Dental jaw model fixing structure, dental jaw model fixing block, dental jaw model and jaw frame

Abstract

The utility model provides a tooth-jaw model fixing structure, a tooth-jaw model fixing block, a tooth-jaw model and a jaw frame, which can enable the tooth-jaw model to be convenient to install and accurate to position so as to meet the digital development requirement of a tooth-jaw assembly. The tooth jaw model fixing structure comprises a tooth jaw model fixing block and a jaw frame; one end of the tooth jaw model is inserted and matched with the slot through the insertion tongue, and a first insertion structure capable of preventing the tooth jaw model from rotating relative to the tooth jaw model fixing block is inserted and connected with one end of the tooth jaw model fixing block; the other end of the tooth jaw model fixing block is inserted and matched with the slot through the insertion tongue, and a second insertion structure capable of preventing the tooth jaw model fixing block from rotating relative to the jaw frame is inserted into the jaw frame; a first locking mechanism is arranged between the tooth jaw model and the tooth jaw model fixing block, and a second locking mechanism is arranged between the jaw frame and the tooth jaw model fixing block. According to the utility model, the subsequent false tooth manufacturing effect and the clinical treatment effect can be improved, the installation is convenient, and the assembly efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of dental medical instruments, in particular to a tooth-jaw model fixing structure, a tooth-jaw model fixing block, a tooth-jaw model and a jaw frame. Background Art

[0002] In the traditional denture manufacturing process, in order to facilitate adjustment during the test, the jaw frame and the dental model need to be connected with plaster to fix the dental model on the jaw frame. For example, a dental model fixed jaw frame assembly is disclosed in Chinese patent application number 202321025337.9.

[0003] With the development of digital technology and 3D printing technology, it has become possible to use digital technology to create a digital model of the jaw frame assembly and then 3D print it. The digital jaw frame assembly includes a dental and maxillary model fixing block and a dental and maxillary model. The digital jaw frame assembly can determine the correct jaw plane position in advance during the modeling process, which can solve many problems in the installation process of traditional dental and maxillary models. In the process of transferring the intraoral occlusal relationship, the dental and maxillary model can be more accurately installed on the jaw frame to complete the subsequent restoration work. If the digital jaw frame assembly continues to use plaster as a connection, this traditional method can meet the needs of oral restoration, but it will have the following defects:

[0004] First, it is difficult to ensure the accuracy of the dental model during the installation process. The jaw plane is still determined by the operator's experience. The dental model is not installed accurately, resulting in the digital dental model not achieving very good results.

[0005] Second, plaster easily sticks to the jaw frame, which is not beautiful and difficult to clean up later. Even if it is not cleaned up, it will affect the accuracy.

[0006] Third, the cost is high, the production process is complicated and time-consuming;

[0007] Fourth, the plaster will be glued to the dental model and cannot be separated, which makes it not only very unsightly but also inconvenient to perform other process steps, such as scanning;

[0008] Therefore, a new method of fixing dental models is needed to meet the needs of the development of digital dental framework components. Utility Model Content

[0009] The technical problem to be solved by the utility model is to provide a dental and maxillary model fixing structure, a dental and maxillary model fixing block, a dental and maxillary model and a jaw frame which can make the dental and maxillary model easy to install and accurately positioned to meet the needs of the digital development of dental and maxillary components.

[0010] The technical solution adopted by the utility model to solve the technical problem is: a dental and jaw model fixing structure, including a dental and jaw model fixing block and a jaw frame;

[0011] One end of the dental and maxillary model is plugged into the slot through an insert tongue and a first plugging structure that can prevent the dental and maxillary model from rotating relative to the dental and maxillary model fixing block is plugged into one end of the dental and maxillary model fixing block, and the other end of the dental and maxillary model fixing block is plugged into the slot through an insert tongue and a second plugging structure that can prevent the dental and maxillary model fixing block from rotating relative to the jaw frame is plugged into the jaw frame;

[0012] A first locking mechanism for locking the position of the dental and maxillary model is provided between the dental and maxillary model and the dental and maxillary model fixing block so as to keep it in an inserted position on the dental and maxillary model fixing block, and a second locking mechanism for locking the position of the dental and maxillary model fixing block is provided between the jaw frame and the dental and maxillary model fixing block so as to keep it in an inserted position on the jaw frame.

[0013] Further, the first locking mechanism includes a ball and a spring;

[0014] The inserting tongue of the first inserting structure is arranged at one end of the dental model, the slot of the first inserting structure is arranged at one end of the dental model fixing block, the side surface of the inserting tongue of the first inserting structure is provided with an arc groove adapted to the spherical surface of the ball, the ball is installed in the channel of the dental model fixing block, and can move along the channel toward and away from the arc groove. The spring is arranged in the channel, and one end abuts against the ball, so that the ball moves toward the arc groove and cooperates with the arc groove.

[0015] Further, the first locking mechanism includes a ball and a spring;

[0016] The slot of the first plug-in structure is arranged at one end of the dental model, the plug-in tongue of the first plug-in structure is arranged at one end of the dental model fixing block, the side of the slot of the first plug-in structure is provided with an arc groove adapted to the spherical surface of the ball, the ball is installed in the channel of the plug-in tongue of the first plug-in structure, and can move along the channel toward and away from the arc groove. The spring is arranged in the channel, and one end abuts against the ball, so that the ball moves toward the arc groove and cooperates with the arc groove.

[0017] Furthermore, the plug tongue of the first plug-in structure is a convex-shaped structural boss provided at one end of the dental and maxillary model fixing block, and is provided toward the front end of the dental and maxillary model fixing block;

[0018] The slot of the first plug-in structure is a convex-shaped structural groove arranged at one end of the dental model and adapted to the convex-shaped structural boss.

[0019] Furthermore, the second locking mechanism comprises a magnet and an iron sheet that attracts the magnet, and the magnet is fixed on the plug tongue of the second plug structure;

[0020] The inserting tongue of the second inserting structure is arranged on the dental and maxillary model fixing block, and the iron sheet is arranged on the jaw frame and is located in front of the magnet.

[0021] Furthermore, the second locking mechanism comprises a magnet and an iron sheet that attracts the magnet, and the magnet is fixed on the plug tongue of the second plug structure;

[0022] The inserting tongue of the second inserting structure is arranged on the jaw frame, and the iron sheet is arranged on the dental and maxillary model fixing block and is located in front of the magnet.

[0023] Furthermore, both front and rear ends of the dental model fixing block are provided with first bosses, and a gap is provided between the first bosses at the front and rear ends to form a slot of the second plug-in structure;

[0024] A second boss is provided on the jaw frame to form an inserting tongue of the second inserting structure, and a side surface of the second boss is provided with a limiting groove which is inserted and matched with the first boss.

[0025] Furthermore, the iron sheet is inserted on the dental model fixing block along a direction perpendicular to the inserting tongue of the second inserting structure.

[0026] A dental and maxillary model fixing block, used for the dental and maxillary model fixing structure, wherein one end of the dental and maxillary model fixing block is provided with a first plugging structure plug tongue for plugging with the dental and maxillary model, and the other end of the dental and maxillary model fixing block is provided with a second plugging structure slot for plugging with the jaw frame, and the plug tongue is provided with a channel for locking the position of the dental and maxillary model, and a ball that is slidably matched with the ball to be matched with the arc groove and a spring that makes the ball roll outward along the channel to be matched with the arc groove;

[0027] The dental and maxillary model fixing block is also provided with an iron sheet for attracting the magnet to lock the position of the dental and maxillary model fixing block to prevent it from being separated from the jaw frame.

[0028] The dental and maxillary model is used for the above-mentioned dental and maxillary model fixing structure. One end of the dental and maxillary model is provided with a slot for plugging with the plug tongue of the dental and maxillary model fixing block, and the side of the slot is provided with an arc groove.

[0029] The jaw frame is used for the above-mentioned dental and maxillary model fixing structure, including an upper jaw frame and a lower jaw frame, both of which are provided with an inserting tongue for inserting with a slot of a dental and maxillary model fixing block, and a magnet is provided on the inserting tongue.

[0030] The beneficial effects of the utility model are as follows: the dental and maxillary model fixing structure, the dental and maxillary model fixing block, the dental and maxillary model and the jaw frame of the utility model, the dental and maxillary model is fixed on the dental and maxillary model fixing block through the first plug-in structure, the dental and maxillary model fixing block is fixed on the jaw frame through the second plug-in structure, the first locking mechanism can lock the dental and maxillary model in the plug-in direction of the first plug-in structure, the second locking mechanism can lock the dental and maxillary model fixing block in the plug-in direction of the second plug-in structure, the 3D printed dental and maxillary model can be accurately fixed on the jaw frame through the corresponding printed dental and maxillary model fixing block, the actual installation position of the 3D printed dental and maxillary model can be closer to the theoretical position, the installation effect of the 3D printed dental and maxillary model can be improved, thereby improving the subsequent denture production effect and clinical treatment effect, the installation is convenient, the assembly efficiency is high, and no objects will remain on the physical jaw frame, which is convenient for subsequent process steps;

[0031] The dental and maxillary model is fixed on the jaw frame by a detachable dental and maxillary model fixing block. The whole is light and can be separated at any time, which greatly facilitates observation and other process processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the dental jaw model fixing structure of the utility model;

[0033] Figure 2 yes Figure 1 A magnified image of point A;

[0034] Figure 3 It is a structural diagram of an embodiment of the first locking mechanism of the utility model;

[0035] Figure 4 It is a schematic diagram of the structure of the dental jaw model;

[0036] Figure 5 yes Figure 4 A top view of

[0037] Figure 6 It is a structural schematic diagram of a dental jaw model fixing block;

[0038] Figure 7 yes Figure 6 Bottom view of

[0039] Figure 8 yes Figure 6 A top view of

[0040] Fig. 9 It is a schematic diagram of the structure of the maxillary rack;

[0041] As shown in the figure: a dental model fixing block 1, a jaw frame 2, a dental model 3, a slot 4, a tongue 5, an iron sheet 6, a magnet 7, a channel 11, a first boss 12, a ball 13, a spring 14, a maxillary frame 22, a mandibular frame 21, an arc groove 31, a second boss 23, and a limiting groove 231. DETAILED DESCRIPTION

[0042] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0043] like Figure 1 As shown, the dental and maxillary model fixing structure of the utility model is mainly suitable for digitally printed dental and maxillary components, including a dental and maxillary model fixing block 1 and a jaw frame 2. One end of the dental and maxillary model 3 is plugged into the slot 4 through a plug tongue 5 and a first plug-in structure that can prevent the dental and maxillary model 3 from rotating relative to the dental and maxillary model fixing block 1 is plugged into one end of the dental and maxillary model fixing block 1, and the other end of the dental and maxillary model fixing block 1 is plugged into the slot 4 through a plug tongue 5 and a second plug-in structure that can prevent the dental and maxillary model fixing block 1 from rotating relative to the jaw frame 2 is plugged into the jaw frame 2. A first locking mechanism for locking the position of the dental and maxillary model 3 is provided between the dental and maxillary model 3 and the dental and maxillary model fixing block 1 so that it is kept in the plug-in position on the dental and maxillary model fixing block 1, and a second locking mechanism for locking the position of the dental and maxillary model fixing block 1 is provided between the jaw frame 2 and the dental and maxillary model fixing block 1 so that it is kept in the plug-in position on the jaw frame 2.

[0044] The dental model and the dental model fixing block are generally printed with resin. The specific printing process is: first build a model of the workpiece, and then the numerical value obtained by the electronic face bow can be directly imported into the digital model position to make it in the correct jaw plane position, and the model is Booleanly processed with the designed dental model fixing block to obtain the final dental model. After the design is confirmed, the dental model fixing block and the final dental model can be printed out by 3D printing.

[0045] The dental model in the utility model can be an upper dental model or a lower dental model. The first locking mechanism and the second locking mechanism can be one or more.

[0046] It can be understood that the plug tongue 5 of the first plug-in structure in the present invention can be set on the dental model 3 or on the dental model fixing block 1, and the plug tongue 4 of the second plug-in structure can be set on the dental model fixing block 1 or on the jaw frame 2.

[0047] In order to prevent rotation, in the present invention, the plug tongue 5 of the plug structure can be a non-circular boss structure such as a square structure, a triangular structure, etc., and correspondingly, the slot 4 of the plug structure can also be a non-circular groove structure such as a square structure, a triangular structure, etc. Of course, the plug tongue and the slot can also be a circular structure, but a plug structure needs to be provided with multiple plug tongues and slots.

[0048] The first locking mechanism and the second locking mechanism may be implemented by latches or locking screws.

[0049] When the dental and maxillary model fixing structure of the utility model is installed, the dental and maxillary model fixing block 1 is first plugged and installed on the jaw frame 2 to ensure that it is plugged in place, and then the dental and maxillary model fixing block 1 is locked by the second locking mechanism to keep it in the plugged position on the jaw frame 2, and then the dental and maxillary model 3 is plugged on the dental and maxillary model fixing block 1 to ensure that the two are plugged in place, and finally the dental and maxillary model 3 is locked by the first locking mechanism to keep it in the plugged position on the dental and maxillary model fixing block 1, and the installation is completed. The dental and maxillary model fixing structure of the utility model has a second plug-in structure that can position the dental and maxillary model fixing block 1 in a direction perpendicular to the plug-in direction of the second plug-in structure, and a second locking mechanism that can lock the dental and maxillary model fixing block 1 in the plug-in direction of the second plug-in structure to prevent it from being separated from the jaw frame, and the dental and maxillary model fixing block 1 can be accurately installed and fixed on the jaw frame, while the first plug-in structure can limit the dental and maxillary model 3 in a direction perpendicular to the plug-in direction of the first plug-in structure, and the first locking mechanism can lock the dental and maxillary model 3 in the plug-in direction of the first plug-in structure to prevent it from being separated from the dental and maxillary model fixing block 1. In this way, the 3D printed dental and maxillary model can be accurately fixed on the jaw frame through the corresponding printed dental and maxillary model fixing block, ensuring the accurate installation of the dental and maxillary model 3.

[0050] In the embodiment of the present utility model, Figure 2 , Figure 4 As shown, the first locking mechanism includes a ball 13 and a spring 14; the slot of the first plug-in structure is arranged at one end of the dental model 3, the tongue 5 of the first plug-in structure is arranged at one end of the dental model fixing block 1, and the side of the slot 4 of the first plug-in structure is provided with an arc groove 31 adapted to the spherical surface of the ball 13, the ball 13 is installed in the channel 11 of the tongue of the first plug-in structure, and can move along the channel 11 to approach and move away from the arc groove 31, and the spring 14 is arranged in the channel 11, and one end of the spring 14 abuts against the ball 13, so that the ball 13 moves in the direction close to the arc groove 31 and cooperates with the arc groove 31. When installing, the ball 13 is pressed to compress the spring 14 and slide into the channel 11, so that the dental model 3 can be installed. When the dental model 3 is inserted into place on the dental model fixing block 1, the ball 13 slides out along the channel 11 under the action of the spring 14, and its side cooperates with the arc groove 31, thereby locking the dental model 3 and keeping it in the plug-in position on the dental model fixing block 1. The above structure can move the dental model 3 to the plug-in position through the cooperation of the ball and the arc groove 31, which is more conducive to ensuring that the dental model 3 is in the plug-in position and the accuracy of its installation.

[0051] As a variation of the above structure, Figure 3 As shown, in another embodiment of the utility model, the first locking mechanism includes a ball 13 and a spring 14; the tongue 5 of the first plug-in structure is arranged at one end of the dental model 3, the slot of the first plug-in structure is arranged at one end of the dental model fixing block 1, and the side of the tongue of the first plug-in structure is provided with an arc groove 31 adapted to the spherical surface of the ball 13, the ball 13 is installed in the channel 11 of the dental model fixing block 1, and can move along the channel 11 in the direction close to and away from the arc groove 31, the spring 14 is arranged in the channel 11, and one end abuts against the ball 13, so that the ball 13 moves in the direction close to the arc groove 31 and cooperates with the arc groove 31.

[0052] Of course, the above structure can also be configured such that the balls and springs are disposed in the dental model 3 , and the arc groove 31 is disposed on the dental model fixing block 1 .

[0053] like Figures 4 to 7 As shown, in the embodiment of the utility model, the plug tongue 5 of the first plug structure is a convex-shaped boss disposed at one end of the dental model fixing block 1 and is disposed toward the front end (lip end) of the dental model fixing block 1; the slot 4 of the first plug structure is a convex-shaped groove disposed at one end of the dental model 3 and adapted to the convex-shaped boss. The plug tongue 5 of the first plug structure is a convex-shaped structure and is disposed toward the front end of the dental model fixing block 1, which can better ensure the connection stability between the dental model fixing block 1 and the dental model 3.

[0054] In the embodiment of the utility model, Figure 1 , Figure 6 , Fig. 9 As shown, the second locking mechanism includes a magnet 7 and an iron sheet 6 that attracts the magnet 7, and the magnet 7 is fixed on the plug tongue of the second plug-in structure; the plug tongue of the second plug-in structure is arranged on the jaw frame 2, and the iron sheet 6 is arranged on the dental model fixing block 1 and is located in front of the magnet 7. The front of the magnet 7 refers to the direction in which the plug tongue of the second plug-in structure is inserted into the corresponding slot. In this way, the dental model fixing block 1 can be tightly plugged into the jaw frame 2 through the mutual attraction between the magnet 7 and the iron sheet 6, so that it can be kept in the plug-in position. The magnet 7 can be set in an inlaid manner, and is generally set at a position directly opposite to the center of the dental model fixing block 1.

[0055] The iron sheet 6 can be arranged in a fixed connection manner, such as bolt or screw connection. In the embodiment of the utility model, the iron sheet 6 is inserted on the dental model fixing block 1 in a direction perpendicular to the plug tongue of the second plug-in structure. Compared with the fixed arrangement, the iron sheet can be pulled out of the dental model fixing block 1 before installing or removing the dental model fixing block 1 by inserting the iron sheet, so that the magnet 7 will not attract the dental model fixing block 1, which is more convenient for its installation and removal.

[0056] As a variation of the above structure, the second locking mechanism includes a magnet 7 and an iron sheet 6 that is attracted to the magnet 7, and the magnet 7 is fixed on the plug tongue of the second plug-in structure; the plug tongue of the second plug-in structure is arranged on the dental model fixing block 1, and accordingly, the slot of the second plug-in structure is arranged on the jaw frame, and the iron sheet 6 is arranged on the jaw frame 2 and is located in front of the magnet 7.

[0057] In the embodiment of the present utility model, Figure 6 , Figure 8 and Fig. 9 As shown, in the embodiment of the utility model, the front and rear ends of the dental and maxillary model fixing block 1 are both provided with a first boss 12, and a gap is provided between the first bosses 12 at the front and rear ends to form a slot 4 of the second plug-in structure; the jaw frame 2 is provided with a second boss 23 to form a tongue 5 of the second plug-in structure, and the side of the second boss 23 is provided with a limiting groove 231 that is plugged in with the first boss 12. The limiting groove 231 is plugged in with the first boss 12 to achieve the limitation in a direction perpendicular to the tongue of the second plug-in structure. The above-mentioned structure tongue has a large contact area with the dental and maxillary model fixing block, which can better support the dental and maxillary model fixing block, and saves more printing materials for the dental and maxillary model fixing block, making it convenient to print.

[0058] like Figures 6 to 8 As shown, the utility model also provides a dental model fixing block for the above structure, one end of the dental model fixing block 1 is provided with a first plug-in structure plug-in tongue 5 for plugging with the dental model 3, the other end of the dental model fixing block 1 is provided with a second plug-in structure slot 4 for plugging with the jaw frame 2, the plug-in tongue 5 is provided with a channel 11 for locking the position of the dental model 3, the channel 11 is provided with a ball 13 that slides with it to cooperate with the arc groove 31 and a spring 14 that makes the ball 13 roll outward along the channel 11 and cooperate with the arc groove 31; the dental model fixing block 1 is also provided with an iron sheet 6 for attracting the magnet 7 to lock the position of the dental model fixing block 1 to prevent it from detaching from the jaw frame 2.

[0059] Figure 4 and Figure 5As shown, the utility model also provides a dental model for the above structure, one end of the dental model is provided with a slot 4 for plugging with the tongue 5 of the dental model fixing block 1, and the side of the slot 4 is provided with an arc groove 32.

[0060] Figure 1 , Fig. 9 As shown, the utility model also provides a jaw frame for the above structure, including an upper jaw frame 22 and a lower jaw frame 21, wherein the upper jaw frame 22 and the lower jaw frame 21 are both provided with an inserting tongue 5 for plugging into the slot 4 of the dental and maxillary model fixing block 1, and a magnet 7 is provided on the inserting tongue 5.

Claims

1. A dental model fixing structure, characterized in that: It comprises a dental and jaw model fixing block (1) and a jaw frame (2); One end of the dental and maxillary model (3) is plugged into the slot (4) via the plug tongue (5) and a first plugging structure capable of preventing the dental and maxillary model (3) from rotating relative to the dental and maxillary model fixing block (1) is plugged into one end of the dental and maxillary model fixing block (1), and the other end of the dental and maxillary model fixing block (1) is plugged into the jaw frame (2) via the plug tongue (5) and a second plugging structure capable of preventing the dental and maxillary model fixing block (1) from rotating relative to the jaw frame (2); A first locking mechanism for locking the position of the dental and maxillary model (3) so as to keep the dental and maxillary model fixing block (1) at an inserted position is provided between the dental and maxillary model (3) and the dental and maxillary model fixing block (1), and a second locking mechanism for locking the position of the dental and maxillary model fixing block (1) so as to keep the dental and maxillary model fixing block (1) at an inserted position is provided between the jaw frame (2) and the dental and maxillary model fixing block (1).

2. The dental model fixing structure according to claim 1, characterized in that: The first locking mechanism comprises a ball (13) and a spring (14); The inserting tongue (5) of the first inserting structure is arranged at one end of the dental model (3), the slot (4) of the first inserting structure is arranged at one end of the dental model fixing block (1), the side surface of the inserting tongue (5) of the first inserting structure is provided with an arc groove (31) adapted to the spherical surface of the ball (13), the ball (13) is installed in the hole (11) of the dental model fixing block (1) and can move along the hole (11) in a direction close to and away from the arc groove (31), and the spring (14) is arranged in the hole (11), one end of which is in contact with the ball (13) so that the ball (13) moves in a direction close to the arc groove (31) and matches with the arc groove (31).

3. The dental model fixing structure according to claim 1, characterized in that: The first locking mechanism comprises a ball (13) and a spring (14); The slot (4) of the first plug-in structure is arranged at one end of the dental model (3), the plug-in tongue (5) of the first plug-in structure is arranged at one end of the dental model fixing block (1), the side surface of the slot (4) of the first plug-in structure is provided with an arc groove (31) adapted to the spherical surface of the ball (13), the ball (13) is installed in the channel (11) of the plug-in tongue (5) of the first plug-in structure, and can move along the channel (11) in a direction close to and away from the arc groove (31), and the spring (14) is arranged in the channel (11), one end of which is in contact with the ball (13), so that the ball (13) moves in a direction close to the arc groove (31) and matches with the arc groove (31).

4. The dental model fixing structure according to claim 3, characterized in that: The inserting tongue (5) of the first inserting structure is a convex-shaped structural boss arranged at one end of the dental model fixing block (1), and is arranged toward the front end of the dental model fixing block (1); The slot (4) of the first plug-in structure is a convex-shaped structural groove arranged at one end of the dental model (3) and adapted to the convex-shaped structural boss.

5. The dental model fixing structure according to any one of claims 1 to 4, characterized in that: The second locking mechanism comprises a magnet (7) and an iron sheet (6) that attracts the magnet (7), and the magnet (7) is fixed on the plug tongue (5) of the second plug-in structure; The plug tongue (5) of the second plug-in structure is arranged on the dental and maxillary model fixing block (1), and the iron sheet (6) is arranged on the jaw frame (2) and is located in front of the magnet (7).

6. The dental model fixing structure according to claim 3 or 4, characterized in that: The second locking mechanism comprises a magnet (7) and an iron sheet (6) that attracts the magnet (7), and the magnet (7) is fixed on the plug tongue (5) of the second plug-in structure; The plug tongue (5) of the second plug-in structure is arranged on the jaw frame (2), and the iron sheet (6) is arranged on the dental and maxillary model fixing block (1) and is located in front of the magnet (7).

7. The dental model fixing structure according to claim 6, characterized in that: The front and rear ends of the dental model fixing block (1) are both provided with first bosses (12), and a gap is provided between the first bosses (12) at the front and rear ends to form a slot (4) of the second plug-in structure; The jaw frame (2) is provided with a second boss (23) to form an insertion tongue (5) of the second insertion structure, and the side surface of the second boss (23) is provided with a limiting groove (231) for inserting and matching with the first boss (12).

8. The dental model fixing structure according to claim 7, characterized in that: The iron sheet (6) is inserted on the dental model fixing block (1) along a direction perpendicular to the insertion tongue (5) of the second insertion structure.

9. A dental and maxillary model fixing block, used for a dental and maxillary model fixing structure according to any one of claims 6 to 8, characterized in that: One end of the dental and maxillary model fixing block (1) is provided with a first plug-in structure plug tongue (5) for plugging into the dental and maxillary model (3), and the other end of the dental and maxillary model fixing block (1) is provided with a second plug-in structure slot (4) for plugging into the jaw frame (2); the plug tongue (5) is provided with a hole (11) for locking the position of the dental and maxillary model (3); a ball (13) is provided in the hole (11) for slidingly cooperating with the ball (13) for cooperating with the arc groove (31), and a spring (14) for causing the ball (13) to roll outward along the hole (11) and to cooperate with the arc groove (31); The dental and maxillary model fixing block (1) is also provided with an iron sheet (6) for attracting the magnet (7) to lock the position of the dental and maxillary model fixing block (1) and prevent it from being separated from the jaw frame (2).

10. A dental and maxillary model, used for a dental and maxillary model fixing structure according to any one of claims 6 to 8, characterized in that: One end of the dental model is provided with a slot (4) for plugging into a plug tongue (5) of a dental model fixing block (1), and a side surface of the slot (4) is provided with an arc groove (31).

11. A jaw frame, used for a dental and maxillary model fixing structure as claimed in any one of claims 6 to 8, comprising an upper jaw frame (22) and a lower jaw frame (21), characterized in that: The maxillary frame (22) and the mandibular frame (21) are both provided with an inserting tongue (5) for inserting into a slot (4) of a dental and maxillary model fixing block (1), and a magnet (7) is provided on the inserting tongue (5).

Images