Composite jaw model

Abstract

The utility model discloses a composite dental and jaw model, comprising: an upper jaw model, a lower jaw model and a positioning component capable of locking the relative position relationship between the upper and lower jaws; the upper jaw model comprises an upper jaw tooth part and an upper jaw supporting part supporting the upper jaw tooth part; the lower jaw model comprises a lower jaw tooth part and a lower jaw supporting part supporting the lower jaw tooth part; the positioning component comprises an upper jaw positioning piece connected to the upper jaw supporting part and a lower jaw positioning piece connected to the lower jaw supporting part; wherein, after the upper jaw positioning piece and the lower jaw positioning piece are directly or indirectly assembled, the relative position of the upper and lower jaws of the composite dental and jaw model can be positioned to the corresponding position of the patient's target jaw position.

Description

Technical Field

[0001] The utility model belongs to the technical field of dental orthodontics, and more precisely relates to dental instrument manufacturing technology, in particular to a composite tooth-jaw model. Background Art

[0002] In the field of dental orthodontic technology, shell-shaped dental instruments based on polymer materials are becoming more and more popular due to their advantages such as beauty, convenience and ease of cleaning. Shell-shaped dental instruments are usually an integrated shell that forms a cavity to accommodate multiple teeth, and the geometry of the cavity is basically consistent with the teeth under the corresponding layout. Shell-shaped dental instruments include maxillary shell-shaped dental instruments and mandibular shell-shaped dental instruments. During the processing, the physical models of the upper and lower jaw dentition are usually printed separately, and then the maxillary shell-shaped dental instruments and mandibular shell-shaped dental instruments are made separately through a hot pressing film process. However, in addition to tooth information, the dentition arrangement information also has a very important information, namely the jaw position information. However, the jaw position information cannot be reflected during processing, or the target jaw position information cannot be accurately copied, resulting in inaccurate jaw position positioning of the manufactured shell-shaped dental instrument, resulting in poor orthodontic effect or failure to achieve the expected orthodontic effect. For example, with respect to shell-shaped dental devices used for jaw reconstruction or snoring control, in the target jaw position, the upper and lower teeth usually have no contact or point contact with the front teeth, and no contact with the posterior teeth. In this case, if the upper and lower shell-shaped dental devices formed separately by processing cannot accurately position the required jaw relationship, it is impossible to obtain a shell-shaped dental device with a jaw position, and it is impossible to accurately position the required target jaw position, the expected orthodontic effect cannot be achieved.

[0003] Therefore, it is necessary to provide a dental model that can locate the patient's target jaw relationship. Utility Model Content

[0004] The technical problem solved by the utility model is to overcome the defects of the prior art and provide a composite tooth-jaw model capable of locating the target jaw position relationship of the patient.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A composite dental model includes: an upper jaw model, a lower jaw model and a positioning component capable of locking the relative position relationship between the upper and lower jaws; the upper jaw model includes an upper jaw tooth part and an upper jaw support part supporting the upper jaw tooth part; the lower jaw model includes a lower jaw tooth part and a lower jaw support part supporting the lower jaw tooth part; the positioning component includes an upper jaw positioning part connected to the upper jaw support part and a lower jaw positioning part connected to the lower jaw support part; wherein, after the upper jaw positioning part and the lower jaw positioning part are directly or indirectly assembled, the relative position of the upper and lower jaws of the composite dental model can be positioned to the corresponding position of the patient's target jaw position. By adding the positioning component, the jaw position relationship of the upper and lower jaws when the patient's dentition is in the target jaw position can be accurately replicated, and the composite dental model can be used to process dental instruments that require accurate jaw position relationships, or can be used to check the jaw position of dental instruments.

[0007] Preferably, the maxillary support part is a maxillary gingival part consistent with the maxillary gingival shape of the patient, and the mandibular support part is a mandibular gingival part consistent with the mandibular gingival shape of the patient. This support part structure is simple and easy to operate in processing, and can save raw materials for printing dental models.

[0008] Preferably, one end of the maxillary positioning member is connected to the lingual side or the lip and cheek side of the maxillary support portion, forming at least three non-collinear connection points on the maxillary support portion, and one end of the mandibular positioning member is connected to the lingual side or the lip and cheek side of the mandibular support portion, forming a mandibular connection point on the mandibular support portion corresponding to the maxillary connection point. By connecting the maxillary positioning member to the maxillary support portion and the mandibular positioning member to the mandibular support portion respectively through at least three non-collinear connection points, the connected positioning assembly can be stably supported between the maxillary dental model and the mandibular dental model without increasing the complexity of the structure, thereby being able to accurately locate the required jaw position relationship.

[0009] Preferably, the front teeth region of the support part of the same jaw is provided with a first connection point, and the left and right sides of the back teeth region of the support part of the same jaw are provided with a second connection point and a third connection point, respectively. Such connection points of the front teeth region and the back teeth region are arranged in a triangle, which has a strong stability.

[0010] Preferably, when the upper jaw positioning member and the lower jaw positioning member are directly assembled, the upper jaw positioning member includes an upper jaw connecting member connected to the upper jaw supporting portion and a first auxiliary positioning member integrally connected to the upper jaw connecting member, and the lower jaw positioning member includes a lower jaw connecting member connected to the lower jaw supporting portion and a second auxiliary positioning member integrally connected to the lower jaw connecting member, wherein the first auxiliary positioning member and the second auxiliary positioning member are respectively provided with corresponding concave-convex matching structures. The concave-convex matching structure design is used to facilitate installation and disassembly.

[0011] Preferably, the maxillary connecting piece is extended along the lingual side or the labial and buccal side of the maxillary supporting portion, the first auxiliary positioning piece is extended from one end connected to the maxillary connecting piece toward the mandibular direction, the mandibular connecting piece is extended along the lingual side or the labial and buccal side of the mandibular supporting portion, and is consistent with the extension direction of the maxillary connecting piece, and the second auxiliary positioning piece is extended from one end connected to the mandibular connecting piece toward the mandibular direction.

[0012] Preferably, the first auxiliary positioning member and the second auxiliary positioning member are in a columnar structure as a whole, and the columnar structure is an arc column structure or a straight rod structure.

[0013] Preferably, when the maxillary positioning member and the mandibular positioning member are indirectly assembled through the third auxiliary positioning member, the maxillary positioning member and the mandibular positioning member extend along the lingual side or labial and buccal side of the maxillary supporting portion and the mandibular supporting portion respectively and are arranged correspondingly, the two ends of the third auxiliary positioning member are respectively connected to the maxillary positioning member and the mandibular positioning member, and at least one end of the third auxiliary positioning member is detachably connected to the maxillary positioning member or the mandibular positioning member through a concave-convex matching structure.

[0014] Preferably, the third auxiliary positioning member is in a columnar structure as a whole, and the columnar structure is an arc column structure or a straight rod structure.

[0015] Preferably, both ends of the third auxiliary positioning member are detachably connected to the maxillary positioning member and the mandibular positioning member via concave-convex matching structures. By setting both ends of the third auxiliary positioning member as detachably connected, the third auxiliary positioning member can be easily adjusted and replaced, so that different target jaw positions can be adjusted and positioned according to clinical needs.

[0016] Preferably, the upper jaw positioning member and / or the lower jaw positioning member are provided with a plurality of mounting portions for mounting the third auxiliary positioning member at intervals along the extension direction thereof and on the surface facing the opposing jaw positioning member, and the mounting portions are convex structures or groove structures. The design of the plurality of mounting portions facilitates adjustment of the mounting position of the third auxiliary positioning member according to clinical needs, thereby being used to adjust and position different target jaw positions.

[0017] Preferably, when the mounting portion is a groove structure, different groove structures have different radial depths. Different jaw heights can be adjusted by using different radial depths of the groove structures.

[0018] Preferably, the composite dental model includes a plurality of third auxiliary positioning members of different heights, and the third auxiliary positioning members of different heights can position the relative position of the upper and lower jaws of the composite dental model to positions corresponding to different jaw heights of the patient. By replacing the third auxiliary positioning members of different heights, different jaw heights can be adjusted.

[0019] Preferably, the upper jaw positioning member and the upper jaw supporting portion are detachably connected via a concave-convex matching structure, and / or the lower jaw positioning member and the lower jaw supporting portion are detachably connected via a concave-convex matching structure. The design of such a detachable structure, on the one hand, facilitates adjustment of the installation position of the upper jaw positioning member and the lower jaw positioning member or replacement of the upper jaw positioning member and the lower jaw positioning member to meet the needs of positioning different jaw positions; on the other hand, when hot pressing the film to obtain the corresponding shell-shaped dental instrument, there is no need to install the upper jaw positioning member and the lower jaw positioning member, which facilitates film pressing, prying and cutting; and when positioning the jaw position, the upper jaw positioning member and the lower jaw positioning member are installed to facilitate accurate replication and positioning of the target jaw position relationship.

[0020] Preferably, the composite dental-jaw model comprises a plurality of different positioning components, and different maxillary positioning pieces and / or mandibular positioning pieces have different connection points with the same jaw support portion; or, different maxillary positioning pieces and / or mandibular positioning pieces have different lengths; so as to position the relative positions of the upper and lower jaws of the composite dental-jaw model to positions corresponding to different target jaw positions of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 numerical labels represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0022] Figure 1 This is a schematic diagram of the structure of a composite dental model in one embodiment of the utility model;

[0023] Figures 2 to 4 It is a schematic diagram of the structure of the composite jaw model in other embodiments of the present invention;

[0024] Figure 5 to Fig. 9 It is a schematic diagram of the structure of the maxillary dental jaw model in other embodiments of the present invention;

[0025] Figures 10 to 12 Schematic diagram of the maximum protrusion of the patient's mandible in other embodiments of the present invention;

[0026] Fig.13 It is a cross-sectional schematic diagram of a positioning assembly in one embodiment of the utility model;

[0027] Fig.14 It is a cross-sectional schematic diagram of the assembly of the maxillary positioning member and the third auxiliary positioning member in another embodiment of the utility model;

[0028] Fig.15 This is a schematic structural diagram of multiple mounting parts in another embodiment of the utility model;

[0029] Fig.16 and Fig.17 It is a cross-sectional schematic diagram of the positioning assembly in other embodiments of the utility model;

[0030] Fig.18 It is a schematic structural diagram of the maxillary dental model in another embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the various embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings. However, it can be understood by those skilled in the art that in each embodiment of the utility model, many technical details are proposed in order to enable readers to better understand the utility model. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed for protection of the utility model can also be implemented. The division of the following embodiments is for the convenience of description and should not constitute any limitation on the specific implementation of the utility model.

[0032] Directional terms such as "upper", "lower", "left", and "right" used in the description herein are directions in the drawings and do not refer to special limitations. Unless otherwise specified and limited, the term "connection" in this article should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be directly connected or indirectly connected through an intermediate medium.

[0033] The "posterior tooth area" mentioned in each embodiment of the present invention is 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, 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.

[0034] As can be seen from the background technology, the jaw position information cannot be reflected during the processing of shell-shaped dental appliances, especially for shell-shaped dental appliances used for jaw reconstruction or snoring control. At the target jaw position, the upper and lower teeth are usually not in contact or point contact with the front teeth, and the posterior teeth are not in contact. In this case, if the upper and lower shell-shaped dental appliances formed by separate processing cannot accurately locate the required jaw position relationship, it is impossible to obtain a shell-shaped dental appliance with a jaw position, and it is impossible to accurately locate the required target jaw position, which ultimately leads to the failure to achieve the expected orthodontic effect.

[0035] Based on this, the applicant proposed a composite dental model, comprising: a maxillary dental model, a mandibular dental model and a positioning component capable of locking the relative position relationship between the upper and lower jaws; the maxillary dental model comprises a maxillary tooth part and a maxillary support part supporting the maxillary tooth part; the mandibular dental model comprises a mandibular tooth part and a mandibular support part supporting the mandibular tooth part; the positioning component comprises a maxillary positioning piece connected to the maxillary support part and a mandibular positioning piece connected to the mandibular support part; wherein, after the maxillary positioning piece and the mandibular positioning piece are directly or indirectly assembled, the relative position of the upper and lower jaws of the composite dental model can be positioned to the corresponding position of the patient's target jaw position.

[0036] Please see Figures 1 to 12 As shown, the composite dental model 100 of the present application includes a maxillary dental model 1, a mandibular dental model 2 and a positioning component 3, wherein the positioning component 3 can lock the relative position relationship between the maxillary dental model 1 and the mandibular dental model 2, and the relative position relationship locked is consistent with the relative position relationship between the upper and lower jaws of the patient when the upper and lower jaws are in the target jaw position. The maxillary dental model 1 includes a maxillary tooth part 11 and a maxillary support part capable of supporting the maxillary tooth part 11, and the mandibular dental model 2 includes a mandibular tooth part 21 and a mandibular support part supporting the mandibular tooth part 21, wherein the tooth layout of the maxillary tooth part 11 and the mandibular tooth part 21 is consistent with the tooth layout of the patient. The positioning assembly 3 includes an upper jaw positioning member 31 connected to the upper jaw support portion, and a lower jaw positioning member 32 connected to the lower jaw support portion; wherein the upper jaw positioning member 31 and the lower jaw positioning member 32 can be directly assembled or indirectly assembled, and after assembly, the upper and lower jaws of the composite dental jaw model 100 can be positioned relative to each other to the positions corresponding to the upper and lower jaws when the patient is in the target jaw position. The target jaw position can be the jaw position relationship in any state required by the clinician, and the common ones include the jaw position relationship when the patient is in the maximum occlusal position, and the jaw position relationship when the patient's mandible is in the maximum protrusive position, or the target jaw position after the clinician determines the jaw position reconstruction.

[0037] In some embodiments, please continue to see Figures 1 to 3As shown, the maxillary support portion and the mandibular support portion are respectively a maxillary gingival portion 12 consistent with the patient's maxillary gingival morphology and a mandibular gingival portion 22 consistent with the patient's mandibular gingival morphology; the maxillary positioning member 31 is connected to the maxillary gingival portion 12, and the mandibular positioning member 32 is connected to the mandibular gingival portion 22. Such a structure of upper and lower mandibular support portions is simple and easy to manufacture. For example, when a patient undergoes an oral scan, the gingival portion can be directly obtained by scanning the gingival portion at the same time, or a virtual gingival portion can be generated in the design software based on the tooth information. It is understandable that the upper and lower mandibular support portions do not need to match the upper and lower mandibular gingiva, but directly after the oral scan, the corresponding upper and lower mandibular support structures are automatically or manually added in the design software, such as a support plate structure.

[0038] In other embodiments, please continue to refer to Figure 4 As shown, the maxillary support portion includes a maxillary gingival portion 12 that is consistent with the patient's maxillary gingival morphology and a maxillary support plate 13 connected to the bottom surface of the maxillary gingival portion 12 on the side away from the maxillary tooth portion 11, and at this time, the maxillary positioning member 31 is arranged on the maxillary support plate 13; the mandibular support portion includes a mandibular gingival portion 22 that is consistent with the patient's mandibular gingival morphology and a mandibular support plate 23 connected to the bottom surface of the mandibular gingival portion 22 on the side away from the mandibular tooth portion 21, and at this time, the mandibular positioning member 32 is arranged on the mandibular support plate 23.

[0039] In some embodiments, the first end of the maxillary positioning member 31 is connected to the lingual side or the labial and buccal side of the maxillary support portion, and one end of the mandibular positioning member 32 is connected to the lingual side or the labial and buccal side of the mandibular support portion. In order to ensure the stable assembly of the maxillary positioning member 31 and the mandibular positioning member 32, the maxillary positioning member 31 forms at least three non-collinear connection points on the maxillary support portion, and the mandibular positioning member 32 forms connection points of the mandible corresponding to the connection points of the maxilla on the mandibular support portion. The at least three non-collinear connection points can make the connection between the maxillary positioning member 31 and the maxillary support portion more stable, so that the target jaw position relationship can be accurately replicated and positioned. Of course, it can be understood that in other embodiments, the connection point can also be 1 or 2. For example, when the connection point is 1, the present application sets the connection point at the lingual center of the maxillary dental model or the mandibular dental model; when the connection point is 2, the present application sets the two connection points in the anterior tooth area and the posterior tooth area respectively; but preferably, the maxillary support part and the mandibular support part at this time respectively include a support plate structure set on the bottom surface of the same jaw gum part away from the same jaw tooth part. This design structure is simple, but from the perspective of stability, it is not as stable as three connection points; in other embodiments, the connection points can also be 4 or 5 or more, among which at least one non-collinear connection point is set, and more than 3 connection points can be guaranteed in terms of stability, however, it will increase the complexity of the structure and involve more raw materials, so in clinical practice, in terms of positioning stability and structural simplification, it is preferred to set three non-collinear connection points.

[0040] To illustrate the location of the connection points, please refer to FIGS. Fig. 9 As shown, the maxillary dental model 1 is used as an example for explanation. It should be noted that the connection points on the mandibular dental model 2 and the connection points on the maxillary dental model 1 have a one-to-one correspondence, so they are not repeated in the specification of this application. Specifically, in some embodiments, as shown in Figure 5, the maxillary support portion is a maxillary gingival portion 12 that is consistent with the shape of the maxillary gingiva, and the first end of the maxillary positioning member 31 is connected to the labial side of the anterior tooth area of ​​the maxillary gingival portion 12 to form a first connection point A located in the anterior tooth area, and the maxillary positioning member 31 is respectively connected to the buccal sides of the posterior tooth area to form a second connection point B and a third connection point C located in the posterior tooth area. In other embodiments, as shown in FIG6 , the maxillary support portion is a maxillary gingival portion 12 that is consistent with the shape of the maxillary gingiva, the first end of the maxillary positioning member 31 disposed in the anterior tooth region is connected to the lingual side of the maxillary gingival portion 12 to form a first connection point A, and the maxillary positioning member 31 disposed in the posterior tooth region is connected to the distal end of the last tooth on both sides of the posterior tooth region to form a second connection point B and a third connection point C, respectively. In other embodiments, as Figure 7 As shown, the maxillary support portion includes a maxillary gingival portion 12 that is consistent with the shape of the maxillary gingiva, the first end of the maxillary positioning member 31 is respectively connected to the labial side of the anterior tooth area of ​​the maxillary gingival portion 12 to form a first connection point A, and the maxillary positioning member 31 is respectively connected to the buccal sides of the posterior tooth area of ​​the maxillary gingival portion 12 to form a second connection point B and a third connection point C. In other embodiments, such as Figure 8 As shown, the maxillary support portion is a maxillary gingival portion 12 that is consistent with the shape of the maxillary gingiva, the first ends of the maxillary positioning member 31 are respectively connected to the labial side of the anterior tooth area of ​​the maxillary gingival portion 12 to form a first connection point A, and the maxillary positioning member 31 is respectively connected to the lingual sides of both sides of the posterior tooth area of ​​the maxillary gingival portion 12 to form a second connection point B and a third connection point C, wherein the second connection point B and the third connection point C of the posterior tooth area are connected by a connecting rod 6, and when the maxillary positioning member 31 and the mandibular positioning member 32 are directly assembled, the connecting rod 6 is directed toward At least one of the first auxiliary positioning members (not shown) is disposed on the side surface facing the mandibular direction; when the maxillary positioning member 31 and the mandibular positioning member 32 are indirectly assembled through the third auxiliary positioning member 33, at least one mounting portion 5 that can match the third auxiliary positioning member 33 is disposed on the side surface of the connecting rod 6 facing the mandibular direction (the mounting portion 5 will be described in other embodiments below); of course, it can be understood that the first end of the maxillary positioning member 31 disposed in the anterior tooth area can also be connected to the lingual side of the anterior tooth area of ​​the maxillary gingival portion 12. In other embodiments, such as Fig. 9 As shown, the maxillary support portion includes a maxillary gingival portion 12 consistent with the shape of the maxillary gingiva and a maxillary support plate 13 connected to the bottom surface of the maxillary gingival portion 12 on a side away from the maxillary tooth portion 11, and the three connection points are formed by connecting the maxillary positioning piece 31 and the maxillary support plate 13.

[0041] In other embodiments, the second connection point B and the third connection point C formed in the posterior tooth area of ​​the composite dental jaw model can be symmetrically arranged about the tooth midline. Such a symmetrical arrangement can obtain a more stable support.

[0042] In some embodiments, please continue to see Figures 1 to 3As shown, the maxillary positioning member 31 and the mandibular positioning member 32 are directly assembled, and the maxillary positioning member 31 includes a maxillary connecting member 311 connected to the maxillary supporting portion and a first auxiliary positioning member 312 integrally connected to the maxillary connecting member 311. In this embodiment, the maxillary connecting member 311 is a rod-shaped structure arranged in the labial direction of the maxillary gingival portion 12 and in the posterior tooth area along the dental arch direction on the distal end side of the last tooth model in the posterior tooth area. The first auxiliary positioning member 312 is integrally arranged on the maxillary connecting member 311. A mandibular locator 32 is arranged away from one end of the maxillary gingival portion 12 and extending toward the mandible; the mandibular locator 32 includes a mandibular connector 321 connected to the mandibular support portion and a second auxiliary locator 322 integrally connected to the mandibular connector 321, the mandibular connector 321 is a rod-shaped structure arranged in the labial direction of the mandibular gingival portion 22 and in the posterior tooth area along the dental arch direction and on the distal end of the last tooth model in the posterior tooth area, and the extension direction of the mandibular connector 321 is consistent with the extension direction of the maxillary connector 311. Among them, one end of the proximal free end of the first auxiliary locator 312 and one end of the proximal free end of the second auxiliary locator 322 are respectively provided with corresponding concave-convex matching structures 4, which can be as shown in the figure. Figure 1 and Figure 3 As shown, a protrusion structure is provided at the free end of the first auxiliary positioning member 312 and facing the mandibular direction, and a groove structure matching the protrusion structure is provided at the corresponding position of the free end of the second auxiliary positioning member 322 and facing the maxillary direction; of course, it can be understood that a groove structure can also be provided at the free end of the first auxiliary positioning member 312 and facing the mandibular direction, and a protrusion structure matching the groove structure can also be provided at the corresponding position of the free end of the second auxiliary positioning member 322 and facing the maxillary direction. Figure 2 As shown, a protruding structure is provided on a section of the side surface of the first auxiliary positioning member 312 adjacent to its free end and facing the tongue side, and a groove structure matching the protruding structure is provided on a section of the side surface of the second auxiliary positioning member 322 adjacent to its own free end and facing the lip side; of course, it can be understood that a protruding structure can also be provided on a section of the side surface of the first auxiliary positioning member 312 adjacent to its own free end and facing the tongue side, and a protruding structure matching the groove structure is provided on a section of the side surface of the second auxiliary positioning member 322 adjacent to its own free end and facing the lip side; or, corresponding concave-convex matching structures 4 are provided on a section of the side surface of the first auxiliary positioning member 312 adjacent to its own free end and facing the lip side and on a section of the side surface of the second auxiliary positioning member 322 adjacent to its own free end and facing the tongue side.

[0043] Further explanation, the matching means that the shape and size of the groove structure are consistent with the shape and size of the convex structure. When the groove structure and the convex structure are matched, the first auxiliary positioning member 312 and the second auxiliary positioning member 322 can be stably connected together to reliably lock the relative position relationship between the maxillary dental model 1 and the mandibular model. The convex structure can be spherical, cylindrical or polygonal prism-shaped as a whole.

[0044] Further, the first auxiliary positioning member 312 and the second auxiliary positioning member 322 are in a columnar structure as a whole. Figure 1 and Figure 2 The straight rod structure is shown; it can also be Figure 3 The arc structure is shown. The design of the arc structure can avoid collision with the upper and lower jaw models 2.

[0045] In some other embodiments, see Figures 10 to 12 As shown, when the maxillary positioning member 31 and the mandibular positioning member 32 are indirectly assembled through the third auxiliary positioning member 33, the maxillary positioning member 31 and the mandibular positioning member 32 extend along the lingual side or labial and buccal side of the maxillary support portion and the mandibular support portion respectively and are arranged correspondingly, and the two ends of the third auxiliary positioning member 33 are respectively connected to the maxillary positioning member 31 and the mandibular positioning member 32, and at least one end of the third auxiliary positioning member 33 is detachably connected to the maxillary positioning member 31 or the mandibular positioning member 32 through the concave-convex matching structure 4. Among them, the third auxiliary positioning member 33 can have one end detachably connected to the corresponding maxillary positioning member 31 or mandibular positioning member 32 through the concave-convex matching structure 4, or the two ends can be detachably connected to the maxillary positioning member 31 and the mandibular positioning member 32 respectively.

[0046] In some embodiments, each pair of the concave-convex matching structures 4 includes a convex structure and a concave-convex matching groove structure with the convex structure, wherein the groove structure has an opening structure near one end of the convex structure, and a receiving cavity is provided in the groove structure, and the convex structure is detachably plugged into the receiving cavity via the opening structure. Fig.13 and Fig.14 As shown, the upper jaw positioning member 31 and / or the lower jaw positioning member 32 is a groove structure arranged on the side surface facing the opposing jaw.

[0047] In some embodiments, please continue to see Fig.14As shown, the side wall of the receiving cavity has a first inclined portion 50, so that the cross-sectional area of ​​the receiving cavity gradually decreases in the direction away from the opening structure, and the overall cross-section is trapezoidal; the protruding structure has a second inclined portion 40, and the second inclined portion 40 is in parallel contact with the first inclined portion 50, so that the protruding structure and the groove structure can be stably matched and installed, and are convenient for installation and disassembly.

[0048] In some embodiments, when both ends of the third auxiliary positioning member 33 are detachably connected, there may be multiple third auxiliary positioning members 33, and the multiple third auxiliary positioning members 33 have different heights or shapes. Different third auxiliary positioning members 33 may be replaced according to different target jaw position requirements, such as Fig.10 Corresponding to the first target jaw position, when the same jaw model needs a composite jaw model 100 at the second target jaw position, it can be adjusted by replacing the third auxiliary positioning member 33 of different shapes, such as Fig.12 As shown, the third auxiliary positioning member 33 connected to the front teeth area is a bent columnar structure, which can guide the mandible forward to a jaw position that is more forward along the sagittal direction. In other embodiments, by using third auxiliary positioning members 33 of different heights, at least the effective jaw height between the upper and lower jaws can be adjusted.

[0049] In some embodiments, the upper jaw positioning member 31 and / or the lower jaw positioning member 32 are provided with a plurality of mounting portions 5 for mounting the third auxiliary positioning member 33 at intervals along the extension direction thereof and on the surface facing the opposing jaw positioning member, and the mounting portions 5 are convex structures (not shown) or groove structures (such as Fig.15 shown).

[0050] In some embodiments, see Fig.16 and Fig.17 As shown, when the plurality of mounting portions 5 are groove structures, the radial depths of different groove structures are different. In clinical practice, under this design, only one third auxiliary positioning member may be provided, and the doctor may also adjust the height of the jaw positioned by the composite dental model by selecting different groove structures. At this time, the effective height of the jaw is determined by the height of the third auxiliary positioning member 33 and the radial depth of the groove structure. This structural design can not only reduce the use of raw materials without increasing the number of parts, but also enable the composite dental model 100 to meet more jaw requirements. According to different jaw requirements, the position of the third auxiliary positioning member can be adjusted, that is, groove structures with different radial depths can be selected for installation. Among them, respectively, Fig.16 and Fig.17 Specifically, in Fig.16 and Fig.17The same thing is that the auxiliary positioning member 33 has the same height h, while the radial depths of the two groove structures (5a and 5b, respectively) are different (h1 and h2, respectively). When the auxiliary positioning member 33 is installed in the groove structure 5a, the effective height H1 of the jaw is: H1 = h-2*h1; when the auxiliary positioning member 33 is installed in the groove structure 5b, the effective height H2 of the jaw satisfies the following relationship: H2 = h-2*h2; the greater the radial depth of the groove structure, the smaller the effective height of the jaw, and at this time, the target jaw height positioned by the composite dental model 100 is smaller; conversely, the greater. Although the height h of the third auxiliary positioning member 33 is the same, by installing the third auxiliary positioning member 33 in different groove structures, the effective height of the jaw can be adjusted without adding the third auxiliary positioning member.

[0051] In some embodiments, the maxillary positioning member 31 and the maxillary support portion can also be detachably connected via a concave-convex matching structure 4, and the mandibular positioning member 32 and the mandibular support portion can also be detachably connected via a concave-convex matching structure 4. As for the setting of the concave-convex matching structure 4, it is consistent with what has been described above in the specification of this application, and will not be repeated here. In this embodiment, the composite dental model 100 includes a plurality of different positioning components 3, and the different positioning components 3 can be implemented through different settings. In some embodiments, please refer to Fig.18 As shown, taking the maxillary dental model 1 as an example, the letters A, B, C, D, E, F, G, H, and I in the figure are used to indicate the setting positions of the connection points. Combination one (A, B, C), combination two (D, E, F), and combination three (G, H, I) respectively indicate three different connection point combinations. Of course, it is not limited to this fixed combination method. For example, it can also be a combination of multiple connection points such as A, D, I or B, E, F, etc., and the jaw position relationship positioned by the composite dental model 100 can be adjusted through different connection point combinations.

[0052] In other embodiments, it is also possible to match maxillary positioning pieces and / or mandibular positioning pieces of different lengths to position the relative positions of the upper and lower jaws of the composite dental and maxillary model to positions corresponding to different target jaw positions of the patient. For example, for the same patient's dental and maxillary jaws, different jaw position requirements can be achieved by changing the lengths of the maxillary positioning pieces and the mandibular positioning pieces, such as the occlusal position at the maximum staggered position, when the incisal end of the anterior teeth is facing the incisal end, or when the mandibular protrudes to the maximum protrusive position, that is, to locate the relative position relationship of the upper and lower jaws when different requirements are met.

[0053] It should be noted that the above embodiments can be freely combined as needed to form different new implementation plans without causing any contradiction. The implementation plans formed after such combination are all within the scope of protection of this application. In order to save the length of the application text, they will not be repeated here.

[0054] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the creative principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present application.

[0055] Similarly, the above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A composite dental model, characterized in that: include: Maxillary dental model, mandibular dental model and positioning components capable of locking the relative position relationship between the upper and lower jaws; The maxillary dental model includes a maxillary tooth part and a maxillary supporting part supporting the maxillary tooth part; The mandibular dental model includes a mandibular tooth part and a mandibular supporting part supporting the mandibular tooth part; The positioning assembly includes an upper jaw positioning member connected to the upper jaw supporting portion and a lower jaw positioning member connected to the lower jaw supporting portion; wherein, after the upper jaw positioning member and the lower jaw positioning member are directly or indirectly assembled, the relative position of the upper and lower jaws of the composite dental model can be positioned to the corresponding position of the patient's target jaw position.

2. The composite dental model according to claim 1, characterized in that: The maxillary supporting portion is a maxillary gingival portion consistent with the maxillary gingival shape of the patient, and the mandibular supporting portion is a mandibular gingival portion consistent with the mandibular gingival shape of the patient.

3. The composite dental model according to claim 2, characterized in that: One end of the maxillary positioning member is connected to the lingual side or the lip and cheek side of the maxillary supporting portion, forming at least three non-collinear connection points on the maxillary supporting portion; one end of the mandibular positioning member is connected to the lingual side or the lip and cheek side of the mandibular supporting portion, forming a mandibular connection point on the mandibular supporting portion corresponding to the maxillary connection point.

4. The composite dental model according to claim 3, characterized in that: A first connection point is arranged in the front teeth region of the support part of the same jaw, and a second connection point and a third connection point are arranged on the left and right sides of the back teeth region of the support part of the same jaw respectively.

5. The composite dental model according to claim 1, characterized in that: When the maxillary positioning member and the mandibular positioning member are directly assembled, the maxillary positioning member includes a maxillary connecting member connected to the maxillary supporting portion and a first auxiliary positioning member integrally connected to the maxillary connecting member, and the mandibular positioning member includes a mandibular connecting member connected to the mandibular supporting portion and a second auxiliary positioning member integrally connected to the mandibular connecting member, wherein the first auxiliary positioning member and the second auxiliary positioning member are respectively provided with corresponding concave and convex matching structures.

6. The composite dental model according to claim 5, characterized in that: The maxillary connecting piece is extended along the lingual side or the labial and buccal side of the maxillary supporting part, the first auxiliary positioning piece is extended from one end connected to the maxillary connecting piece toward the mandibular direction, the mandibular connecting piece is extended along the lingual side or the labial and buccal side of the mandibular supporting part, and is consistent with the extension direction of the maxillary connecting piece, and the second auxiliary positioning piece is extended from one end connected to the mandibular connecting piece toward the mandibular direction.

7. The composite dental model according to claim 5, characterized in that: The first auxiliary positioning member and the second auxiliary positioning member are in a columnar structure as a whole, and the columnar structure is an arc column structure or a straight rod structure.

8. The composite dental model according to claim 1, characterized in that: When the maxillary positioning member and the mandibular positioning member are indirectly assembled through the third auxiliary positioning member, the maxillary positioning member and the mandibular positioning member extend along the lingual side or labial and buccal side of the maxillary supporting portion and the mandibular supporting portion respectively and are arranged correspondingly, and the two ends of the third auxiliary positioning member are respectively connected to the maxillary positioning member and the mandibular positioning member, and at least one end of the third auxiliary positioning member is detachably connected to the maxillary positioning member or the mandibular positioning member through a concave-convex matching structure.

9. The composite dental model according to claim 8, characterized in that: The third auxiliary positioning member is in a columnar structure as a whole, and the columnar structure is an arc column structure or a straight rod structure.

10. The composite dental model according to claim 8, characterized in that: Both ends of the third auxiliary positioning member are detachably connected to the upper jaw positioning member and the lower jaw positioning member via a concave-convex matching structure.

11. The composite dental model according to claim 10, characterized in that: The upper jaw positioning member and / or the lower jaw positioning member are provided with a plurality of mounting portions spaced apart along the extension direction thereof and on the surface facing the opposite jaw positioning member, which can be used to mount the third auxiliary positioning member respectively, and the mounting portions are protrusion structures or groove structures.

12. The composite dental model according to claim 11, characterized in that: When the mounting portion is a groove structure, different groove structures have different radial depths.

13. The composite dental model according to claim 10, characterized in that: The composite dental-jaw model comprises a plurality of third auxiliary positioning members of different heights, and the third auxiliary positioning members of different heights can position the relative positions of the upper and lower jaws of the composite dental-jaw model to positions corresponding to different jaw heights of the patient.

14. The composite dental model according to claim 1, characterized in that: The maxillary positioning member and the maxillary supporting portion are detachably connected via a concave-convex matching structure, and / or the mandibular positioning member and the mandibular supporting portion are detachably connected via a concave-convex matching structure.

15. The composite dental model according to claim 14, characterized in that: The composite dental-jaw model includes multiple groups of different positioning components, and different maxillary positioning pieces and / or mandibular positioning pieces are respectively connected to the same jaw support part at different points; or different maxillary positioning pieces and / or mandibular positioning pieces have different lengths; so as to position the relative positions of the upper and lower jaws of the composite dental-jaw model to positions corresponding to different target jaw positions of the patient.

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