KR20210120677A - Auxiliary unit for impression acquisitioning of implant - Google Patents

Abstract

The present invention relates to an auxiliary unit for impression acquisitioning of an implant, and more specifically, to an auxiliary unit for impression acquisitioning of an implant. According to an embodiment of the present invention, the auxiliary unit for impression acquisitioning of the implant includes: a coupling part through which a fastening hole is formed and is coupled by a screw and a fixture placed in an alveolar bone; and a plate part detachably coupled to the coupling part, wherein the plate part is laminated on an upper surface of the coupling part in one or multiple stages according to a separation distance between the coupling part and opposing teeth. Therefore, since height is adjustable, operator's convenience can be improved.

Description

Impression taking aid for implants

The present invention relates to an impression taking aid for implants, and more particularly, to an impression taking aid for implants for acquiring an impression of an opposing tooth by being coupled to a fixture.

A dental implant refers to an artificial tooth structure or a surgical method that is implanted in a portion where natural teeth are lost as a whole to replace teeth.

The implant is placed in the alveolar bone of the recipient and is interposed between the fixture, which is a structure corresponding to the root of a natural tooth, a crown, which is a structure corresponding to the crown of a natural tooth, and an abutment ( Abutment). At this time, the appearance of the crown is determined by the shape of the opposing teeth that occlude the missing teeth.

In order to manufacture the crown, the impression taking process of acquiring information on the opposing tooth using an impression material is essential. After the auxiliary tool is fastened to the fixture with the fixture placed in the alveolar bone of the subject, the impression material is placed on it to take the impression. Conduct.

At this time, as the thickness of the impression material placed on the auxiliary tool becomes thicker, the error in crown manufacturing may increase, so it is preferable to proceed with the impression taking with the optimum thickness (0.5 to 1.5 mm). Since it is formed in an impossible structure, the operator has the inconvenience of having to repeat the process of finding an auxiliary tool of a suitable height for the person to be treated while changing the auxiliary tools of various heights one by one.

Accordingly, there has been a demand for an impression taking aid for implants capable of height adjustment.

The technical problem to be achieved by the present invention is to provide an impression taking aid for implants capable of height adjustment.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. There will be.

In order to achieve the above technical object, an embodiment of the present invention includes a coupling part through which a fastening hole is formed and coupled by a screw and a fixture implanted in the alveolar bone, and a plate part detachably coupled to the coupling part, and the plate part It provides an impression taking aid for implants that are stacked on the upper surface of the coupling part in one or multiple stages according to the separation distance between the coupling part and the opposing teeth.

In one embodiment of the present invention, the coupling portion is formed to extend in the first direction from the upper surface of the lower column and the lower column in the form of a polygonal column that can be inserted into the upper end of the fixture, the intermediate column having a gradually increasing cross-sectional area, and the middle It may include an upper column formed extending in the first direction from the upper surface of the column.

In one embodiment of the present invention, the upper column has a first coupling groove having a wider diameter than the fastening hole on the upper surface is recessed around the fastening hole, and a pair of first coupling grooves are formed along the second direction perpendicular to the first direction. 2 coupling grooves are recessed, the second coupling grooves have a structure symmetrical to each other with respect to the first coupling grooves, and a first coupling protrusion capable of being engaged with the first coupling recesses is formed on the lower surface of the plate portion to protrude, and the second coupling grooves are formed to protrude. A pair of second coupling protrusions that can be engaged with the grooves are formed to protrude, and a third coupling groove corresponding to the first coupling protrusion and a pair of fourth coupling grooves respectively corresponding to the second coupling protrusions may be recessed in the upper surface. .

In one embodiment of the present invention, a pair of reference grooves having a triangular cross section over the upper surface and the side surface of the coupling part and the plate part are recessed, and may be disposed opposite to each other.

In one embodiment of the present invention, the upper surface of the coupling portion and the upper and lower surfaces of the plate portion may be tapered inclined surfaces along the edges.

According to an embodiment of the present invention, since the present invention can adjust the height in a state fastened to the fixture, the operator's convenience can be improved.

The effects of the present invention are not limited to the above effects, but it should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is an exploded view showing an impression taking aid according to a first embodiment of the present invention.
Figure 2 is a plan view showing a coupling portion of the impression taking aid according to the first embodiment of the present invention.
3 is a plan view showing the plate portion of the impression taking aid according to the first embodiment of the present invention.
4 is an exploded view showing an impression taking aid according to a second embodiment of the present invention.
5 is a plan view showing a coupling portion of the impression taking aid according to the second embodiment of the present invention.
Figure 6 is a state diagram of the use of the impression taking aid according to the first embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in several different forms, and thus 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 attached to similar parts throughout the specification.

Throughout the specification, when a part is said to be “connected (connected, contacted, coupled)” with another part, it is not only “directly connected” but also “indirectly connected” with another member interposed therebetween. Including cases where In addition, when it is said that a part "includes" a certain component, it means that other components may be further provided without excluding other components unless otherwise stated.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

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

1 is an exploded view showing an impression taking assisting tool 1 according to a first embodiment of the present invention.

Impression taking aid (1) serves to support the impression material (I) for taking impressions of the lost teeth and the corresponding opposing teeth, and the coupling portion 10 and the coupling portion coupled to the fixture (F) placed in the alveolar bone It may include one or more plate portions 20 detachably coupled to the upper portion of the portion 10 to support the impression material (I). At this time, the coupling part 10 and the plate part 20 may be made of a material harmless to the human body, such as ceramic, metal, or metal alloy.

On the other hand, the plate part 20 may be laminated on the upper surface of the coupling part 10 in one or multiple stages according to the separation distance between the coupling part 10 and the opposing teeth, and in this case, the upper surface of the plate part 20 located in the uppermost layer The impression material (I) may be disposed.

Hereinafter, the coupling unit 10 will be described with reference to FIG. 2 .

The coupling part 10 may be formed through the fastening hole 11 in the first direction, and may be coupled with the fixture F implanted in the alveolar bone by the screw S inserted into the fastening hole 11 . At this time, the fastening hole 11 may be formed in the shape of a circular column, and a screw thread engaged with the screw S may be formed along the inner periphery.

The coupling portion 10 has a shape corresponding to the groove formed at the upper end of the fixture (F), and the lower column 12 through which the fastening hole 11 is formed in the first direction, and the second in the upper surface of the lower column 12 . It is formed to extend in one direction, is formed to extend in the first direction from the upper surface of the intermediate pillar 13 and the intermediate pillar 13 having a gradually increasing cross-sectional area, and may include an upper pillar 14 having a constant cross-sectional area. have.

The intermediate column 13 has a cross-sectional area that gradually increases from one end connected to the lower column 12 to the other end connected to the upper column 14, and the side portion can be rounded to prevent damage to the gums or adjacent teeth. have.

The upper pillar 14 is formed by extending from the other side of the square plate member 141, the first semi-circular plate member 142 formed by extending from one side of the square plate member 141, and the square plate member 141. , may be divided into a second semi-circular plate member 143 symmetrical to the first semi-circular plate member 142 with the square plate member 141 interposed therebetween. That is, the upper pillar 14 may be formed in a circular flat plate shape in which one side and the other side parallel to it are cut off.

For this reason, the operator can change the direction of the coupling portion 10 according to the size of the space in which the teeth are to be implanted. When sufficient space is secured, the first semi-circular flat plate member 142 and the second semi-circular flat plate member 143 may be disposed to face different adjacent teeth, respectively. The semi-circular flat plate member 142 and the second semi-circular flat plate member 143 may be disposed to face the lingual side and the ball side, respectively.

On the other hand, the height of the lower pillar 12 may vary depending on the height of the groove formed at the upper end of the fixture (F), and the combined height (b) of the middle pillar 13 and the upper pillar 14 may be 4mm to 6mm. . If the combined height of the middle column 13 and the upper column is less than 4 mm, the height is too low and a large number of plate portions 20 may be required, and if it exceeds 6 mm, it may be higher than the height of the adjacent teeth.

Hereinafter, the plate part 20 will be described with reference to FIG. 3 .

The plate portion 20 may be detachably coupled to the coupling portion 10 at the lower portion, and the impression material I may be disposed on the upper portion.

The plate part 20 is formed by extending from the other side of the square plate member 21, the first semicircular plate member 22 extending from one side of the square plate member 21, and the other side of the square plate member 21. , it can be divided into a second semi-circular plate member 23 symmetrical to the first semi-circular plate member 22 with the square plate member 21 interposed therebetween. That is, the plate part 20 may be formed in a circular flat plate shape in which one side and the other side parallel to it are cut off.

The height (a) of the plate part 20 may be 1 mm to 3 mm. If the height of the plate portion 20 is less than 1 mm, it may be easily damaged during coupling or separation to the coupling portion 10, and if it exceeds 3 mm, the precision of height adjustment may be deteriorated.

According to an embodiment of the present invention, the upper surface of the upper column 14 and the upper and lower surfaces of the plate portion 20 may be respectively formed with tapered inclined surfaces 144 and 24 along the edges. A separation groove may be formed between the coupling portion 10 and the plate portion 20 by the tapered inclined surfaces 144 and 24 and between a pair of mutually adjacent plate portions 20, and the user can use the separation groove to relatively The coupling part 10 and the plate part 20 or a pair adjacent to each other can easily separate the plate part 20 .

Hereinafter, a coupling structure between the coupling part 10 and the plate part 20 will be described.

The upper column 14 may have a circular column-shaped first coupling groove 1411 having a larger cross-sectional area than the fastening hole 11 on the upper surface of the square plate member 141 , and may be recessed around the fastening hole 11 . .

In addition, in the upper column 14 , a pair of second coupling grooves 1412 are spaced apart from each other and recessed in a second direction perpendicular to the first direction on the upper surface of the square plate member 141 . At this time, the first coupling groove 1411 is formed in the center of the upper surface of the square flat plate member 141, and the second coupling groove 1412 is on the upper surface of the square flat plate member 141 and the boundary with the semi-circular flat plate members 142 and 143. It is formed along the, and may be formed to be symmetrical to each other with respect to the first coupling groove (1411).

The plate part 20 has a pair of first coupling protrusions 211 that can be coupled to the first coupling groove 1411 on the lower surface of the square plate member 21 protrudingly, and can be coupled to the second coupling recess 1412, respectively. of the second coupling protrusion 212 may be formed to protrude. At this time, the first coupling protrusion 211 is formed in the center of the lower surface of the square flat plate member 21, and a pair of second coupling protrusions 212 are formed on the lower surface of the square flat plate member 21 by a semi-circular plate member 22, 23) and may be formed to be symmetrical to each other with respect to the first coupling protrusion 211 .

That is, the coupling part 10 and the plate part 20 are coupled by the first coupling groove 1411 and the first coupling protrusion 211 , the second coupling groove 1412 and the second coupling protrusion 212 . can

Hereinafter, a coupling structure between a pair of adjacent plate portions 20 will be described.

The plate portion 20 has a first coupling protrusion 211 and a third coupling groove 213 corresponding to the upper surface of the square plate member 21 recessed, and a pair of corresponding second coupling protrusions 212, respectively. The fourth coupling groove 214 of the may be recessed. At this time, the third coupling groove 213 may be formed in the center of the upper surface of the square flat plate member 21 , and the fourth coupling groove 214 is semi-circular flat plate members 22 and 23 on the upper surface of the square flat plate member 21 . ) can be formed along the boundary with

That is, the pair of adjacent plate portions 20 may be coupled by the first coupling protrusion 211 and the third coupling groove 213 , the second coupling protrusion 212 and the fourth coupling groove 214 . have.

According to an embodiment of the present invention, one or more guide grooves 221 serving as a reference for confirming the position of the plate part 20 may be recessed or protruded on the upper surface.

In addition, the plate unit 20 may be formed with a pair of reference grooves 215 for guiding the reference coordinate value setting position when scanning the impression material on the square plate member 21 .

The reference groove 215 may be recessed over the upper surface and the side surface in the space between the pair of fourth coupling grooves 214, and may be disposed symmetrically with the third coupling groove 213 interposed therebetween. In this case, the reference groove 215 may have a cross section of an equilateral triangle or an isosceles triangle, and may be disposed so that the vertices face each other.

That is, the rectangular flat plate member 21 may have a third coupling groove 213 formed in the center of the upper surface, and a pair of second coupling grooves 213 may be formed in parallel along the boundary surface with the semi-circular flat plate members 22 and 23 on one side and the other side of the upper surface. Four coupling grooves 214 may be formed, and a pair of reference grooves 215 may be formed on the front and rear sides of the upper surface.

On the other hand, it goes without saying that the coupling portion 10 may also have a reference groove 1414 and a guide groove 1415 having the same function.

4 is an exploded view showing an impression taking assisting tool 1 according to a second embodiment of the present invention.

With respect to the second embodiment, a description of the same configuration as that of the first embodiment will be omitted, and a configuration added or changed in the corresponding embodiment will be mainly described.

The impression taking aid 1 is disposed between the coupling part 10 and the plate part 20, and may further include a departure part 30 for releasing these couplings as necessary, and the upper pillar 14 The detachable part 30 can be seated in the lower portion of the silver first coupling groove 1411 , and a seating groove 1413 having an open structure so that the detachable part 30 can be separated can be formed as needed.

Referring to FIG. 5 , the seating groove 1413 has a smaller cross-sectional area than the first coupling groove 1411 , but has a larger cross-sectional area than the fastening hole 11 , and is formed on the bottom surface of the first coupling groove 1411 . A first groove member 1413a and a second groove member 1413b formed in a straight line from the center to the side surface of the upper pillar 14 and having a bottom surface at the same height as the first groove member 1413a may be included.

The first groove member 1413a may be formed around the fastening hole 11 . In other words, the fastening hole 11 , the first coupling groove 1411 , and the first groove member 1413a may form a multi-stage structure, and their centers may be located on the same line with each other.

In addition, the first groove member 1413a may be formed in a rectangular column shape, and the body diameter hole 11 and the first coupling groove 1411 may be formed in a circular column shape. In this case, the fastening hole 11 may be inscribed with the bottom surface of the first groove member 1413a , and the first groove member 1413a may be inscribed with the bottom surface of the first coupling groove 1411 .

On the other hand, the departure part 30 may be formed to have the same height as the height of the first groove member 1413a, and the support member 31 and the support member 31 in the shape of a rectangular column seated on the first groove member 1413a. ) connected to one side, and may include a pressing member 32 seated on the second groove member 1413b. At this time, one region of the pressing member 32 may protrude to the outside of the second groove member 1413b.

Accordingly, the operator may seat the detachment portion 30 in the seating groove portion 1413, and then couple the plate portion 20 to the coupling portion 10, and then, when the impression taking process is completed, the detachment portion 30 is removed. It is possible to separate the plate portion 20 located on the upper portion of the coupling portion 10 by pressing downward.

6 is a state diagram of the use of the impression taking assisting tool 1 according to the first embodiment of the present invention.

After the operator fastens the coupling part 10 using a screw to the fixture (F), one or more plate parts 20 on the upper surface of the coupling part 10 according to the separation distance between the coupling part 10 and the opposing tooth T ), and placing the impression material on the upper surface of the plate part 20 located on the uppermost layer, the impression taking process can be performed.

In the present invention, since the height of the surface supporting the impression material is adjustable according to the number of couplings of the plate portion 20, the error rate of crown manufacturing is reduced, and the operator's convenience can be improved.

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 be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

1: Impression taking aid for implant
10: coupling part
20: plate part

Claims (5)

In an impression taking aid for implants comprising a coupling part through which a fastening hole is formed and coupled by a screw to a fixture placed in the alveolar bone, and a plate part detachably coupled to the coupling part,
The plate part,
Impression taking aid for implants, characterized in that stacked on the upper surface of the coupling part in one or multiple stages according to the separation distance between the coupling part and the opposing teeth.
According to claim 1,
The coupling part,
A lower column in the form of a polygonal column that can be inserted into the upper end of the fixture,
an intermediate column extending in the first direction from the upper surface of the lower column and having a gradually increasing cross-sectional area;
Impression taking aid for implant, characterized in that it comprises an upper column formed extending in the first direction from the upper surface of the intermediate column.
3. The method of claim 2,
The upper column is
A first coupling groove having a larger diameter than the fastening hole is recessed around the fastening hole on the upper surface, and a pair of second coupling grooves are recessed along a second direction perpendicular to the first direction,
The second coupling groove has a structure symmetrical to each other with respect to the first coupling groove,
The plate part,
A first coupling protrusion capable of being engaged with the first coupling groove is protruded from the lower surface, and a pair of second coupling protrusions capable of being engaged with the second coupling groove are formed to protrude,
Impression taking aid for implants, characterized in that a pair of fourth coupling grooves respectively corresponding to the third coupling groove and the second coupling projection corresponding to the first coupling protrusion are recessed in the upper surface.
According to claim 1,
The coupling part and the plate part,
A pair of reference grooves having a triangular cross section over the upper surface and the side surface are recessed, characterized in that they are disposed opposite to each other, impression taking aid for implants.
According to claim 1,
The upper surface of the coupling part and the upper and lower surfaces of the plate part, an impression taking aid for implant, characterized in that a tapered inclined surface is formed along the edge.

Images