Complete denture generation method, device and equipment and storage medium

Abstract

The invention discloses a complete denture generation method, device and equipment and a storage medium. The complete denture generation method comprises the following steps: acquiring a plurality of tooth feature points; determining a target false tooth model closest to the current patient in a false tooth model library; and determining an upper and lower jaw anterior tooth occlusion relationship of the target false tooth model. Determining the occlusal relationship between upper and lower jaw posterior teeth of the target false tooth model; determining an upper jaw tooth arrangement termination line and a lower jaw tooth arrangement termination line of the target false tooth model; and based on the adjustment information, finely adjusting the occlusion relationship between the upper and lower jaw anterior teeth, the occlusion relationship between the upper and lower jaw posterior teeth, the upper jaw tooth arrangement termination line and the lower jaw tooth arrangement termination line, and determining the final complete denture. Therefore, a target denture model closest to the anterior tooth arrangement information of the current patient is determined in a denture model library, and the target denture model is further adjusted based on the anterior tooth occlusion relation between the upper jaw and the lower jaw, the posterior tooth occlusion relation, the upper jaw tooth arrangement termination line and the lower jaw tooth arrangement termination line of the current target denture model, so that a final complete denture is obtained.

Description

Technical Field

[0001] The present application relates to the technical field of complete denture manufacturing, and more specifically, to a complete denture generation method, device, equipment and storage medium. Background Art

[0002] Due to physiological degeneration or disease, many patients have lost a large number of teeth and need to have full dentures made to restore the patient's occlusion and meet their normal life needs.

[0003] In the related art, the operator usually performs tooth arrangement according to his / her work experience and the actual situation of the patient. However, due to the limitation of the operator's work experience, the process threshold of traditional full dentures is high and the work efficiency is low. Summary of the invention

[0004] In view of the above problems, the present application proposes a method, device, equipment and storage medium for generating full dentures, which can effectively improve the efficiency of tooth arrangement operations and are not limited by the operator's work experience.

[0005] In a first aspect, an embodiment of the present application provides a method for generating a full denture, the method comprising: obtaining a plurality of tooth feature points for reflecting the tooth arrangement information of the current patient; determining a target denture model that is closest to the anterior tooth arrangement information of the current patient in a denture model library including a plurality of preset denture models; wherein any preset denture model comprises a plurality of tooth calibration points for reflecting the tooth arrangement information of the current preset denture model; the target denture model is a preset denture model having the smallest difference between a target angle of a first polygonal figure formed by a plurality of tooth calibration points corresponding to the plurality of preset denture models and a target angle of a second polygonal figure formed by a plurality of tooth feature points; determining the occlusal relationship of the upper and lower anterior teeth of the target denture model according to the angle formed by the line between the labial restriction point and the mandibular vestibule groove point of the target denture model and the occlusal plane; the labial restriction point and the mandibular vestibule groove point are determined by the plurality of tooth calibration points of the target denture model; the occlusal plane is a plane determined by the plurality of tooth calibration points of the target denture model; The occlusal relationship of the upper and lower posterior teeth of the target denture model is determined according to the angle formed by the line between the maxillary node and the mandibular molar posterior pad point of the target denture model and the occlusal plane; the maxillary node and the mandibular molar posterior pad point are the projection points of the target calibration points of multiple tooth calibration points of the target denture model on the maxilla and mandible of the target denture model respectively; the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line of the target denture model are determined according to the angles between the maxillary tooth arrangement line and the mandibular tooth arrangement line of the target denture model and the occlusal plane respectively; the maxillary tooth arrangement line and the mandibular tooth arrangement line are determined according to the projection points of multiple tooth calibration points of the target denture model on the maxilla and mandible of the target denture model respectively; based on the adjustment information input by the user, the occlusal relationship of the upper and lower anterior teeth, the occlusal relationship of the upper and lower posterior teeth, the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line are fine-tuned to determine the final full denture.

[0006] In a second aspect, an embodiment of the present application further provides a full denture generation device, the full denture generation device comprising: an acquisition module for acquiring a plurality of tooth feature points for reflecting the current patient's tooth arrangement information; a first execution module for determining a target denture model that is closest to the current patient's anterior tooth arrangement information in a denture model library comprising a plurality of preset denture models; wherein any preset denture model comprises a plurality of tooth calibration points for reflecting the tooth arrangement information of the current preset denture model; the target denture model is a preset denture model having the smallest difference between a target angle of a first polygonal figure formed by a plurality of tooth calibration points corresponding to the plurality of preset denture models and a target angle of a second polygonal figure formed by a plurality of tooth feature points; a second execution module for determining the occlusal relationship of the upper and lower jaw anterior teeth of the target denture model according to the angle formed by the line between the labial restriction point and the mandibular vestibule groove point of the target denture model and the occlusal plane; the labial restriction point and the mandibular vestibule groove point are determined by a plurality of tooth calibration points of the target denture model; the occlusal plane is a plane determined by a plurality of tooth calibration points of the target denture model; The third execution module is used to determine the occlusal relationship of the upper and lower mandibular posterior teeth of the target denture model according to the angle formed by the line between the maxillary node and the mandibular posterior molar pad point of the target denture model and the occlusal plane; the maxillary node and the mandibular posterior molar pad point are the projection points of the target calibration points of multiple tooth calibration points of the target denture model on the maxilla and mandible of the target denture model respectively; the fourth execution module is used to determine the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line of the target denture model according to the angles between the maxillary tooth arrangement line and the mandibular tooth arrangement line of the target denture model and the occlusal plane respectively; the maxillary tooth arrangement line and the mandibular tooth arrangement line are determined according to the projection points of multiple tooth calibration points of the target denture model on the maxilla and mandible of the target denture model respectively; the fifth execution module is used to fine-tune the occlusal relationship of the upper and lower mandibular anterior teeth, the occlusal relationship of the upper and lower mandibular posterior teeth, the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line based on the adjustment information input by the user to determine the final full denture.

[0007] In a third aspect, an embodiment of the present application further provides a device comprising a processor, a memory, and one or more applications; the one or more applications are stored in the memory and configured to be executed by the processor to implement the above-mentioned full denture generation method.

[0008] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, in which a program code is stored, wherein the above-mentioned full denture generation method is executed when the program code is run by a processor.

[0009] The technical solution provided by the present application, the method for generating a full denture comprises: obtaining a plurality of tooth feature points for reflecting the tooth arrangement information of the current patient; determining a target denture model that is closest to the anterior tooth arrangement information of the current patient in a denture model library including a plurality of preset denture models; wherein any preset denture model comprises a plurality of tooth calibration points for reflecting the tooth arrangement information of the current preset denture model; the target denture model is a preset denture model having the smallest difference between a target angle of a first polygonal figure formed by a plurality of tooth calibration points corresponding to the plurality of preset denture models and a target angle of a second polygonal figure formed by a plurality of tooth feature points; determining the occlusal relationship of the upper and lower anterior teeth of the target denture model according to the angle formed by the line between the labial restriction point and the mandibular vestibule groove point of the target denture model and the occlusal plane; the labial restriction point and the mandibular vestibule groove point are determined by a plurality of tooth calibration points of the target denture model; the occlusal plane is a plane determined by a plurality of tooth calibration points of the target denture model; The occlusal relationship of the upper and lower posterior teeth of the target denture model is determined according to the angle formed by the line between the maxillary node and the mandibular molar posterior pad point of the target denture model and the occlusal plane; the maxillary node and the mandibular molar posterior pad point are the projection points of the target calibration points of multiple tooth calibration points of the target denture model on the maxilla and mandible of the target denture model respectively; the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line of the target denture model are determined according to the angles between the maxillary tooth arrangement line and the mandibular tooth arrangement line of the target denture model and the occlusal plane respectively; the maxillary tooth arrangement line and the mandibular tooth arrangement line are determined according to the projection points of multiple tooth calibration points of the target denture model on the maxilla and mandible of the target denture model respectively; based on the adjustment information input by the user, the occlusal relationship of the upper and lower anterior teeth, the occlusal relationship of the upper and lower posterior teeth, the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line are fine-tuned to determine the final full denture. Thus, the target denture model closest to the current patient's anterior teeth arrangement information is determined in the denture model library, and then the upper and lower anterior teeth occlusion relationship, the posterior teeth occlusion relationship, the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line of the target denture model are determined, so that the operator can further adjust the target denture model based on the upper and lower anterior teeth occlusion relationship, the posterior teeth occlusion relationship, the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line of the current target denture model to obtain the final full denture. In this way, the operator can obtain the final full denture by making fine adjustments based on the target denture model to improve the tooth arrangement efficiency. And the above method requires less work experience of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, not all embodiments. Based on the embodiments of the present application, all other embodiments and drawings obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0011] Figure 1 A schematic flow chart of a method for generating a complete denture provided in an embodiment of the present application is shown.

[0012] Figure 2 A schematic structural diagram of a target denture model provided in an embodiment of the present application is shown.

[0013] Figure 3 A schematic structural diagram of the upper jaw of a target denture model provided in an embodiment of the present application is shown.

[0014] Figure 4 A schematic structural diagram of the upper jaw of another target denture model provided in an embodiment of the present application is shown.

[0015] Figure 5 A structural schematic diagram of the occlusal relationship of the upper and lower anterior teeth provided in an embodiment of the present application is shown.

[0016] Figure 6 A schematic diagram of the structure of the upper jaw of another target denture model provided in an embodiment of the present application is shown.

[0017] Figure 7 A schematic diagram of the structure of the upper jaw of another target denture model provided in an embodiment of the present application is shown.

[0018] Figure 8 A schematic structural diagram of the mandible of a target denture model provided in an embodiment of the present application is shown.

[0019] Fig. 9 A structural schematic diagram of the angle between a line between a labial restriction point and a mandibular vestibule groove point and an occlusal plane provided in an embodiment of the present application is shown.

[0020] Fig.10 A structural schematic diagram of the occlusal relationship of the upper and lower mandibular posterior teeth provided in an embodiment of the present application is shown.

[0021] Fig.11 A structural schematic diagram of the angle formed by a line between a maxillary node and a mandibular molar posterior pad point and an occlusal plane provided in an embodiment of the present application is shown.

[0022] Fig.12A structural schematic diagram of the angle formed by the line between the maxillary node and the mandibular molar posterior pad point and the occlusal plane provided in another embodiment of the present application is shown.

[0023] Fig.13 A schematic structural diagram of the mandible of another target denture model provided in an embodiment of the present application is shown.

[0024] Fig.14 A schematic diagram of the structure of gums and teeth of a final complete denture provided in an embodiment of the present application is shown.

[0025] Fig.15 A schematic structural diagram of a complete denture generating device provided in an embodiment of the present application is shown.

[0026] Fig.16 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application is shown.

[0027] Fig.17 A schematic diagram of the structure of a computer-readable storage medium provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limiting the present application. All other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0029] In the following description, reference is made to "some embodiments", which describes a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict. In the following description, reference is made to the term "multiple" to mean at least two.

[0030] In the following description, the terms "first\second" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0032] Due to physiological degeneration or disease, many patients have lost a large number of teeth and need to undergo full dentures to restore the patient's occlusion and meet the patient's normal life needs. In related technologies, the operator usually performs tooth arrangement operations based on work experience and the patient's actual situation. However, due to the limitations of the operator's work experience, the threshold of traditional full denture technology is relatively high. The use of digital full denture technology for tooth arrangement operations can reduce the requirements for the operator's work experience and effectively improve work efficiency.

[0033] Digital full denture processes include one-piece processes and split processes. Among them, the one-piece process uses corrugated discs or layered discs. However, corrugated discs take a lot of time to arrange the position of teeth due to the high technical difficulty. Layered discs have safety risks and unstable effects due to the gum re-staining technology. As the teeth are used for a long time, chemical reactions (for example, gum color change) will occur, which is not conducive to the patient's oral health. The split process is a process technology in which teeth and gums are processed in batches using digital equipment and then assembled. However, the adhesive used in the split process will lose tooth accuracy. Therefore, corrugated discs are more commonly used. However, since corrugated discs take a lot of time to arrange the position of teeth, the tooth arrangement efficiency is low.

[0034] In order to improve the above-mentioned problems, the present application provides a method, device, equipment and storage medium for generating a full denture, the method comprising: obtaining a plurality of tooth feature points for reflecting the tooth arrangement information of the current patient; determining a target denture model that is closest to the anterior tooth arrangement information of the current patient in a denture model library including a plurality of preset denture models; wherein any preset denture model comprises a plurality of tooth calibration points for reflecting the tooth arrangement information of the current preset denture model; the target denture model is a preset denture model having the smallest difference between a target angle of a first polygonal figure formed by a plurality of tooth calibration points corresponding to the plurality of preset denture models and a target angle of a second polygonal figure formed by a plurality of tooth feature points; determining the occlusal relationship of the upper and lower anterior teeth of the target denture model according to the angle formed by the line between the labial restriction point and the mandibular vestibule groove point of the target denture model and the occlusal plane; the labial restriction point and the mandibular vestibule groove point are determined by a plurality of tooth calibration points of the target denture model; the occlusal plane is a plane determined by a plurality of tooth calibration points of the target denture model; The occlusal relationship of the upper and lower posterior teeth of the target denture model is determined according to the angle formed by the line between the maxillary node and the mandibular molar posterior pad point of the target denture model and the occlusal plane; the maxillary node and the mandibular molar posterior pad point are the projection points of the target calibration points of multiple tooth calibration points of the target denture model on the maxilla and mandible of the target denture model respectively; the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line of the target denture model are determined according to the angles between the maxillary tooth arrangement line and the mandibular tooth arrangement line of the target denture model and the occlusal plane respectively; the maxillary tooth arrangement line and the mandibular tooth arrangement line are determined according to the projection points of multiple tooth calibration points of the target denture model on the maxilla and mandible of the target denture model respectively; based on the adjustment information input by the user, the occlusal relationship of the upper and lower anterior teeth, the occlusal relationship of the upper and lower posterior teeth, the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line are fine-tuned to determine the final full denture.

[0035] Thus, the target denture model closest to the current patient's anterior teeth arrangement information is determined in the denture model library, and then the upper and lower anterior teeth occlusion relationship, the posterior teeth occlusion relationship, the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line of the target denture model are determined, so that the operator can further adjust the target denture model based on the upper and lower anterior teeth occlusion relationship, the posterior teeth occlusion relationship, the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line of the current target denture model to obtain the final full denture. In this way, the operator can obtain the final full denture by making fine adjustments based on the target denture model to improve the tooth arrangement efficiency. And the above method requires less work experience of the operator.

[0036] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0037] See also Figure 1 , Figure 1 FIG. 1 is a flow chart of a method for generating a complete denture according to an embodiment of the present application. Figure 1 As shown, the complete denture generation method may include steps 110 to 150.

[0038] In step 110, a plurality of tooth feature points reflecting the current patient's tooth arrangement information is acquired.

[0039] In some embodiments, the plurality of tooth feature points include an incisor papilla point, a left canine point, and a right canine point.

[0040] For example, see Figure 2 , Figure 2 FIG. 1 is a schematic diagram showing the structure of a target denture model provided in an embodiment of the present application. Figure 2 As shown, the multiple tooth feature points include incisor papilla point A, left canine point B and right canine point b.

[0041] In some embodiments, the plurality of tooth feature points include an incisor papilla point, a left canine point, a right canine point, a left tubercle feature point, and a right tubercle feature point (the left tubercle feature point is the left tubercle, and the right tubercle feature point is the right tubercle).

[0042] For example, please refer to Figure 2 , multiple tooth feature points include incisor papilla point A, left canine point B, right canine point b, left knot point C and right knot point c.

[0043] The operator uses professional knowledge to mark the positions of multiple tooth feature points corresponding to the current patient's tooth arrangement information. For example, the operator uses professional knowledge to mark the incisor mastoid point, left canine point, right canine point, left knot point, and right knot point used to reflect the current patient's tooth arrangement information.

[0044] After the operator determines the specific position information of the incisor mastoid point, left canine point, right canine point, left knot point and right knot point, which are used to reflect the current patient's tooth arrangement information, the specific position information of the incisor mastoid point, left canine point, right canine point, left knot point and right knot point is input into the denture model library, so that in the subsequent steps, the preset denture model in the denture model library that is closest to the current patient's tooth arrangement information is determined according to the multiple tooth feature points used to reflect the current patient's tooth arrangement information, so that the final full-mouth denture can be obtained by fine-tuning the preset denture model, which greatly improves the efficiency of tooth arrangement and does not require the operator to have more work experience, that is, the technical requirements for the operator are relatively low. Specifically: In step 120, a target denture model that is closest to the anterior teeth arrangement information of the current patient is determined in a denture model library including a plurality of preset denture models.

[0045] The multiple preset denture models are multiple denture models that are obtained by the operator using the movable denture template to sort in advance, and the multiple pre-sorted denture models are digitized by software to obtain a denture model library. In other words, the denture model library contains multiple pre-sorted denture models.

[0046] Any preset denture model includes a plurality of tooth calibration points for reflecting the tooth arrangement information of the current preset denture model. In some embodiments, the plurality of tooth calibration points include an incisor mastoid calibration point, a left canine center point, and a right canine center point. In some embodiments, the plurality of tooth calibration points also include a left knot point and a right knot point.

[0047] For example, see Figure 3 , Figure 3 FIG. 1 is a schematic diagram showing the structure of the upper jaw of a target denture model provided in an embodiment of the present application. Figure 3 As shown, the multiple tooth marking points include an incisor papilla marking point 1, a left canine center point 2, and a right canine center point 3.

[0048] For another example, please refer to Figure 3 The multiple tooth marking points include incisor mastoid marking point 1, left canine center point 2, right canine center point 3, left joint point 4 and right joint point 5.

[0049] That is to say, when each preset denture model is set, the incisor mastoid calibration point, the left canine center point and the right canine center point corresponding to each preset denture model will be determined first. Alternatively, when each preset denture model is set, the incisor mastoid calibration point, the left canine center point, the right canine center point, the left node point and the right node point corresponding to each preset denture model will be determined first.

[0050] By determining multiple tooth calibration points for reflecting the tooth arrangement information of the current preset denture model, the tooth arrangement information of the current preset denture model can be determined according to the multiple tooth calibration points. Then, the target denture model closest to the current patient's front teeth arrangement information can be determined from multiple preset denture models in the denture model library.

[0051] The target denture model is a preset denture model having the smallest difference between the target angle of a first polygonal figure formed by a plurality of tooth calibration points corresponding to the plurality of preset denture models and the target angle of a second polygonal figure formed by a plurality of tooth feature points.

[0052] In some embodiments, the first polygonal figure is a triangle formed by connecting the incisor papilla calibration point, the left canine center point, and the right canine center point corresponding to the current preset denture model.

[0053] In some embodiments, the second polygonal figure is a triangle formed by connecting the incisor mastoid calibration point, the left canine point, and the right canine point corresponding to the current patient one by one.

[0054] By respectively determining the first polygonal figure corresponding to each preset denture model in the denture model library, and then determining the differences between the target angles in the first polygonal figure corresponding to each preset denture model and the target angles of the second polygonal figure, the preset denture model corresponding to the first polygonal figure with the smallest difference is determined as the target denture model.

[0055] Furthermore, the step of determining a target denture model that is closest to the anterior teeth arrangement information of the current patient in a denture model library including a plurality of preset denture models may include the following steps: (1) Determine first polygonal figures corresponding to a plurality of preset denture models. (2) Connect the incisor mastoid point, left canine point, and right canine point one by one to determine the second polygonal figure.

[0056] (3) Determine the difference between the target acute angle of the first polygonal figure and the target acute angle of the second polygonal figure corresponding to each of the plurality of preset denture models.

[0057] (4) The preset denture model with the smallest difference is determined as the target denture model.

[0058] The triangles formed by connecting the incisor mastoid calibration points, the left canine center points and the right canine center points corresponding to each preset denture model in the denture model library are determined to correspond to the first polygonal figures of each preset denture model in the denture model library.

[0059] The incisor mastoid points, left canine points and right canine points reflecting the current patient's tooth arrangement information are connected one by one to determine a second polygonal figure. The difference between the target acute angle of the first polygonal figure and the target acute angle of the second polygonal figure corresponding to each preset denture model is determined, and the preset denture model corresponding to the minimum difference is determined as the target denture model.

[0060] For example, see Figure 4 , Figure 4 FIG. 2 shows a schematic diagram of the structure of the upper jaw of another target denture model provided in an embodiment of the present application. Figure 4As shown, the first polygonal figure is a triangle formed by connecting the incisor mastoid calibration point 1, the left canine center point 2 and the right canine center point 3 one by one; the second polygonal figure is a triangle formed by connecting the incisor mastoid point A, the left canine point B and the right canine point b one by one. The target acute angle ∠123 of the first polygonal figure; the target acute angle ∠ABC of the second polygonal figure. Determine the difference between the target acute angle ∠123 and the target acute angle ∠ABC, and then according to the size of the difference, determine the similarity between the current preset denture model corresponding to the current first polygonal figure and the tooth arrangement information of the current patient.

[0061] When the difference between the target acute angle of the first polygonal figure and the target acute angle of the second polygonal figure is larger, it means that the similarity between the current preset denture model corresponding to the current first polygonal figure and the tooth arrangement information of the current patient is lower. When the difference between the target acute angle of the first polygonal figure and the target acute angle of the second polygonal figure is smaller, it means that the similarity between the current preset denture model corresponding to the current first polygonal figure and the tooth arrangement information of the current patient is higher.

[0062] In some embodiments, when the difference between the target acute angle of the first polygonal figure and the target acute angle of the second polygonal figure is within 5°, the preset denture models corresponding to the first polygonal figures can be considered to have a high similarity with the tooth arrangement information of the current patient. Any of these preset denture models can be used as a basis to further adjust the upper and lower anterior teeth occlusion relationship, the posterior teeth occlusion relationship, the maxillary tooth arrangement termination line, and the mandibular tooth arrangement termination line of the preset denture model to the target denture model to obtain the final full denture.

[0063] In some embodiments, the difference between the target acute angle of the first polygonal figure and the target acute angle of the second polygonal figure respectively corresponding to multiple preset denture models in the denture model library is determined, and the preset denture model corresponding to the first polygonal figure with the smallest difference is determined as the target denture model.

[0064] After determining the target denture model that is closest to the current patient's anterior teeth arrangement information from multiple preset denture models in the denture model library, fine-tune the target denture model to determine the final full denture. Specifically: In step 130, the occlusal relationship between the maxillary and mandibular anterior teeth of the target denture model is determined according to the angle formed by the line between the labial limit point and the mandibular vestibule groove point of the target denture model and the occlusal plane.

[0065] The occlusal plane is the plane determined by multiple tooth reference points of the target denture model. Figure 2, the occlusal plane is formed by the incisor mastoid calibration point A, the left canine point B, the right canine point b, the left node C and the right node c. In other words, the occlusal plane includes the incisor mastoid calibration point A, the left canine point B, the right canine point b, the left node C and the right node c.

[0066] The labial restriction point and the mandibular vestibule groove point are determined by multiple tooth calibration points of the target denture model. The labial restriction point is used to limit the arrangement position of the maxillary anterior teeth of the target denture model. The mandibular vestibule groove point is used as the center of gravity of the mandibular anterior teeth of the target denture model.

[0067] The occlusal relationship of the upper and lower anterior teeth can include the antagonistic jaw, standard jaw and deep overbite. For details, please refer to Figure 5 , Figure 5 The schematic diagram of the structure of the occlusal relationship of the upper and lower front teeth provided in the embodiment of the present application is shown. Figure 5 As shown, Figure 5 The 5A in it is the opposing jaw; Figure 5 5B in the figure is the standard jaw; Figure 5 5C in the chart is a deep overbite. Among them, the angle between the maxillary anterior teeth and the mandibular anterior teeth is between 0° and 15° for an antagonistic jaw, between 15° and 25° for a standard jaw, and between more than 25° for a deep overbite.

[0068] The angle formed by the line between the labial limit point and the mandibular vestibule groove point of the target denture model and the occlusal plane can be used to determine the occlusal relationship of the maxillary and mandibular anterior teeth of the target denture model, that is, to determine the specific value of the angle formed by the line between the labial limit point and the mandibular vestibule groove point of the target denture model and the occlusal plane, and whether the occlusal relationship of the maxillary and mandibular anterior teeth of the target denture model is an opposing jaw, a standard jaw or a deep overbite.

[0069] In the subsequent steps, after the operator obtains the specific value of the angle formed by the line between the labial limit point and the mandibular vestibule groove point of the target denture model and the occlusal plane, and the occlusal relationship of the maxillary and mandibular anterior teeth of the target denture model is an opposing jaw, a standard jaw or a deep overbite, the operator can further adjust the specific value of the angle formed by the line between the labial limit point and the mandibular vestibule groove point of the target denture model and the occlusal plane according to the actual situation of the current patient, so as to make the occlusal relationship of the maxillary and mandibular anterior teeth of the target denture model more suitable for the current patient.

[0070] Specifically, in some embodiments, the method for generating a complete denture may further include the following steps: (1) Determine the midline of the first polygonal figure corresponding to the target denture model.

[0071] (2) The point where the midline is on the projection line of the mandible of the target denture model and is at a preset distance from the incisor mastoid calibration point is determined as the labial limit point.

[0072] (3) The point where the midline on the maxillary projection line of the target denture model is the longest vertically from the incisor mastoid calibration point is determined as the mandibular vestibule groove point.

[0073] See also Figure 6 , Figure 6 FIG. 2 shows a schematic diagram of the upper jaw structure of another target denture model provided in an embodiment of the present application. Figure 6 As shown, the midline of the first polygonal figure is determined according to the line between the midpoint between the left canine point 2 and the right canine point 3 and the incisor mastoid calibration point 1. The projection line of the midline on the upper jaw of the target denture model is determined, and the projection line of the midline on the lower jaw of the target denture model is determined, with the incisor mastoid calibration point 1 as the initial point, and the point with a preset distance outward is determined as the labial limit point.

[0074] In some embodiments, the preset value may be between 7 mm and 10 mm.

[0075] In some embodiments, the projection points of multiple tooth calibration points on the upper jaw of the target denture model are determined to determine the corresponding positions of the multiple tooth calibration points on the upper jaw of the target denture model. For example, the incisor mastoid calibration point, the left canine point and the right canine point are projected to the upper jaw of the target denture model to determine the corresponding positions of the incisor mastoid calibration point, the left canine point and the right canine point on the upper jaw of the target denture model. For another example, the incisor mastoid calibration point, the left canine point, the right canine point, the left knot point and the right knot point are projected to the upper jaw of the target denture model to determine the corresponding positions of the incisor mastoid calibration point, the left canine point, the right canine point, the left knot point and the right knot point on the upper jaw of the target denture model.

[0076] After determining the corresponding positions of the incisor mastoid calibration point, the left canine point and the right canine point in the upper jaw of the target denture model, the midpoint between the corresponding position of the left canine point in the upper jaw of the target denture model and the corresponding position of the right canine point in the upper jaw of the target denture model is determined, and the line between the midpoint and the corresponding position of the incisor mastoid calibration point in the upper jaw of the target denture model is determined as the midline. The point on the midline with the corresponding position of the incisor mastoid calibration point in the upper jaw of the target denture model as the initial point and the point at a preset distance outward is determined as the labial limit point.

[0077] In some embodiments, see Figure 7 , Figure 7 FIG. 2 shows a schematic diagram of the upper jaw structure of another target denture model provided in an embodiment of the present application. Figure 7As shown, the incisor mastoid calibration point is at projection point 1 of the maxillary of the target denture model, the left canine center point is at projection point 2 of the maxillary of the target denture model, the right canine center point is at projection point 3 of the maxillary of the target denture model, the left knot point is at projection point 4 of the maxillary of the target denture model, and the right knot point is at projection point 5 of the maxillary of the target denture model. With projection point 1 as the initial point, the point at the preset value outward is determined as the labial restriction line 8 (used to limit the maxillary anterior teeth arrangement position of the target denture model), and the point on the labial restriction line 8 closest to projection point 1 is determined as the labial restriction point 7.

[0078] Further, the midline of the first polygonal figure is determined according to the line between the midpoint between the center point of the left canine and the center point of the right canine and the incisor mastoid calibration point. The projection line of the midline on the upper jaw of the target denture model is determined, and the projection line of the midline on the lower jaw of the target denture model is determined, and the point with the largest vertical distance from the incisor mastoid calibration point is determined as the mandibular vestibule groove point.

[0079] See also Figure 8 , Figure 8 FIG. 1 is a schematic diagram showing the structure of the mandible of a target denture model provided in an embodiment of the present application. Figure 8 As shown, the incisor mastoid calibration point is at projection point 1 of the mandible of the target denture model, the left canine center point is at projection point 2 of the mandible of the target denture model, the right canine center point is at projection point 3 of the mandible of the target denture model, the left node point is at projection point 4 of the mandible of the target denture model, and the right node point is at projection point 5 of the mandible of the target denture model. The midpoint between projection point 2 and projection point 3 is determined, and the guide line 9 is determined based on the line between the midpoint and projection point 1. Taking projection point 1 as the starting point, along the direction of guide line 9, the point at which the mandible of the target denture model is the largest in the vertical direction from the guide line 9 is determined to determine the mandibular vestibule groove point 10.

[0080] See also Fig. 9 , Fig. 9 The schematic diagram of the structure of the angle between the line between the labial restriction point and the mandibular vestibule groove point and the occlusal plane provided by an embodiment of the present application is shown. Fig. 9 As shown, according to the angle formed by the line between the labial restriction point 7 and the mandibular vestibule groove point 10 and the occlusal plane, the occlusal relationship of the upper and lower jaw anterior teeth of the target denture model is determined to be an opposing jaw, a standard jaw or a deep overbite. In the subsequent steps, the operator adjusts the specific value of the angle formed by the line between the labial restriction point 7 and the mandibular vestibule groove point 10 and the occlusal plane according to the actual situation of the current patient.

[0081] For example, when the angle formed by the line between the labial restriction point and the mandibular vestibule groove point and the occlusal plane is between 0° and 15°, the angle formed by the line between the labial restriction point and the mandibular vestibule groove point and the occlusal plane can be fine-tuned, or the angle formed by the line between the labial restriction point and the mandibular vestibule groove point and the occlusal plane can be adjusted to between 15° and 25°.

[0082] For another example, when the angle formed by the line between the labial limit point and the mandibular vestibule groove point and the occlusal plane is greater than 25°, the angle formed by the line between the labial limit point and the mandibular vestibule groove point and the occlusal plane can be adjusted to between 15° and 25°.

[0083] By determining the occlusal relationship of the upper and lower anterior teeth of the target denture model, the occlusal relationship of the upper and lower anterior teeth of the target denture model can be adjusted to make the target denture model more suitable for the current patient. In addition, it is also necessary to determine the occlusal relationship of the upper and lower posterior teeth of the target denture model to adjust the occlusal relationship of the upper and lower posterior teeth of the target denture model, so that the occlusal relationship of the upper and lower anterior teeth of the target denture model and the occlusal relationship of the upper and lower posterior teeth of the target denture model can be coordinated with each other to make the target denture model more suitable for the current patient. Specifically: In step 140, the occlusal relationship between the maxillary and mandibular posterior teeth of the target denture model is determined according to the angle formed by the line between the maxillary node and the mandibular molar posterior pad point of the target denture model and the occlusal plane.

[0084] The maxillary node and the mandibular molar back pad are projection points of the target calibration points of the multiple tooth calibration points of the target denture model on the maxilla and mandible of the target denture model, respectively. The target calibration points may include a left node and a right node.

[0085] That is, the left knot node and the right knot node are projected to the maxilla and the mandible of the target denture model respectively to determine the corresponding positions of the left knot node and the right knot node in the maxilla of the target denture model to determine the maxillary knot node. Also, the corresponding positions of the left knot node and the right knot node in the mandible of the target denture model to determine the mandibular molar back pad point.

[0086] The maxillary node includes the maxillary left node and the maxillary right node, and the mandibular retromolar pad includes the mandibular left retromolar pad and the mandibular right retromolar pad. Specifically, in some embodiments, the complete denture generation method may further include the following steps: (1) The projection points of the left and right nodes on the maxilla of the target denture model are determined as the maxillary node.

[0087] (2) The projection points of the left and right knot nodes on the maxilla of the target denture model are determined as the mandibular molar posterior pad points.

[0088] The occlusal relationship of the upper and lower jaws can include normal jaw, lingual central jaw and crossbite. For details, please refer to Fig.10 , Fig.10 The schematic diagram of the structure of the occlusal relationship of the upper and lower posterior teeth provided in the embodiment of the present application is shown. Fig.10 As shown, Fig.10 10A in the figure is a normal jaw; Fig.10 10B in the figure is lingually focused jaw; Fig.10 10C in the figure is an underbite. The normal jaw is the target denture model where the angle between the maxillary posterior teeth and the mandibular posterior teeth is in the range of [85°, +∞]; the lingually focused jaw is the target denture model where the angle between the maxillary posterior teeth and the mandibular posterior teeth is in the range of 75° to 85°; the underbite is the target denture model where the angle between the maxillary posterior teeth and the mandibular posterior teeth is in the range of [0,75°].

[0089] By determining the current occlusal relationship of the upper and lower posterior teeth of the target denture model, in the subsequent steps, the operator can adjust the specific value of the angle formed by the line between the maxillary node and the mandibular molar posterior pad point and the occlusal plane to adjust the occlusal relationship of the upper and lower posterior teeth. For example, the current occlusal relationship of the upper and lower posterior teeth of the target denture model is lingual centralized jaw, and the current occlusal relationship of the upper and lower posterior teeth of the target denture model can be adjusted to a normal jaw by adjusting the specific value of the angle formed by the line between the maxillary node and the mandibular molar posterior pad point and the occlusal plane.

[0090] Optionally, in some embodiments, the step of determining the occlusal relationship between the upper and lower mandibular posterior teeth of the target denture model according to the angle formed by the line between the maxillary node and the posterior pad point of the mandibular molar of the target denture model and the occlusal plane may include the step of determining the occlusal relationship between the upper and lower mandibular posterior teeth according to the angle formed by the line between the maxillary left node and the posterior pad point of the mandibular left molar and the occlusal plane.

[0091] For example, see Fig.11 , Fig.11 The schematic diagram of the structure of the angle formed by the line between the maxillary node and the mandibular molar back pad point and the occlusal plane provided by the embodiment of the present application is shown. Fig.11 As shown, the projection point of the left node on the maxillary of the target denture model is determined as the maxillary left node 11, and the projection point of the left node on the mandibular of the target denture model is determined as the mandibular left molar posterior pad point 12. Then, according to the angle between the line between the maxillary left node 11 and the mandibular left molar posterior pad point 12 and the occlusal plane, the occlusal relationship of the upper and lower posterior teeth is determined.

[0092] Optionally, in some embodiments, the step of determining the occlusal relationship between the upper and lower mandibular posterior teeth of the target denture model according to the angle formed by the line between the maxillary node and the posterior pad point of the mandibular molar of the target denture model and the occlusal plane may include the step of determining the occlusal relationship between the upper and lower mandibular posterior teeth according to the angle formed by the line between the maxillary right node and the posterior pad point of the mandibular right molar and the occlusal plane.

[0093] For example, see Fig.12 , Fig.12 FIG. 2 is a schematic diagram showing the angle formed by the line connecting the maxillary node and the mandibular molar back pad point and the occlusal plane provided in another embodiment of the present application. Fig.12 As shown, the projection point of the right node on the maxillary of the target denture model is determined as the maxillary right node 13, and the projection point of the right node on the mandibular of the target denture model is determined as the mandibular right molar posterior pad point 14. The angle between the line between the maxillary right node 13 and the mandibular right molar posterior pad point 14 and the occlusal plane is used to determine the occlusal relationship between the upper and lower posterior teeth.

[0094] The angle formed by the line between the maxillary left node and the posterior pad point of the mandibular left molar and the occlusal plane is used to determine whether the occlusal relationship of the upper and lower mandibular posterior teeth is a normal jaw, lingually concentrated jaw or crossbite. Alternatively, the angle formed by the line between the maxillary right node and the posterior pad point of the mandibular right molar and the occlusal plane is used to determine whether the occlusal relationship of the upper and lower mandibular posterior teeth is a normal jaw, lingually concentrated jaw or crossbite. In subsequent steps, the operator can fine-tune the specific value of the angle formed by the line between the maxillary right node and the posterior pad point of the mandibular right molar and the occlusal plane according to the actual situation of the current patient. The operator can also change the occlusal relationship of the upper and lower mandibular posterior teeth corresponding to the current target denture model by adjusting the specific value of the angle formed by the line between the maxillary right node and the posterior pad point of the mandibular right molar and the occlusal plane.

[0095] For example, the occlusal relationship of the upper and lower mandibular posterior teeth corresponding to the target denture model is a lingual centralized jaw. By adjusting the specific value of the angle formed by the line between the maxillary right node and the mandibular right molar posterior pad point and the occlusal plane, the occlusal relationship of the upper and lower mandibular posterior teeth corresponding to the target denture model can be made a normal jaw.

[0096] The operator determines the occlusal relationship of the upper and lower anterior teeth and the occlusal relationship of the upper and lower posterior teeth corresponding to the target denture model and, based on actual conditions, fine-tunes the occlusal relationship of the upper and lower anterior teeth and the occlusal relationship of the upper and lower posterior teeth corresponding to the target denture model to make the target denture model closer to the actual situation of the current patient.

[0097] Through the above scheme, the arrangement of the front teeth and back teeth of the current patient can be determined. In addition, it is also necessary to determine the position of the last tooth of the target denture model, that is, to determine the tooth arrangement termination line of the target denture model, so as to avoid instability of the teeth in the target denture model. For example, when the position of the last tooth of the target denture model is too close to the direction of the incisors, if the current patient uses the target denture model, the back teeth may easily tilt. For another example, when the position of the last tooth of the target denture model is too far away from the direction of the incisors, if the current patient uses the target denture model, the front teeth may easily tilt.

[0098] Therefore, it is necessary to determine a more appropriate tooth arrangement termination line for the target denture model to avoid the instability of the front and rear teeth of the target denture model. Specifically: In step 150, the maxillary tooth row termination line and the mandibular tooth row termination line of the target denture model are determined according to the angles between the maxillary tooth row line and the mandibular tooth row line of the target denture model and the occlusal plane, respectively.

[0099] The maxillary tooth line and the mandibular tooth line are determined according to the projection points of multiple tooth calibration points of the target denture model on the maxillary and mandibular projection points of the target denture model. For example, the incisor mastoid calibration point, the left canine center point, the right canine center point, the left knot point and the right knot point are projected onto the maxillary of the target denture model to obtain the corresponding positions of the incisor mastoid calibration point, the left canine center point, the right canine center point, the left knot point and the right knot point on the maxillary of the target denture model, and the maxillary tooth line is determined according to these corresponding positions of the maxillary.

[0100] For another example, the incisor mastoid calibration point, the left canine center point, the right canine center point, the left knot point and the right knot point are respectively projected onto the mandible of the target denture model to obtain the corresponding positions of the incisor mastoid calibration point, the left canine center point, the right canine center point, the left knot point and the right knot point on the mandible of the target denture model, and the mandibular dental line is determined based on these corresponding positions of the mandible.

[0101] The teeth of the target denture model in the upper jaw are arranged according to the maxillary tooth line. The teeth of the target denture model in the lower jaw are arranged according to the lower jaw tooth line. Specifically, in some embodiments, the full denture generation method may further include the following steps: (1) Determine that a plurality of tooth calibration points of the target denture model are located at a plurality of first projection points of the upper jaw of the target denture model.

[0102] (2) Determine multiple highest points between any two of the multiple first projection points.

[0103] (3) Connect multiple first projection points and multiple highest points between each pair of first projection points in sequence to determine the maxillary dental line.

[0104] The plurality of first projection points include the corresponding positions of the incisor mastoid calibration point, the left canine center point, the right canine center point, the left knot point and the right knot point in the upper jaw of the target denture model. That is, the incisor mastoid calibration point, the left canine center point, the right canine center point, the left knot point and the right knot point are projected to the upper jaw of the target denture model to obtain the corresponding positions of the incisor mastoid calibration point, the left canine center point, the right canine center point, the left knot point and the right knot point in the upper jaw of the target denture model, thereby obtaining the plurality of first projection points.

[0105] Exemplarily, the multiple first projection points include the incisor mastoid calibration point at the corresponding position A in the upper jaw of the target denture model and the left canine center point at the corresponding position B in the upper jaw of the target denture model, and multiple highest points between position A and position B in the upper jaw are determined. Position A, the multiple highest points and position B are connected in sequence to determine the dental line between position A and position B in the upper jaw.

[0106] It is understandable that the positions of the multiple highest points are irregular. For example, the curve formed by sequentially connecting position A, multiple highest points and position B may be irregular, for example, the curve formed by sequentially connecting position A, multiple highest points and position B has multiple inflection points.

[0107] Obviously, if the teeth are arranged according to the irregular maxillary tooth arrangement line, the teeth arrangement will be unsightly and difficult. Therefore, in order to make the curve formed by connecting position A, multiple highest points and position B in sequence smoother, the points with lower density among the multiple highest points can be discarded and / or the points far from the previous target highest point can be discarded.

[0108] For example, the highest point closest to position A is determined as the target highest point, and the highest point closest to the current target highest point is determined as the next target highest point, and so on, to screen out all target highest points between position A and position B, and connect position A, all target highest points and position B in sequence to determine the dental line between position A and position B in the maxillary dental line.

[0109] The above method can be used to determine the tooth line between different adjacent first projection points, thereby determining the maxillary tooth line of the entire target denture model.

[0110] In some embodiments, the method for generating a complete denture may further include the following steps: (1) Determine that a plurality of tooth calibration points of the target denture model are respectively located at a plurality of second projection points of the mandible of the target denture model.

[0111] (2) Based on a plurality of highest points between any two of the second projection points.

[0112] (3) Connect the multiple second projection points and the multiple highest points between the second projection points in sequence to determine the mandibular dental line.

[0113] For the convenience and brevity of description, reference may be made to the corresponding description in the above embodiments, which will not be repeated here.

[0114] Further, in some embodiments, the step of determining the maxillary tooth row termination line and the mandibular tooth row termination line of the target denture model according to the angles between the maxillary tooth row line and the mandibular tooth row line of the target denture model and the occlusal plane respectively may include the following steps: (1) Determine multiple first reference planes that are parallel to the occlusal plane and intersect with different points on the maxillary dental line.

[0115] (2) Determine the angles between the multiple first reference planes and the maxillary dental line.

[0116] (3) A perpendicular line of the intersection between the target first reference plane whose included angle is the first preset threshold and the maxillary dental line is determined as the maxillary dental line.

[0117] (4) Determine multiple second reference planes that are parallel to the occlusal plane and intersect with different points on the mandibular dental line.

[0118] (5) Determine the angles between the multiple second reference planes and the mandibular dental line.

[0119] (6) A perpendicular line of the intersection between the target second reference plane having an angle equal to the second preset threshold and the mandibular dental line is determined as the mandibular dental line.

[0120] According to the occlusal plane, multiple first reference planes are determined which are parallel to the occlusal plane and intersecting with the maxillary dental line or the mandibular dental line, and then the maxillary dental line or the mandibular dental line is determined according to the angles between the multiple first reference planes and the maxillary dental line or the mandibular dental line.

[0121] In some embodiments, the first reference plane corresponding to the first threshold angle between multiple first reference planes and the maxillary dental line or the mandibular dental line is determined as the target first reference plane, and then the intersection between the target first reference plane and the maxillary dental line or the mandibular dental line is determined, and the line along the vertical direction of the intersection is the maxillary dental line or the mandibular dental line.

[0122] In some embodiments, the value of the first threshold may be 22.5°. The specific value of the first threshold may be determined according to the force applied to the teeth in the target denture model.

[0123] For example, see Fig.13 , Fig.13 FIG. 2 shows a schematic diagram of the structure of the mandible of another target denture model provided in an embodiment of the present application. Fig.13 As shown, according to the occlusal plane, multiple first reference planes 16 (only two first reference planes 16 are shown in the figure) that are parallel to the occlusal plane and intersect with the mandibular dental line 15 are determined, and the angles between the multiple first reference planes 16 and the mandibular dental line 15 are determined. The angle between the multiple first reference planes 16 and the mandibular dental line 15 is determined to be the target first reference plane corresponding to the first threshold (i.e., the first reference plane 15 located at the top in the figure), and the intersection 17 between the target first reference plane and the mandibular dental line 15 is determined, and the line along the vertical direction of the intersection 17 is the mandibular dental line.

[0124] By determining the maxillary tooth line and the mandibular tooth line, when the operator adjusts the target denture model, the center of the maxillary last tooth of the target denture model cannot exceed the maxillary tooth line, and the center of the mandibular last tooth of the target denture model cannot exceed the mandibular tooth line. This is to avoid the current patient's teeth being unstable due to the force on the teeth after using the target denture model adjusted by the operator.

[0125] In step 160, based on the adjustment information input by the user, the occlusal relationship of the upper and lower anterior teeth, the occlusal relationship of the upper and lower posterior teeth, the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line are fine-tuned to determine the final full denture.

[0126] Determine in the denture model library the target denture model that is closest to the current patient's anterior tooth arrangement information, determine the maxillary anterior teeth occlusion relationship, maxillary posterior teeth occlusion relationship, maxillary tooth arrangement termination line and mandibular tooth arrangement termination line of the target denture model, and based on the maxillary anterior teeth occlusion relationship and maxillary posterior teeth occlusion relationship of the current target denture model, perform fine adjustments according to the adjustment information input by the user to adjust the angle formed by the line between the labial restriction point and the mandibular vestibule groove point and the occlusal plane, and / or adjust the angle between the line between the maxillary left node point and the mandibular left molar posterior pad point and the occlusal plane, and / or adjust the angle between the line between the maxillary right node point and the mandibular right molar posterior pad point and the occlusal plane, so that the final full denture is more suitable for the current patient. At the same time, ensure that the center of the last tooth in the upper jaw of the final complete denture does not exceed the maxillary dental line, and ensure that the center of the last tooth in the lower jaw of the final complete denture does not exceed the mandibular dental line, so as to ensure the stability of the force on the teeth of the final complete denture.

[0127] In some embodiments, after the final complete denture is determined, each tooth on the final complete denture is moved a preset distance along the occlusal plane to completely separate the tooth from the gums of the final complete denture, and a Boolean algorithm based on a three-dimensional grid is used to determine the collision area between the tooth and the gums of the final complete denture, and the collision area is removed to determine the final complete denture.

[0128] For example, see Fig.14 , Fig.14 FIG. 1 shows a schematic diagram of the structure of gums and teeth of a final complete denture provided in an embodiment of the present application. Fig.14 As shown, the collision area 20 between the tooth 18 and the gum 19 of the final complete denture is determined by a Boolean algorithm of a three-dimensional grid, and the collision area 20 is cut out to determine the final complete denture.

[0129] See also Fig.15 , Fig.15 The structure diagram of a complete denture generation device provided in an embodiment of the present application is shown. The complete denture generation device 200 includes: an acquisition module 210, a first execution module 220, a second execution module 230, a third execution module 240, a fourth execution module 250 and a fifth execution module 260. Specifically: The acquisition module 210 is used to acquire a plurality of tooth feature points reflecting the current tooth arrangement information of the patient.

[0130] The first execution module 220 is used to determine a target denture model that is closest to the anterior teeth arrangement information of the current patient in a denture model library including multiple preset denture models; wherein any preset denture model includes multiple tooth calibration points for reflecting the tooth arrangement information of the current preset denture model; the target denture model is a preset denture model in which the difference between the target angle of a first polygonal figure formed by multiple tooth calibration points corresponding to the multiple preset denture models and the target angle of a second polygonal figure formed by multiple tooth feature points is the smallest.

[0131] The second execution module 230 is used to determine the occlusal relationship of the maxillary and mandibular anterior teeth of the target denture model based on the angle formed by the line between the labial restriction point and the mandibular vestibule groove point of the target denture model and the occlusal plane; the labial restriction point and the mandibular vestibule groove point are determined by multiple tooth calibration points of the target denture model; the occlusal plane is a plane determined by multiple tooth calibration points of the target denture model. The third execution module 240 is used to determine the occlusal relationship between the upper and lower mandibular posterior teeth of the target denture model based on the angle formed by the line between the maxillary node and the mandibular posterior molar pad point of the target denture model and the occlusal plane; the maxillary node and the mandibular posterior molar pad point are respectively the projection points of the target calibration points of multiple tooth calibration points of the target denture model on the maxilla and mandible of the target denture model.

[0132] The fourth execution module 250 is used to determine the maxillary tooth termination line and the mandibular tooth termination line of the target denture model according to the angles between the maxillary tooth line and the mandibular tooth line of the target denture model and the occlusal plane respectively; the maxillary tooth line and the mandibular tooth line are determined according to the projection points of the multiple tooth calibration points of the target denture model on the maxillary and mandibular projection points of the target denture model.

[0133] The fifth execution module 260 is used to fine-tune the occlusal relationship of the upper and lower anterior teeth, the occlusal relationship of the upper and lower posterior teeth, the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line based on the adjustment information input by the user to determine the final full denture.

[0134] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices and modules can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0135] In several embodiments provided in the present application, the coupling or direct coupling or communication connection between the modules shown or discussed may be an indirect coupling or communication connection through some interfaces, devices or modules, which may be electrical, mechanical or other forms.

[0136] In addition, each functional module in each embodiment of the present application can be integrated into a processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The above integrated modules can be implemented in the form of hardware or software functional modules.

[0137] See also Fig.16 , Fig.16 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application is shown. The terminal device 300 in the present application may include one or more of the following components: a processor 310, a memory 320, and one or more applications, wherein the one or more applications may be stored in the memory 320 and configured to be executed by one or more processors 310, and the one or more programs are configured to execute the full denture generation method as described in the aforementioned method embodiment.

[0138] The processor 310 may include one or more processing cores. The processor 310 uses various interfaces and lines to connect various parts of the entire terminal device 300, and executes various functions and processes data of the terminal device 300 by running or executing instructions, programs, code sets or instruction sets stored in the memory 320, and calling data stored in the memory 320. Optionally, the processor 310 can be implemented in at least one hardware form of digital signal processing (DSP), field-programmable gate array (FPGA), and programmable logic array (PLA). The processor 310 can integrate one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), and a modem. Among them, the CPU mainly processes the operating system, user interface, and application programs; the GPU is responsible for rendering and drawing display content; and the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the processor 310, but may be implemented separately through a communication chip.

[0139] The memory 320 may include a random access memory (RAM) or a read-only memory (ROM). The memory 320 may be used to store instructions, programs, codes, code sets or instruction sets. The memory 320 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for implementing at least one function, instructions for implementing the following various method embodiments, etc. The data storage area may also store data created by the terminal device 300 during use.

[0140] See also Fig.17 , Fig.17 A schematic diagram of the structure of a computer-readable storage medium provided in an embodiment of the present application is shown. The computer-readable medium 400 stores program code, and the program code can be called by a processor to execute the cooking control method described in the above method embodiment.

[0141] The computer-readable storage medium 400 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read-only memory), an EPROM, a hard disk or a ROM. Optionally, the computer-readable storage medium 400 includes a non-transitory computer-readable storage medium. The computer-readable storage medium 400 has storage space for program code 510 for executing any method steps in the above method. These program codes can be read from or written to one or more computer program devices. The program code 410 can be compressed, for example, in a suitable form.

[0142] The technical solution provided by the present application, the method for generating a full denture comprises: obtaining a plurality of tooth feature points for reflecting the tooth arrangement information of the current patient; determining a target denture model that is closest to the anterior tooth arrangement information of the current patient in a denture model library including a plurality of preset denture models; wherein any preset denture model comprises a plurality of tooth calibration points for reflecting the tooth arrangement information of the current preset denture model; the target denture model is a preset denture model having the smallest difference between a target angle of a first polygonal figure formed by a plurality of tooth calibration points corresponding to the plurality of preset denture models and a target angle of a second polygonal figure formed by a plurality of tooth feature points; determining the occlusal relationship of the upper and lower anterior teeth of the target denture model according to the angle formed by the line between the labial restriction point and the mandibular vestibule groove point of the target denture model and the occlusal plane; the labial restriction point and the mandibular vestibule groove point are determined by a plurality of tooth calibration points of the target denture model; the occlusal plane is a plane determined by a plurality of tooth calibration points of the target denture model; The occlusal relationship of the upper and lower posterior teeth of the target denture model is determined according to the angle formed by the line between the maxillary node and the mandibular molar posterior pad point of the target denture model and the occlusal plane; the maxillary node and the mandibular molar posterior pad point are the projection points of the target calibration points of multiple tooth calibration points of the target denture model on the maxilla and mandible of the target denture model respectively; the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line of the target denture model are determined according to the angles between the maxillary tooth arrangement line and the mandibular tooth arrangement line of the target denture model and the occlusal plane respectively; the maxillary tooth arrangement line and the mandibular tooth arrangement line are determined according to the projection points of multiple tooth calibration points of the target denture model on the maxilla and mandible of the target denture model respectively; based on the adjustment information input by the user, the occlusal relationship of the upper and lower anterior teeth, the occlusal relationship of the upper and lower posterior teeth, the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line are fine-tuned to determine the final full denture. Thus, the target denture model closest to the current patient's anterior teeth arrangement information is determined in the denture model library, and then the upper and lower anterior teeth occlusion relationship, the posterior teeth occlusion relationship, the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line of the target denture model are determined, so that the operator can further adjust the target denture model based on the upper and lower anterior teeth occlusion relationship, the posterior teeth occlusion relationship, the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line of the current target denture model to obtain the final full denture. In this way, the operator can obtain the final full denture by making fine adjustments based on the target denture model to improve the tooth arrangement efficiency. And the above method requires less work experience of the operator.

[0143] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for producing a complete denture, characterized in that: The method comprises: Acquire multiple tooth feature points for reflecting the current patient's tooth arrangement information; Determine a target denture model that is closest to the anterior teeth arrangement information of the current patient in a denture model library including a plurality of preset denture models; wherein any preset denture model comprises a plurality of tooth calibration points for reflecting the tooth arrangement information of the current preset denture model; the target denture model is a preset denture model having the smallest difference between a target angle of a first polygonal figure formed by the plurality of tooth calibration points respectively corresponding to the plurality of preset denture models and a target angle of a second polygonal figure formed by the plurality of tooth feature points; Determine the occlusal relationship of the upper and lower jaw anterior teeth of the target denture model according to the angle formed by the line between the labial restriction point and the mandibular vestibule groove point of the target denture model and the occlusal plane; the labial restriction point and the mandibular vestibule groove point are determined by the multiple tooth calibration points of the target denture model; the occlusal plane is a plane determined by the multiple tooth calibration points of the target denture model; Determine the occlusal relationship of the upper and lower posterior teeth of the target denture model according to the angle formed by the line between the maxillary node and the mandibular molar posterior pad point of the target denture model and the occlusal plane; the maxillary node and the mandibular molar posterior pad point are respectively the projection points of the target calibration points of the multiple tooth calibration points of the target denture model on the maxilla and mandible of the target denture model; According to the angles between the maxillary tooth line and the mandibular tooth line of the target denture model and the occlusal plane, the maxillary tooth line and the mandibular tooth line of the target denture model are determined; the maxillary tooth line and the mandibular tooth line are determined according to the projection points of the multiple tooth calibration points of the target denture model on the maxillary and mandibular projection points of the target denture model; Based on the adjustment information input by the user, the occlusal relationship of the upper and lower anterior teeth, the occlusal relationship of the upper and lower posterior teeth, the maxillary tooth arrangement termination line and the mandibular tooth arrangement termination line are fine-tuned to determine the final full denture.

2. The method for producing a complete denture according to claim 1, characterized in that: The multiple tooth marking points include the incisor mastoid marking point, the left canine center point and the right canine center point; the multiple tooth feature points include the incisor mastoid point, the left canine point and the right canine point; The step of determining a target denture model that is closest to the anterior teeth arrangement information of the current patient from a denture model library including a plurality of preset denture models comprises: Determine first polygonal figures corresponding to the plurality of preset denture models respectively; the first polygonal figure corresponding to the target preset denture model among the plurality of preset denture models is a figure formed by connecting the incisor papilla calibration point, the left canine center point and the right canine center point of the target preset denture model one by one; Connecting the incisor mastoid point, the left canine point and the right canine point one by one to determine the second polygonal figure; Respectively determine the difference between the target acute angle of the first polygonal figure and the target acute angle of the second polygonal figure respectively corresponding to the plurality of preset denture models; The preset denture model with the smallest difference is determined as the target denture model.

3. The method for producing a complete denture according to claim 2, characterized in that: The method further comprises: Determining a midline of the first polygonal figure corresponding to the target denture model; Determine the point where the midline is at a preset distance from the incisor papilla calibration point on the projection line of the mandible of the target denture model as the labial limit point; The point where the midline has the largest vertical distance from the incisor mastoid calibration point on the projection line of the upper jaw of the target denture model is determined as the mandibular vestibule groove point.

4. The method for producing a complete denture according to claim 2, characterized in that: The plurality of tooth marking points further include a left knot point and a right knot point, and the method further includes: Determine the projection points of the left node and the right node on the maxilla of the target denture model as the maxillary node; The projection points of the left node and the right node on the upper jaw of the target denture model are determined as the mandibular molar posterior pad points.

5. The method for producing a complete denture according to claim 4, characterized in that: The maxillary node includes a maxillary left node and a maxillary right node, and the mandibular retromolar pad includes a mandibular left retromolar pad and a mandibular right retromolar pad; The step of determining the occlusal relationship of the upper and lower mandibular posterior teeth of the target denture model according to the angle formed by the line between the maxillary node and the mandibular molar posterior pad point of the target denture model and the occlusal plane comprises: Determine the occlusal relationship of the upper and lower mandibular posterior teeth according to the angle formed by the line between the maxillary left node and the mandibular left molar posterior pad point and the occlusal plane; Alternatively, the occlusal relationship between the upper and lower mandibular posterior teeth is determined based on the angle formed by the line between the maxillary right node point and the mandibular right molar posterior pad point and the occlusal plane.

6. The method for producing a complete denture according to claim 1, characterized in that: The method further comprises: Determine that the plurality of tooth calibration points of the target denture model are respectively at a plurality of first projection points of the upper jaw of the target denture model; Determine a plurality of highest points between any two of the plurality of first projection points; Connecting the plurality of first projection points and the plurality of highest points between the first projection points in sequence to determine the maxillary dental line; and / or, determining that the plurality of tooth calibration points of the target denture model are respectively at a plurality of second projection points of the mandible of the target denture model; According to a plurality of highest points between any two of the plurality of second projection points; The multiple second projection points and the multiple highest points between the two second projection points are connected in sequence to determine the mandibular dental line.

7. The method for producing a complete denture according to any one of claims 1 or 6, characterized in that: The step of determining the maxillary tooth row termination line and the mandibular tooth row termination line of the target denture model according to the angles between the maxillary tooth row line and the mandibular tooth row line of the target denture model and the occlusal plane, comprises: Determine a plurality of first reference planes that are parallel to the occlusal plane and intersect with different points on the maxillary dental line; Determine the angles between the plurality of first reference planes and the maxillary dental line respectively; Determine a perpendicular line of an intersection between a target first reference plane having an included angle of a first preset threshold and the maxillary dental line as the maxillary dental line; Determining a plurality of second reference planes that are parallel to the occlusal plane and intersect with different points on the mandibular dental line; Determine the angles between the plurality of second reference planes and the mandibular dental line respectively; A perpendicular line of the intersection between the target second reference plane whose included angle is the second preset threshold and the mandibular dental line is determined as the mandibular dental line.

8. A complete denture production device, characterized in that: The device comprises: An acquisition module, used for acquiring a plurality of tooth feature points reflecting the current patient's tooth arrangement information; A first execution module is used to determine a target denture model that is closest to the anterior teeth arrangement information of the current patient in a denture model library including a plurality of preset denture models; wherein any preset denture model comprises a plurality of tooth calibration points for reflecting the tooth arrangement information of the current preset denture model; the target denture model is a preset denture model having the smallest difference between a target angle of a first polygonal figure formed by the plurality of tooth calibration points respectively corresponding to the plurality of preset denture models and a target angle of a second polygonal figure formed by the plurality of tooth feature points; A second execution module is used to determine the occlusal relationship of the upper and lower jaw anterior teeth of the target denture model according to the angle formed by the line between the labial restriction point and the mandibular vestibule groove point of the target denture model and the occlusal plane; the labial restriction point and the mandibular vestibule groove point are determined by the multiple tooth calibration points of the target denture model; the occlusal plane is a plane determined by the multiple tooth calibration points of the target denture model; The third execution module is used to determine the occlusal relationship of the upper and lower posterior teeth of the target denture model according to the angle formed by the line between the maxillary node and the mandibular molar posterior pad point of the target denture model and the occlusal plane; the maxillary node and the mandibular molar posterior pad point are respectively the projection points of the target calibration points of the multiple tooth calibration points of the target denture model on the maxilla and mandible of the target denture model; A fourth execution module is used to determine the maxillary tooth row termination line and the mandibular tooth row termination line of the target denture model according to the angles between the maxillary tooth row line and the mandibular tooth row line of the target denture model and the occlusal plane respectively; the maxillary tooth row line and the mandibular tooth row line are determined according to the projection points of the multiple tooth calibration points of the target denture model at the projection points of the maxilla and the mandible of the target denture model respectively; The fifth execution module is used to fine-tune the occlusal relationship of the upper and lower anterior teeth, the occlusal relationship of the upper and lower posterior teeth, the maxillary tooth row termination line and the mandibular tooth row termination line based on the adjustment information input by the user to determine the final full denture.

9. A terminal device, characterized in that: include: one or more processors; Memory; One or more applications, wherein the one or more applications are stored in the memory and are configured to be executed by the one or more processors according to the method for generating a complete denture as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores program codes, which can be called by a processor to execute the method for generating a complete denture as described in any one of claims 1 to 7.

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