CN209884372U - Dental crown model, base model and dental jaw combination model - Google Patents
Dental crown model, base model and dental jaw combination model Download PDFInfo
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- CN209884372U CN209884372U CN201822119281.9U CN201822119281U CN209884372U CN 209884372 U CN209884372 U CN 209884372U CN 201822119281 U CN201822119281 U CN 201822119281U CN 209884372 U CN209884372 U CN 209884372U
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- 230000013011 mating Effects 0.000 claims description 12
- 230000001747 exhibiting effect Effects 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000013067 intermediate product Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000011350 dental composite resin Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The utility model discloses a dental crown model, a base model and a dental jaw combined model, which are used for forming an invisible appliance. The tooth jaw combination model comprises: a crown model having a bottom curve formed based on a gum line and an edge line, the edge line being located at a bottom edge of the crown model; and a base model; the base model supports the dental crown model and is integrally or detachably connected with the dental crown model, the dental crown model is matched with the base model to form a boundary area protruding out of the edge line on the dental crown model, and the curvature of the boundary area from the outer surface of the base model to the outer surface of the dental crown model changes unevenly. The compression may be completed to form a demarcation region for the projected edge line on the appliance intermediate. The edge line is used as a cutting reference indicating line, so that the difficulty of cutting can be greatly reduced, the consistency of manually cut products is improved, the use amount of raw materials is reduced, the processing cost of the products is reduced, and the production efficiency is improved.
Description
Technical Field
The utility model relates to a dental crown model, a base model and a dental jaw combined model.
Background
In the prior art, the bracket-free invisible appliance is generally produced and processed by adopting an integrated dental model. The method comprises the following specific steps: 1. digitizing a model of the patient; 2. aligning teeth in software; 3. carrying out tooth movement step-by-step design; 4.3D printing the tooth moving step model; 5. adopting a high polymer membrane to press the transparent appliance through a hot-press molding process; 6. separating the appliance intermediate product from the photocuring model; 7. excess film material is cut off, and the edge of the appliance is shaped and trimmed.
However, this solution in the prior art has the following problems: 1. the light-cured model adopts an integral design, so that the demolding difficulty between the appliance intermediate product and the light-cured model is easily caused; 2. the existing demolding process mostly adopts demolding before incomplete cooling after film pressing, which is easy to cause local deformation of an intermediate product of the appliance; 3. the demoulding mode of the prior art easily causes that the material stress of the appliance cannot be completely released, and the integral deformation of the appliance is increased; 4. the cutting process of the existing appliance mostly adopts a manual or five-axis machine tool cutting mode, the edge of the appliance is cut and polished manually, the consistency deviation of the edge is easily caused due to the influence of human factors, and although the cutting mode of the five-axis machine tool can avoid the consistency deviation of cutting and polishing, the deviation between a designed cutting path and the actual path, which is easily caused by the processing error between a designed model and a final product, exists, so that the equipment and the product are easily damaged; 5. the polishing workload of the edge corrected after cutting is large, and the edge burrs are easily caused by manual or mechanical polishing.
In conclusion, the integrated dental model adopted by the forming of the invisible orthodontic appliance in the prior art brings the defects of difficult demoulding, easy deformation of the orthodontic appliance, large grinding and cutting deviation or high difficulty or large workload.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a dental crown model, base model and tooth jaw combined model in order to overcome the drawing of patterns difficulty that prior art's integrative tooth jaw model brought, to correct the easy deformation of ware, polish cut the defect that the deviation is big or the degree of difficulty is high or work load is big.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
a crown model for use in forming an invisible appliance, the crown model having a bottom curve formed based on a gum line and an edge line at a bottom margin of the crown model, the crown model for being supported by and integrally or detachably connected to a base model, the crown model for mating with the base model to form a demarcation region on the crown model that overhangs the edge line, the demarcation region exhibiting a non-smooth change in curvature from an outer surface of the base model to an outer surface of the crown model.
A base model for use in forming an invisible appliance, the base model for supporting a crown model and being integrally or detachably connected to the crown model, the base model for mating with the crown model to form a demarcation region on the crown model that protrudes beyond an edge line of the crown model, the demarcation region exhibiting a non-smooth change in curvature from an outer surface of the base model to an outer surface of the crown model.
The utility model provides a tooth jaw combination model which characterized in that, it is used for shaping stealthy unscrambler, tooth jaw combination model includes:
a crown model having a bottom curve formed based on a gum line and a margin line, the margin line being located at a bottom margin of the crown model; and
a base model;
wherein the base model supports and is integrally or detachably connected with the dental crown model, the dental crown model is matched with the base model to form a boundary area protruding out of the edge line on the dental crown model, and the boundary area presents a non-smooth change of curvature from the outer surface of the base model to the outer surface of the dental crown model.
Preferably, the boundary region belongs to the bottom curved surface.
Preferably, the dental combination model forms a recess or step at the interface region.
By adopting the arrangement, the wrapping performance of the product in the middle of the appliance is stronger.
Preferably, the base model has a top surface, the bottom surface of the crown model has a mating region, and the top surface matches all or part of the mating region.
By adopting the arrangement, the base model and the dental crown model are more stably matched.
Preferably, the crown model has a bottom partial plane and the base model has a top partial plane that matches all or part of the bottom partial plane.
By adopting the arrangement, the matching of the base model and the dental crown model can be realized.
Preferably, the bottom curved surface of the crown model is annular, and the top curved surface of the base model is annular; the dental crown model is provided with a first limit part, and the bottom curved surface surrounds the first limit part; the base model is provided with a second limiting part, and the top curved surface surrounds the second limiting part; wherein, the first spacing portion is matched with the second spacing portion.
By adopting the arrangement, the bottom curved surface and the first limit part of the dental crown model, and the top curved surface and the second limit part of the base model are connected and limited together. The first limit part of the dental crown model can be a concave part, and the second limit part of the base model can be a convex part; or the first limit part of the dental crown model can be a bulge, and the second limit part of the base model can be a recess; thereby achieving mutual matching.
Preferably, the dental crown model has a first connecting part, and the base model has a second connecting part, wherein the first connecting part and the second connecting part are connected by screw fit, snap fit or interference fit.
In the above technical solution, the first connection part of the dental crown model may be connected with the second connection part of the base model in any connection manner.
Preferably, the dental crown model is integrally formed or separately formed; the base model is integrally formed or formed in a split mode.
In the technical scheme, the dental crown model can be integrally formed; can also be formed in a split way, such as: along the length direction of the dental crown model, the dental crown model is divided into a plurality of segments of dental crown partial models; the several segments of the crown partial model can be detachably connected. The base model can be integrally formed; can also be formed in a split way, such as: along the length direction of the base model, the base model is divided into a multi-trunk-section base sub-model; the plurality of segments of the base portion pattern may be detachably connected.
On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.
The utility model discloses an actively advance the effect and lie in:
the utility model discloses an among dental crown model, base model and tooth jaw combination model, can form the boundary region of outstanding edge line on correcting the ware intermediate product after the press mold is accomplished to the edge line is as cutting reference indicateing line, can reduce the degree of difficulty of cutting in a large number, promotes the product uniformity of manual cutting, reduces the use amount of raw and other materials simultaneously, reduces the processing cost of product and promotes production efficiency.
Drawings
Fig. 1 is a schematic top view of a dental crown model according to embodiment 1 of the present invention.
Fig. 2 is a schematic bottom view of a dental crown model according to embodiment 1 of the present invention.
Fig. 3 is a schematic top view of the base model according to embodiment 1 of the present invention.
Fig. 4 is a top view schematic diagram of the dental combination model according to embodiment 1 of the present invention.
Fig. 5 is a schematic top view of the invisible orthosis of embodiment 1 of the present invention.
FIG. 6 is a schematic view of the top view of the dental jaw assembly model of embodiment 2 of the present invention
Fig. 7 is a schematic top view of the base model according to embodiment 3 of the present invention.
Fig. 8 is a schematic top view of the base model according to embodiment 4 of the present invention.
Fig. 9 is a schematic top view of a base model according to embodiment 5 of the present invention.
Fig. 10 is a schematic top view of a base model according to embodiment 6 of the present invention.
Description of reference numerals:
10: tooth jaw combined model
100: dental crown model
110: bottom curved surface
111: edge line
112: demarcation zone
113: mating region
120: a first limit part
200: base model
210: top curved surface
220: second limit part
230: second connecting part
240: top partial plane
250: base model
251: line of demarcation
20: invisible appliance
Detailed Description
The present invention will be more clearly and completely described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-5, the present embodiment discloses a crown model 100, a base model 200, and a dental composite model 10 for forming an invisible appliance 20.
The dental combination model 10 shown in fig. 4 includes: a crown model 100 as shown in fig. 1-2 and a base model 200 as shown in fig. 3.
As shown in fig. 1-2, the crown model 100 has a bottom curve 110 formed based on the gum line and an edge line 111. Wherein the bottom curve 110 is obscured from view by other parts of the crown model 100, not visible in fig. 1, but visible in fig. 2, limited by the perspective of fig. 1. The margin line 111 is located at the bottom margin of the crown model 100. It will be understood by those skilled in the art that the crown model 100 is used to simulate a human crown, and the margin line 111 of the crown model 100 corresponds to the gum line of a real crown so that the margin line 111 is formed based on the gum line.
In this embodiment, the base model 200 supports the crown model 100 and is detachably connected with the crown model 100. And the crown model 100 is matched with the seating model 200 to form a boundary region 112 of a protruding edge line 111 on the crown model 100. The curvature non-smoothly varies at the boundary region from the outer surface of the base model 200 to the outer surface of the crown model 100. Wherein the outer surface of the crown model 100 refers to the outer surface of the crown model except for the interface region 112. The non-smooth change of the curvature refers to the non-smooth change of the curved surface in the mathematical sense (namely, sudden change is generated in the continuous change process of the curvature, such as slicing the smooth curved surface); the non-smooth change of the curvature at the boundary region from the outer surface of the base model 200 to the outer surface of the crown model 100 means that: the change in curvature from the outer surface of the base model 200 to the outer surface of the crown model 100 is saltatory.
In the above, after the film pressing is completed, the boundary region 112 of the protruded edge line 111 may be formed on the appliance intermediate product (as will be understood by those skilled in the art, after the film pressing, the edge line of the appliance intermediate product corresponds to the edge line 111 of the dental crown model 100, and the boundary region of the appliance intermediate product corresponds to the boundary region 112 of the dental crown model 100), and the edge line is used as the cutting reference indication line, so that the difficulty of cutting may be greatly reduced, the product consistency of manual cutting may be improved, and at the same time, the usage amount of raw materials may be reduced, the processing cost of the product may be reduced, and the production efficiency may be improved.
In this embodiment, as shown in fig. 2, the boundary region 112 belongs to the bottom curved surface 110. The interface region 112 is an outer edge portion of the bottom curved surface 110 of the crown model 100.
The dental combination model 10 forms a recess or step at the interface region 112. So that the wrapping performance of the appliance intermediate product is stronger. That is, at the interface region 112, the crown model 100 and the base model 200 together define a recess or step such that the appliance intermediate product is able to extend into the recess or step beyond the edge line 111 when laminating the film. In this embodiment, the width of the crown model 100 is larger than the entire width of the base model 200 to form a stepped portion; likewise, since fig. 4 is a top view, the step is not directly seen. In an alternative embodiment, the base model may be smaller in width than the crown model only in a portion near the interface region to form the recess.
In this embodiment, as shown in FIG. 3, the base mold 200 has a top curved surface 210. As shown in FIG. 2, the bottom curve 110 of the crown model 100 has a mating region 113 and the top curve 210 matches all or part of the mating region 113. So that the base model 200 is more firmly matched with the crown model 100. The fitting region 113 is located at an inner edge of the bottom curved surface 110 of the crown model 100. The mating region 113 of the bottom curved surface 110 of the crown model 100 has a peak surface and a valley surface arranged at intervals; the top curved surface 210 of the base model 200 also has wave-front and wave-valley surfaces arranged at intervals; so as to realize the mutual matching of the two.
As shown in fig. 2-3, the bottom curved surface 110 of the crown model 100 has a ring shape, and the top curved surface 210 of the base model 200 has a ring shape. The crown model 100 has a first stopper 120, and the bottom curved surface 110 surrounds the first stopper 120. The base model 200 has a second position-limiting portion 220, and the top curved surface 210 surrounds the second position-limiting portion 220. The first position-limiting portion 120 matches with the second position-limiting portion 220. In this way, the bottom curved surface 110 and the first position limiting part 120 of the crown model 100, and the top curved surface 210 and the second position limiting part 220 of the base model 200 are connected and limited together. In this embodiment, the first position-limiting portion 120 of the dental crown model 100 is a concave portion, and the second position-limiting portion 220 of the base model 200 is a convex portion. In an alternative embodiment, the first position-limiting part of the crown model may be a protrusion, and the second position-limiting part of the base model may be a recess; matching is also achieved.
In this embodiment, the crown model 100 is integrally formed, and the base model 200 is integrally formed.
Because the crown structure may vary from user to user, the crown model 100 is typically a customized model that corresponds to the user. The base model 200 may be a customized model, corresponding to the user one-to-one, i.e. the crown model 100 one-to-one; also, the same base model 200 may be adapted to different users, i.e. the same base model 200 may be matched to different crown models 100.
Example 2
As shown in fig. 6, the present embodiment is substantially the same as embodiment 1. The difference lies in that: the crown model 100 is integrated with the base model 200 to constitute the dental combination model 10.
Example 3
This embodiment is substantially similar to embodiment 1 except that the crown model has a first connecting portion and the base model has a second connecting portion. In fig. 7, the second connection part 230 of the base model 200, which is embodied as a through hole, is shown. The first connection portion of the crown model is a screw hole (not shown). The threaded fastener sequentially penetrates through the through hole and the threaded hole to realize that the first connecting part and the second connecting part 230 are connected in a threaded fit manner.
Example 4
This embodiment is substantially similar to embodiment 3, except that, as shown in fig. 8, in this embodiment, the second connecting portion 230 of the base model 200 is a pillar. Accordingly, the first connection of the crown model is with a post hole (not shown). The first connection portion and the second connection portion 230 are in interference fit, that is, the first connection portion and the second connection portion 230 are connected by interference fit. In alternative embodiments, the first connecting portion and the second connecting portion may be connected by a snap fit or any other detachable connection.
Example 5
This embodiment is substantially the same as embodiment 3. The difference lies in that: as shown in fig. 9, the base model 200 has a top partial plane 240. Accordingly, the crown model has a bottom partial plane (not shown) and the top partial plane 240 matches all or part of the bottom partial plane. This also enables the base model to be matched to the crown model.
Example 6
The base model 200 of the present embodiment is substantially similar to embodiment 1, except that: as shown in fig. 10, the base mold 200 is formed in a separate body. Specifically, along the length direction of the base model 200, the base model 200 is divided into a multi-stem base sub-model 250; the plurality of base sub-models 250 may be detachably connected. As shown in fig. 10, a boundary 251 divides the base model 200 into 3-segment base section models 250. Similarly, the dental crown model can be formed in a split mode, and particularly, along the length direction of the dental crown model, the dental crown model can also be divided into a plurality of segments of dental crown partial models; the several segments of the crown partial model can be detachably connected.
In describing the present invention, an embodiment may be provided with multiple figures, and reference numerals for the same components in the same embodiment are not necessarily shown in each figure; it will be appreciated by those skilled in the art that while one or more figures in an embodiment are described, they may be understood in conjunction with other figures in the embodiment; it will be understood by those skilled in the art that when no specific reference is made to which figure the text specifically corresponds, the text can be understood in conjunction with all of the figures in the embodiment.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. A crown model for use in forming an invisible appliance, the crown model having a bottom curve formed based on a gum line and an edge line at a bottom margin of the crown model, the crown model for being supported by and integrally or detachably connected to a base model, the crown model for mating with the base model to form a demarcation region on the crown model that overhangs the edge line, the demarcation region exhibiting a non-smooth change in curvature from an outer surface of the base model to an outer surface of the crown model.
2. A base model for use in forming an invisible appliance, the base model for supporting a crown model and being integrally or detachably connected to the crown model, the base model for mating with the crown model to form on the crown model an interface region protruding beyond an edge line of the crown model, the interface region exhibiting a non-smooth change in curvature from an outer surface of the base model to an outer surface of the crown model.
3. A dental combination model is characterized in that the dental combination model is used for forming an invisible orthodontic appliance, and comprises:
a crown model having a bottom curve formed based on a gum line and a margin line, the margin line being located at a bottom margin of the crown model; and
a base model;
wherein the base model supports and is integrally or detachably connected with the dental crown model, the dental crown model is matched with the base model to form a boundary area protruding out of the edge line on the dental crown model, and the boundary area presents a non-smooth change of curvature from the outer surface of the base model to the outer surface of the dental crown model.
4. The dental combination model of claim 3, wherein the interface region belongs to the bottom surface.
5. The dental combination model of claim 3, wherein the dental combination model forms a recess or step at the interface region.
6. The dental combination of claim 3, wherein the base model has a top surface and the bottom surface of the crown model has a mating area, and wherein the top surface matches all or a portion of the mating area.
7. The dental combination model of claim 3, wherein the crown model has a bottom partial plane and the base model has a top partial plane that matches all or a portion of the bottom partial plane.
8. The dental combination model of claim 6, wherein the bottom curve of the crown model is annular and the top curve of the base model is annular; the dental crown model is provided with a first limit part, and the bottom curved surface surrounds the first limit part; the base model is provided with a second limiting part, and the top curved surface surrounds the second limiting part; wherein, the first spacing portion is matched with the second spacing portion.
9. The dental combination of claim 3, wherein the crown model has a first connection portion and the base model has a second connection portion, wherein the first connection portion and the second connection portion are connected by a threaded fit, a snap fit, or an interference fit.
10. The dental combination model of any one of claims 3-9, wherein the crown model is integrally or separately formed; the base model is integrally formed or formed in a split mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119281.9U CN209884372U (en) | 2018-12-17 | 2018-12-17 | Dental crown model, base model and dental jaw combination model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119281.9U CN209884372U (en) | 2018-12-17 | 2018-12-17 | Dental crown model, base model and dental jaw combination model |
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| Publication Number | Publication Date |
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| CN209884372U true CN209884372U (en) | 2020-01-03 |
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| CN201822119281.9U Expired - Fee Related CN209884372U (en) | 2018-12-17 | 2018-12-17 | Dental crown model, base model and dental jaw combination model |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111449773A (en) * | 2020-03-21 | 2020-07-28 | 杭州一牙数字口腔有限公司 | Self-adaptive processing method of invisible appliance |
| CN115211986A (en) * | 2022-06-24 | 2022-10-21 | 琅泰美康医疗器械有限公司 | Processing method of invisible orthodontic appliance |
-
2018
- 2018-12-17 CN CN201822119281.9U patent/CN209884372U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111449773A (en) * | 2020-03-21 | 2020-07-28 | 杭州一牙数字口腔有限公司 | Self-adaptive processing method of invisible appliance |
| CN115211986A (en) * | 2022-06-24 | 2022-10-21 | 琅泰美康医疗器械有限公司 | Processing method of invisible orthodontic appliance |
| CN115211986B (en) * | 2022-06-24 | 2024-01-16 | 琅泰美康医疗器械有限公司 | Processing method of invisible appliance |
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