Orthodontic method and system based on physical engine and biological engine

Abstract

The invention discloses an orthodontic method and system based on a physical engine and a biological engine, and relates to the technical field of orthodontics. The physical engine and the biological engine can be established by considering oral physical structure information, body basic information and an orthodontic scheme; and calling the physical engine and the biological engine to analyze and process the orthodontic scheme at any stage, generating a target orthodontic scheme and corresponding prompt information, and dynamically updating the digital tooth model. According to the method, physical constraints and biological constraints are provided for formulation of the orthodontic scheme by constructing the physical engine and the biological engine, the personalized orthodontic scheme closer to reality can be provided, and a patient is helped to achieve a better orthodontic effect by dynamically updating and prompting information.

Description

Technical Field

[0001] This invention relates to the field of orthodontic technology, and more specifically to an orthodontic method and system based on a physics engine and a bioengine. Background Technology

[0002] In recent years, the digitalization of oral technology has developed rapidly, and invisible braces have gradually become more popular. Invisible braces are the use of transparent aligners to correct the position and angle of teeth.

[0003] Compared to traditional metal braces, clear aligners are more comfortable, aesthetically pleasing, and easier to clean, making them popular with both doctors and patients. However, there are currently some serious problems in the digital design and manufacturing process of clear aligners, mainly including the following aspects:

[0004] First, there is a lack of physical constraints: in the current digital design process of invisible clear aligners, the movement of teeth is not constrained by Newtonian mechanics. Each tooth has its own coordinate system and they do not affect each other. There is no unified coordinate system that includes the upper and lower teeth respectively. Due to the lack of physical constraints, the tooth movement process does not conform to the laws of nature and cannot realistically simulate the interaction between teeth.

[0005] Second, there is a lack of biological constraints: Current invisible clear aligner designs completely ignore the constraints of anatomical medicine. In reality, tooth movement is limited by the support range of the alveolar bone, and the formation of new bone and potential risks must also be considered. However, in the current digital design process, any tooth can be moved "outside the oral cavity" without considering whether the moved position has sufficient alveolar bone support or whether there are any potential health risks.

[0006] Third, lack of risk warnings and constraints: In current technology, digital design demonstration animations of invisible clear aligners often lack warnings and constraints on potential risks during the orthodontic process, which can easily lead to irreversible medical accidents.

[0007] Therefore, it is necessary to provide a novel orthodontic method and system based on physical and biological engines to solve the aforementioned problems in the prior art. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a teeth straightening method and system based on a physics engine and a bioengine, thereby solving the problems of the lack of physical constraints, biological constraints, and risk warnings in existing technologies.

[0009] Firstly, a teeth straightening method based on a physics engine and a biological engine includes:

[0010] Two three-dimensional spatial coordinate systems are constructed, and the upper and lower teeth are included in them respectively. Each tooth is assigned a movement attribute to generate a physics engine. The teeth in the three-dimensional spatial coordinate systems affect each other, and the two three-dimensional spatial coordinate systems also affect each other.

[0011] A physical engine and a biological engine are established, taking into account oral physical structure information, basic body information, and orthodontic treatment plans.

[0012] Obtain patient information of the target patient, including target oral physical structure information and target basic body information, and establish a digital dental model based on the target oral structure information;

[0013] A dental orthodontic plan is determined. Based on the dental orthodontic plan, the target oral physical structure information, and the target body basic information, the physical engine and biological engine are invoked to analyze and process the dental orthodontic plan, generate the target dental orthodontic plan and its corresponding prompt information, and dynamically update the digital dental model.

[0014] Preferably, the target oral structure information includes alveolar bone density, alveolar bone width, cortical bone density, cortical bone width, additional anchorage, special alveolar bone, maxillary and mandibular bone structure information, and maxillary and mandibular bone growth and development information; the orthodontic plan includes the expected movement amount and braces characteristics, and the expected movement amount includes the movement distance and movement direction; the target physical information includes age, dental implants, dentures, and medical history.

[0015] Preferably, based on the orthodontic plan, target oral physical structure information, and target body basic information, the physical engine and biological engine are invoked to analyze and process the orthodontic plan, generating the target orthodontic plan and its corresponding prompt information, including:

[0016] The vitality value of the teeth is determined based on the age, dental implants, and dentures, and the first basic movement influence coefficient is determined based on the vitality value;

[0017] The health value of the teeth is determined based on the medical history, and the second basic movement influence coefficient is determined based on the health value of the teeth.

[0018] The basic influence coefficient is determined based on the first basic movement influence coefficient and the second movement influence coefficient.

[0019] Preferably, based on the orthodontic plan, target oral physical structure information, and target body basic information, the physical engine and biological engine are invoked to analyze and process the orthodontic plan, generating the target orthodontic plan and its corresponding prompt information, and the method further includes:

[0020] The first movement influence coefficient is determined based on the alveolar bone density, and the greater the alveolar bone density, the greater the first movement influence coefficient.

[0021] The first actual movement amount is determined based on the basic influence coefficient, the first movement amount influence coefficient, and the expected movement amount.

[0022] When the first actual movement amount is greater than the alveolar bone width threshold, the second movement amount influence coefficient is determined based on the bone cortex density. The greater the bone cortex density, the greater the second movement amount influence coefficient.

[0023] The second actual movement amount is determined based on the basic influence coefficient, the second movement amount influence coefficient, and the expected movement amount;

[0024] When the second actual movement exceeds the bone cortical width threshold, a risk warning message is generated.

[0025] Preferably, based on the initial orthodontic plan, target oral physical structure information, and target body basic information, the bioengine is invoked to analyze and process the initial orthodontic plan, generating a target orthodontic plan and its corresponding risk warning information, further including:

[0026] Determine whether additional support is needed, and determine the configuration parameters of the additional support, including the location of the force application point, the position of the force application point, and the magnitude of the tensile force.

[0027] Preferably, based on the orthodontic plan, target oral physical structure information, and target body basic information, the bioengine is invoked to analyze and process the initial orthodontic plan, generating a target orthodontic plan and its corresponding risk warning information, further including:

[0028] The special alveolar bone refers to the alveolar bone corresponding to the wisdom tooth extraction position, the extraction orthodontic position, and the missing tooth position. When the special alveolar bone exists, the bone density of the special alveolar bone is determined according to the extraction and / or loss time of the wisdom tooth extraction position, the extraction orthodontic position, and the missing tooth position. The longer the extraction time and / or loss time, the greater the bone density of the special alveolar bone.

[0029] The influence coefficient of the third movement amount is determined based on the bone density of the specific tooth; the greater the bone density of the specific tooth, the greater the influence coefficient of the third movement amount.

[0030] Preferably, based on the initial orthodontic plan, target oral physical structure information, and target body basic information, the bioengine is invoked to analyze and process the initial orthodontic plan, generating a target orthodontic plan and its corresponding risk warning information, further including:

[0031] Based on the structural information of the maxilla and mandible, determine whether there are structural abnormalities in the maxilla and mandible. If there are structural abnormalities, determine the arch of the dental arch after the movement based on the actual movement of all teeth, and determine the position of the mandible after the movement based on the arch of the dental arch.

[0032] Based on the growth and development information of the upper and lower jaws, it is determined whether the upper and lower dental arches have completed tooth replacement. If the growth and development have not yet ended, it is determined whether the orthodontic plan has room for tooth replacement. If the room for tooth replacement is insufficient in the orthodontic plan, a risk warning message is generated.

[0033] The constraint conditions of the bone resorption area are retrieved to determine whether the lower teeth in the orthodontic plan have been moved to the bone resorption area. When the lower teeth are moved to the bone resorption area, a risk warning message is generated. The bone resorption area is the area that is gradually absorbed with age, that is, the area below the lower anterior teeth and above the chin.

[0034] Preferably, based on the initial orthodontic plan, target oral physical structure information, and target body basic information, the bioengine is invoked to analyze and process the initial orthodontic plan, generating a target orthodontic plan and its corresponding risk warning information, further including:

[0035] The initial orthodontic treatment plan is modified based on the characteristics of the orthodontic force and the characteristics of the braces, including the characteristics of the braces material and the characteristics of the braces shape. The orthodontic force is used to move a group of teeth in a direction that is close to the same direction. The threshold corresponding to the risk information prompt can be dynamically adjusted according to the orthodontic force.

[0036] Preferably, dynamically updating the digital dental model includes:

[0037] Mark all actual movement amounts and movement sequences, and mark the pain level of all actual movement amounts, with the larger the actual movement amount, the higher the pain level;

[0038] The motion curve dynamically displays all actual movements after the marker is marked.

[0039] The digital tooth model is dynamically updated based on the motion curve to generate a digital dynamic orthodontic model.

[0040] Secondly, a bio-engine-based orthodontic system includes:

[0041] The physics engine construction module is used to construct two three-dimensional spatial coordinate systems, incorporating the upper and lower jaw teeth respectively, assigning movement attributes to each tooth, and generating a physics engine. The teeth within the three-dimensional spatial coordinate systems influence each other, and the two three-dimensional spatial coordinate systems also influence each other.

[0042] The bioengine building module is used to build physical and biological engines by taking into account oral physical structure information, basic body information, and orthodontic plans.

[0043] The data acquisition module is used to acquire patient information of the target patient, including target oral physical structure information and target basic body information, and to establish a digital tooth model based on the target oral structure information;

[0044] The solution generation module is used to determine the orthodontic solution. Based on the orthodontic solution, the target oral physical structure information and the target body basic information, it calls the physical engine and biological engine to analyze and process the orthodontic solution, generate the target orthodontic solution and its corresponding prompt information, and dynamically update the digital tooth model.

[0045] The beneficial effects of this invention are reflected in the following aspects: This invention provides a teeth straightening method based on a physics engine and a biological engine. It can actively simulate the physical rules of the objective world, oral physical structure information, basic body information, and teeth straightening plans to establish a physics engine and a biological engine; acquire patient information of the target patient, including target oral physical structure information and target basic body information, and establish a digital teeth model based on the target oral structure information; determine an initial teeth straightening plan; based on the initial teeth straightening plan, target oral physical structure information, and target basic body information, call the biological engine to analyze and process the initial teeth straightening plan, generate a target teeth straightening plan and its corresponding prompts, and dynamically update the digital teeth model. This invention provides physical and biological constraints for the formulation of teeth straightening plans by constructing a biological engine, enabling personalized and near-objective straightening plans, and helping patients achieve better teeth straightening results through dynamic updates and prompts.

[0046] In addition, the present invention also provides a bio-engine-based orthodontic system. Attached Figure Description

[0047] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0048] Figure 1 A flowchart illustrating a teeth straightening method based on a physics engine and a biological engine, provided for an embodiment of the present invention;

[0049] Figure 2 Force analysis diagram of teeth undergoing sequential distalization provided in an embodiment of the present invention;

[0050] Figure 3 This is a schematic diagram of the alveolar bone density ratio in various regions provided in the embodiments of the present invention;

[0051] Figure 4 This is a schematic diagram of the alveolar bone width in various regions provided in the embodiments of the present invention;

[0052] Figure 5 This is a schematic diagram of the cortical bone width of various regions provided in the embodiments of the present invention;

[0053] Figure 6 This is a schematic diagram illustrating risk warning information provided in an embodiment of the present invention;

[0054] Figure 7 This is a schematic diagram of an abnormal condition of the maxilla and mandible provided in an embodiment of the present invention;

[0055] Figure 8 This is a schematic diagram illustrating another abnormal condition of the maxilla and mandible provided in an embodiment of the present invention.

[0056] Figure 9 This is a schematic diagram of a dental orthodontic system based on a physics engine and a biological engine, provided as an embodiment of the present invention. Detailed Implementation

[0057] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0058] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0059] Current orthodontic model demonstration animations lack physical and biological rules and variables; doctors and patients can only view them and cannot modify them, making them "read-only" files. If modifications are desired, the only options are to call the manufacturer's sales representative or leave a message in the manufacturer's message book, describing how to modify the "virtual animation." Apart from the animation, there are no other variables that can be modified. This communication method provides an extremely poor user experience in the efficiency-driven internet age, with very little modifiable content, and even after modification, it remains a virtual animation without any physical or biological reference value.

[0060] Based on the above reasons, such as Figure 1 As shown, this invention provides a teeth straightening method based on a physics engine and a biological engine, comprising:

[0061] Step 1: Construct two three-dimensional spatial coordinate systems, including the upper and lower jaw teeth respectively, assign each tooth a movement attribute, and generate a physics engine. The teeth in the three-dimensional spatial coordinate systems influence each other, and the two three-dimensional spatial coordinate systems also influence each other.

[0062] like Figure 2 As shown, during the distalization of the sequence, the two terminal teeth actively move backward, and all other teeth passively move in the opposite direction. Assuming that the two terminal teeth move backward by the same amount, the remaining teeth move forward. Correspondingly, the calculation process for the movement of the remaining teeth is as follows: Determine the actively moving teeth and the passively moving teeth; divide the actively moving teeth and the passively moving teeth into two groups, with the dividing line being a; the line b' parallel to the direction and distance b of the actively moving teeth intersects the dividing line a at point n, and the included angle ∠anb' is 90°. Using trigonometric functions, Sin90°=1, which is converted to x100%=100%. Therefore, the total passive movement of the remaining teeth c is equal to the total active movement of the terminal teeth 2b.

[0063] As can be seen from the above, the amount of movement between each maxillary tooth and between each mandibular tooth is influenced by physical constraints. Furthermore, since teeth are divided into maxillary teeth and mandibular teeth, the corresponding maxillary teeth and mandibular teeth as a whole are also influenced by physical constraints. Therefore, this embodiment of the invention constructs two three-dimensional spatial coordinate systems to realize the force analysis of each tooth under the relevant three-dimensional spatial coordinate system, providing basic support for subsequent biological engine analysis.

[0064] Step 2: Establish a bioengine by considering oral physical structure information, basic body information, and orthodontic treatment plans;

[0065] The physics engine built in Step 1 provides physical constraints, indicating the relationship between the points of force applied to teeth, their magnitude, and direction, thus providing data support for the bio-engine. Through the physics engine, we can understand that both active and passive tooth movement involve force, but tooth movement is not simply a matter of "how much force is applied equals how much the tooth moves." For example, when performing sequential distalization, assuming that the movement distance of the two distal teeth is both x, we cannot calculate that the reverse movement distance of the remaining 12 teeth is 2x / 12 = x / 6. This is because orthodontic treatment is performed within a living organism, not within a homogeneous, fragmented inorganic medium; we need to incorporate "variables" from within the living organism. These variables include the patient's oral cavity physical structure information and basic bodily information.

[0066] The oral physical structure information may include alveolar bone density, alveolar bone width, cortical bone density, cortical bone width, additional anchorage, special alveolar bone, maxillary and mandibular bone structure information, and maxillary and mandibular bone growth and development information, etc., which can be modified locally or entirely according to actual needs, and are not limited in this embodiment. The basic physical information may include age, dental implants, dentures, and medical history, etc., and are not limited in this embodiment. The orthodontic plan may include the expected movement of each tooth, additional anchorage configuration information, braces material information, etc., and the expected movement includes information such as single movement amount, total movement amount, movement direction, and movement size.

[0067] It should also be noted that the embodiments of the present invention not only provide basic physical and biological engines, but also provide interfaces for modifying physical and biological engines. Through the client, doctors can, based on current popular orthodontic theories, years of accumulated work experience, patient needs, and the patient's actual situation, not only change the calculation methods of the physical and biological engines, but also replace or add new physical and biological engines to adapt to different orthodontic theories. The biological engine can be modified to adapt to different real patient situations, thereby obtaining a more interactive and realistic invisible orthodontic solution. The client includes, but is not limited to, computers, tablets, and mobile phones.

[0068] Step 2: Obtain patient information of the target patient, including target oral physical structure information and target body basic information; establish a digital dental model based on the target oral structure information.

[0069] In this embodiment, the target oral cavity structural information includes alveolar bone density, alveolar bone width, cortical bone density, cortical bone width, additional anchorage, special alveolar bone, maxillary and mandibular structural information, and maxillary and mandibular growth and development information; the orthodontic plan includes the expected movement amount and braces characteristics, and the expected movement amount includes the movement distance and direction; the target physical information includes age, dental implants, dentures, and medical history. The target oral cavity structural information can be obtained from medical images such as oral plaster models, digital oral scan models, full-mouth panoramic radiographs, cephalometric lateral radiographs, and CBCT scans, while the physical information can be obtained from hospital medical records.

[0070] Step 3: Determine the orthodontic treatment plan. Based on the orthodontic treatment plan, the target oral physical structure information, and the target body basic information, call up the physical engine and biological engine to analyze and process the orthodontic treatment plan, generate the target orthodontic treatment plan and its corresponding prompt information, and dynamically update the digital tooth model.

[0071] In this embodiment, the bioengine is invoked to analyze and process the initial orthodontic plan, generating a target orthodontic plan and its corresponding risk warning information, and dynamically updating the digital tooth model, including: determining a tooth vitality value based on the age, dental implant, and denture; determining a first basic movement influence coefficient based on the vitality value; determining a tooth health value based on the medical history; determining a second basic movement influence coefficient based on the tooth health value; and determining a basic influence coefficient based on the first and second basic movement influence coefficients.

[0072] Currently, all invisible aligner manufacturers, upon receiving patient information from doctors, do not adhere to the physical rules of the objective world. They fail to integrate each tooth in the upper and lower jaws into a complete, interconnected coordinate system, instead allowing teeth to move independently without interaction or mutual influence between the teeth or the upper and lower dentition. This means the tooth movement is based on the subjective assumptions of the manufacturer's staff. Manufacturers call this "fictional orthodontic process animation" a "simulation animation," but it doesn't meet the requirements of "simulation." It fails to demonstrate any key characteristics of a physical or abstract system, and it doesn't consider the patient's biological information. It simply designs and manufactures products mechanically, meaning the parameters used are the same for all patients—for example, a step size of 0.25 mm per movement and a recommended replacement cycle of one set every two weeks, regardless of the patient's age (15 or 55). However, in reality, the design and replacement cycle of aligners should differ depending on age and patient condition. For example, the design and replacement cycle should be significantly different for patients in their peak growth and development period. In addition, patient information submitted by the dentist, such as whether the patient has a history of periodontal disease and whether the gingiva is thick or thin (soft tissue width and blood supply), should also be considered. For older patients with a history of periodontal disease and thin gingiva, the movement step should be less than 0.25 mm.

[0073] The bio-engine assigns certain coefficients to teeth, such as a health value (secondary baseline influence coefficient) and a vitality value (primary baseline influence coefficient). If a patient has a history of periodontal disease, their health value can be adjusted; tooth movement can be set to 50% of its original value, adjacent tooth movement to 75%, and the braces replacement cycle can be extended by 5-10 days (a total of 20-25 days between replacements). This reduces the risks during orthodontic treatment. The health value can be modified based on the actual situation, rather than being a fixed coefficient. The "vitality value" can be set according to the patient's age and the condition of their teeth. For example, a patient over 40 years old can have their vitality value set to 90% of its original value, while the vitality value for dental implants can be set to 1%, indicating that the teeth cannot move actively, only passively, due solely to bone deformation.

[0074] In this embodiment, based on the orthodontic plan, target oral physical structure information, and target body basic information, the bioengine is invoked to analyze and process the initial orthodontic plan, generating a target orthodontic plan and its corresponding prompt information, including: determining a first movement influence coefficient based on the alveolar bone density, the larger the alveolar bone density, the larger the first movement influence coefficient; determining a first actual movement amount based on the basic influence coefficient, the first movement influence coefficient, and the expected movement amount; when the first movement amount is greater than the alveolar bone width threshold, determining a second movement influence coefficient based on the bone cortex density, the larger the alveolar bone density, the larger the second movement influence coefficient; determining a second actual movement amount based on the basic influence coefficient, the second movement influence coefficient, and the expected movement amount; and generating risk warning information when the second movement amount exceeds the bone cortex width threshold.

[0075] In the actual design of orthodontic treatment plans, we cannot measure the bone density of every patient in different areas of their entire mouth, so we cannot know the true value of bone density. However, this is not what we need. What we need is "relative bone density," such as: bone density of the mandibular posterior teeth area > mandibular anterior teeth area > maxillary anterior teeth area > maxillary posterior teeth area. The higher the bone density, the slower the movement speed.

[0076] To better understand this embodiment, the example of distalization mentioned above will be described in detail below. Specifically, the basic movement influence coefficient can be set to 1, the bone mineral density ratio of the four regions can be set to 1:0.9:0.8:0.7, and the relative movement between the posterior and anterior teeth can be 0.25 mm. Figure 3 As shown, this value can be modified according to the actual situation and is not limited in this embodiment. Based on these data, we can get 2(0.7x) / 12[2(0.7+0.7+0.7+0.8+0.8+0.8) / 12]≈0.156x. Therefore, we know that the posterior tooth movement : other teeth movement = x:0.156x, x+0.156x=0.25mm, x≈0.216mm, that is, the absolute movement of the posterior teeth is about 0.216mm, and the absolute movement of the anterior teeth is about 0.034mm.

[0077] Furthermore, as teeth move within the alveolar bone, their movement speed is relatively stable as long as it does not exceed the width of the alveolar bone. However, once the maximum width of the alveolar bone is reached, the tooth will contact the "cortical bone," thus affecting the direction and speed of tooth movement. For example, ... Figure 4As shown, the alveolar bone width around each tooth is set (not a fixed value, which can be changed based on doctor's examination and imaging examination): 2.5mm on both the labial and lingual sides of the maxillary posterior teeth region, 1mm on the labial side and 2.5mm on the lingual side of the anterior teeth region, and 2mm on both the labial and lingual sides of the mandibular posterior teeth region, 1mm on the labial side and 2.5mm on the lingual side of the anterior teeth region; 2mm is also set behind the distal teeth of both the maxilla and mandible. When the posterior teeth move backward, the anterior teeth are affected by the reaction force and move forward. After a period of time, the posterior teeth will reach the edge of the alveolar bone and come into contact with the high-density "cortical bone." At this point, the movement speed of the posterior teeth slows down, and the movement influence coefficient needs to be adjusted according to the cortical bone. Of course, it should be understood that in some embodiments, such as vertical tooth movement, excessive inward movement of the teeth may also cause them to collide with the cortical bone, resulting in deceleration, deflection, and risks.

[0078] Specifically, like alveolar bone, the cortical bone also has bone density and width. Including this variable can lead to changes in tooth movement speed and direction, as well as the risk of "exceeding a threshold." For example, such as... Figure 5 As shown, assuming the bone cortical density is 1.5, the width at the distal end is 2.5mm, and the rest are 1.5mm, after the posterior teeth move backward and the anterior teeth passively move forward for a period of time, the two central incisors (the frontmost teeth) will first contact the bone cortex. In this calculation, the original alveolar bone density of 0.8 will be replaced with a bone cortical density of 1.5, thus slowing down the passive tooth movement. If the movement continues and the anterior teeth move beyond the width of the bone cortex, a risk occurs, and the tooth may protrude from the bone, generating a risk warning message, such as... Figure 6 As shown. It should be noted that the risk warning can be categorized based on the cortical bone width threshold. If the width is greater than the first cortical bone width threshold but less than or equal to the second cortical bone width threshold, a level one risk warning is generated. If the width is greater than the second cortical bone width threshold but less than or equal to the third cortical bone width threshold, a level two risk warning is generated. The risk thresholds and risk levels for each cortical bone width can be adjusted according to actual circumstances. It is understood that this risk warning method applies to all risk warnings provided in this embodiment.

[0079] It should also be noted that the cortical bone not only affects the speed of tooth movement, but also causes changes in the direction of tooth movement, such as arch expansion.

[0080] Of course, in other embodiments, gingival width (thickness) can also be considered, as it affects tooth abduction and retraction. If the teeth only move within the dental arch (translation, elongation, and intrusion) without arch expansion or retraction, the effect of the gingiva can be ignored, i.e., it only acts in the inward and outward directions in a two-dimensional plane. Typically, this gingival influence coefficient can be disregarded. For patients with significantly thick gingiva, where blood supply is ample and tooth abduction can continue even after the tooth roots contact the cortical bone, a risk assessment can be based on their gingival width threshold.

[0081] In this embodiment, the corresponding influence coefficient can be determined by combining basic information such as the patient's age and periodontal disease history. Based on the basic influence coefficient, the corresponding influence coefficient can be determined by combining physical structural information such as alveolar bone and cortical bone values, and then the comprehensive influence coefficient can be determined, which can further optimize the orthodontic treatment plan.

[0082] In this embodiment, based on the initial orthodontic plan, target oral physical structure information, and target body basic information, the bioengine is invoked to analyze and process the initial orthodontic plan, generating the target orthodontic plan and its corresponding risk warning information. The method also includes: the special alveolar bone being the alveolar bone corresponding to the wisdom tooth extraction position, the extraction and orthodontic position, and the missing tooth position; when special alveolar bone exists, the bone density of the special alveolar bone is determined based on the extraction and / or loss time of the wisdom tooth extraction position, the extraction and orthodontic position, and the greater the extraction time and / or loss time, the greater the bone density of the special alveolar bone; a third movement influence coefficient is determined based on the special tooth bone density, and the greater the special tooth bone density, the greater the third movement influence coefficient.

[0083] Some orthodontic treatment plans require the extraction of wisdom teeth or premolars before treatment. This is usually because the dental arch is too crowded, causing the teeth to be pushed forward. We need to move the teeth backward to relieve the crowding of the front teeth. If wisdom teeth or premolars are not extracted, the teeth cannot be moved backward and aligned. There is no space in the back of the upper jaw, and the bone density of the ramus in the back of the lower jaw is higher. In addition, the lower wisdom teeth are usually in contact with the nerve canal, and movement or stimulation can have unknown effects. Therefore, in cases of excessive crowding, extraction is more effective than not extraction.

[0084] Specifically, this embodiment treats the wisdom tooth as a special alveolar bone region with a bone density of 99, thus approximating reality. When the wisdom tooth is extracted before orthodontic treatment, the posterior teeth can move backward more smoothly. In this case, the bone density coefficient of the wisdom tooth extraction socket can be set to 0.3. If the wisdom tooth is extracted much earlier than expected before orthodontic treatment, the bone density coefficient increases by 0.2 for every two months the extraction is made earlier, up to a maximum of 2.0. This is because the wound from wisdom tooth extraction heals and forms a scar-like structure, similar to the higher bone density at the fracture site after a bone fracture heals. Of course, these coefficients (variables) can be modified artificially. They can be adjusted to values ​​closer to reality by comparing X-ray images with surrounding bones. This embodiment does not impose any restrictions on this.

[0085] In this embodiment, based on the orthodontic plan, target oral physical structure information, and target body basic information, the bioengine is invoked to analyze and process the initial orthodontic plan, generating the target orthodontic plan and its corresponding risk warning information. This also includes: determining whether there are structural abnormalities in the maxilla and mandible based on the maxillary and mandibular structure information; if structural abnormalities exist, determining the arch line of the moved teeth based on the actual movement of all teeth, and determining the position of the mandible after movement based on the arch line; determining whether the upper and lower dental arches have completed tooth replacement based on the maxillary and mandibular growth and development information; if growth and development have not yet ended, determining whether there is sufficient space for tooth replacement in the orthodontic plan; generating risk warning information when the space for tooth replacement in the orthodontic plan is insufficient; and invoking bone resorption region constraints to determine whether the lower teeth in the orthodontic plan have been moved to the bone resorption region; generating risk warning information when the lower teeth have been moved to the bone resorption region. The bone resorption region is the region that gradually absorbs with age, i.e., the region below the lower anterior teeth and above the chin.

[0086] Abnormalities of the maxilla and mandible include two types of positional abnormalities. The first type is: narrowing of the maxilla, leading to a narrow upper dental arch, which in turn inhibits the overall growth of the mandible. The maxillary posterior teeth "recess" the mandibular posterior teeth, resulting in abnormal occlusion and anterior overbite, such as... Figure 7 As shown, the second abnormality is: a narrow mandibular arch or a wide maxilla, which prevents the mandibular posterior teeth from being suppressed, thus requiring mandibular protrusion for normal chewing function. The patient has a reverse occlusion, such as... Figure 8 As shown.

[0087] Currently, none of the manufacturers' demonstration animations or finished products take into account the changes in mandibular position caused by the width of the posterior teeth. While the maxilla is expanded, the overall mandibular position remains unchanged, resulting in discrepancies between the actual orthodontic results and the demonstration animations. Some manufacturers also arbitrarily modify the mandibular position virtually without adjusting the arch width, leading to mismatched upper and lower dental arches, malocclusion, and inability to chew food properly after treatment.

[0088] The physical and biological engines provided in this embodiment take into account maxillary and mandibular abnormalities. Adjustments to the width of the upper and lower dental arches will affect the overall position of the mandible. The mandible, which has been "suppressed," gradually releases due to reduced obstruction. If the maxillary dental arch is narrowed or the mandibular dental arch is widened, the mandible is forced to retract. That is, the mandibular position (reference position) is determined by the matching degree of the arc of the tooth connection lines, rather than by artificially controlling the mandibular position. Furthermore, this is a continuous and slow process; the mandible cannot directly jump to a new position, but changes gradually with the width of the dental arch, thereby optimizing the orthodontic treatment plan.

[0089] In addition, the growth and development of the upper and lower jawbones are also major factors affecting the correction effect. Specifically, the growth and development characteristics of the human head are that the upper 1 / 3 of the head is basically completed at birth, and before the age of 10, the middle 1 / 3 of the face (maxilla) mainly develops, and after the age of 10, the lower 1 / 3 of the face (chin) mainly develops. Newborns and young children have a large forehead and a small chin, which is a typical feature of "baby face". As they grow older, the lower jaw develops as a whole, and the face gradually changes to that of an adult.

[0090] Currently, all manufacturers completely disregard whether the patient's mandible has fully developed, and completely ignore the patient information submitted by doctors. They design tooth arrangement according to adult standards, arranging teeth very neatly. As a result, as children grow older, their mandibles mature and enlarge, leading to an underbite, or the lower teeth push the upper teeth forward, causing many scattered gaps in the upper teeth. Even worse, some manufacturers close the growth gaps and primate gaps in children during the mixed dentition period, preventing permanent teeth from erupting smoothly.

[0091] The bioengine provided in this embodiment can forcibly incorporate growth and development analysis into the design process for patients under 16 years of age. Doctors must upload full-mouth axial radiographs and lateral cephalometric radiographs to measure the interdental space and perform CVS analysis on the 2nd, 3rd, and 4th cervical vertebrae. By measuring the full-mouth axial radiographs (X-rays showing all teeth, including unerupted permanent teeth), the width ratio between deciduous teeth and "successor permanent teeth" can be determined, thereby forcibly preserving growth space to prevent permanent teeth from failing to erupt smoothly due to misoperation or "ignorance" by the orthodontic plan designer. At the same time, based on the development of the cervical spine, a "preservation space" for mandibular growth and development is set. If the patient has completed development and presents a CVS4 stage or later, the design is carried out according to adult standards. If the patient presents a CVS3 stage or earlier, a 1-6mm gap is reserved in the sagittal direction between the maxilla and mandible, leaving space for the mandible to grow forward. The maxillary arch cannot actively narrow, so that the mandible is forced to "hold back" and cannot grow normally.

[0092] By comprehensively considering the morphology, positional relationship, and growth and development sequence of the upper and lower jaws using the above methods, the scientific validity and feasibility of the orthodontic plan can be further guaranteed, and the orthodontic effect can be greatly improved.

[0093] Besides oral structure information and basic physical information, braces materials and additional anchorage are also key influencing factors that need to be considered.

[0094] In terms of additional anchorage, it is usually used to assist in orthodontic treatment because the forces within the dental arch are balanced. For example, in case 1, the posterior teeth moving backward will inevitably exert force on the anterior teeth moving forward. Additional anchorage can use a third force to break this balance. Its first function is to prevent the anterior teeth from being passively moved forward due to reaction forces, such as the "sequential distalization" mentioned in example 1 above. In the anterior region of clear aligners, notches are cut in the aligners, or traction hooks are welded (built-in) to the brackets of braces. One end of the rubber band is hung on the additional anchorage, and the other end is hung on the front end of the aligner or the traction hook of the bracket, so that the teeth as a whole receive a backward force. Its second function is to actively apply force, such as actively hanging rubber bands to lower the teeth that need to be depressed; it can perform "intermaxillary traction", such as when the mandible is underdeveloped or the maxilla is overdeveloped, the upper and lower jaws can be pulled back alternately to inhibit the development of the maxilla while promoting the development of the mandible; it can also be used in conjunction with other "extraoral devices" to apply force to the entire jawbone when only resin clips are available.

[0095] Currently, all manufacturers do not include additional anchorage in their product design process, but they fabricate additional anchorage effects in the "animated demonstrations" delivered to doctors and patients. This causes doctors and patients to be deceived by false animations and unable to predict the real correction effect and result. In particular, in complex cases, the correction result differs greatly from the false animation.

[0096] Based on the above reasons, in this embodiment, based on the initial orthodontic plan, the target oral physical structure information and the target body basic information, the physical engine and biological engine are invoked to analyze and process the initial orthodontic plan, generate the target orthodontic plan and its corresponding risk warning information, and further include: determining whether additional anchorage is needed, determining the configuration parameters of the additional anchorage, the configuration parameters including the force application point, the force receiving point, the position and size of the rubber band and the tension spring.

[0097] This embodiment uses a bio-engine to select the location of additional anchorage, i.e., to select the "force application point" of the additional anchorage. The position of the braces traction hooks (hoops) can be set, i.e., the "force point" of the entire dental arch. The strength of the rubber bands can be selected (in orthodontics, rubber bands come in different sizes and produce different forces, which doctors can choose according to the patient's situation; "constant force springs" can also be used, which increase the strength by shortening the springs, offering a very high degree of freedom). This simulates the effect of real additional anchorage. If the simulation effect is not satisfactory, the position and size of the "force application point," "force point," and "rubber band and spring strength" can be modified to obtain a relatively realistic animation demonstration and product, so as to achieve a more ideal orthodontic result.

[0098] Regarding braces materials, the main difference lies in the choice of gutta-percha sheets. First-tier (high-end) brands typically manufacture their own gutta-percha sheets, using imported TPU raw materials and molding them domestically. These production lines are expensive and difficult to obtain the necessary qualifications for. Second- and third-tier manufacturers usually lack gutta-percha production lines, so they directly import finished products, which may be made of TPU or PET, etc., and are more expensive. The brands, materials, and thicknesses of the gutta-percha sheets used also vary. Other manufacturers mainly use domestically produced gutta-percha sheets or plastic sheets, which may be made of PC or PE, and are very inexpensive, costing only 1 / 16th or even less of the price of imported sheets. To diversify their products, the same manufacturer may use different brands, materials, and thicknesses of gutta-percha sheets and price their products accordingly to meet the needs of different customer groups. Currently, all domestic manufacturers use a particular foreign brand as their leader, and their tooth movement parameters are "imitated" from this leading brand. However, the contact lenses used differ significantly from those of leading brands. While the design parameters are consistent with foreign brands, the quality of the consumables used varies greatly, resulting in significant differences in the rate of force attenuation. This leads to different thresholds for the single-use movement volume corresponding to different braces materials. Secondly, while contact lenses have a certain degree of toughness and can be bent, they have poor extensibility. When manufactured into braces, due to their shape, they allow for significant overall deformation (bending) in the horizontal direction, but exhibit poor extensibility (stretching) in localized horizontal, sagittal, and vertical directions. Currently, none of the manufacturers design their braces based on the characteristics of the raw materials and the shape of the braces themselves. Therefore, when a group of teeth needs to be moved simultaneously, they often adopt a one-by-one approach, which is not only inefficient but also causes significant damage to the tooth roots, pulp nerves, alveolar bone, and cortical bone.

[0099] Based on the above reasons, in this embodiment of the invention, based on the initial orthodontic plan, the target oral physical structure information, and the target body basic information, the bioengine is invoked to analyze and process the initial orthodontic plan to generate the target orthodontic plan and its corresponding risk warning information. The method also includes modifying the initial orthodontic plan according to the characteristics of the orthodontic force and the characteristics of the braces. The braces characteristics include the characteristics of the braces material and the shape of the braces. The orthodontic force is used to move a group of teeth in a direction close to the same direction, and the threshold corresponding to the risk information warning can be dynamically adjusted according to the orthodontic force.

[0100] Specifically, each manufacturer can conduct actual tests on the various specifications of braces they use to determine the design specifications and incorporate them into the orthodontic bioengine. When the actual movement amount corresponding to the orthodontic plan exceeds the parameter specifications, the orthodontic bioengine will issue an alarm to alert and prevent unnecessary problems from occurring. These unnecessary problems include, but are not limited to, the invisible braces being unable to withstand deformation and causing local breakage, or the braces causing the teeth to not move properly due to the orthodontic force, or the braces themselves popping out of the dental arch.

[0101] Specifically, the force exerted by invisible braces on the entire dental arch (elasticity generated by deformation) is gentler, which better aligns with the description of orthodontic force in "Orthodontics": orthodontic force is a gentle and continuous force. For example, in the arch expansion movement described in "Example 2," although all 14 teeth of the dental arch are horizontally expanded and subjected to force, theoretically, the corrective force of the braces should be insufficient when moving all 14 teeth simultaneously. However, in practice, due to the characteristics of the braces and the shape of the adhesive strips, all 14 teeth can be horizontally expanded, resulting in significant effects. Furthermore, the overall deformation of the dental arch corresponds to the characteristics of "orthodontic force" in "Orthodontics": if "orthodontic force" is like moving a single seedling in a flower bed, "orthodontic force" applies force to all seedlings, causing the flower bed to deform and shift, thereby achieving a safer seedling, more balanced force, and more stable results. The concept of "orthodontic force" is incorporated into the orthodontic bioengine: when a group of teeth (3 or more) moves in the same direction, the risk level can be altered. For example, in "Example 1," molar distalization, or passive anterior movement of the anterior teeth due to posterior tooth posteriorization, when the passive movement reaches a threshold, the risk percentage can be increased or decreased based on other patient data (age, lip muscle strength, etc.). Vertically, due to the aforementioned reasons, the local elasticity of the braces is extremely poor, resulting in a strong and direct orthodontic force on the affected area. In malocclusion, there is a condition called "deep overbite," where the upper anterior teeth obscure the lower anterior teeth, or the lower anterior teeth bite into the upper palate (leading to occlusal trauma). If we press down the lower front teeth one by one, although it may seem that the deep overbite has been corrected, it will cause great damage to the tooth roots and alveolar bone. This is because the vertical force expressed locally is not a "gentle and continuous" orthodontic force. Inserting the tooth roots into the thin alveolar bone and cortical bone will only cause root resorption, damage and necrosis of the dental pulp nerve, or at the same time cause cortical bone cracking and fenestration. However, if we directly control a group of teeth vertically, we can change the overall shape of the alveolar bone. Although more teeth are moved at the same time, the force is gentle and continuous, and the effect is more ideal.

[0102] It should also be noted that the bio-engine can determine the frequency of braces replacement based on the way the teeth move. There are different replacements for overall movement (translation) and tilting movement (forward and reverse).

[0103] In this embodiment of the invention, dynamically updating the digital tooth model includes: marking the movement sequence of all actual movements; marking the pain level of all actual movements according to a pain threshold; dynamically displaying all marked actual movements using motion curves; and dynamically updating the digital tooth model according to the motion curves to generate a digital dynamic orthodontic model.

[0104] Tooth movement paths are usually not straight lines, but curves. This prevents crowded teeth from colliding, and curves are the best path to avoid other teeth. Currently, all orthodontic solutions designed by manufacturers can only show that the teeth are "moving" and "moving," but the movement path cannot be displayed. Crowded teeth are easily "stuck" due to "straight-line movement," causing orthodontic failure midway. When reviewing the animation, doctors and patients can only watch it repeatedly with their eyes "without blinking," making it very difficult to find problems.

[0105] The physics engine provided in this embodiment can display the position of each tooth movement as a numbered "point". Points that move multiple times can be superimposed and displayed as "curved line segments" to view the trajectory of the continuous movement of the tooth. This can avoid linear movement caused by design or inspection oversights, avoid excessive contact between the tooth and the bone cortex, and avoid collisions and jamming between teeth and crowded teeth.

[0106] In addition, this embodiment also marks the pain level according to the actual movement amount. If the actual movement amount is less than the first movement threshold, it is a painless zone. If it exceeds the first movement threshold but is less than the second movement threshold, it is determined to be a level one pain zone. If it exceeds the second movement threshold but is less than the third movement threshold, it is determined to be a level two pain zone. If it exceeds the third movement threshold but is less than the fourth movement threshold, it is determined to be a level three pain zone. Each movement threshold can be set to a fixed value or set according to the actual situation. Specifically, it is set according to the patient's pain test results. By showing the patient the pain level corresponding to the orthodontic plan, the patient can determine whether the orthodontic process is abnormal based on the match between the pain level and the actual pain level during the orthodontic process.

[0107] This embodiment reflects the pain level by the actual amount of tooth movement, using the patient's own pain perception as an auxiliary examination method. This avoids the inaccuracies of existing visual assessments. Moreover, patients have self-awareness and self-checking ability each time they change braces, eliminating the need for repeated visits to the hospital for examination. When the pain level felt by the patient differs from the marked pain level, the patient can proactively conduct self-checks on key areas, checking for cracks in the clear aligners, loose attachments, or improper fit of the aligners, etc. If such problems occur, the patient can promptly return for a follow-up visit, explain the situation to the doctor for a focused examination, or use a "bite stick" to specifically intervene and stimulate the affected area, allowing the orthodontic force to be more effective. This can significantly reduce the chance of patient failure during orthodontic treatment and greatly improve the cooperation between doctors and patients.

[0108] In summary, this invention provides a teeth straightening method based on a physics engine and a biological engine. It considers oral physical structure information, basic body information, and the teeth straightening plan to establish a physics engine and a biological engine; acquires patient information of the target patient, including target oral physical structure information and target basic body information; establishes a digital teeth model based on the target oral structure information; determines an initial teeth straightening plan; and, based on the initial teeth straightening plan, the target oral physical structure information, and the target basic body information, invokes the biological engine to analyze and process the initial teeth straightening plan, generating a target teeth straightening plan and its corresponding risk warning information, and dynamically updating the digital teeth model. This invention provides physical and biological constraints for the formulation of teeth straightening plans by constructing a biological engine, enabling personalized and precise straightening plans. Through dynamic updates and risk warning information, it helps patients achieve better teeth straightening results.

[0109] Example 2

[0110] like Figure 9As shown, this embodiment of the invention provides a teeth straightening system based on a physics engine and a bioengine, comprising: a physics engine construction module for constructing two three-dimensional spatial coordinate systems, incorporating the upper and lower jaw teeth respectively, assigning movement attributes to each tooth, and generating a physics engine, wherein the teeth within the three-dimensional spatial coordinate systems influence each other and the two three-dimensional spatial coordinate systems influence each other; a bioengine construction module for establishing a physics engine and a bioengine considering oral physical structure information, basic body information, and teeth straightening plans; a data acquisition module for acquiring patient information of the target patient, including target oral physical structure information and target basic body information, and establishing a digital tooth model based on the target oral structure information; and a plan generation module for determining a teeth straightening plan, and based on the teeth straightening plan, target oral physical structure information, and target basic body information, calling the physics engine and bioengine to analyze and process the teeth straightening plan, generating the target teeth straightening plan and its corresponding prompt information, and dynamically updating the digital tooth model.

[0111] It should be understood that the orthodontic system based on a physics engine and a biological engine provided in this embodiment of the invention is based on the same inventive concept as the orthodontic system based on a physics engine and a biological engine provided in the above embodiments. For more specific working principles of each module in this embodiment of the invention, please refer to the above embodiments, which will not be repeated in this embodiment of the invention.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A teeth straightening method based on a physics engine and a biological engine, characterized in that, include: Two three-dimensional spatial coordinate systems are constructed, and the upper and lower teeth are included in them respectively. Each tooth is assigned a movement attribute to generate a physics engine. The teeth in the three-dimensional spatial coordinate systems affect each other, and the two three-dimensional spatial coordinate systems also affect each other. A physical engine and a biological engine are established, taking into account oral physical structure information, basic body information, and orthodontic treatment plans. Obtain patient information of the target patient, including target oral physical structure information and target basic physical information; A dental orthodontic plan is determined. Based on the dental orthodontic plan, the target oral physical structure information, and the target body basic information, the physical engine and biological engine are invoked to analyze and process the dental orthodontic plan, generate the target dental orthodontic plan and its corresponding prompt information, and dynamically update the digital dental model.

2. The orthodontic method based on a physics engine and a biological engine according to claim 1, characterized in that, The target oral structure information includes alveolar bone density, alveolar bone width, cortical bone density, cortical bone width, additional anchorage, special alveolar bone, maxillary and mandibular bone structure information, and maxillary and mandibular bone growth and development information; the orthodontic plan includes the expected movement amount and braces characteristics, and the expected movement amount includes the movement distance and movement direction; the target physical information includes age, dental implants, dentures, and medical history.

3. The orthodontic method based on a physics engine and a biological engine according to claim 2, characterized in that, Based on the orthodontic plan, target oral physical structure information, and target body basic information, the physical engine and biological engine are invoked to analyze and process the orthodontic plan, generating the target orthodontic plan and its corresponding prompts, including: The vitality value of the teeth is determined based on the age, dental implants, and dentures, and the first basic movement influence coefficient is determined based on the vitality value; The health value of the teeth is determined based on the medical history, and the second basic movement influence coefficient is determined based on the health value of the teeth. The basic influence coefficient is determined based on the first basic movement influence coefficient and the second movement influence coefficient.

4. The orthodontic method based on a physics engine and a biological engine according to claim 3, characterized in that, Based on the orthodontic plan, target oral physical structure information, and target body basic information, the physical engine and biological engine are invoked to analyze and process the orthodontic plan, generating the target orthodontic plan and its corresponding prompts, and also including: The first movement influence coefficient is determined based on the alveolar bone density, and the greater the alveolar bone density, the greater the first movement influence coefficient. The first actual movement amount is determined based on the basic influence coefficient, the first movement amount influence coefficient, and the expected movement amount. When the first actual movement amount is greater than the alveolar bone width threshold, the second movement amount influence coefficient is determined based on the bone cortex density. The greater the bone cortex density, the greater the second movement amount influence coefficient. The second actual movement amount is determined based on the basic influence coefficient, the second movement amount influence coefficient, and the expected movement amount; When the second actual movement exceeds the bone cortical width threshold, a risk warning message is generated.

5. A teeth straightening method based on a physics engine and a biological engine according to claim 2, characterized in that, Based on the initial orthodontic plan, target oral physical structure information, and target body basic information, the bioengine is invoked to analyze and process the initial orthodontic plan, generating the target orthodontic plan and its corresponding risk warning information, and also including: Determine whether additional support is needed, and determine the configuration parameters of the additional support, including the location of the force application point, the position of the force application point, and the magnitude of the tensile force.

6. A teeth straightening method based on a physics engine and a biological engine according to claim 4, characterized in that, Based on the aforementioned orthodontic plan, target oral physical structure information, and target body basic information, the bioengine is invoked to analyze and process the initial orthodontic plan, generating the target orthodontic plan and its corresponding risk warning information, and further including: The special alveolar bone refers to the alveolar bone corresponding to the wisdom tooth extraction position, the extraction orthodontic position, and the missing tooth position. When the special alveolar bone exists, the bone density of the special alveolar bone is determined according to the extraction and / or loss time of the wisdom tooth extraction position, the extraction orthodontic position, and the missing tooth position. The longer the extraction time and / or loss time, the greater the bone density of the special alveolar bone. The influence coefficient of the third movement amount is determined based on the bone density of the specific tooth; the greater the bone density of the specific tooth, the greater the influence coefficient of the third movement amount.

7. A teeth straightening method based on a physics engine and a biological engine according to claim 2, characterized in that, Based on the initial orthodontic plan, target oral physical structure information, and target body basic information, the bioengine is invoked to analyze and process the initial orthodontic plan, generating the target orthodontic plan and its corresponding risk warning information, and also including: Based on the structural information of the maxilla and mandible, determine whether there are structural abnormalities in the maxilla and mandible. If there are structural abnormalities, determine the arch of the dental arch after the movement based on the actual movement of all teeth, and determine the position of the mandible after the movement based on the arch of the dental arch. Based on the growth and development information of the upper and lower jaws, it is determined whether the upper and lower dental arches have completed tooth replacement. If the growth and development have not yet ended, it is determined whether the orthodontic plan has room for tooth replacement. If the room for tooth replacement is insufficient in the orthodontic plan, a risk warning message is generated. The constraint conditions of the bone resorption area are retrieved to determine whether the lower teeth in the orthodontic plan have been moved to the bone resorption area. When the lower teeth are moved to the bone resorption area, a risk warning message is generated. The bone resorption area is the area that is gradually absorbed with age, that is, the area below the lower anterior teeth and above the chin.

8. A teeth straightening method based on a physics engine and a biological engine according to claim 3, characterized in that, Based on the initial orthodontic plan, target oral physical structure information, and target body basic information, the bioengine is invoked to analyze and process the initial orthodontic plan, generating the target orthodontic plan and its corresponding risk warning information, and also including: The initial orthodontic treatment plan is modified based on the characteristics of the orthodontic force and the characteristics of the braces, including the characteristics of the braces material and the characteristics of the braces shape. The orthodontic force is used to move a group of teeth in a direction that is close to the same direction. The threshold corresponding to the risk information prompt can be dynamically adjusted according to the orthodontic force.

9. A teeth straightening method based on a physics engine and a biological engine according to claim 1, characterized in that, Dynamically updating the digital tooth model includes: Mark all actual movement amounts and movement sequences, and mark the pain level of all actual movement amounts, with the larger the actual movement amount, the higher the pain level; The motion curve dynamically displays all actual movements after the marker is marked. The digital tooth model is dynamically updated based on the motion curve to generate a digital dynamic orthodontic model.

10. A dental orthodontic system based on a physics engine and a biological engine, characterized in that, include: The physics engine construction module is used to construct two three-dimensional spatial coordinate systems, incorporating the upper and lower jaw teeth respectively, assigning movement attributes to each tooth, and generating a physics engine. The teeth within the three-dimensional spatial coordinate systems influence each other, and the two three-dimensional spatial coordinate systems also influence each other. The bioengine building module is used to build physical and biological engines by taking into account oral physical structure information, basic body information, and orthodontic plans. The data acquisition module is used to acquire patient information of the target patient, including target oral physical structure information and target basic body information, and to establish a digital tooth model based on the target oral structure information; The solution generation module is used to determine the orthodontic solution. Based on the orthodontic solution, the target oral physical structure information and the target body basic information, it calls the physical engine and biological engine to analyze and process the orthodontic solution, generate the target orthodontic solution and its corresponding prompt information, and dynamically update the digital tooth model.

Images