a screw 3 to prevent separation of a paste P forming an artificial alveolar bone as shown in Fig. (P) is inserted and cured to form the artificial alveolar bone.

That is, the titanium membrane 1 is covered with the thin alveolar bone, and the membrane 1 is fixed by the screw 3 to form an internal space into which the paste P is to be inserted to prevent the paste from flowing out to the outside Method.

However, the GBR procedure has the following problems. In order to form a space into which the paste P is to be inserted into the membrane 1, the membrane 1 should be fixed so as not to sink into the alveolar bone. However, when the membrane is fixed using the conventional screw 3, there is a problem that deformation of the membrane 1 due to an external force externally applied can not be prevented. In addition, when the implant is applied to a patient having alveolar bone loss due to periodontal disease, the upper screw portion of the black implant is exposed to the gums, resulting in complaints to the patient. To solve these problems, it is necessary to perform procedures such as bone grafting and bone augmentation. However, such procedures may involve side effects and pain, and the treatment period and treatment cost are increased.

In order to solve such a problem, Patent Application No. 10-2008-0064064, as shown in Figs. 2A and 2B, includes a screw 40 to be placed in the alveolar bone, and a screw 40, which is connected to the screw 40 and is painted or plated An intermediate bridge 30 and an intermediate bridge including an upper bridge 10 connected to the screw 40 and the intermediate bridge 30 by a connecting member 20 , The object of the patented invention is to provide an implant suitable for a patient with severe periodontal disease in which alveolar bone is largely lost.

However, since the patented invention is fixed to the screw 50 by the connecting member 20 passing through the intermediate bridge 30 and the upper bridge 10, the upper bridge 10 is connected to the diameter of the connecting member 20 Of the thickness. Accordingly, not only the upper brim 10, which is an artificial tooth, is thick and unnatural, and thus can not be used for an anterior tooth having a thin tooth thickness. In addition, Angled abutment has many problems It is holding.

In addition, since the microgap is formed due to the connection with the connecting member 20, the microorganism grows and an odor or inflammation occurs. Further, since the screw is generally used as the connecting member 20 even if it is fixed, when the external force starts to be applied when starting to chew, there is a problem that the screw loosens and the connection structure is loosened or the screw is broken. This is improved by the development of a design in which an abutment of the abutment teeth is connected by appropriately adjusting the fastening force of the connecting screw in the early stage or forming a wedge-like sounding shape in the artificial root, but the untightening of the screw structure of the existing implant is not completely overcome.

Moreover, since the anterior part is a very important esthetically important part because people want to have a beautiful, beautiful and bright front teeth, the anterior part is completely different from the posterior root shape as an anterior root part, There has not been developed an implant having a design suitable for the implant.

Therefore, it is an object of the present invention to provide a bone-driven implant placement method and a method of implanting an implant in a residual bone state without GBR in a patient having an alveolar bone lost due to periodontitis, And to provide a customized anterior implant having a structure capable of fixing an artificial tooth by adjusting an upper abutment.

It is another object of the present invention to provide a customized anterior implant capable of performing natural implant treatment even in an anterior thin portion of teeth by not using a connecting member for fixing an intermediate abutment and an upper abutment to a fixture .

It is another object of the present invention to provide a dentistry cement composition for fixing an intermediate abutment and an upper abutment to prevent a microgap from occurring and preventing the propagation of germs, And the implantable implant is capable of solving the problem.

Another object of the present invention is to provide an upper abutment to which an artificial tooth is fixed by selecting a natural abutment shape in accordance with a position of a natural tooth, To provide a customized anterior prosthetic implant.

The object of the present invention is not limited to the above-mentioned objects, and although not explicitly mentioned, the object of the invention which can be recognized by a person skilled in the art from the description of the detailed description of the invention .

In order to achieve the objects of the present invention, first, the present invention provides a fixture for implantation into a alveolar bone, An intermediate abutment having a fixing part fixed to the fixture and a body part integrally connected to one end of the fixing part and having an insertion hole opened to an end side opposite to the fixing part; And an upper pawl portion including a projection inserted into the insertion hole and a tooth portion integrally connected to the projection and to which the artificial tooth is fixed.

In a preferred embodiment, the intermediate abutment and the upper pawl butt are fixed by processing the dental cement composition after inserting the protrusion into the insertion hole.

In a preferred embodiment, the intermediate abutment is a titanium material.

In a preferred embodiment, the intermediate abutment further comprises a coating layer on its surface that prevents titanium color from shining through the gums.

In a preferred embodiment, the body portion of the intermediate abutment is formed with various vertical lengths.

In a preferred embodiment, the upper puddle bitumen is zirconia.

In a preferred embodiment, the protrusion of the upper pawl butt is tapered.

In a preferred embodiment, the abutment portion of the upper piercing butt is different in size, length, width, and angle depending on the shape of the maxillary central incisor, maxillary lateral incisor, maxillary left and right canine, mandibular incisor and mandible right and left canine.

The present invention has the following effects.

First, according to the customized anterior implant according to the present invention, the implant is placed in the remaining bone state without GBR (bone-driven implant placement) in a patient where the anterior portion is damaged due to periodontitis and the remaining portion of the alveolar bone is replaced with an intermediate And has a structure capable of fixing an artificial tooth by adjusting a butt and an upper abutment.

In addition, according to the customized anterior prosthetic implant of the present invention, since the intermediate abutment and the upper abutment are fixed to the fixture, no connection member penetrating the intermediate abutment and the upper abutment is used, so that it is possible to perform a natural implant treatment even in an anterior portion having a thin tooth thickness.

According to the customized anterior implant according to the present invention, the intermediate abutment and the upper abutment are fixed with the dental cement composition to prevent micro gaps, thereby preventing the propagation of germs, The screw loosening phenomenon can be solved.

In addition, according to the customized anterior implant according to the present invention, the structure of the upper abutment to which the artificial tooth is fixed differs from tooth to tooth according to the position of the patient, As shown in FIG.

These technical advantages of the present invention are not limited to the above-mentioned technical scope, and even if not explicitly mentioned, the effect of the invention which can be recognized by a person skilled in the art from the description of the concrete contents for carrying out the invention Of course.

FIG. 1 is a cross-sectional view showing a GBR operation state for regenerating a lost alveolar bone in the prior art.
FIG. 2A is a cross-sectional view of an implant portion having a medial bridge in the prior art, and FIG. 2 is an exploded perspective view of the implant shown in FIG. 2A.
3 is an exploded perspective view of a customized anterior implant according to an embodiment of the present invention.
FIG. 4 is a schematic cross-sectional view of the implant shown in FIG. 3 in a state where the implant is applied to a patient who has lost anterior alveolar bone.
5 is a photographic view of an intermediate abutment of a customized anterior implant according to an embodiment of the present invention.
FIG. 6 is a photograph showing a shape change of an upper swinging butt of a customized anterior implant according to an embodiment of the present invention, according to an angle.
FIGS. 7A to 7G are actual photographs according to a plurality of embodiments of the top piercing butt of the customized anterior implant according to the embodiment of the present invention, respectively.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Accordingly, the terms used in the present invention should not be construed to be mere terms, but should be interpreted based on the ordinary meanings of the terms and contents described throughout the specification of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

Technical features of the present invention are that they can be firmly fixed to a fixture without using a connecting member passing through an intermediate abutment and an upper abutment. In other words, in the implants including the fixture, the intermediate abutment and the upper abutment which have been known in the art, various problems have occurred by using the connecting member passing therethrough.

In addition, the implant according to the present invention can be replaced with an intermediate abutment and an upper abutment fixed to the fixture placed in the residual bone in the residual bone state without GBR in the patient in which the alveolar bone is lost through the above structure, So that the artificial teeth can be fixed.

Therefore, the customized anterior implant according to the present invention can be applied to an anterior tooth having a thin tooth thickness through a structure in which an intermediate abutment and a fixture are fixed and an intermediate abutment and an upper abutment are fixed by a dental cement composition In addition, it has a structural feature that it can prevent the propagation of germs due to no micro clearance in the state of being installed in the oral cavity and can be firmly fixed without screw loosening.

3 to 7G, a customized anterior implant according to an embodiment of the present invention will be described.

A customized anterior implant 100 according to an embodiment of the present invention may include a fixture 110, an intermediate abutment 120 and an upper abutment (not shown), as shown in FIGS. 3 and 4, 130). FIG. 3 is an example of a typical embodiment, and FIG. 4 is an example of another embodiment of the present invention.

3, the fixture 110 is a component to be inserted into the alveolar bone of the patient. The fixture 110 is generally formed as a shaft having a cavity formed therein from the top to a predetermined length, However, the present invention is not limited to this, and any known type of implant fixture fixture can be used, so that the description of the structure of the fixture will be omitted.

Next, the intermediate abutment 120 includes a fixing portion 121 and a body portion 122, and the structure of the intermediate abutment 120 will be described in detail with reference to FIGS.

The fixing part 121 is a component that is coupled to a hollow thread formed inside the fixture 110 and fixes the intermediate abutment 120 to the fixture 110. Therefore, the fixing portion 121 of the intermediate abutment 120 may have a shaft-like shape, and may have a structure in which a thread is formed on the outer peripheral surface of the shaft-like shape, and may be deformed according to the hollow shape of the fixture 100. And the fixation portion 121 can have various shapes such as internal, external, and submerged type according to various implant manufacturer fixtures.

The main body 122 has a structure in which an insertion hole 122a, which is integrally connected to one end of the fixing portion 121 and opens toward the end portion opposite to the fixing portion 121, is formed. The insertion hole 122a is formed to have a diameter and a depth at which the protrusion 131 of the upper abutment 130 can be inserted. The insertion hole 122a and the protrusion 131 are coupled with each other by a tight fitting structure. The insertion hole 122a has a larger structure than the protrusion 131 because it is fixed using a dental cement composition. For example, in consideration of the thickness of the dental cement composition, the insertion hole 122a may have a diameter and a depth of about 15 to 30 mu m larger than the protrusion 131. The shape of the insertion hole 122a is not limited as long as the protrusion 131 can be inserted. However, the shape of the insertion hole 122a is not limited to the first hole having a tapered shape and the second hole having a small cylindrical shape, . Here, the second hole is for a hex driver for connecting and fixing the fixing portion 121 of the intermediate abutment 120 to the fixture 110, but a second hole for the hex driver may be formed under the first hole When the insertion hole 122a is formed, the second hole is filled with the dental cement composition, so that the fixing force can be more firmly applied to the protrusion 131 inserted into the first hole. If necessary, the sidewall of the first hole may be formed to have a rough and rough shape so that the protrusion 131 inserted into the first hole is more strongly fixed by the dental cement composition, as shown in FIG. .

The main body 122 may be formed to have a predetermined size with the insertion hole 122a itself opened at one end. However, the vertical length of the insertion hole 122a may be variously adjusted, Size can be adjusted. That is, the length and / or size of the body portion 122 may be long or large if the degree of dislocation of the alveolar bone is large according to the extent of the alveolar bone loss of the patient. If the degree of disappearance is small, the length and / I can do it. In one embodiment, the body portion 122 may have a vertical length of about 2 mm, 3 mm, 4 mm, 5 mm, and 6 mm, for example, ) May be formed and configured as a library.

The intermediate abutment 120 may be made of a titanium material which is harmless to the human body. In this case, when the intermediate abutment 120, which is made through the gum, is exposed due to the dark surface color of titanium, . Thus, a coating layer may be further formed on the intermediate abutment surface to prevent the titanium color from shining through the gums. The coating layer can be any known substance as long as it is harmless to the human body and it can solve the aesthetic problem by covering the surface color of titanium. However, when gold, which is a long dental material, is used, it is not harmless to the human body, It can be advantageous.

Next, the upper abutment 130 includes a protrusion 131 and a toothed portion 132, and the structure of the upper abutment 130 will be described in detail with reference to Figs. 3 and 6 to 7G.

The protrusion 131 is inserted into the insertion hole 122a of the intermediate abutment 120 to fix the intermediate abutment 120 and the upper abutment 130 through the dental cement composition. Accordingly, the size and shape are not limited as long as they can be inserted into the insertion hole 122a, but they may be tapered in consideration of the shape of the intermediate abutment 120, and the diameter and height ratio are not limited either. When the protrusion 131 is formed in a tapered shape, the protrusion 131 is easily inserted into the insertion hole 122a. However, when the protrusion 131 is coupled once, there is an advantage that the protrusion 131 is not easily removed.

The upper abutment 130 is not fixed to the intermediate abutment 120 using a screw but the dental cement composition is applied to the insertion hole 122a and the protrusion 131 is inserted into the insertion hole 122a Therefore, when the screw is used, the rotation angle of 60 degrees is fixed due to the hexa structure. However, since the protrusion 131 of the present invention can rotate 360 degrees, it is easy to adjust according to the oral condition of the patient .

The dental cement composition used herein may be any dental cement composition known in the art, for example, resin cement.

 As shown in FIGS. 6 to 7G, the abutment portion 132 is integrally connected to the protruding portion 131 to fix the artificial tooth. The abutment portion 132 includes a maxillary incisor, a maxillary lateral incisor, a maxillary left canine, a mandibular incisor, The length, the width, and the angle may be formed differently depending on the shape of any one of them. It is not necessary to consider screws or connection members that are passed through for fixing, so that the thickness of the tooth portion 132 does not need to be increased, so that the implant can be implemented to have the same outer shape as that of the adjacent teeth as shown in FIG. have.

More specifically, as shown in FIGS. 7A to 7G, as shown in FIGS. 7A to 7G, the shape is shown according to the maxillary central incisor, the maxillary lateral incisor, the maxillary left and right canine, the lower incisor and the mandible right and left canine, Even if the same maxillary incisors are used for each person, since the projected angles may be different considering the adjacent teeth of the patient, it can be configured to have three angles of 0 degree, 15 degrees, and 25 degrees. Thus, in one embodiment, the upper abutment 130 may be formed in various forms to have a library of different sizes, lengths, widths, and angles, so that the user can conveniently select the library.

As described above, according to the present invention, since the upper abutment 130 including the protruding portion 131 and the abutment portion 132 is formed integrally with the zirconia material, the present invention resembles a natural tooth shape as much as possible, In order to solve the various problems such as customized abutment which is used many times by individuals, such as the problems of the impression process, the manufacturing process of the laboratories, and the like, it is manufactured through various steps.

When the upper abutment 130 is formed of zirconia, the upper abutment 130 has a similar aesthetic effect to a natural tooth due to color and light transmittance generated due to the nature of the material, and is structurally stable and has sufficient rigidity.

With this structure, the upper abutment 130 of the present invention enables the upper design considering the patient-customized margin setting and the final prosthetic type, and the porcelain thickness of the final prosthesis can be kept constant, The risk of fracture upon mounting can be reduced.

The customized implant of the present invention having the above-described configuration can be practiced as follows. First, the fixture is placed 1 to 2 mm deeper than the bone level in consideration of bone absorption. After that, measure the length of the implant fixture up to 2 mm below the gingival margin, and then fix the fixture with the appropriate length of intermediate abutment in the library. Next, select the upper abutment at the appropriate angle in the upper abutment library and insert it. At this time, the upper abutment is selected in consideration of the harmony with the adjacent tooth correlated with the opposing tooth. Remove the inserted upper abutment once and then reattach it with the intermediate abutment and resin cement. (If necessary, temporarily fix the cement after attachment of the temporary cement. Immediately after placement, a temporary crown is made according to the general order, and when the osseointegration is completed about 3 months later, the final crown can be made and the implant procedure can be terminated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Various changes and modifications will be possible.

100: Customized anterior implant
110: Fixture 120: Intermediate abutment
121: fixing part 122:
122a: insertion hole 130: upper swelling buttment
131: protrusion 132:

Claims (8)

A fixture to be placed in the alveolar bone;
An intermediate abutment having a fixing part fixed to the fixture and a body part integrally connected to one end of the fixing part and having an insertion hole opened to an end side opposite to the fixing part; And
And an upper piercing butt joint having a protrusion inserted into the insertion hole and a tooth portion integrally connected to the protrusion to fix the artificial tooth,
Wherein the intermediate abutment and the upper pierced butt are fixed by processing the dental cement composition after inserting the protrusion into the insertion hole,
Wherein at least one of a vertical length and a size of the body portion of the intermediate abutment is formed in proportion to a degree of alveolar bone loss of the patient.
delete The method according to claim 1,
Wherein the intermediate abutment is a titanium material. The method of claim 3,
Wherein the intermediate abutment further comprises a coating layer on its surface that prevents titanium color from shining through the gum. ≪ RTI ID = 0.0 >< / RTI > The method according to claim 1,
Wherein the body portion of the intermediate abutment has a vertical length.
The method according to claim 1,
Wherein the upper pawl bit is made of zirconia.
The method according to claim 1,
Wherein the projecting portion of the upper piercing butt is tapered.
8. The method according to any one of claims 1 to 7,
Wherein the abutment portion of the upper pierced anchor is different in size, length, width, and angle depending on the shape of the maxillary central incisor, maxillary lateral incisor, maxillary left and right canine, mandibular incisor and mandible right and left canine.

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