KR20230108935A - A dowel pin for dental implant support structure and dental implant support structure comprising the same - Google Patents

Abstract

The present invention relates to a dowel pin for an artificial tooth support structure and an artificial tooth support structure including the same. Specifically, the present invention not only facilitates processing of artificial teeth, but also reduces processing time and cost of artificial teeth, improves dimensional accuracy of manufactured artificial teeth, and enables precise occlusion of teeth. It relates to a dowel pin for a tooth support structure and an artificial tooth support structure including the same.

Description

Dowel pin for artificial tooth support structure and artificial tooth support structure comprising the same {A dowel pin for dental implant support structure and dental implant support structure comprising the same}

The present invention relates to a dowel pin for an artificial tooth support structure and an artificial tooth support structure including the same. Specifically, the present invention not only facilitates processing of artificial teeth, but also reduces processing time and cost of artificial teeth, improves dimensional accuracy of manufactured artificial teeth, and enables precise occlusion of teeth. It relates to a dowel pin for a tooth support structure and an artificial tooth support structure including the same.

FIG. 1 schematically illustrates a state in which a conventional artificial tooth support structure is coupled to a dental articulator, and FIG. 2 schematically illustrates an exploded perspective view of the artificial tooth support structure shown in FIG. 1 .

As shown in FIG. 1, the conventional artificial tooth support structure 20 may be coupled to the upper and lower portions of the articulator 10, that is, to positions corresponding to the upper and lower jaws of the human body, and as shown in FIG. Similarly, the artificial tooth support structure 20 has a lower plate 21 fastened to the articulator 10 and a plurality of pins respectively inserted into a plurality of pinholes disposed on the lower plate 21 are disposed on the lower surface, It may include an artificial tooth support plate 22 to which the artificial tooth or its plaster model is adhered to the upper surface.

A dental technician may manufacture an artificial tooth using the articulator 10 and the artificial tooth support structure 20 through steps a) to h) below.

a) making an impression of a tooth to be replaced with an artificial tooth or an extracted gum and adjacent teeth using an impression material;

b) manufacturing plaster cast teeth using tooth patterns;

c) adhering and fixing the plaster model teeth on the artificial tooth support plate 22 of the artificial tooth support structure 20 coupled to the articulator 10;

d) cutting a part corresponding to a tooth to be replaced or implanted among plaster model teeth together with the artificial tooth support plate 22;

e) separating the cut artificial tooth support plate 22 from the lower plate 22 of the artificial tooth support structure 20;

f) replacing the plaster model teeth on the cut artificial tooth support plate 22 with a material for artificial teeth;

g) processing the material for the artificial tooth, and

h) examining occlusion with the articulator 10 while the artificial tooth support plate 21 on which the artificial teeth are formed is coupled to the lower plate 22;

In particular, by repeating the steps g) and h), the dental technician finally forms the artificial tooth through a process of checking the occlusion according to the degree of processing while processing the artificial tooth, so that the artificial tooth support plate 21 ) is repeatedly coupled to and separated from the lower plate 22.

Therefore, in order to improve the dimensional accuracy of the artificial teeth formed through this method and precisely check the occlusion of the teeth, the articulator 10 and the artificial tooth support structure 20, that is, the articulator 10 and the artificial tooth support structure 20 ) The lower plate 21, the lower plate 21 and the artificial tooth support plate 22, and the artificial tooth support plate 22 and the plaster model tooth or material for the artificial tooth must be firmly and densely coupled to each other, Mutual attachment and detachment of the lower plate 21 and the artificial tooth support plate 22 in the artificial tooth support structure 20 should be easy.

If the lower plate 21 and the artificial tooth support plate 22 are moved minutely in a coupled state, the dimensional accuracy of the artificial tooth formed using the lower plate 21 is lowered and the occlusion of the teeth cannot be precisely confirmed, If the lower plate 21 and the artificial tooth support plate 22 are not easily detached from each other, processing time and processing cost of the artificial tooth may increase.

Therefore, conventionally, there are cases in which the lower plate 21 is completely fixed to the articulator with plaster or adhesive. In this case, when manufacturing another artificial tooth after manufacturing one artificial tooth, the artificial tooth support plate 22 ) Only need to be replaced, but in this way, when the lower plate 21 and the artificial tooth support plate 22 are not manufactured as a pair but manufactured separately, the coupling between the lower plate 21 and the artificial tooth support plate 22 is strong. and may not be precise.

In addition, the conventional artificial tooth support structure 20 is usually made of plastic or metal material, and the plastic or metal material has a significantly reduced adhesive force with plaster model teeth or materials for artificial teeth, so that the artificial tooth support structure 20 A problem in which the gypsum model tooth or material for artificial teeth is separated from the artificial tooth support plate 22 of ) may occur.

Therefore, it is not only easy to process artificial teeth, but also can reduce the processing time and cost of artificial teeth, improve the dimensional accuracy of manufactured artificial teeth, and enable precise occlusion of teeth, a new type of artificial teeth. There is an urgent need for support structures.

An object of the present invention is to provide a dowel pin for an artificial tooth supporting structure for easy processing of an artificial tooth and an artificial tooth supporting structure including the same.

In addition, an object of the present invention is to provide a dowel pin for an artificial tooth support structure capable of reducing processing time and processing cost of an artificial tooth, and an artificial tooth support structure including the same.

In addition, an object of the present invention is to provide a dowel pin for an artificial tooth support structure and an artificial tooth support structure including the same, which improve the dimensional precision of artificial teeth and enable precise occlusion of the teeth.

In order to solve the above problems, the present invention,

A dowel pin for an artificial tooth supporting structure, comprising a protruding portion and a fastening portion, wherein a surface of the protruding portion is coated with at least one type of plating selected from the group consisting of nickel plating, chrome plating, and nickel-chromium plating.

Here, it provides a dowel pin, characterized in that the thickness of the plating layer by the plating is 15 to 25 ㎛.

In addition, it provides a dowel pin, characterized in that the inclined surface is formed at an angle of 1.0 to 3.0 ° on the protrusion.

On the other hand, a support plate to which the artificial tooth or its plaster model is adhered; and a base member fastened to the support plate, wherein a plurality of dowel pins according to claim 1 or 2 are provided on the lower surface of the support plate, and a hole into which the dowel pins are inserted is provided on the upper surface of the base member. Provided is an artificial tooth supporting structure provided with a plurality of holes into which holding dowel pin fastening parts are inserted and a dowel pin fastening part inserted into the holes.

Here, on the upper surface of the base member, a plurality of holes into which the dowel pin fastening part is inserted are disposed on the outside, and a plurality of holes into which support pins are inserted, a support pin inserted into the hole, and the support pin are disposed on the inside of the hole. It provides an artificial tooth support structure comprising a fixing pin for fixing, and a lower surface of the support plate comprising a support pin fastening groove into which the support pin is inserted.

In addition, the dowel pin fastening portion provides an artificial tooth support structure, characterized in that fixed by a fixing ring coupled to the dowel pin fastening portion in a state inserted into the hole.

And, in the dowel pin fastening part, the diameter of the hole into which the dowel pin is to be inserted decreases as it goes downward, and when the dowel pin is inserted into the hole, after a certain length is inserted, it is not inserted anymore due to the reduced diameter. To provide an artificial tooth support structure.

Furthermore, the diameter of the dowel pin fastening portion is 0.5 to 2% smaller than the diameter of the hole into which the dowel pin fastening portion is inserted in the base member, characterized in that it provides an artificial tooth support structure.

In addition, an empty space is provided at the lower part of the base member, and the empty space is filled with gypsum material to provide an artificial tooth support structure.

Here, it provides an artificial tooth support structure, characterized in that fine grooves are formed on the surface of the dowel pin fastening portion.

On the other hand, the support plate provides an artificial tooth support structure, characterized in that made of gypsum material.

And, the base member provides an artificial tooth support structure, characterized in that made of a metal material or a plastic material.

The dowel pin for an artificial tooth support structure according to the present invention facilitates the processing of an artificial tooth by a novel fastening method, structure and material, and at the same time shows an excellent effect of reducing processing time and processing cost of an artificial tooth.

In addition, the artificial tooth support structure according to the present invention exhibits an excellent effect of improving the dimensional accuracy of artificial teeth manufactured by solid and precise coupling of component parts and enabling precise occlusion of teeth.

1 schematically illustrates an occlusal system in which a conventional artificial tooth support structure is coupled to a dental articulator.
FIG. 2 schematically illustrates an exploded perspective view of the artificial tooth support structure shown in FIG. 1 .
Figure 3 schematically shows the configuration of the artificial tooth support structure according to the present invention.
FIG. 4 schematically shows the lower surface of the support plate in FIG. 3 .
FIG. 5 schematically shows the configuration of the base member in FIG. 3 .
FIG. 6 schematically shows a plan view and a cross-sectional view AA of the base member in FIG. 3 .
FIG. 7 is an enlarged view of the dowel pin in FIG. 3 .
Figure 8 schematically illustrates the manufacturing process of the artificial tooth support structure according to the present invention.
9 is a perspective view of the upper gypsum mold in which the base member is mounted in FIG. 8;

Hereinafter, preferred embodiments of the present invention will be described in detail. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete, and the spirit of the present invention will be sufficiently conveyed to those skilled in the art. Like reference numbers indicate like elements throughout the specification.

Figure 3 schematically shows the configuration of the artificial tooth support structure according to the present invention, Figure 4 schematically shows the lower surface of the support plate in Figure 3, Figure 5 is a configuration diagram of the base member in Figure 3 It is schematically shown, FIG. 6 is a schematic plan view and A-A cross-sectional view of the base member in FIG. 3, and FIG. 7 is an enlarged view of the dowel pin in FIG.

As shown in FIG. 3, the artificial tooth support structure according to the present invention is fastened to a dental articulator and a support plate 100 made of a gypsum material to which the artificial tooth or its plaster model can be firmly adhered, and is made of a metal or plastic material. It may include a base member 200 having an empty space in which gypsum material can be filled at the bottom.

4 and 5, on the lower surface of the support plate 100, the dowel pin 110 to be inserted into the dowel pin fastening part 210 of the base member 200 and the base member 200 ) It may include a support pin fastening groove 120 into which the support pin 240 is inserted.

In addition, on the upper surface of the base member 200, a plurality of holes into which the dowel pin fastening part 210 is inserted, which holds the hole into which the dowel pin 110 is inserted, are arranged on the outside, and the support is provided on the inside of the hole. A plurality of holes into which the pins 240 are inserted are arranged.

Here, the dowel pin fastening part 210 is fixed by the fixing ring 220 after being inserted into each of the plurality of holes, and the diameter of the hole into which the dowel pin 110 is to be inserted decreases as it goes downward, so that the dowel pin When 110 is inserted into the hole, it is no longer inserted due to the reduced diameter after a certain length is inserted.

In addition, the support pin 240 may be fixed by the fixing pin 230 after being inserted into each of the plurality of holes. For example, since the support pin 240 is provided with a groove into which the protruding pin of the fixing pin 230 can be inserted, the protruding pin of the fixing pin 230 is inserted into the groove of the support pin 240. It can be fastened to each other in such a way.

Thus, in the artificial tooth support structure according to the present invention, the artificial tooth or its plaster model is coupled to the upper surface of the support plate 100 in a state in which the support plate 100 is coupled to the base member 200, and the operator Of the artificial tooth or its plaster model, the artificial tooth or its plaster model to be processed is cut together with the support plate 100, and the artificial tooth or its plaster model to be processed is combined and the cut support plate (100 ) is separated from the base member 200 to process the artificial tooth or its plaster model to be processed.

Furthermore, as shown in FIG. 7, the dowel pin 110 for the artificial tooth support structure according to the present invention includes a fastening portion 112 fastened to the support plate 100 and a dowel pin fastening portion of the base member 200 ( A protrusion 111 inserted into 210 may be provided.

In particular, the dowel pin 110 for an artificial tooth support structure according to the present invention may be basically made of a plastic material such as acrylonitrile-butadiene styrene (ABS) resin, and the surface of the protrusion 111 is nickel plated, chrome It may be treated with plating, nickel-chromium plating, etc., where the thickness of the plating layer may be 15 to 25 μm. In addition, the protruding portion 111 may be formed as an inclined surface having a constant angle θ, where the constant angle θ may be about 1.0 to 3.0°.

Specifically, since the dowel pin 110 for an artificial tooth support structure according to the present invention is basically made of a plastic material, the manufacturing cost is lower than that of a conventional metal dowel pin, and the surface of the protrusion 111 is plated with nickel, By forming a plating layer such as chrome plating or nickel-chrome plating, insufficient hardness of the plastic material can be improved to avoid or minimize damage when the dowel pin 110 is repeatedly attached and detached from the dowel pin fastening part 210, and friction Reducing the coefficient can facilitate desorption.

In addition, the support plate 100 to which the fastening part 112 of the dowel pin 110 for the artificial tooth support structure is fastened is made of gypsum material, and after placing a plurality of dowel pins 110 inside the gypsum mold, the liquid phase It is manufactured through the process of curing the gypsum material in a filled state. When the gypsum material is cured, the central axis of the designed dowel pin 110 moves slightly due to the gypsum expansion, and as a result, the center of the dowel pin 110 The shaft and the central axis of the dowel pin fastening part 210 are misaligned, so that one side of the surface of the protruding part 111 of the dowel pin 110 is in excessive contact with one side of the inner surface of the dowel pin fastening part 210, and stress is applied. As a result, dimensional accuracy may be lowered and it may not be easy to attach or detach the dowel pin to the dowel pin fastening part 210 .

Therefore, the present inventor applies an inclined surface of a certain angle to the protruding portion 111 of the dowel pin 110, so that the support plate 100 is fastened to the fastening portion 112 of the dowel pin 110 and made of gypsum material. The dowel pin ( The present invention was completed by confirming that the protruding portion 111 of 110) can be easily attached to and detached from the dowel pin fastening portion 210.

For example, the gypsum material constituting the support plate 100 may have an expansion rate of about 0.02 to 0.15%, preferably 0.03 to 0.06%, and the straight length of the overall U-shaped support plate 100 is about On the premise that it is 100 to 120 mm, preferably 112 to 115 mm, the central axis movement distance of the dowel pin 110 considering the expansion rate and the straight line length when the gypsum material is expanded by hardening is about 0.01 to 0.02 mm, In particular, it may be between 0.017 and 0.019 mm. On this premise, if the length of the protrusion 111 is about 0.8 to 1.2 mm, when half of it, 0.4 to 0.6 mm, is lifted from the dowel pin fastening part 210, the stress applied to the dowel pin 110 can be removed. The angle of the inclined plane applied to the surface of the protrusion 111 of the dowel pin 110 may be designed to be about 1.0 to 3.0°.

8 schematically illustrates a manufacturing process of an artificial tooth support structure according to the present invention, and FIG. 9 is a perspective view of an upper gypsum mold in which a base member is mounted in FIG. 8 .

Specifically, as shown in FIGS. 8A to 8D and 9 , the base member to which the dowel pin 110 is coupled to each hole of the dowel pin fastening part 210 in the empty space inside the gypsum mold 300 ( 200) is seated, the upper part of the base member 200 is filled with liquid gypsum material, and then the supporting plate 100 of the gypsum material is formed by hardening it while applying pressure.

Here, the gypsum mold 300 includes an upper mold 310 provided with an empty space in which the base member 200 is seated, a lower mold 320 supporting the lower part of the base member 200, and the upper mold ( 310) includes a pressure member 400 for applying pressure to the gypsum material when the gypsum material filled on the base member 200 seated in the empty space is cured, and the lower mold 320 includes the base member 200 A support member 321 equipped with a plurality of pins supporting the lower portion of the dowel pin 110 and the lower portion of the fixing pin 230, respectively, coupled to each hole of the dowel pin fastening portion 210 of ) may be provided. there is.

As shown in FIG. 8B, after filling the liquid gypsum material on the base member seated in the empty space inside the gypsum mold 300, as shown in FIGS. 8C and 8D, pressure is applied to the liquid gypsum material. The gypsum material is partially cured while the member 400 is raised and pressure is applied to the liquid gypsum material.

As shown in FIG. 8E, after the upper mold 310 is separated from the lower mold 320 before the gypsum material is completely hardened, as shown in FIG. 8F, the lower bin of the base member 200 By filling and hardening the liquid gypsum material 250 in the space, the artificial tooth support structure according to the present invention is manufactured.

Since gypsum material has a property of expanding during hardening, when the gypsum material filled on the base member 200 hardens, the dowel pin 110 coupled to the gypsum material moves minutely. The dowel pin fastening part 210 to which this is fastened has a diameter that is about 0.5 to 2% smaller than the diameter of the hole coupled to the base member 200, so that it can adapt to the minute movement of the dowel pin 110.

In addition, the gypsum material filled in the lower empty space of the base member 200 is hardened, so that the dowel pin fastening portion adapts to the minute movement of the dowel pin 110 according to the hardening of the gypsum material filled on the base member 200. It can support and minimize the movement of 210. Here, fine grooves are formed on the surface of the dowel pin fastening part 210 to support and minimize the movement of the dowel pin fastening part 210 when the gypsum material filled in the lower empty space of the base member 200 is cured. The effect can be further enhanced.

Meanwhile, the fixing pin 230 and the support pin 240 are filled in the gypsum material filled in the lower empty space of the base member 200 and the upper portion of the base member 200, respectively, to form the support plate 100. By supporting the gypsum material forming the function of minimizing the expansion during curing of the gypsum material.

Thus, the artificial tooth support structure according to the present invention facilitates processing of artificial teeth by using a new fastening method, structure, and material, and at the same time reduces processing time and cost of artificial teeth, and provides a strong and precise combination of component parts. It shows an excellent effect of improving the dimensional precision of artificial teeth manufactured by and enabling precise occlusion of teeth.

Although this specification has been described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims described below. will be able to carry out Therefore, if the modified implementation basically includes the elements of the claims of the present invention, all of them should be considered to be included in the technical scope of the present invention.

100: support plate 200: base member
300: gypsum mold 400: pressure member

Claims (12)

As a dowel pin for an artificial tooth support structure,
Including protrusions and fastening parts,
The surface of the protruding portion is applied with at least one type of plating selected from the group consisting of nickel plating, chrome plating, and nickel-chromium plating. According to claim 1,
The dowel pin, characterized in that the thickness of the plating layer by the plating is 15 to 25 ㎛. According to claim 1 or 2,
Characterized in that the protruding portion is formed with an inclined surface at an angle of 1.0 to 3.0 °, dowel pin. A support plate to which the artificial tooth or its plaster model is adhered; and
Including a base member fastened to the support plate,
A plurality of dowel pins of claim 1 or 2 are provided on the lower surface of the support plate,
The upper surface of the base member is provided with a plurality of holes into which the dowel pin fastening portion holding the hole into which the dowel pin is inserted, and the dowel pin fastening portion inserted into the hole, the artificial tooth support structure. According to claim 4,
A plurality of holes into which the dowel pin fastening part is inserted are disposed on the outer side of the upper surface of the base member,
The inner side of the hole includes a plurality of holes into which support pins are inserted, a support pin inserted into the hole, and a fixing pin for fixing the support pin,
Characterized in that the lower surface of the support plate includes a support pin fastening groove into which the support pin is inserted, the artificial tooth support structure. According to claim 4,
The artificial tooth support structure, characterized in that the dowel pin fastening portion is fixed by a fixing ring coupled to the dowel pin fastening portion in a state inserted into the hole. According to claim 4,
In the dowel pin fastening part, the diameter of the hole into which the dowel pin is to be inserted decreases as it goes downward, and when the dowel pin is inserted into the hole, after a certain length is inserted, it is not inserted anymore due to the reduced diameter , artificial tooth support structures. According to claim 4,
The diameter of the dowel pin fastening part is 0.5 to 2% smaller than the diameter of the hole into which the dowel pin fastening part is to be inserted in the base member, characterized in that holding the artificial tooth support structure. According to claim 4,
An empty space is provided at the bottom of the base member,
Artificial tooth support structure, characterized in that the gypsum material is filled in the empty space. According to claim 9,
Characterized in that a fine groove is formed on the surface of the dowel pin fastening portion, artificial tooth support structure. According to claim 4,
The support plate is characterized in that made of gypsum material, artificial tooth support structure. According to claim 4,
The base member is characterized in that made of a metal material or a plastic material, artificial tooth support structure.