Plate for making dental impressions

Abstract

To obtain a plate for making a dental impression that can accurately and easily deform a dental impression. [Solution] A dental impression making plate 10 on which a dental impression for making an orthodontic appliance is placed has a lateral groove 11, and a lateral sliding portion 12 is formed by pouring material between the dental impression and the plate using the lateral groove 11, dividing the dental impression and allowing the lateral sliding portion 12 to move along the lateral groove 11 of the plate.

Description

[Technical field]

[0001] The present invention relates to a plate for making dental impressions. [Background technology]

[0002] In recent years, mouthpiece-type orthodontic devices (also simply called aligners) are sometimes used to straighten teeth.

[0003] Aligners are transparent mouthpieces created using plaster models of the patient's mouth and 3D scanning data of the mouth, and are less noticeable than conventional multi-bracket methods.

[0004] To create this aligner, delicate adjustments to the tooth mold are required.

[0005] The following patent documents are related to the manufacture of such aligners.

[0006] Patent Document 1 (JP 2024-011965 A) discloses providing a mouthpiece-type orthodontic device with a simple configuration that can reliably press down teeth that are strongly pressed by opposing teeth, and a method for manufacturing a mouthpiece-type orthodontic device. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2024-011965 A Summary of the Invention [Problem to be solved by the invention]

[0008] However, in order to produce an aligner, it is necessary to accurately deform the dental mold for orthodontic purposes. The method of producing an aligner in Patent Document 1 does not disclose the use of a dental mold production plate to produce a plaster model that will become the dental mold of the aligner.

[0009] The present invention has been made in consideration of the above problems, and has an object to provide a plate for making dental impressions that can accurately and easily deform dental impressions. [Means for solving the problem]

[0010] The present invention has been made in consideration of the above problems, and provides: (1) a plate for making a dental impression on which a dental impression for making an orthodontic appliance is placed, the plate on which the dental impression is placed has a horizontal groove, material is poured between the dental impression and the plate to form a horizontal sliding portion by the horizontal groove, the dental impression is divided and the horizontal sliding portion moves along the horizontal groove of the plate.

[0011] (2) A plate for making a dental impression on which a dental impression for making an orthodontic appliance is placed, the plate on which the dental impression is placed has a plurality of horizontal grooves, and material is poured between the dental impression and the plate, forming a horizontal sliding portion on the dental impression by the horizontal grooves, and the dental impression is divided so that the horizontal sliding portion moves along the horizontal grooves of the plate.

[0012] (3) In the above (2), the plate is provided with a restricting portion that restricts movement of the divided tooth die.

[0013] (4) In the above (2), the plate is a transparent acrylic plate.

[0014] (5) In (2) above, the plate has dimensions of 91 mm x 91 mm and a thickness of 3 mm.

[0015] (6) In the above (5), six lateral grooves are formed every 10 mm, and a total of 54 lateral grooves are formed.

[0016] (7) In the above (2), the material is gypsum.

[0017] (8) A plate for making a dental impression on which a dental impression for making an orthodontic appliance is placed, the plate on which the dental impression is placed has a U-shaped groove, and material is poured between the dental impression and the plate, forming a U-shaped slide portion in the dental impression by the U-shaped groove, and the dental impression is divided so that the U-shaped slide portion moves along the U-shaped groove of the plate.

[0018] (9) In the above (8), the plate is a transparent acrylic plate.

[0019] (10) In the above (9), the plate is disk-shaped.

[0020] (11) In the above (8), when the divided dental mold is moved toward the buccal-lingual side, the U-shaped slide portion is cut to form an incline.

[0021] (12) In the above (8), the material is gypsum. Effect of the Invention

[0022] As described above, according to the present invention, a dental impression making plate that can accurately and easily deform a dental impression can be obtained. [Brief description of the drawings]

[0023] The drawings show particular embodiments of the invention, including essential features of the invention as well as alternative and preferred embodiments. [Figure 1] 3A to 3C are a front view, a side view and an enlarged view of a first plate for making a dental impression. [Diagram 2] This is a front view of the dental impression placed on the first dental impression making plate and hardened with plaster. [Diagram 3] 13 is an explanatory diagram of a case where a first fixing portion (regulating portion) is formed by dividing a tooth mold. FIG. [Figure 4] FIG. 13 is an explanatory diagram showing a case where a divided dental mold is moved by a lateral sliding part. [Diagram 5] 13 is an explanatory diagram showing a case where a divided dental mold is fixed by a second fixing portion (a restricting portion). FIG. [Figure 6] FIG. 13 is an explanatory diagram of a case where an adhesive is injected into a divided gap. [Figure 7] FIG. 2 is a perspective view of a completed dental mold. [Figure 8] 4A and 4B are a front view and an enlarged cross-sectional view of a second plate for making a dental impression; [Figure 9] FIG. 11 is an explanatory diagram of a step of preparing a second plate for making a dental impression. [Figure 10] FIG. 11 is an explanatory diagram for explaining a process when the dental mold is divided. [Figure 11] FIG. 11 is an explanatory diagram illustrating a step of inclining a divided dental mold. [Figure 12] FIG. 11 is an explanatory diagram illustrating a process of moving a divided dental mold by a U-shaped slide portion. [Figure 13] FIG. 11 is an explanatory diagram illustrating the process of injecting adhesive into the gaps between the divided dental molds to complete the process. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, the embodiments will be described in detail with reference to the attached drawings. In this example, the description of already known technologies will be omitted. In addition, the structures and methods for embodying the technical idea of ​​the invention are exemplified, and the technical idea of ​​the invention is not limited to the following. The technical idea of ​​the invention can be modified in various ways within the scope of the matters described in the utility model registration claims. In particular, it should be noted that the drawings are schematic and may differ from the actual product. In addition, when a plate is referred to in the claims, it means a plate for making a first dental impression or a plate for making a second dental impression.

[0025] The dental impression, which is a plaster model that serves as a mold for the mouthpiece constituting the aligner type orthodontic appliance of this embodiment, and the method for making it will be described with reference to Figures 1 to 7. To make the dental impression of this plaster model, a first acrylic dental impression making plate (also called space making plate 10) shown in Figure 1 is used.

[0026] The purpose of using the space-making plate 10 was developed to precisely widen the arch of the teeth for orthodontic purposes, and it can reduce the need for grinding the teeth, which has traditionally been required in dental treatment.

[0027] That is, the space-making plate 10 is a base (dental impression making plate 10) used when freely deforming the dental impression shape of the plaster model when making the plaster model.

[0028] Its distinctive feature is that horizontal grooves 11 about 0.5 mm deep are regularly carved into a plate measuring approximately 90 mm in length and width, and these horizontal grooves 11 are used to create a plaster model (tooth impression) for orthodontic purposes.

[0029] Specifically, it is 91 mm long and 91 mm wide, 3 mm thick, and has approximately six horizontal grooves 11 every 10 mm, for a total of 54 horizontal grooves 11 (0.5 mm deep).

[0030] How to use this space-making plate 10 will be described with reference to FIGS.

[0031] As shown in FIG. 2, plaster is poured between the plaster model (tooth shape) and the space-making plate 10 and allowed to harden to form a lateral sliding portion 12 on the back side of the plaster model (see the enlarged side view of FIG. 1).

[0032] The gypsum model 20 is guided by the lateral slide portion 12 into the lateral groove 11 of the dental impression making plate 10 so that it can move left and right without wobbling.

[0033] As shown in Fig. 3, the plaster model 20 is temporarily removed from the space making plate 10, which is a plate for making a dental impression, and a restricting portion (first fixing portion) 30 is formed on the space making plate 10, which is a plate for making a dental impression. Next, the plaster model 20 is fixed to the restricting portion 30. Then, as shown in Fig. 4, the plaster model 20 is divided to be movable on the space making plate 10, which is a plate for making a dental impression.

[0034] 4, the divided plaster model 20 is shifted sideways by 0.5 mm at a time in the direction of the arrow AR to match the horizontal groove of the space making plate 10, which is a plate for making a dental impression. At this point, the dividing groove 40 is formed.

[0035] 5, a restricting portion (second fixing portion) 50 is formed on the opposite side of the restricting portion 30. Then, the divided plaster model 20 is fixed to the restricting portion 50 by shifting it to an appropriate position.

[0036] Next, as shown in FIG. 6, resin 60 (an example of adhesive) is poured into the division grooves 40 created by division and adhered to them, thereby completing the processing of the plaster model 20.

[0037] 7, a dental pressurizer (a machine for making plaster models) is used to pressurize the mouthpiece 70. The mouthpiece thus produced is an aligner used for orthodontic treatment.

[0038] Please refer to Fig. 8. This is a case where a plaster model (tooth impression) is made using a three-dimensional plate 100 which is the second plate for making a dental impression.

[0039] The three-dimensional plate 100, which is the plate for making dental impressions, is a circular acrylic plate with a diameter of 80 mm and a disk shape with a thickness of 4 mm, as shown in Figure 8, and has a U-shaped groove portion 110, two recesses 120 and a recess portion 130 formed on the bottom surface.

[0040] This 3-dimensional plate 100, which is a plate for making dental impressions, is used in cases where the expansion or reduction of the dental arch is not required. It is used for mesiodistal or buccolingual movement, closing of gaps in the dental arch, aligner pending, virtual 3-dimensional tad, tooth extraction cases, etc.

[0041] A plaster model (tooth impression) is made using a three-dimensional plate, which is a dental impression making plate 100 shown in FIG.

[0042] Hereinafter, this dental impression making plate 100 will be simply referred to as a three-dimensional plate (three-dimensional mold) 100 in this embodiment.

[0043] Next, a method for producing a plaster model (tooth mold) 140 using the three-dimensional plate 100 will be described with reference to Figs.

[0044] 9 to 13, a case will be described in which the upper right corners 1 to 3 are moved centrifugal.

[0045] As shown in Figure 9, a three-dimensional plate 100 is prepared, and plaster is poured into the groove between the plaster model (tooth shape) 140 and the three-dimensional plate 100 and allowed to harden to form a U-shaped slide portion 111 (see cross section AA in Figure 8), and the plaster model (tooth shape) 140 is tightly fixed to the three-dimensional plate 100.

[0046] 10, the plaster model 140 is once removed from the three-dimensional plate 100, and the model is cut to match the dentition. In this example, the model is cut along cutting lines 141, 142, 143, and 144 to obtain a divided plaster model 145, a divided plaster model 146, and a divided plaster model 147.

[0047] Furthermore, as shown in FIG. 11, when it is desired to move the protrusion toward the buccal-lingual side (arrow AR1), it is possible to cut the protrusion that enters the U-shaped groove 110 and provide an incline or the like.

[0048] Then, as shown in FIG. 12, the plaster model 140 is returned to the three-dimensional plate 100, and the cut portions are shifted centrifugal (in the direction of arrow AR2) by 0.5 mm, and fixed with resin 151, resin 152, resin 153, and resin 154 (an example of an adhesive) as shown in FIG. 13.

[0049] Next, as shown in Figure 13, the tooth is pressed using a dental press (a machine used to make mouthpieces) to complete the process.

[0050] The aligner-type orthodontic appliance of this embodiment may be sold or delivered together with a plaster model or assembled as shown in FIG. 1.

[0051] Although the embodiments have been described in detail above, the present invention is not limited to the specific embodiments, and various modifications and changes are possible within the scope of the claims of the utility model registration. In addition, it is also possible to combine all or a plurality of the components of the above-mentioned embodiments. [Explanation of symbols]

[0052] 10. Plate for making the first tooth mold 11 Yokomizo 12 Horizontal slide section 20 Plaster model 100 Second dental mold making plate 110 U-shaped groove 111 U-shaped slide section 120 Recess 130 Recess

Claims

1. A dental impression making plate on which a dental impression for making an orthodontic appliance is placed, The plate on which the tooth form is placed has a lateral groove, A plate for making a dental impression by pouring material between the dental impression and the plate, forming a lateral slide portion by the lateral groove, dividing the dental impression, and allowing the lateral slide portion to move along the lateral groove of the plate.

2. A dental impression making plate on which a dental impression for making an orthodontic appliance is placed, The plate on which the tooth form is placed has a plurality of lateral grooves; A plate for making a dental impression, in which a material is poured between the dental impression and the plate, and a lateral slide portion is formed in the dental impression by the lateral groove, and the dental impression is divided so that the lateral slide portion moves along the lateral groove of the plate.

3. 3. The plate for making a dental impression according to claim 2, wherein the plate is provided with a restricting portion for restricting movement of the divided dental impressions.

4. The plate for making a dental impression according to claim 2 , wherein the plate is a transparent acrylic plate.

5. 3. The plate for making dental impressions according to claim 2, wherein the plate has dimensions of 91 mm by 91 mm and a thickness of 3 mm.

6. 6. The plate for making a dental impression according to claim 5, wherein six of the lateral grooves are formed every 10 mm, and a total of 54 of the lateral grooves are formed.

7. 3. The dental impression plate according to claim 2, wherein said material is plaster.

8. A dental impression making plate on which a dental impression for making an orthodontic appliance is placed, The plate on which the tooth form is placed has a U-shaped groove, A plate for making a dental impression, in which material is poured between the dental impression and the plate, a U-shaped slide portion is formed in the dental impression by the U-shaped groove portion, the dental impression is divided, and the U-shaped slide portion moves along the U-shaped groove portion of the plate.

9. The plate for making a dental impression according to claim 8, wherein the plate is a transparent acrylic plate.

10. The plate for making a dental impression according to claim 9, wherein the plate is disk-shaped.

11. 9. The plate for making a dental impression according to claim 8, wherein, when the divided dental impressions are moved toward the buccal-lingual side, the U-shaped slide portion is cut to form an inclination.

12. 9. The dental impression plate according to claim 8, wherein the material is plaster.

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