Dental jaw model, dental crown model, carrier, dental jaw model system and production system

Abstract

The utility model relates to the technical field of shell-shaped dental appliance manufacturing, and discloses a dental model, which comprises a dental crown model and a support base which are arranged in a split manner, the dental crown model comprises a dentition model and a first connecting part which is integrally arranged with the dentition model; the supporting base comprises a second connecting part connected with the first connecting part in a matched mode. And the dental crown model is connected to the supporting base in a pluggable manner through the matching of the first connecting part and the second connecting part. According to the dental model provided by the embodiment of the utility model, the 3D printing cost can be reduced, and the problem that the labor cost is increased due to manual cutting and fitting of the edge contour of the appliance is avoided. The embodiment of the utility model also provides a dental model, a dental crown model, a carrier, a dental model system and a production system.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing shell-shaped dental appliances, in particular to a tooth-jaw model, a crown model, a carrier, a tooth-jaw model system and a production system. Background Art

[0002] Shell-shaped dental braces are a type of orthodontic device made of safe, elastic, transparent polymer materials. They are invisible during the correction process, have good aesthetics, are easy to operate, and are convenient for oral cleaning. They have gradually become the first choice for orthodontic patients. In the production process of shell-shaped dental braces, it is necessary to first make a dental model of the patient, and then use a lamination process to press the membrane tightly against the dental model through air pressure to obtain the corresponding shell-shaped dental braces.

[0003] The current manufacturing process of shell-shaped dental braces mainly uses 3D printing technology to produce the dental models used in the lamination process. However, the existing dental models include the tooth part, the gum part and the base part, and require a lot of printing materials, resulting in high printing costs. In addition, in the process of cutting the edge of the appliance, it is necessary to manually cut the edge contour of the appliance along the dividing line between the tooth part and the gum part, which will increase the labor cost. In addition, each patient's orthodontic process requires the use of multiple or even dozens of shell-shaped dental braces, resulting in a large number of dental models that need to be produced in the existing manufacturing process. Therefore, the manufacturing cost control of the dental models is imminent. Utility Model Content

[0004] The purpose of the utility model is to provide a dental model, a crown model, a carrier, a dental model system and a production system used as a mold for a hot-pressed film-molded shell-shaped dental appliance, which can reduce the cost of 3D printing and avoid the problem of increased labor costs caused by manual cutting to fit the edge contour of the appliance.

[0005] In order to solve the above technical problems, an embodiment of the utility model provides a dental model used as a mold for a hot pressing film forming shell-shaped dental appliance, the dental model comprising: a crown model and a support base which are separately arranged, wherein the crown model comprises a dentition model and a first connecting part which is integrally arranged with the dentition model; the support base comprises a second connecting part which is connected to the first connecting part in a cooperative manner; the crown model is connected to the support base in a pluggable manner through the cooperation of the first connecting part and the second connecting part.

[0006] Compared with the prior art, the embodiment of the utility model configures the dental model into a crown model and a support base that are separated from each other, and the crown model is pluggably connected to the support base through the cooperation of the first connecting part and the second connecting part, which not only saves the gum part between the crown model and the support base, but also allows the same support base to be reused and installed with different crown models, thereby reducing printing materials and reducing printing costs. In addition, since the dental model no longer includes the gum part, the edge contour of the crown model toward the support base is the gum line contour, so in the process of cutting the edge of the orthodontic appliance, the cutting equipment can automatically cut along the edge of the crown model toward the support base without manually identifying the position of the gum line, which reduces labor costs and improves cutting efficiency.

[0007] Optionally, the first connection part and the second connection part are concave-convex matching matching structures, and after the first connection part and the second connection part are assembled, the crown model and the support base are constrained in directions other than the extraction direction. In this way, the crown model is only allowed to move relative to the support base in the extraction direction to achieve pluggable operation between the two, while the relative movement of the crown model and the support base is restricted in other directions, so that after the crown model is inserted into the support base and the membrane is pressed on the crown model in the insertion and extraction direction, it is ensured that the crown model and the support base will not move in all directions, avoiding mutual slippage between the two and causing defects and / or unqualified shell-shaped dental orthodontic appliances formed by hot pressing.

[0008] Optionally, the assembly dimension relationship between the first connection part and the second connection part satisfies that the crown model and the support base are constrained in directions other than the extraction direction. In this way, through the assembly dimension design of the first connection part and the second connection part, the crown model is only allowed to move relative to the support base in the extraction direction to achieve pluggable operation between the two, while the relative movement of the crown model and the support base is restricted in other directions, so that after the crown model is inserted into the support base and the membrane is pressed on the crown model in the extraction direction, it is ensured that the crown model and the support base will not move in all directions, so as to avoid mutual slippage between the two and cause defects and / or unqualified shell-shaped dental orthodontic appliances formed by hot pressing.

[0009] Optionally, when the first connection part is inserted into the second connection part, the first connection part and the second connection part are mutually clamped, so that the crown model and the support base are constrained in directions other than the extraction direction. In this way, through the mutual clamping of the first connection part and the second connection part, the crown model is only allowed to move relative to the support base in the extraction direction to achieve the pluggable operation between the two, while the relative movement of the crown model and the support base is restricted in other directions, so that after the crown model is inserted into the support base and the membrane is pressed on the crown model in the extraction direction, it is ensured that the crown model and the support base will not move in all directions, so as to avoid the mutual slippage between the two, which may cause defects and / or unqualified shell-shaped dental orthodontic appliances formed by hot pressing.

[0010] Optionally, the first connection portion includes a first protruding structure extending from the side of the dentition model close to the support base toward a direction away from the occlusal surface of the corresponding tooth, and the second connection portion includes a first concave structure arranged on the support base and cooperating with the first protruding structure. In this way, the protruding structure and the concave structure on the dentition model and the support base can realize a pluggable connection between the crown model and the support base, which has a simple structure and is easy to disassemble and install.

[0011] Optionally, the first protruding structure is continuously arranged along the mesiodistal direction of the dental arch of the crown model, and the thickness of the first protruding structure in the buccal-lingual and / or labial-lingual directions is less than the thickness of the teeth at the corresponding positions in the same direction. In this way, the size of the first protruding structure can be increased in the extending direction of the dental arch, and its own force strength can be increased to avoid breakage when inserting and / or pulling out the first concave structure; at the same time, the size of the first protruding structure in the buccal-lingual and / or labial-lingual directions is controlled to be smaller than the width of the teeth in this direction, which can prevent the first protruding structure from exceeding the edge of the crown model in this direction, or being flush with the edge, thereby avoiding the edge to facilitate subsequent automated cutting along the edge.

[0012] Optionally, the thickness of the first protruding structure in the labiolingual and / or buccolingual direction of the dentition model is 0.8 mm to 1.2 mm. Designing the size of the first protruding structure within this thickness range can maximize its own force strength while not exceeding the size of the teeth of most people in the buccolingual and / or labiolingual directions, making the design range more applicable to different patients.

[0013] Optionally, the first protruding structure covers at least two teeth in the mesiodistal direction or at least one-third of the length of the dental arch. Since human teeth are arranged in sequence along the arc-shaped dental arch, the first protruding structure covers at least two teeth in the mesiodistal direction or at least one-third of the length of the dental arch, which can not only increase the size of the first protruding structure in the extension direction of the dental arch to enhance its own force strength, but also make the first protruding structure present an arc-shaped curved shape in the mesiodistal direction. After the first protruding structure is inserted into the first concave structure, the freedom of the arc-shaped first protruding structure can be better constrained within the plane of the dental arch, avoiding movement during the subsequent lamination process.

[0014] Optionally, the first connecting portion also includes a support column arranged on the uncovered dental arch portion, wherein the support column is formed by protruding from the side of the dental arch model close to the support base in a direction away from the occlusal surface of the corresponding tooth, wherein the minimum thickness of the support column in the buccal-lingual and / or labial-lingual directions satisfies the requirement of being greater than the thickness of the first protruding structure in the same direction, and the maximum thickness of the support column in the buccal-lingual and / or labial-lingual directions satisfies the requirement of being less than or equal to the thickness of the teeth at the corresponding position in the same direction. Since the dental arch model is provided with a support column that is larger in size than the first protruding structure, the corresponding second concave structure for cooperating with and accommodating the support column will also be larger in size, and the dental arch model is also easy to identify when it is assembled to the support base, so that the operator can first align the larger support column with the second concave structure and then insert it into the support base, which plays a role in facilitating identification and guidance.

[0015] Optionally, the support column and the first protruding structure are arranged adjacent to or spaced apart in the mesiodistal direction of the crown model. In this way, the relationship between the first protruding structure and the support column can be set according to different design requirements. When it is necessary to further enhance the insertion and extraction tolerance of the dental model, the support column and the first protruding structure are arranged adjacent to each other and connected as a whole to enhance the bearing capacity of each other; and when the insertion and extraction tolerance of the crown model has met the design requirements, the support column and the first protruding structure are spaced apart to further reduce the consumption of printing materials and reduce printing costs.

[0016] Optionally, the support column has a mesiodistal dimension ranging from 5 mm to 7 mm.

[0017] Optionally, the first protruding structure covers the entire length of the dental arch in the mesiodistal direction, so that the size of the first protruding structure can be increased to the maximum extent in the extending direction of the dental arch, so as to enhance the force-bearing strength of the first protruding structure.

[0018] Optionally, the first protruding structure is arranged axially symmetrically with respect to the tooth midline. Inserting the axially symmetrical first protruding structure into the first concave structure can ensure that the entire dental model is subjected to uniform force during the subsequent lamination process, thereby avoiding product defects caused by the dental model warping due to uneven force.

[0019] Optionally, the first connecting portion includes a plurality of second protruding structures extending from the side of the dental arch model close to the support base toward a direction away from the occlusal surface of the corresponding teeth, and the second connecting portion includes a second concave structure arranged on the support base and cooperating with the second protruding structure; the second protruding structures are arranged at intervals along the mesiodistal direction of the dental arch of the crown model, and the thickness of the second protruding structure in the buccal and lingual and / or labial and lingual directions is less than or equal to the thickness of the teeth at the corresponding positions in the same direction. With such an arrangement, a pluggable connection between the crown model and the support base can be achieved through the protruding structures and concave structures on the dental arch model and the support base, which has a simple structure and is easy to disassemble and install; and, by controlling the thickness of the second protruding structure in the buccal and lingual and / or labial and lingual directions to be less than the thickness of the teeth in this direction, the second protruding structure can be prevented from exceeding the edge of the crown model in this direction, or being flush with the edge, thereby avoiding the edge and facilitating the subsequent automated cutting along the edge.

[0020] Optionally, a barrier wall is provided between two adjacent second protruding structures, the barrier wall being provided along the mesiodistal direction of the dental arch of the crown model, the barrier wall being formed by protruding from the side of the dentition model close to the support base toward a direction away from the occlusal surface of the corresponding tooth, wherein the minimum thickness of the barrier wall in the buccal-lingual and / or labial-lingual directions is less than the width of the second protruding structure in the same direction. The barrier wall provided between two adjacent second protruding structures will form a barrier in the buccal-lingual and / or labial-lingual directions in the gap between the crown model and the support base after the crown model is inserted into the support base, so as to block the membrane extending into the gap through the tooth surface of the crown model during the film pressing process, thereby preventing the membrane from entering the gap too deeply and causing the membrane to be too thin or being sucked through, and also preventing the membrane from being adsorbed and adhered in the gap.

[0021] Optionally, the barrier wall and the second protruding structure are arranged adjacent to or spaced apart in the mesiodistal direction of the crown model. In this way, the relationship between the second protruding structure and the barrier wall can be set according to different design requirements. When it is necessary to further enhance the insertion and extraction tolerance of the dental model, the barrier wall and the second protruding structure are arranged adjacent to each other and connected as a whole to enhance the bearing capacity of each other; and when the insertion and extraction tolerance of the dental model has met the design requirements, the barrier wall and the second protruding structure are spaced apart to further reduce the consumption of printing materials and reduce printing costs.

[0022] Optionally, the height of the barrier wall in the plug-in and pull-out direction is less than or equal to the height of the second protruding structure in the plug-in and pull-out direction. With such a configuration, the height of the second protruding structure can be no less than the height of the barrier wall, ensuring that the second protruding structure can extend into the second concave structure to achieve the plug-in connection between the crown model and the support base, while using the barrier wall to block the gap formed between the crown model and the support base, blocking the membrane extending into the gap through the tooth surface of the crown model, thereby preventing the membrane from entering the gap too deeply and causing the membrane to be too thin or being sucked through, and also preventing the membrane from being adsorbed and adhered in the gap.

[0023] Optionally, when the height of the barrier wall in the insertion direction is less than the height of the second protruding structure in the same direction, after assembly, the surface of the barrier wall adjacent to the support base abuts against the support base. In this way, the gap between the crown model and the support base can be completely blocked in the buccal-lingual and / or labial-lingual directions.

[0024] Optionally, a height difference between the barrier wall and the second protruding structure is 2 mm to 5 mm.

[0025] Optionally, the second protruding structure covers at least half of the width of a tooth in the mesiodistal direction of the crown model, and at most covers the width of three consecutive teeth. This arrangement can ensure that the second protruding structure has an appropriate size in the mesiodistal direction, avoiding the problem of poor fixation and weak bearing capacity after being plugged into the support base due to its too small size, and also avoiding the problem of excessive material consumption and insignificant cost saving effect due to its too large size.

[0026] Optionally, the second protruding structure covers the area of ​​the teeth in the mesiodistal direction of the crown model and spans the gap between adjacent teeth. Since the dental model provided by the present application removes the gingival part, when the patient has adjacent teeth with a large spacing, the second protruding structure spanning the gap between adjacent teeth can connect the adjacent teeth that were originally not in contact with each other, thereby ensuring the integrity of the crown model.

[0027] Optionally, the second protruding structure is arranged axially symmetrically with respect to the tooth midline. Since the second protruding structure plays the role of plugging with the second concave structure to fix the crown model and the support base, the second protruding structure is arranged axially symmetrically, so that after being inserted into the first concave structure, the entire dental arch model can be uniformly stressed during the subsequent lamination process, thereby avoiding product defects caused by the dental arch model tilting due to uneven stress.

[0028] Optionally, the hardness of the support base and / or the stiffness in the lamination direction are greater than the crown model. In the case of reusing the support base, the crown models used to make the orthodontic appliances in different correction steps need to be plugged into the support base in sequence for the lamination process. Therefore, making the hardness of the support base and / or the stiffness in the lamination direction greater than the crown model can improve the durability of the support base and ensure the reliability of the support base in the lamination process.

[0029] Optionally, the support base and the crown model are made of different materials. Since the support base and the crown model are separate, the use of different materials will not affect the 3D printing of the two. In addition, when the support base is reused, the durability requirements of the support base and the crown model are different. The two can be made of materials with different durability and cost due to different service life, thereby maximizing the reduction of manufacturing costs while meeting the manufacturing process requirements.

[0030] An embodiment of the utility model also provides a dental crown model, which is used as a mold for hot pressing film forming a shell-shaped dental orthodontic appliance, and includes a dentition model and a first connecting part integrally arranged with the dentition model; the first connecting part is used to be pluggably connected to a supporting base, so that before hot pressing film forming, the dentition model can be fixed on the supporting base in a pluggable manner via the first connecting part.

[0031] An embodiment of the utility model also provides a carrier, which includes a main body and a support base arranged on the main body, wherein the support base is used to be pluggably connected to the above-mentioned crown model, wherein the support base is provided with a second connecting part, and the second connecting part is pluggably connected to the first connecting part, so that before the hot pressing film is formed, the dental arch model can be fixed on the support base in a pluggable manner through the cooperation of the first connecting part and the second connecting part.

[0032] An embodiment of the utility model also provides a dental model system, which is used as a mold for hot-pressing film forming a shell-shaped dental orthodontic appliance, and includes a crown model and a support base which are separately arranged, wherein there are multiple crown models, each of which includes a dentition model and a first connecting portion which is integrally arranged with the dentition model; there are at least one support base, each of which corresponds to at least one crown model, and each support base includes a second connecting portion which corresponds to and is matingly connected to the first connecting portion of the corresponding crown model; the crown model is connected to the support base in a pluggable manner through the cooperation of the first connecting portion and the second connecting portion.

[0033] Optionally, at least one of the support bases corresponds to a plurality of the dental crown models, and the first connecting portions on the plurality of the dental crown models corresponding to the same support base are arranged at the same position. This arrangement enables a single support base to be used to support and fix a plurality of dental crown models, thereby reducing the number of support bases to be prepared, further reducing material consumption, and reducing costs.

[0034] The embodiment of the utility model also provides a production system for producing a shell-shaped orthodontic appliance, which includes a loading component, a film pressing component, a cutting component, a material removal component and a transfer component, wherein the loading component is arranged on a loading station, and is used to assemble the crown model in the above-mentioned dental model on a carrier plate fixed with the support base; the transfer component is used to transfer the carrier plate after assembling the dental model to the film pressing station, the cutting station and the material removal station respectively according to a predetermined process sequence; the film pressing component is arranged on the film pressing station, and is used to hot-press the film sheet to the desired position when the transfer component transports the carrier plate to the film pressing station. The dental model is formed on the semi-finished appliance; the cutting component is arranged on the cutting station, and is used to cut the semi-finished appliance on the carrying plate according to a predetermined cutting path when the transfer component transports the carrying plate to the cutting station; the dismantling component is arranged on the dismantling station, and is used to dismantle the appliance part of the semi-finished appliance after cutting to obtain a shell-shaped appliance when the transfer component transports the carrying plate to the dismantling station; and the transfer component transports the support base of the semi-finished appliance to the loading station so that the loading component can fix the crown model on the support base. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0036] Figure 1 It is a top view of the dental model provided by the first embodiment of the utility model;

[0037] Figure 2 yes Figure 1 The front view of the dental model shown;

[0038] Figure 3 yes Figure 1 Side view of the dental model shown;

[0039] Figure 4 yes Figure 1 The cross-sectional view of the assembly structure of the dental model shown;

[0040] Figure 5 It is a top view of a dental crown model provided by a modified embodiment of the utility model;

[0041] Figure 6 It is a top view of a dental model provided by another modified embodiment of the utility model;

[0042] Figure 7 yes Figure 5 The front view of the dental model shown;

[0043] Figure 8 yes Figure 6 The cross-sectional view of the assembly structure of the dental model shown;

[0044] Fig. 9 It is a top view of a dental crown model provided by another modified embodiment of the utility model;

[0045] Fig.10 is a top view of a dental model provided in the second embodiment of the utility model;

[0046] Fig.11 yes Fig.10 The front view of the dental model shown;

[0047] Fig.12 yes Fig.10 Side view of the dental model shown;

[0048] Fig.13 It is a top view of a dental crown model provided by a feasible embodiment of the utility model;

[0049] Fig.14 It is a front view of a dental crown model provided by another feasible embodiment of the utility model;

[0050] Fig.15 yes Fig.14 Schematic diagram of the changed structure of the crown model shown;

[0051] Fig.16 This is a front view of the assembly structure of a dental model provided by another feasible embodiment of the utility model;

[0052] Fig.17 is a top view of a dental crown model provided by another feasible embodiment of the utility model;

[0053] Fig.18 It is a schematic cross-sectional view of the separation structure of the dental model with a clamping structure provided by the utility model;

[0054] Fig.19 It is a schematic cross-sectional diagram of the combined structure of the dental jaw model with a clamping structure provided by the utility model;

[0055] Fig. 20It is a structural block diagram of a production system provided by the sixth embodiment of the present utility model. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical scheme and advantages of the utility model clearer, the various embodiments of the utility model will be described in detail below with reference to the accompanying drawings. However, it can be understood by those skilled in the art that in the various embodiments of the utility model, many technical details are provided in order to enable readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical schemes claimed for protection in the claims of the present application can be implemented.

[0057] In the embodiments of the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0058] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0059] In addition, the terms "installed", "set", "provided with", "opened", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0060] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0061] The "anterior tooth area" and "posterior tooth area" mentioned in various embodiments of the present application are defined according to the classification of teeth in the second edition of "Introduction to Stomatology" published by Peking University Medical Press, pages 36-38, including premolars and molars, which are teeth 4-8 in the FDI notation, and teeth 1-3 in the anterior tooth area in the FDI notation. The teeth in the anterior tooth area include central incisors, lateral incisors and canines.

[0062] As a dental medical device for correcting dental deformities, shell-shaped dental braces do not affect the appearance of human teeth during the correction process compared to wire-type dental braces. In addition, shell-shaped dental braces do not pose a risk of puncture to the surrounding areas of human teeth, and are convenient for maintaining oral hygiene. Therefore, shell-shaped dental braces are increasingly attracting the attention of oral medicine professionals. In the manufacturing process of shell-shaped dental braces, the dental model used in the lamination process is mainly produced by 3D printing technology. However, the existing dental model includes a tooth part, a gum part, and a base part, and the printing material required is large, resulting in high printing costs. In the process of cutting the edge of the appliance, it is necessary to manually cut the edge contour of the appliance along the dividing line between the tooth part and the gum part, which will increase the labor cost.

[0063] In view of the above technical problems, the utility model provides a dental model used as a mold for hot pressing film forming shell-shaped dental orthodontic appliances, the dental model comprising: a crown model and a support base which are separately arranged, wherein the crown model comprises a dentition model and a first connecting portion which is integrally arranged with the dentition model; the support base comprises a second connecting portion which cooperates with the first connecting portion; the crown model is connected to the support base in a pluggable manner through the cooperation of the first connecting portion and the second connecting portion. Compared with the prior art, the implementation method of the utility model arranges the dental model into a crown model and a support base which are separated from each other, and the crown model is pluggably connected to the support base through the cooperation of the first connecting portion and the second connecting portion, thus eliminating the gum part between the crown model and the support base, and making the same support base reusable and capable of installing different crown models, thereby reducing printing materials and printing costs. In addition, since the dental model no longer contains the gum part, the edge contour of the crown model toward the supporting base is the gum line contour. Therefore, in the process of cutting the edge of the orthodontic appliance, the cutting equipment can automatically cut along the edge of the crown model toward the supporting base without manually identifying the position of the gum line, which not only reduces labor costs but also improves cutting efficiency.

[0064] The following is a specific description of the implementation details of the dental model of the utility model used as a mold for hot pressing film forming a shell-shaped dental appliance. The following content is only provided for the convenience of understanding the implementation details and is not necessary for the implementation of this solution.

[0065] like Figure 1 , Figure 2 as well as Figure 3 As shown, the dental model 100 provided in the first embodiment of the present invention includes a dental crown model 11 and a support base 12 which are separately arranged.

[0066] The crown model 11 includes a dentition model 110 and a first protruding structure 112 integrally provided with the dentition model 110. The dentition model 110 is used as a mold for hot pressing film, and the film is formed into a shell-shaped appliance that can be sleeved on the patient's teeth to apply orthodontic correction force. The first protruding structure 112 is used as a first connecting portion for matching and connecting with the support base 12, and has the function of plugging and unplugging with the support base 12. When manufacturing the dental model 100, the patient's teeth or tooth plaster model can be scanned first to obtain model data containing the patient's gums and teeth, and then the scanned model data can be trimmed, the gums separated, the tooth positions named, the tooth axes adjusted, and other operations can be performed using software to obtain the patient's tooth model data; then, the patient's tooth model data can be processed by a computer according to the correction plan, and the gum structure can be removed from the processed patient's tooth model data to obtain the dentition model data, and then a protruding structure can be added to the dentition model data, and the correction prototype data for each step can be automatically generated; then, all the prototype data can be manually spread out and placed on the work plate using the plate arrangement software, and the 3D printer can print out the 112 prototypes without the gum structure but with the first protruding structure at each step, that is, the crown model 11.

[0067] For details, see Figure 2 The dental model 110 includes a bottom side 1100 close to the support base 12, and the first protruding structure 112 protrudes from the bottom side of the dental model 110 to form an arc-shaped wall structure. It can be understood that after the first protruding structure 112 is formed on the dental model 110, the first protruding structure 112 and the teeth on the dental model 110 (that is, the tooth model) correspond to each other and extend in directions away from each other. Figure 2 As an example, the teeth on the dental model 110 extend toward the occlusal plane OP (due to Figure 2 The occlusal plane shown is above the teeth, so the extension direction is Figure 2 The first protrusion is directed away from the occlusal surface of the corresponding tooth (i.e. Figure 2 below the figure shown).

[0068] The support base 12 includes a first concave structure 122 that is connected to the first protruding structure 112. The crown model 11 can be connected to the support base 12 in a pluggable manner through the cooperation of the first protruding structure 112 and the first concave structure 122. After the crown model 11 and the support base 12 are manufactured, they can be cleaned and cured, and then the crown model 11 can be assembled in the support base 12. The support base 12 is used to fix and support the crown model 11. After the crown model 11 is assembled on the support base 12, the support base 12 can be fixed on the carrier plate and transported with the carrier plate to the laminating station and the cutting station, etc., to facilitate the automated hot laminating and cutting process. For details, see Figure 4 In this embodiment, the first concave structure 122 is a shape matching the first convex structure 112, and the first convex structure 112 can be inserted into the arc-shaped receiving groove of the first concave structure 122 to form a clearance fit. In this way, when the crown model 11 needs to be installed on the support base 12, the first convex structure 112 with an arc-shaped wall can be inserted into the first concave structure 122 with an arc-shaped receiving groove, so that the inner wall of the first concave structure 122 can be used to limit the movement of the first convex structure 112, thereby fixing the crown model 11 on the support base 12. It can be understood that the first concave structure 122 is configured as a groove structure capable of accommodating the first convex structure 112, but in other feasible embodiments, the first concave structure 122 can also be configured as a through hole that penetrates the support base 12.

[0069] After the crown model 11 is fixed on the support base 12, the film can be pressed to make the appliance film have the shape of the tooth model. Then, the appliance obtained by pressing the film can be placed on the platform of the CNC laser cutting machine for automatic cutting. After cutting, it is taken out, the edge of the appliance is polished, and the processing is completed after cleaning and packaging. Preferably, the size of the first concave structure 122 is slightly smaller than the first convex structure 112, so that the first convex structure 112 can achieve an interference fit after being inserted into the first concave structure 122, thereby further enhancing the fixing effect on the crown model 11 and avoiding the crown model 11 from shaking during the pressing process to cause product defects.

[0070] The crown model 11 and the support base 12 of the dental model provided by the embodiment of the utility model are separated from each other, and the first protruding structure 112 and the first concave structure 122 thereof are used as the first connecting part and the second connecting part that can cooperate with each other to realize a detachable connection. The crown model 11 is pluggably connected to the support base 12 through the cooperation of the first protruding structure 112 and the first concave structure 122, so that the gingival part between the crown model 11 and the support base 12 is omitted, and the same support base 12 can be reused and installed with different crown models 11, thereby reducing printing materials and reducing printing costs. In addition, since the dental model no longer includes the gingival part, the edge contour of the crown model 11 facing the support base 12 is the gingival line contour, so in the process of cutting the edge of the orthodontic appliance, the cutting equipment can automatically cut along the edge of the crown model 11 facing the support base without manually identifying the position of the gingival line, which reduces labor costs and improves cutting efficiency. In addition, the split design of the first connecting part and the second connecting part can make the selection of materials for the crown model 11 and the support base 12 more flexible.

[0071] It can be understood that the arc-shaped wall structure of the first protruding structure 112 can also be changed to other shapes, for example, a flat wall structure extending a short distance (for example, about 1 cm to 1.5 cm) along a straight line on the dental arch line; in addition, although the first connecting portion of the crown model 11 here is a protruding structure and the second connecting portion of the supporting base 12 is a concave structure, in other feasible embodiments, the first connecting portion of the crown model 11 can be set as a concave structure, and the second connecting portion of the supporting base 12 can be set as a protruding structure, so that the crown model 11 can also be pluggably connected to the supporting base 12 through the cooperation of the first connecting portion and the second connecting portion.

[0072] Please continue to refer to Figure 1In this embodiment, the first protruding structure 112 is continuously arranged along the mesiodistal direction of the dental arch of the crown model 11, and the thickness of the first protruding structure in the buccal-lingual and / or labial-lingual direction is less than the thickness of the tooth at the corresponding position in the same direction (that is, when the tooth at the corresponding position of the first protruding structure is a molar or canine between the buccal and tongue, the thickness of the first protruding structure in the buccal-lingual direction is less than the thickness of the molar or canine at the corresponding position in the buccal-lingual direction; when the tooth at the corresponding position of the first protruding structure is an incisor between the labial and tongue, the thickness of the first protruding structure in the labial-lingual direction is less than the thickness of the incisor at the corresponding position in the labial-lingual direction). In this way, the first protruding structure 112 is larger in size due to the continuous arrangement in the extension direction of the dental arch, which can not only increase its own force strength and avoid breakage when inserting and / or pulling out the first concave structure 122; at the same time, the size of the first protruding structure 112 in the buccal and lingual and / or labial and lingual directions is controlled to be smaller than the width of the tooth in this direction, which can prevent the first protruding structure 112 from exceeding the edge of the crown model 11 in this direction or being flush with the edge, thereby avoiding the edge and facilitating subsequent automated cutting along the edge. In this embodiment, Figure 1 As shown, the first protruding structure 112 covers the entire length of the dental arch in the mesiodistal direction to maximize its own force strength and avoid breakage when inserting and / or extracting the first concave structure 122. Preferably, the thickness of the first protruding structure 112 in the labiolingual and / or buccolingual directions of the dental arch model 110 is 0.8 mm to 1.2 mm. The size of the first protruding structure is designed within this thickness range, which can maximize its own force strength while not exceeding the size of the teeth in the buccolingual and labiolingual directions of the vast majority of people, making the design range more applicable to different patients. In addition, in a preferred embodiment, the first protruding structure 112 is axially symmetrically arranged relative to the tooth midline. When the axially symmetrical first protruding structure 112 is inserted into the first concave structure 122, it can ensure that the entire dental arch model 110 is uniformly stressed during the subsequent lamination process, avoiding product defects caused by the dental arch model 110 tilting due to uneven force.

[0073] It should be noted that, in some cases of design, production and material selection, the force strength of the first protruding structure 112 can meet the insertion and extraction requirements without covering the entire dental arch in the mesiodistal direction, see Figure 5, the first protruding structure 112 may only cover part of the dental arch length, and its specific length design may be balanced with reference to the two factors of "shortening the length to save materials" and "increasing the length to ensure the strength of the force". As an example, in another embodiment of the present invention, there are at least two teeth on the dental arch model 110 corresponding to the position of the first protruding structure 112, or the teeth on the dental arch model 110 corresponding to the position of the first protruding structure 112 cover at least one-third of the dental arch length. In other words, the first protruding structure 112 covers at least two teeth or at least one-third of the dental arch length in the mesiodistal direction. Since human teeth are arranged in sequence along an arc-shaped dental arch, the first protruding structure 112 covers at least two teeth or at least one-third of the length of the dental arch in the mesiodistal direction. This can not only increase the size of the first protruding structure 112 in the extension direction of the dental arch to enhance its own force-bearing strength, but also make the first protruding structure 112 present an arc-shaped curved shape in the mesiodistal direction. After the first protruding structure is inserted into the first concave structure, the freedom of the arc-shaped first protruding structure 112 can be better constrained within the plane of the dental arch to avoid movement during the subsequent lamination process.

[0074] Preferably, see Figure 6 and Figure 7 When the first protruding structure 112 does not cover the entire length of the dental arch in the mesiodistal direction, a support column 114 is further provided on the dental model 110 at a position not covered by the first protruding structure 112. The horizontal cross-sectional shape of the support column 114 is circular, semicircular, square, triangular or square arc. The support column 114 is formed by protruding from the bottom side 1100 of the dental model 110 close to the support base 12 in a direction away from the corresponding tooth occlusal surface OP. In a feasible embodiment, the minimum thickness of the support column 114 in the buccal-lingual and / or labial-lingual directions (when the support column 114 is located between the buccal-lingual direction, it refers to the buccal-lingual direction; when the support column 114 is located between the lip and tongue, it refers to the labial-lingual direction) satisfies that it is greater than the thickness of the first protruding structure 112 in the same direction, and the maximum thickness of the support column 114 in the buccal-lingual and / or labial-lingual directions (when the support column 114 is located between the buccal-lingual direction, it refers to the buccal-lingual direction; when the support column 114 is located between the lip and tongue, it refers to the labial-lingual direction) satisfies that it is less than or equal to the thickness of the teeth at the corresponding positions in the same direction. Since the dental model 110 is provided with a support column 114 that is larger in size than the first protruding structure 112, the structure on the corresponding recessed structure 124 for accommodating the support column 114 will also be larger in size, and the dental model 110 is also easy to identify when it is assembled to the support base 12, so that the operator can first align the larger support column 114 with the recessed structure 124 and then insert it into the support base 12, which facilitates identification and guidance.

[0075] Furthermore, in a feasible embodiment, the support column 114 has a size ranging from 5 mm to 7 mm in the mesial and distal directions, for example, 5 mm.

[0076] Please also see Figure 8 It can be understood that, in a feasible embodiment of the present invention, the support column 114 and the recessed structure 124 can also be interference fit like the first protruding structure 112 and the first concave structure 122, so as to further improve the fixing effect of the crown model 11 and the support base 12. Of course, in another modified embodiment of the present invention, only the support column 114 and the recessed structure 124 can be designed as interference fit to improve the fixing effect of the crown model 11 and the support base 12; while the first protruding structure 112 and the first concave structure 122 are designed as clearance fit to restrict the movement of the crown model 11 and the support base 12 in directions other than the extraction direction.

[0077] It is not difficult to understand that in Figure 6 and Figure 7 In the dental arch model 110 shown, the first protruding structure 112 and the supporting column 114 are spaced apart from each other in the mesiodistal direction of the crown model. In this way, when the insertion and extraction resistance strength of the crown model has met the design requirements, the space between the supporting column and the first protruding structure can further reduce the consumption of printing materials and reduce the printing cost. Of course, if the insertion and extraction resistance strength of the dental jaw model needs to be enhanced in a specific design or production situation, it can be as follows Fig. 9 As shown, the support column 114 and the first protruding structure 112 are disposed adjacent to each other and connected as a whole to enhance the bearing capacity of each other and prevent the dental model from being broken or damaged during the insertion and extraction process.

[0078] The second embodiment of the present invention also provides another dental model 200. Fig.10 , Fig.11 as well as Fig.12The structure and manufacturing method of the dental model 200 provided in this embodiment are roughly the same as those of the dental model 100 provided in the first embodiment. The dental model 200 also includes a crown model 21 having a dentition model 210 and a supporting base 22 supporting the crown model 21. The difference is that a plurality of second protruding structures 212 are arranged on the dentition model 210 of the dental model 200. The plurality of second protruding structures 212 extend from the bottom side 2100 of the dentition model 210 close to the supporting base 22 toward a direction away from the corresponding tooth occlusal surface OP. The support base 22 is formed by a protrusion, and a second concave structure 222 that cooperates with a plurality of second protruding structures 212 is provided on the support base 22. The second protruding structures 212 are arranged at intervals along the mesiodistal direction of the dental arch of the crown model 21. The thickness of the second protruding structure 212 in the buccal-lingual and / or labial-lingual directions (when the second protruding structure 212 is located between the buccal-lingual, it refers to the buccal-lingual direction; when the second protruding structure 212 is located between the labial-lingual, it refers to the labial-lingual direction) is less than or equal to the width of the teeth at the corresponding position in the same direction. Preferably, in order to facilitate the plug-in and pull-out cooperation between the second protruding structure 212 and the second concave structure 222, the second protruding structure 212 protrudes from the bottom side of the dental arch model 210 to form a columnar shape. For example, cylindrical pillars (for example, with a diameter of 6 mm) are added to the molar area and incisor area on both sides.

[0079] With such an arrangement, the second protruding structure 212 and the second concave structure can realize a pluggable connection between the crown model 21 and the supporting base 22, which has a simple structure and is easy to disassemble and install; and, the thickness of the second protruding structure 212 in the buccal and lingual directions and / or the labial and lingual directions is controlled to be smaller than the thickness of the tooth in this direction, which can prevent the second protruding structure 212 from exceeding the edge of the crown model 21 in this direction or being flush with the edge, thereby avoiding the edge to facilitate subsequent automated cutting along the edge.

[0080] Furthermore, in one embodiment of the present invention, the second protruding structure 212 covers at least half of the width of a tooth in the mesiodistal direction of the crown model 21, and at most covers the width of three consecutive teeth. This ensures that the second protruding structure 212 has an appropriate size in the mesiodistal direction, and avoids the problem of poor fixation and weak bearing capacity after being plugged into the support base 22 due to its too small size, while also avoiding the problem of excessive material consumption and insignificant cost saving effect due to its too large size. In addition, in a feasible embodiment of the present invention, the second protruding structure 212 can cover the area of ​​the teeth in the mesiodistal direction of the crown model 21 and span the gap between adjacent teeth. Since the gum part is removed from the dental model 200, when the patient has adjacent teeth with a large spacing, the second protruding structure 212 spanning the gap between adjacent teeth can connect adjacent teeth that were originally not in contact with each other, thereby ensuring the integrity of the crown model 21.

[0081] Preferably, the second protruding structure 212 is axially symmetrically arranged relative to the tooth midline. Since the second protruding structure 212 is connected with the second concave structure 222 to fix the crown model 21 and the supporting base 22, the second protruding structure 212 is axially symmetrically arranged. After being inserted into the first concave structure, it can ensure that the entire dental arch model is subjected to uniform force during the subsequent film pressing process, thereby avoiding product defects caused by the dental arch model warping due to uneven force.

[0082] In another feasible embodiment of the present utility model, see Fig.13 , a barrier wall 214 is arranged between two adjacent second protruding structures 212, and the barrier wall 214 is arranged along the mesiodistal direction of the dental arch of the crown model 21, and the barrier wall 214 is formed by protruding from the side of the dental arch model 210 close to the support base 22 toward the direction away from the corresponding tooth occlusal surface OP, wherein the minimum thickness of the barrier wall 214 in the buccal and tongue side and / or labial and tongue side direction (when the barrier wall 214 is located between the buccal and tongue, it refers to the buccal and tongue side direction; when the barrier wall 214 is located between the labial and tongue, it refers to the labial and tongue side direction) is less than the width of the second protruding structure 212 in the same direction. The crown model 21 made according to the oral physiological parameters of different patients will form a gap of different sizes with the support base 22 after being assembled on the support base 22. If the gap is too large (for example, more than 2 mm), the film is easy to enter the gap during the lamination process, and due to excessive deformation, it is sucked through or too thin, resulting in defects, and may also cause problems such as adsorption and adhesion in the gap. In this regard, the barrier wall 214 arranged between two adjacent second protruding structures 212 will form a barrier in the buccal and / or labial and tongue directions in the gap between the crown model 21 and the support base 22 after the crown model 21 is inserted into the support base 22, so as to block the membrane extending into the gap through the tooth surface of the crown model 21 during the film pressing process, thereby preventing the membrane from entering the gap too deeply and causing the membrane to be too thin or being sucked through and causing deformation and rupture, reducing the deformation of the membrane to ensure that the membrane meets the thickness requirements, and also avoiding problems such as adsorption and adhesion of the membrane in the gap. Please refer to Fig.14 The height of the barrier wall 214 in the plugging and unplugging direction may be the same or substantially the same as the height of the second protruding structure 212 in the plugging and unplugging direction (substantially the same means that there may be a processing tolerance between the two). Fig.15 As shown, the barrier wall 214 is in the plugging direction (i.e. Fig.15The height of the second protruding structure 212 in the vertical direction of the drawing is less than or equal to the height of the second protruding structure 212 in the plugging and unplugging direction, so that the height of the second protruding structure 212 is not less than the height of the barrier wall 214, ensuring that the second protruding structure 212 can extend into the second concave structure 222 to achieve the plugging and unplugging connection between the crown model 21 and the support base 22, and at the same time, the barrier wall 214 is used to block the gap formed between the crown model 21 and the support base 22, blocking the membrane extending into the gap through the tooth surface of the crown model 21, thereby preventing the membrane from entering the gap too deeply and causing the membrane to be too thin or being sucked through. In a feasible embodiment, the height difference between the barrier wall and the second protruding structure is 2 mm to 5 mm.

[0083] More preferably, see Fig.16 When the height of the barrier wall 214 in the insertion direction is less than the height of the second protruding structure 212 in the same direction, after assembly, the surface 2140 of the barrier wall 214 adjacent to the support base 22 abuts against the support base 22. In this way, the barrier wall 214 can completely block the gap between the crown model 21 and the support base 22 in the buccal-lingual and / or labial-lingual directions, thereby improving the blocking effect on the membrane extending into the gap.

[0084] Please refer again Fig.13 The barrier wall 214 and the second protruding structure 212 can be arranged adjacent to each other in the mesiodistal direction of the crown model 21, so that the barrier wall 214 and the second protruding structure 212 are connected as a whole to enhance the bearing capacity of each other and further enhance the insertion and extraction tolerance strength of the dental model. Fig.17 As shown, the barrier wall 214 and the second protruding structure 212 can also be spaced apart in the mesiodistal direction of the crown model 21, so that when the insertion and extraction resistance strength of the dental model 200 meets the design requirements, the consumption of printing materials and the printing cost can be further reduced.

[0085] It should be noted that, in the dental model provided in the above embodiment, the number of second raised structures can be two, three or more. For example, when the number of second raised structures is three, two of the second raised structures can be set in two opposite posterior tooth areas, and the remaining second raised structure can be set in the anterior tooth area.

[0086] Compared with the first embodiment of the utility model, the dental model 200 provided in the second embodiment of the utility model also has a crown model 21 and a support base 22 that are separated from each other. The second protruding structure 212 and the second concave structure 222 are used as the first connecting part and the second connecting part that can cooperate with each other to realize a detachable connection. The second protruding structure 212 and the second concave structure 222 cooperate to make the crown model 21 pluggable and connected to the support base 22. In this way, the gum part between the crown model 21 and the support base 22 is omitted, and the same support base 22 can be reused and installed with different crown models 21, thereby reducing printing materials and reducing printing costs. In addition, since the dental model 200 no longer includes the gum part, the edge contour of the crown model 21 facing the support base 22 is the gum line contour. Therefore, in the process of cutting the edge of the orthodontic appliance, the cutting equipment can automatically cut along the edge of the crown model 21 facing the support base 22 without manually identifying the position of the gum line, which reduces labor costs and improves cutting efficiency.

[0087] It is understandable that, when the support bases 12 and 22 are reused, the crown models 21 and 22 used to make the orthodontic appliances in different correction steps need to be sequentially plugged into the support bases 12 and 22 for the lamination process. Therefore, preferably, the hardness of the support bases 12 and 22 and / or the stiffness in the lamination direction are greater than the crown models 11 and 21, which can improve the durability of the support bases 12 and 22 and ensure the reliability of the support bases 12 and 22 in the lamination process. For example, the material of the support bases 12 and 22 can be metal or ceramic, which can also make the support bases 12 and 22 more wear-resistant. In addition, the materials of the support bases 12 and 22 and the crown models 11 and 21 can also be different. Since the support bases 12, 22 and the crown models 11, 21 are separately arranged, the 3D printing manufacturing of the two is not affected. In addition, when the support bases 12, 22 are reused, the durability requirements of the support bases 12, 22 and the crown models 11, 21 are different. The two can be made of materials with different durability and costs due to different service cycles, thereby maximizing the reduction of manufacturing costs while meeting the manufacturing process requirements.

[0088] It is not difficult to see that the dental models 100, 200 provided in the first and second embodiments of the present invention adopt a concave-convex matching structure as the first connecting part and the second connecting part. After the first connecting part and the second connecting part are assembled, the crown models 11, 21 and the supporting bases 12, 22 are constrained in directions other than the pulling-out direction. During the process of pressing the orthodontic appliance, the pressure direction is downward in the vertical direction. At this time, the crown models 11, 21 need to be supported in the vertical direction (that is, the crown models 11, 21 are constrained) so that they cannot continue to move downward; at the same time, the crown models 11, 21 also need to be constrained in the horizontal direction so that they cannot move in the horizontal plane, thereby ensuring the accuracy of the orthodontic appliance obtained by pressing the orthodontic appliance through the above-mentioned constraints.

[0089] Of course, the first connection portion and the second connection portion are not limited to the concave-convex matching structure. In other embodiments of the present invention, the first connection portion and the second connection portion may also be in a mutually clamping matching relationship. Fig.18 , Fig.19 As shown, the first connection part 212' provided on the crown model 21' can be a hook, and the second connection part 222' on the support base 22' can be a slot. When the first connection part 212' is detachably inserted into the second connection part 222', the first connection part 212' and the second connection part 222' are mutually clamped, so that the crown model 21' and the support base 22' are constrained in directions other than the extraction direction, so as to ensure the accuracy of the orthodontic appliance obtained by lamination. Specifically, the cross section of the first connection part 212' presents a small size at both ends and a larger size in the middle ( Fig.18 In the figure shown, the bottom end close to the support base 22' and the top end away from the support base 22' are small in size, and the size between the bottom end and the top end is larger, while the second connection part 222' has a spindle-like shape that matches the cross-sectional shape of the first connection part 212'. The bottom end of the first connection part 212' is provided with a groove, so that it can be deformed when squeezed by the second connection part 222' under the action of external pressure, so as to be stuck in the second connection part 222'. Of course, the above-mentioned hook shape of the first connection part 212' is only an example. In other embodiments, the first connection part 212' can also have other cross-sectional shapes, such as circular, elliptical, diamond, etc., as long as its shape design is convenient for plugging and unplugging.

[0090] It should be pointed out that in other modified embodiments, the above-mentioned hook and slot design scheme can also be combined with the support column 114 in the aforementioned embodiment, forming a hook structure at the end of the support column 114, and utilizing the hook at the end of the support column 114 to engage with the slot on the support base for clamping.

[0091] It can be understood that in order to make the fitting connection between the first connection part and the second connection part more stable, the assembly dimension relationship between the first connection part and the second connection part can be designed so that the crown model and the support base are constrained in directions other than the extraction direction. For example, the shapes and sizes of the first connection part and the second connection part match so that the two can achieve clearance fit, that is, one of the first connection part and the second connection part can be assembled into the other, even if the sizes between the two are not exactly the same due to processing tolerances, but the inner wall of the connection part with the receiving space (such as the second connection part) can resist the outer contour of the received connection part (such as the first connection part), thereby constraining the movement of the crown model and the support base in directions other than the extraction direction. For another example, the shapes of the first connection part and the second connection part match but the sizes are different. The size difference does not refer to the size difference between the two due to processing tolerances, but the size difference that enables the two to achieve interference fit, and then through interference fit, the crown model and the support base have a better constraint effect in directions other than the extraction direction.

[0092] The third embodiment of the utility model provides a crown model used as a mold for hot pressing film forming a shell-shaped dental appliance, which includes a dentition model and a first connecting portion integrally provided with the dentition model; the first connecting portion is used to be pluggably connected to a support base, so that before hot pressing film forming, the dentition model is fixed to the support base in a pluggable manner via the first connecting portion. Specifically, the crown model of this embodiment can be the crown model 11 or 21 provided in the aforementioned embodiment, and can also have the relevant technical features of the crown model in the aforementioned various feasible embodiments and / or preferred embodiments or a combination thereof.

[0093] The fourth embodiment of the utility model also provides a carrier, including a main body and a support base arranged on the main body, the support base is used to be pluggably connected to the crown model described in the third embodiment, wherein the support base is provided with a second connection part, and the second connection part is pluggably connected to the first connection part, so that before the hot pressing film is formed, the dental arch model is fixed on the support base in a pluggable manner through the cooperation of the first connection part and the second connection part. Specifically, the support base of this embodiment can be the support base 12 or 22 provided in the aforementioned embodiment, and can also have the corresponding technical features or combinations of the support bases in the aforementioned various feasible embodiments and / or preferred embodiments.

[0094] The fifth embodiment of the utility model also provides a dental model system, which is used as a mold for hot pressing film forming a shell-shaped dental appliance, and includes a crown model and a support base that are separately arranged, wherein the crown models are multiple, each crown model includes a dentition model and a first connecting portion that is integrally arranged with the dentition model; there is at least one support base, each of which corresponds to at least one crown model, and each support base includes a second connecting portion that corresponds to and is connected to the first connecting portion of the corresponding crown model; the crown model is connected to the support base in a pluggable manner through the cooperation of the first connecting portion and the second connecting portion. Preferably, in this embodiment, at least one support base corresponds to multiple crown models, and the setting positions of the first connecting portions on the multiple crown models corresponding to the same support base are the same. Such a setting enables a single support base to be used to support and fix multiple crown models, reducing the number of support bases prepared, further reducing material consumption, and reducing costs. Specifically, the crown model of the present embodiment may be the crown model 11 or 21 provided in the aforementioned embodiment, or may have the relevant technical features or a combination thereof of the crown models in the aforementioned various feasible embodiments and / or preferred embodiments; the supporting base of the present embodiment may be the supporting base 12 or 22 provided in the aforementioned embodiment, or may have the corresponding technical features or a combination thereof of the supporting bases in the aforementioned various feasible embodiments and / or preferred embodiments.

[0095] See also Fig. 20 The sixth embodiment of the utility model further provides a production system 300 for producing a shell-shaped orthodontic appliance, which includes a loading component 31, a transfer component 32, a film pressing component 33, a cutting component 34 and a dismantling component 35.

[0096] The loading assembly 31 is arranged on the loading station, and is used to assemble the crown model in the dental model provided in the above embodiment on the carrier plate fixed with the support base. Specifically, the loading assembly 31 can be a manipulator, which grabs the crown model by automatic suction or automatic clamping, so as to automatically assemble the crown model on the support base for subsequent lamination process.

[0097] The transfer assembly 32 is used to transfer the carrier plate after the dental model is assembled to the laminating station, the cutting station and the material removal station according to a predetermined process sequence. In this embodiment, the transfer operation can be realized by an automatic transmission belt or a manipulator, which is arranged between the loading station, the laminating station, the cutting station and the material removal station to transfer the support base assembled with the crown model between the various stations.

[0098] The laminating assembly 33 is disposed on the laminating station, and is used to hot-press the film onto the dental model to form a semi-finished appliance when the transport assembly 32 transports the carrier plate to the laminating station.

[0099] The cutting assembly 34 is disposed on the cutting station and is used to cut the semi-finished appliance on the carrier plate according to a predetermined cutting path when the transfer assembly 32 transports the carrier plate to the cutting station. Specifically, during the cutting process, a CNC automatic cutting / laser cutting machine can be used to cut the edge of the appliance along the cutting line.

[0100] The disassembly assembly 35 is arranged at the disassembly station, and is used to disassemble the appliance part of the cut appliance semi-finished product to obtain a shell-shaped appliance when the transfer assembly transports the carrier plate to the disassembly station. Optionally, the disassembly assembly 35 can also be replaced by manual labor, and the cut appliance semi-finished product is manually separated / disassembled after cutting, and then the appliance is polished, cleaned, and packaged to complete the appliance processing.

[0101] In this embodiment, the transfer component 32 transfers the support base from which the semi-finished appliance is removed to the loading station so that the loading component 31 can reuse the support base and fix the crown model to the support base. For example, in a feasible embodiment, the transfer component 32 is an automatic conveyor belt, which is connected to the loading station, the laminating station, the cutting station and the dismantling station in sequence to form a ring. After the support base passes through the loading station, the laminating station and the cutting station in sequence and reaches the dismantling station and unloads the finished shell-shaped appliance, the automatic conveyor belt transfers the support base to the loading station again, so that the loading component 31 can assemble the next crown model on the support base and recycle the support base. It is not difficult to understand that the transfer component 32 can also be a manipulator. In this way, after the loading station, the laminating station, the cutting station and the dismantling station form a ring, a manipulator can be set between two adjacent stations to realize the transfer operation respectively, or the manipulator can be set in the center of the ring to transfer the support base equipped with the crown model between each station.

[0102] Furthermore, the crown model of the present embodiment may be the crown model 11 or 21 provided in the aforementioned embodiment, or may have the relevant technical features or a combination thereof of the crown models in the aforementioned various feasible embodiments and / or preferred embodiments; the supporting base of the present embodiment may be the supporting base 12 or 22 provided in the aforementioned embodiment, or may have the corresponding technical features or a combination thereof of the supporting bases in the aforementioned various feasible embodiments and / or preferred embodiments.

[0103] It is understandable that all the above feasible solutions can be combined arbitrarily without contradiction, and the specific combination method can be selected by those skilled in the art according to actual conditions under the guidance of the present utility model, and will not be described in detail here.

[0104] The labeling device for a packaging line provided by the embodiment of the utility model is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation of the utility model. The description of the above implementation is only used to help understand the idea of ​​the utility model. There will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A dental model used as a mold for hot pressing a shell-shaped dental appliance, characterized in that: It includes a separately set crown model and a supporting base, wherein: The dental crown model includes a dentition model and a first connecting portion integrally provided with the dentition model; The support base includes a second connection portion cooperatively connected with the first connection portion; The dental crown model is connected to the support base in a pluggable manner through the cooperation of the first connecting part and the second connecting part; one of the first connecting part and the second connecting part includes a protruding structure, and the other includes a concave structure that cooperates with the protruding structure, and the thickness of the protruding structure in the buccal and lingual sides and / or the labial and lingual sides is smaller than the width of the tooth at the corresponding position in the same direction.

2. The dental model according to claim 1, characterized in that: The assembly dimension relationship between the first connection part and the second connection part satisfies that the crown model and the support base are constrained in a direction other than the extraction direction.

3. The dental model according to claim 1, characterized in that: When the first connecting part is inserted into the second connecting part, the first connecting part and the second connecting part are mutually clamped, so that the dental crown model and the supporting base are constrained in a direction other than the extraction direction.

4. The dental model according to claim 1, characterized in that: The first connecting portion includes a first protruding structure extending from a side of the dentition model close to the support base toward a direction away from the corresponding tooth occlusal surface, and the second connecting portion includes a first concave structure arranged on the support base and cooperating with the first protruding structure.

5. The dental model according to claim 4, characterized in that: The first protruding structure is continuously arranged along the mesiodistal direction of the dental arch of the dental crown model.

6. The dental model according to claim 5, characterized in that: The thickness of the first protruding structure in the labio-lingual and / or buccolingual direction of the dentition model is 0.8 mm to 1.2 mm.

7. The dental model according to claim 4, characterized in that: The first protruding structure covers at least two teeth or at least one third of the length of the dental arch in the mesiodistal direction.

8. The dental model according to claim 7, characterized in that: When the first protruding structure does not cover the entire length of the dental arch in the mesiodistal direction, the first connecting portion further includes a support column arranged on the uncovered portion of the dental arch, wherein the support column protrudes from the side of the dental arch model close to the support base toward a direction away from the occlusal surface of the corresponding tooth, wherein the minimum thickness of the support column in the buccal-lingual and / or labio-lingual directions is greater than the thickness of the first protruding structure in the same direction, and the maximum thickness of the support column in the buccal-lingual and / or labio-lingual directions is less than or equal to the width of the tooth at the corresponding position in the same direction.

9. The dental model according to claim 8, characterized in that: The support column and the first protruding structure are arranged adjacent to or spaced apart from each other in the mesiodistal direction of the crown model.

10. The dental model according to claim 8, characterized in that: The support column has a size range of 5 mm to 7 mm in the mesiodistal direction.

11. The dental model according to claim 7, characterized in that: The first protruding structure covers the entire length of the dental arch in the mesiodistal direction.

12. The dental model according to any one of claims 5 to 11, characterized in that: The first protruding structure is arranged axially symmetrically relative to the tooth midline.

13. The dental model according to claim 1, characterized in that: The first connecting portion includes a plurality of second protruding structures extending from the side of the dental arch model close to the supporting base toward a direction away from the occlusal surface of the corresponding teeth, and the second connecting portion includes a second concave structure arranged on the supporting base and cooperating with the second protruding structure; the second protruding structures are arranged at intervals along the mesiodistal direction of the dental arch of the dental crown model.

14. The dental model according to claim 13, characterized in that: A barrier wall is arranged between two adjacent second protruding structures, and the barrier wall is arranged along the mesiodistal direction of the dental arch of the crown model. The barrier wall protrudes from the side of the dental arch model close to the supporting base toward a direction away from the occlusal surface of the corresponding teeth, wherein the minimum thickness of the barrier wall in the buccal and lingual directions and / or the labial and lingual directions is less than the width of the second protruding structure in the same direction.

15. The dental model according to claim 14, characterized in that: The barrier wall and the second protruding structure are arranged adjacent to or spaced apart from each other in the mesiodistal direction of the crown model.

16. The dental model according to claim 14, characterized in that: A height of the barrier wall in the plugging and unplugging direction is less than or equal to a height of the second protruding structure in the plugging and unplugging direction.

17. The dental model according to claim 16, characterized in that: When the height of the barrier wall in the insertion direction is smaller than the height of the second protruding structure in the same direction, after assembly, the surface of the barrier wall adjacent to one side of the support base abuts against the support base.

18. The dental model according to claim 17, characterized in that: A height difference between the barrier wall and the second protruding structure is 2 mm to 5 mm.

19. The dental model according to claim 13, characterized in that: The second protruding structure covers at least half of the width of a tooth in the mesiodistal direction of the dental crown model, and at most covers the width of three consecutive teeth.

20. The dental model according to claim 13, characterized in that: The second protruding structure covers the area of ​​the tooth in the mesiodistal direction of the dental crown model and spans the adjacent tooth gap.

21. The dental model according to any one of claims 13 to 20, characterized in that: The second protruding structure is arranged axially symmetrically with respect to the tooth midline.

22. The dental model according to claim 1, characterized in that: The hardness of the support base and / or the rigidity in the lamination direction are greater than those of the crown model.

23. The dental model according to claim 1 or 22, characterized in that: The supporting base and the dental crown model are made of different materials.

24. A dental crown model used as a mold for hot pressing film forming a shell-shaped dental appliance, characterized in that: It comprises a dentition model and a first connecting part integrally arranged with the dentition model; The first connecting part is used to be pluggably connected to a support base, so that the dental model can be fixed on the support base in a pluggable manner via the first connecting part before the hot pressing film is formed. The support base is provided with a second connecting part, and one of the first connecting part and the second connecting part includes a protruding structure, and the other includes a concave structure cooperating with the protruding structure, and the thickness of the protruding structure in the buccal and lingual sides and / or the labial and lingual sides is smaller than the width of the teeth at the corresponding position in the same direction.

25. A carrier, characterized in that: It includes a main body and a support base arranged on the main body, and the support base is used to be pluggably connected to the crown model described in claim 24, wherein the support base is provided with a second connecting part, and the second connecting part is pluggably connected to the first connecting part, so that before the hot pressing film is formed, the dental arch model is fixed on the support base in a pluggable manner through the cooperation of the first connecting part and the second connecting part, one of the first connecting part and the second connecting part includes a protruding structure, and the other includes a concave structure cooperating with the protruding structure, and the thickness of the protruding structure in the buccal and lingual sides and / or labial and lingual sides is less than the width of the teeth at the corresponding position in the same direction.

26. A dental model system, used as a mold for hot pressing film forming a shell-shaped dental appliance, characterized in that: It includes a separately set crown model and a supporting base, wherein: There are multiple dental crown models, each of which includes a dentition model and a first connecting portion integrally provided with the dentition model; There is at least one supporting base, each supporting base corresponds to at least one dental crown model, and each supporting base includes a second connecting portion corresponding to and cooperatively connected with the first connecting portion of the corresponding dental crown model; The dental crown model is connected to the supporting base in a pluggable manner through the cooperation of the first connecting part and the second connecting part, one of the first connecting part and the second connecting part includes a protruding structure, and the other includes a concave structure cooperating with the protruding structure, and the thickness of the protruding structure in the buccal and lingual sides and / or the labial and lingual sides is smaller than the width of the tooth at the corresponding position in the same direction.

27. The dental model system according to claim 26, characterized in that: At least one of the support bases corresponds to a plurality of the dental crown models, and the first connecting portions on the plurality of the dental crown models corresponding to the same support base are disposed at the same positions.

28. A production system for producing a shell-shaped appliance, characterized in that: include: Feeding assembly, film pressing assembly, cutting assembly, dismantling assembly and transfer assembly, among which, The loading assembly is arranged on the loading station, and is used to assemble the crown model in the dental model according to any one of claims 1 to 23 on a carrier plate fixed with the support base; The transfer assembly is used to transfer the carrier plate after assembling the dental model to the laminating station, the cutting station and the disassembling station respectively according to a predetermined process sequence; The laminating assembly is arranged on the laminating station, and is used to hot-press the film onto the dental model to form a semi-finished appliance when the transport assembly transports the carrier plate to the laminating station; The cutting assembly is disposed on the cutting station and is used to cut the semi-finished appliance on the carrying plate according to a predetermined cutting path when the transport assembly transports the carrying plate to the cutting station; The dismantling assembly is arranged at the dismantling station, and is used to dismantle the appliance part of the cut appliance semi-finished product to obtain a shell-shaped appliance when the transfer assembly transports the carrier plate to the dismantling station; and The transfer component transfers the support base with the semi-finished appliance removed to the loading station so that the loading component can fix the crown model on the support base.

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