TWI707667B - Transparent braces with lines in the moving direction - Google Patents

Abstract

The invention includes a transparent braces part and a plurality of moving direction lines. The transparent braces part has a plurality of tooth-shaped structures, and each tooth-shaped structure has an inner surface, an outer surface and a bottom edge. A plurality of moving direction lines are arranged on at least one of the plurality of tooth-shaped convex parts, and are located on one of the inner surface and the outer surface of the corresponding tooth-shaped convex part, each of the moving direction lines has a plurality of A relief. The vertical direction of the plurality of ridges is used to show the direction of the corrective thrust of the transparent braces. Therefore, the present case achieves the advantages of displaying the moving direction of the corrective thrust and the easy production of the relief part.

Description

Transparent braces with lines in the moving direction

The present invention relates to a transparent brace part with a moving direction texture, especially a transparent brace part with a moving direction texture that can display the corrective thrust and the relief part is easy to make.

Referring to Figure 9, the traditional brace system includes: a brace part 80 having a plurality of tooth-shaped structures 80A, each tooth-shaped structure 80A has an inner surface 81, an outer surface 82 and a bottom edge 83; the bottom edge The 83 series substantially forms a reference plane R.

Refer to Figures 10A and 10B, which are cross-sectional views of the XA-XA position and XB-XB position of the brace part 80 in Figure 9 after being worn on the tooth 91. It can be seen that the brace part 80 is set On the corresponding tooth 91.

Please refer to Fig. 10C again, which is a partial enlarged cross-sectional view of the inner surface 81 of Fig. 10B (for the convenience of the illustration, the tooth 91 is omitted and not shown, and will be described first.), because the brace part 80 is first Use three-dimensional printing technology to make a dental mold (not shown in the figure), and then press the heated flat formed sheet on the aforementioned dental mold (not shown in the figure) through the existing vacuum molding method, and finally make a dental mouthpiece shape The braces part 80. Because the dental model (not shown in the figure) is stacked and solidified layer by layer, if you zoom in and observe it, you can find many fine horizontal lines. This is a stepped structure between layers in the three-dimensional printing technology. During the pressing process , The fine horizontal lines will be transferred to the inner surface 81. Another feature of these fine horizontal lines is that all the fine horizontal lines are horizontal and parallel to each other and parallel to the reference plane R.

However, these fine horizontal lines have no specific function and cannot assist the dentist in obtaining any information.

In view of this, it is necessary to develop a technology that can solve the above-mentioned conventional shortcomings.

The object of the present invention is to provide a transparent brace part with a moving direction texture part, which has the advantages of being able to display the moving direction of the corrective thrust, and the relief part being easy to manufacture. In particular, the problem to be solved by the present invention is that the traditional dental braces first use three-dimensional printing technology to manufacture dental molds, and then press the heated flat sheet into the shape of the dental braces through vacuum molding, because the dental molds are stacked and solidified layer by layer. Therefore, if you zoom in and observe, you can find many fine horizontal lines. This is a stepped structure between layers in three-dimensional printing technology. During the pressing process, the fine horizontal lines will be transferred to the inner surface of the braces. Another feature of these fine horizontal lines is that all fine horizontal lines are horizontal and parallel to each other, and these fine horizontal lines have no specific function, nor can they assist the dentist in obtaining any information.

The technical means to solve the above-mentioned problems is to provide a transparent brace part with lines in the moving direction, which includes: a transparent brace part with plural tooth-shaped structures, each tooth-shaped structure having an inner surface, an outer surface and A bottom edge; a plurality of moving direction lines are provided on at least one of the plurality of tooth-shaped structures, and are located on one of the inner surface and the outer surface of the corresponding tooth-shaped structure; each A moving direction texture portion has a plurality of relief portions; the multiple relief portions are adjacent, spaced apart, and parallel to each other; thereby, the vertical direction of the multiple relief portions is used to show the correction of the transparent braces The direction of thrust.

The above-mentioned objects and advantages of the present invention can be easily understood from the detailed description of the following selected embodiments and the accompanying drawings.

Hereinafter, the present invention will be described in detail with the following examples and drawings:

10: Transparent braces

80A: Tooth structure

11, 81: inner surface

12, 82: outer surface

13, 83: bottom edge

20: Moving direction pattern

21: ridges

211: Auxiliary relief

80: Braces

91, T1, T2, T3: teeth

R: Reference plane

F1, F2, F3: Moving direction

a: lowest reference point

b: Highest reference point

c: auxiliary reference point

F: direction vector

f ₀ , f _n , f _n-1 , f _n-2 , f _n--3 : plane

G: Plane spacing

Figure 1 is a schematic diagram of the first embodiment of the present invention

Figure 2A is a schematic diagram of the position of ⅡA-ⅡA in Figure 1

Figure 2B is a schematic diagram of the position of ⅡB-ⅡB in Figure 1

Figure 2C is a partial enlarged schematic diagram of Figure 2B

Figure 2D is a schematic diagram of the second embodiment of the present invention

Figure 3 is a schematic diagram of the corresponding relationship between the texture of the moving direction and the teeth of the present invention

Figure 4 is a partial enlarged cross-sectional view of Figure 3

Figure 5 is a schematic diagram of one of the manufacturing processes of the moving direction texture of the present invention

Figure 6 is a schematic diagram of the second part of the manufacturing process of the moving direction texture of the present invention

Figure 7 is a schematic diagram of the first application example of the moving direction texture of the present invention

Figure 8 is a schematic diagram of the second application example of the moving direction texture of the present invention

Figure 9 is a schematic diagram of a known device

Figure 10A is a schematic diagram of the position of XA-XA in Figure 9

Figure 10B is a schematic diagram of the position of XB-XB in Figure 9

Figure 10C is a partial enlarged cross-sectional view of the circled position of Figure 10B

"Annex I"

Figure A is the actual product photo of the present invention

Referring to Figures 1, 2A, 2B, 2C, 2D, 3 and 4, the present invention is a transparent brace part with a moving direction texture part, which includes a transparent brace part 10 and a plurality of moving directions纹线部20。 20.

Regarding the transparent mouthpiece portion 10, there are a plurality of tooth-shaped structures 10A, and each tooth-shaped structure 10A has an inner surface 11, an outer surface 12 and a bottom edge 13.

The plurality of moving direction texture portions 20 are provided on at least one of the plurality of tooth-shaped structures 10A, and are located on the inner surface 11 (as shown in Figure 2D) of the corresponding tooth-shaped structure 10A, the On one of the outer surfaces 12. Each of the ridge portions 20 in the moving direction has a plurality of ridge portions 21 (refer to Figure A in Appendix 1). The plurality of ridge portions 21 are adjacent, spaced apart and parallel to each other.

In this way, the vertical direction of the plurality of embossed portions 21 is used to show the direction (for example, F1, F2, F3) of the corrective thrust of the transparent braces portion 10.

In more detail, the bottom end of the bottom edge 13 can form a virtual reference plane R; in addition, the plurality of ridges 21 will not all be parallel to the reference plane R, and the reference plane R is just to facilitate the understanding of this case The characteristics are drawn for reference only.

In practice, the transparent brace part 10 is used to wrap the tooth 91.

The bottom edge 13 communicates with the inner surface 11 and the outer surface 12.

The plurality of embossed portions 21 can be formed on one of the inner surface 11 and the outer surface 12 by hot press molding (refer to Figure A in Appendix 1). Regardless of whether the plurality of embossed portions 21 are provided on the inner surface 11 or the outer surface 12, the aforementioned purpose of "showing the direction of the corrective thrust of the transparent braces 10" can be achieved.

In each view of this case, the plurality of embossed portions 21 is an exaggerated illustration of reduced number and enlarged size for ease of description. The actual number, size, and position can be adjusted according to design requirements.

Figure A in Annex 1 is one of the actual product appearances of this case.

The present invention is mainly used in the process of orthodontics to visually recognize the direction of tooth movement. Refer to Figure 3, for example:

[a] The first example: the plurality of relief portions 21 on one of the plurality of moving direction texture portions 20 are facing the moving direction F1 (in the lower right direction), which represents the tooth 91 corresponding to this example (T1), the transparent dental mouthpiece 10 is moved in the moving direction F1 for correction.

[b] The second example: the plurality of embossed portions 21 on one of the plurality of shifting direction texture portions 20 is facing the shifting direction F2 (approximately in the lower right 45 degree angle direction), which represents the corresponding to this example The tooth 91 (T2) is corrected by moving the transparent dental mouthpiece 10 in the moving direction F2.

[c] The third example: the plurality of ridges 21 on one of the plurality of moving direction textures 20 is facing the moving direction F3 (approximately in the upper right to the right direction), which represents the tooth 91 corresponding to this example (T3), the transparent dental mouthpiece 10 is moved in the moving direction F3 for correction.

The key point of the present invention is that it is well known that braces can be used to correct teeth, but it is impossible to know which tooth is corrected in which direction. The present invention is directed to this part, on the outer surface 12 of the transparent braces portion 10, corresponding to different teeth 91 are provided with the corresponding moving direction pattern 20, and further, the plurality of convex patterns of the moving direction pattern 20 21. It corresponds to the direction in which the tooth 91 is expected to be corrected, and is perpendicular to the moving direction (F1, F2 or F3). In this way, the naked eye can recognize the direction of each tooth to be corrected, which is quite convenient.

In more detail, the process and mathematical method for generating the moving direction texture portion 20 are as follows:

1. The physician obtains the existing model of the patient's mouth.

2. After the inverse optical scanning, the software constructs the tooth model triangle file, the file contains the tooth shape and coordinate position information, and the centroid position of each tooth object, and constructs the rotation center direction and coordinates.

3. The doctor sets the lowest reference point a and the highest reference point b of one of the corresponding teeth as shown in Figure 5 according to the tooth type.

3. After judging by the treatment plan, the doctor can simulate the movement and rotation of the tooth through software to set the final target position.

4. With the initial and final positions of the teeth, the direction vector F of the tooth movement can be known. The direction vector F passes through an auxiliary reference point c and the lowest reference point a.

5. Then generate a plane f ₀ that takes the direction vector F as the normal vector and intersects the lowest reference point a.

6. Corresponding to the plane f ₀ (as the reference), generate a series of complex planes parallel to the plane f ₀ (as shown in Figure 6 f _n , f _n-1 , f _n-2 , f _n-3 , …), the adjacent planes (f ₀ , f _n , f _n-1 , f _n-2 , f _n-3 , …) have a plane spacing G between them, and set the plane spacing G to 0.1mm -0.5mm (set according to doctor's needs).

7. Each of the aforementioned planes (f ₀ , f _n , f _n-1 , f _n-2 , f _n-3 , ...) will be in line with the outer surface 12 (or inner surface 11 of the transparent brace part 10, as shown in Figure The faces are not shown, and they should be combined first.) intersect to form a circle and a circle (as shown in Figure 7, that is, the convex part 21).

8. Finally, after these calculated tooth models are made (that is, the transparent braces 10), there will be lines on the surface (that is, the raised lines 21 in this case), and these lines will be in line with the moving direction (F1 , F2, F3) are vertical, which is convenient for the doctor to judge the direction of tooth movement and check the correctness of the treatment process when the patient is wearing braces.

Of course, each of the relief portions 21 may further include at least one auxiliary relief portion 211 (such as the triangular portion shown in FIG. 8), which represents the moving direction (F1, F2, F3).

The advantages and effects of the present invention are as follows:

[1] The direction of the correction thrust can be displayed. Since at least one of the plurality of tooth-shaped structures in this case is provided with a plurality of moving direction lines, which are located on one of the inner surface and the outer surface of the corresponding tooth-shaped structure, each The moving direction pattern part is provided with a plurality of convexities, and the vertical direction of the plurality of convexities indicates the moving direction of the corrective thrust of the transparent brace part after being put on. Therefore, it can assist the dentist to learn the direction information of the corrective thrust after the user puts on the transparent braces through the vertical direction of the plurality of embossed parts. Therefore, the direction of the correction thrust can be displayed.

[2] The relief is easy to make. The embossed portion of the present invention can be a hot-press forming structure, which is a well-known technology and is easy to implement. Therefore, the relief part is easy to manufacture.

The above is only a detailed description of the present invention with a preferred embodiment, and any simple modifications and changes made to the embodiment will not depart from the spirit and scope of the present invention.

10: Transparent braces

10A: Tooth structure

11: inner surface

12: Outer surface

13: bottom edge

20: Moving direction pattern

21: ridges

91, T1, T2, T3: teeth

R: Reference plane

F1, F2, F3: Moving direction

Claims (3)

A transparent brace part with lines in a moving direction, comprising: a transparent brace part with a plurality of tooth-shaped structures, each tooth-shaped structure having an inner surface, an outer surface and a bottom edge; a plurality of moving directions The texture portion is set on at least one of the plurality of tooth-shaped structures, and is located on one of the inner surface and the outer surface of the corresponding tooth-shaped structure; each of the moving direction texture portions has a plurality of The convexities; the convexities are adjacent, spaced apart and parallel to each other; thereby, the vertical direction of the convexities is used to show the direction of the corrective thrust of the transparent braces; wherein: the The transparent braces part is used to put on the teeth; the bottom edge connects the inner surface and the outer surface. As described in the first item of the scope of patent application, the transparent brace portion with the texture portion in the moving direction, wherein the plurality of embossed portions are all formed on one of the inner surface and the outer surface by hot pressing. As described in the second item of the scope of patent application, the transparent brace part with the texture part in the moving direction, wherein each of the ridges has at least one auxiliary ridge.

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