JPH0429609Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a pattern supplementary seal for dental techniques, and more specifically, in the field of dental techniques, it is used for casting inlays, crowns, continuous teeth, veneers, etc. It is used as a pre-treatment when casting crown restorations, and in particular, it simplifies the work of supplementing the loss during polishing of cast crown restorations.
The present invention also relates to a pattern supplementary seal for dental techniques that can be cast with a uniform thickness.

[Conventional technology]

Conventionally, in the field of dental technology, crown restorations such as inlays, crowns, continuous teeth, and veneers have been manufactured by casting.

Most of these cast dental crown restorations are manufactured by forming a pattern using wax or pattern resin, and then replacing the pattern with metal by casting.

The finished cast crown restoration is polished and placed in the dentition, but the volume is lost during this process. Therefore, before casting, necessary parts of the pattern are supplemented by supplementary processing to make the pattern larger.

Figures 4 to 6 are explanatory diagrams of conventional examples;
The figure shows the standard occlusal state of the upper and lower tooth rows in the molar region, FIG. 5 is a perspective view of the tooth row working model, and FIG. 6 is an explanatory diagram of the pattern and the contact surface of the cast crown restoration. .

As shown in FIG. 4, in the normal case, the crown restoration 36 must be in close contact with the adjacent tooth 37.

In addition, on the occlusal surface, most of the opposing teeth and the basal surface of the bridge pontic for prosthesis of the defective part must be in contact with the alveolar mucosa.

Therefore, conventionally, as shown in FIG. 6, a process is performed to supplement the pattern to compensate for the loss.

Figure 6 A is a diagram showing the contact surface of the molar teeth.
B shows a side view of the anterior teeth, C shows a perspective view of the molar ponte, and D shows a plan view of the molar occlusal surface.
Additions will be made to numbers 0-34.

This supplementation has been done by adding melted wax, extra pattern resin, or applying a highly viscous liquid such as nail polish to predetermined locations of the pattern 38.

In the case of the base surface 32 of the pontic shown in (c), the mucosa part 3 of the dentition work model shown in FIG.
This was supplemented by removing the number 5 and making the pattern larger.

[The problem that the idea aims to solve]

The above-mentioned conventional devices had the following drawbacks.

(1) In the method of adding molten wax, the heat of the added wax and the instrument melts or deforms a part of the pattern that has been painstakingly and precisely finished.

(2) Methods of applying viscous and fluid liquids, such as nail polish, result in the pattern being buried in an undried state, causing the applied material to run off and roughen the casting surface.

(3) In the methods shown in (1) and (2) above, or in the method of applying extra pattern resin, the applied thickness is not constant and becomes non-uniform.

(4) The method of scraping the mucous membrane part of the dentition working model is rough.

Therefore, there is always an excess or deficiency in the contact surface of the cast crown restoration. When there is not enough, the pattern must be recreated from the previous stage, and when there is too much, a metal crown restoration that is cast is used to accurately fit the adjacent tooth, opposing tooth, mucosal surface, etc. Grind it to match the tooth row.

This work required precision and required a great deal of time and effort to make adjustments.

Additionally, there was a lot of loss in the precious metals used as raw materials, resulting in a waste of resources.

(5) Placing an inaccurate crown prosthesis in the oral cavity will have a negative impact on the patient's other teeth and mucous membranes.

The present invention eliminates these conventional drawbacks, simplifies the work of supplementing the pattern for the loss during polishing of cast crown restorations, and makes it possible to supplement the pattern with a uniform thickness at low cost. The purpose is to

[Means to solve the problem]

In order to achieve the above object, the present invention is as follows.

The pattern supplementary seal for dental techniques according to the present invention corrects the loss of the cast dental crown restoration due to polishing and then casts it, so that it can be used between adjacent teeth, opposing teeth, or mucosal surfaces in the dentition. This is to prevent gaps from forming.

In other words, in a pattern supplement sticker for dental technology that is used by pasting it on a predetermined part of a pattern to compensate for loss when polishing a cast dental crown restoration, an adhesive layer and a base material are placed on a release sheet. A plurality of sets of the adhesive layer and the base material layer are laminated by alternately stacking the layers, and further, a cut penetrating the adhesive layer and the base material layer is formed around the arbitrarily shaped contact surface shape part. It has been established.

Further, the contact surface shape portion having an arbitrary shape is configured such that adhesive layers and base material layers are stacked alternately, and a plurality of sets of the adhesive layer and the base material layer are laminated. , provided on a release sheet.

[Effect]

With the above configuration, uniform thickness can be achieved by simply peeling off the contact surface shaped portion from the release sheet and pasting it on the pattern.

Moreover, even if the thickness of the supplement increases, since the adhesive layer is interposed between the base material layers, the necessary thickness can be supplemented without impairing flexibility.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a configuration diagram of a first embodiment of a pattern supplementary seal for dental technology according to the present invention, in which A is an overall perspective view and B is a partially enlarged sectional view taken along the X-Y line.

In the figure, 1 is a pattern supplementary seal, 2 is a release sheet, 3 is an adhesive layer, 4 is a base material layer, and 5 is a cut.

The pattern supplementary sticker 1 is placed on the release sheet 2,
forming an adhesive layer 3, providing a base layer 4 thereon, and forming the adhesive layer 3 on the base layer 4;
Furthermore, a base material layer 4 is provided thereon, and a large number of cuts 5 are provided so that it can be peeled off as a seal in a predetermined shape.

That is, a plurality of adhesive layers 3 and base material layers 4 are alternately laminated on a release sheet 2, and a contact surface shape portion 6 corresponding to the contact surface on the outer surface of the cast dental crown restoration is molded. A pattern supplementary sticker 1 is made by providing a cut 5 for the pattern.

The contact surface shaped portion 6 is provided with a cut 5 around it in a closed loop shape and deep enough to reach the release sheet 2 from the top surface so that it can be used after being peeled off from the release sheet 2.

When this contact surface shape part 6 is peeled off from the release sheet 2, two sets of the adhesive layer 3 and the base material layer 4 are laminated and can be taken out as a whole, so it can be pasted on a predetermined part of the pattern. You can make up for the loss.

In the end, the contact surface shaped parts 6 formed in large numbers on the pattern supplementary sticker 1 described above were peeled off one by one (two sets of base material layer 4 and adhesive layer 3 were laminated and integrated). By adhering it closely to the required part of the pattern, burying it, incinerating it, and casting it, it is possible to cast a cast dental crown restoration with a certain thickness.

The contact surface shaped portion 6 has various shapes, such as a fava bean shape in which a part of an ellipse is recessed, an elongated oval shape, a shape in which a part of an ellipse is protruded, and a circular shape.

The base material layer 4 is made to have a thickness of, for example, about 30μ to 50μ so that it can adhere to the curved surface of a small tooth surface with flexibility (if there are two sets of base material layer and adhesive layer) ).

In addition, the material used is polyethylene sheet, and the inner surface is treated with corona to strengthen the adhesive strength with the adhesive.

The adhesive layer 3 is made of coreless natural rubber and acrylic mixed one-component solvent type having a thickness of 25 μm to 40 μm, and has a strong adhesive property as specified by JIS-0273, for example.

The release sheet 2 is made of Teflon-treated paper treated with silicon or a polypropylene sheet.

In the above case, the adhesive force between the release sheet 2 and the adhesive layer 3 needs to be smaller than the adhesive force between the base material layer 4 and the adhesive layer 3.

FIG. 2 is a block diagram of a second embodiment of the present invention, and the same reference numerals as in FIG. 1 indicate the same parts. In addition,
Figure A is an overall perspective view, and Figure B is a partially enlarged sectional view taken along the X-Y line.

In this embodiment, in the embodiment shown in FIG. 1, only the contact surface shaped portion 6 is left and the remaining base material layer 4 and adhesive layer 3 are removed.

This cross-sectional shape is as shown in Figure B, and has a plurality of contact surface shaped parts 6 protruding from the release sheet 2, which are made by laminating a large number of adhesive layers 3 and base material layers 4. It's summery.

In this way, it becomes easy to peel off the contact surface shaped portion 6 from the release sheet 2.

This kind of pattern supplementary seal for dental technology 1
One contact surface shaped portion 6 is provided on one seal, or a plurality (any number) of contact surface shaped portions 6 are arranged in an arbitrary layout in the vertical and horizontal directions.

FIG. 3 is a diagram showing an example of commercialization of the pattern supplementary seal in the above embodiment, and the same reference numerals as in FIGS. 1 and 2 indicate the same parts.

(a) is pattern supplementary sticker 1 in the above example
is in the form of a sheet, and a cover 7 is attached to it.

This cover 7 can be made by, for example, making the area of the release sheet 2 larger than the required area of the supplementary seal part consisting of the adhesive layer 3 and the base material layer 4, and folding it in half from any position after die-cutting. Form.

Further, the outer shape (planar shape) of the pattern supplementary sticker 1 may be any shape such as a rectangle, square, trapezoid, circle, or oval.

By providing the cover 7 in this way, it is possible to prevent the pattern supplementary seal 1 from getting dirty or peeling off.

(b) The pattern supplementary sticker 1 is in the form of a tape,
The base material layer 4 and the adhesive layer 3 are alternately laminated and are wound into a roll with the contact surface shaped portion 6 facing outward.

In this way, the contact surface shaped portion 6 can be easily peeled off during use. Further, a large amount of pattern supplementary stickers 1 can be stored.

In (c), the pattern supplementary sticker 1 is in the form of a tape,
It is wound into a roll with the release sheet 2 facing outside.

Therefore, the contact surface shaped portion 6 is less likely to become dirty or peel off.

(d) is a roll of the tape-shaped pattern supplementary sticker 1 shown in (b) or (c) above.
It is placed inside the storage case 8.

(E) is not stored in a storage case like (D) above, but is stored in a case 9 with a cutter equipped with a tape cutter.

In this way, it is convenient because it can be cut to an appropriate length during use.

In addition, although the pattern supplementary seal in the above embodiment has been described for use in a dental laboratory, it can also be used, for example, in casting for metal engraving and the like.

Further, although the contact surface shape portion of the pattern supplementary seal has been described as an example in which two sets of an adhesive layer and a base material layer are laminated on a release sheet, the present invention is not limited to such an example. Two or more sets of the above-mentioned sets may be laminated.

However, since it may be difficult to secure a predetermined flexibility and obtain a predetermined thickness with one set for the following reasons, at least two or more sets are laminated.

That is, when a polyethylene sheet is used as the base material layer 4, the supplementary thickness is thick, and if one attempts to obtain the required thickness with a single polyethylene sheet, it becomes hard due to the nature of the material.

Therefore, it becomes difficult to adhere to the pattern made of curved surfaces, and the peripheral edge of the supplementary seal becomes bulging.
It may become partially floating.

When this is investment cast, the investment material gets into that part, becomes a "nest" and causes defects. In order to prevent this, if at least two sets of the base material layer 4 and the adhesive layer 3 are laminated as in the present invention, the soft adhesive layer 2 will play a part in increasing the thickness, which will impair flexibility. The thickness can be minimized and the required thickness can be obtained.

[Effect of idea]

As explained above, the present invention has the following effects.

(1) Simply peel off the contact surface shaped part of the pattern supplementary sticker from the release sheet and apply it to the pattern to prevent pattern deformation due to heat in the contact part and roughening of the casting surface of cast products due to viscous and fluid liquids. In addition to being able to
It is possible to always cast with a certain thickness added to compensate for the loss caused by polishing.

(2) Since the cast tooth crown restoration can be supplemented to a uniform thickness, it is very easy to adjust the polishing finish, and loss of the cast tooth crown restoration made of precious metal is reduced.

Moreover, the working time can be shortened.

(3) Since pattern supplementary seals can be made using only inexpensive materials, cast crown restorations can be manufactured at low cost.

(4) Since a plurality of sets of base material layers and adhesive layers are laminated, the soft adhesive layer plays a part in increasing the thickness.

For this reason, even if the thickness of the part to be supplemented increases,
Loss of flexibility can be minimized and the necessary thickness can be secured with sufficient flexibility.

Therefore, the adhesion with the pattern is improved, and it is possible to prevent "nests" from forming in the cast dental crown restoration.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a pattern supplementary seal for dental technology which is the first embodiment of the present invention, Fig. 2 is a block diagram of the second embodiment of the present invention, and Fig. 3 is a block diagram of the pattern supplementary seal in the above embodiment. Figure 4 is a diagram showing a conventional occlusal state of the upper and lower tooth rows in the molar region, Figure 5 is a perspective view of a conventional tooth row working model, and Figure 6 is a diagram showing a conventional dentition working model. FIG. 3 is an explanatory diagram of a pattern and a contact surface of a cast crown restoration. DESCRIPTION OF SYMBOLS 1... Pattern supplementary seal, 2... Release sheet, 3... Adhesive layer, 4... Base material layer, 5... Cut, 6... Contact surface shape part.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A peel-off sticker for a pattern supplementary seal for dental technology that is used by pasting it on a predetermined part of a pattern in order to supplement the loss when polishing a cast dental crown restoration. 2, the adhesive layer 3 and the base material layer 4 are stacked alternately, and a plurality of pairs of the adhesive layer 3 and the base material layer 4 are laminated, and further, the periphery of the arbitrarily shaped contact surface shape part 6 is A pattern supplementary seal for dental technology, characterized in that a cut 5 is provided that penetrates the adhesive layer 3 and the base material layer 4. (2) In a pattern supplement seal for dental technology that is used by pasting it on a predetermined part of the pattern in order to supplement the loss when polishing a cast dental crown restoration, the contact surface shape part 6 of any shape is attached with an adhesive. The adhesive layer 3 and the base material layer 4 are alternately stacked to form a structure in which a plurality of pairs of the adhesive layer 3 and the base material layer 4 are laminated, and this contact surface shaped portion 6 is formed by laminating the release sheet 2.
A pattern supplementary sticker for dental technology, characterized by being provided on the top.