A biomimetic multi-membrane combined membrane type invisible corrector and a design and preparation method thereof

Abstract

The application discloses a bionic multi-membrane combined membrane piece type contact lens corrector and a design and preparation method, wherein the design and preparation method of the bionic multi-membrane combined membrane piece type contact lens corrector comprises the following steps: manufacturing a digital model of an initial state of teeth of a patient; manufacturing a digital tooth arrangement model of a target position of the teeth of the patient; designing grouping of a combined step of tooth movement; 3D printing a resin tooth model; and manufacturing the bionic combined membrane piece contact lens corrector by using a hot pressing technology.The product prepared by the application is more accurate and more continuous in force applied to the teeth, is in line with the alveolar bone reconstruction rule during orthodontic tooth movement, is higher in tooth movement efficiency, and is more comfortable for the patient to feel, and has the advantages of improving the defects of the traditional membrane piece treatment, such as too large force of a tooth movement corrector, time of force application not in line with a time period of alveolar bone reconstruction, obvious tooth pain of the patient, and easy to cause gum atrophy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tooth correction, in particular to a bionic multi-membrane combined membrane piece type invisible orthodontic appliance and a design and preparation method. BACKGROUND

[0002] Dental malformation is a common disease in oral medicine, and the bracketless invisible orthodontic appliance is a popular method for treating dental malformation. Most of the bracketless invisible orthodontic appliances on the market are first manufactured by the factory according to the digital model of the patient, then a professional technician uses professional tooth arrangement software to arrange the target tooth position according to the ideal position and shape angle of human teeth, and then the tooth movement distance and angle are arranged step by step to form a sequence of simulated digital tooth models; then the sequence of digital tooth model files is imported into a 3D printer to print out a sequence of resin models, and finally the invisible orthodontic appliance is manufactured on each resin model using a high-molecular material membrane through a hot pressing method.

[0003] At present, most domestic and foreign oral appliance manufacturers are seeking a membrane that combines elasticity and rigidity to adapt to different dental malformation patients and each stage of the correction process. Most products use a single membrane to move teeth at equal distances; a few manufacturers divide the entire treatment process into 3-5 stages and use the same 1-2 membranes to move teeth at equal distances during each stage. Since the mainstream products in the current orthodontic clinic use a single membrane to move teeth at equal distances for invisible orthodontic treatment, they all ignore the basic biological law of 7-10 days of bone resorption and 2-3 weeks of bone formation during alveolar bone remodeling, continuously change the membrane to move the teeth, and thus the alveolar bone only has bone resorption without a sufficient bone formation process, resulting in many drawbacks. For example, it can easily cause tooth pain, gum atrophy, bone fenestration, and bone cracking in patients. In recent years, biomechanical studies have also confirmed that the invisible orthodontic appliances of most manufacturers currently release local intermittent gravity, while oral orthodontics advocates continuous light force, which is more conducive to tooth movement and alveolar bone remodeling. Therefore, according to the biological principle of tooth movement and alveolar bone remodeling in orthodontic treatment, i.e., one tooth movement cycle usually consists of 7-10 days of bone resorption and 2-3 weeks of bone formation, a bionic combined membrane orthodontic appliance is designed and invented to achieve a fast and healthy invisible orthodontic product and a design and preparation method. SUMMARY

[0004] The present application aims to provide a bionic multi-membrane combined membrane piece type invisible orthodontic appliance and a design and preparation method to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a design and preparation method of a bionic multi-membrane combined membrane piece type invisible orthodontic appliance, comprising the following steps:

[0006] Step S1: making a digital model of the initial state of the patient's teeth;

[0007] Step S2: making a digital model of the target position of the patient's teeth;

[0008] After making the digital model, the initial state digital model of the patient's teeth is arranged according to the treatment plan to form a target position digital model;

[0009] Step S3: designing the grouping design of the tooth movement combination steps;

[0010] In the tooth arrangement software, the tooth movement from the initial position to the target position is divided into several combination steps, each combination step forms a tooth movement cycle, based on the alveolar bone remodeling law in each tooth movement cycle of the human body, the tooth movement is divided into a tooth movement starting period, a tooth rapid movement period and a tooth position stabilization period, and different elastic modulus and thickness of the film are provided through the three periods and the multi-film combination;

[0011] Step S4: 3D printing of resin tooth model;

[0012] The tooth model file of the step-by-step tooth movement is transmitted to the 3D printer, and the resin model of the tooth movement is sequentially printed out;

[0013] Step S5: manufacturing a bionic combination film invisible aligner by hot pressing technology;

[0014] By selecting invisible aligning resin films of different elasticity, different materials and different thicknesses by hot pressing technology, a bionic multi-film combined invisible aligner is manufactured.

[0015] Preferably, the tooth movement cycle in step S3 is a cycle formed by 7-10 days of osteoclast and 2-3 weeks of osteogenesis.

[0016] Preferably, in step S3, the tooth movement starting period is a tooth movement starting period using super-elastic film with ultra-light force; the tooth rapid movement period is a tooth rapid movement period using high-elastic film with light force; and the tooth position stabilization period is a tooth position stabilization period using high-elastic modulus film to stabilize the tooth position or allowing the tooth to have a small amount of micro-motion.

[0017] Preferably, the film thickness of the invisible aligning resin film in step S5 is 0.3-1.0 mm, and the material of the invisible aligning resin film is TPU, PETG or a mixture of the two.

[0018] Preferably, in step S3, for the teeth that need to be moved as a whole, each combination step represents a tooth movement cycle, the initial movement period is a tooth movement starting period using super-elastic film with ultra-light force, and the tooth movement step is 0.15-0.20 mm.

[0019] The middle stage of movement is a light force fast tooth movement stage, using an elastic film to move the teeth fast with light force, the tooth movement step is 0.20-0.35 mm, and larger step movement of the teeth can be realized, or the teeth are straightened faster from the inclined position;

[0020] The final stage of movement is to use a low-elasticity film to stabilize the tooth movement effect, so that the alveolar bone has enough osteogenesis time, thereby realizing faster and healthier invisible correction.

[0021] Preferably, for the teeth needing to be moved in an inclined manner, in the tooth arrangement software, a plurality of combined steps of tooth movement are designed according to different tooth inclination degrees of the patient, and each combined straightening tooth movement step is also divided into three stages, and the tooth straightening movement steps are as follows:

[0022] In the initial stage of tooth inclined movement, an ultra-elastic invisible correction film is used to make the teeth receive a relatively light force, and 1-2 degrees of tooth inclined movement are generated;

[0023] In the middle stage of movement, a medium-elasticity correction film is used to straighten the teeth by 2-3 degrees, and the teeth are straightened fast, and 2-3 films can be added according to the need to realize continuous light straightening movement of the teeth;

[0024] In the final stage of movement, a higher-elasticity modulus invisible correction film is used to fine-tune and fix the crown and root angle, and fine adjustment is made to the final position of the teeth.

[0025] Preferably, the step S4 directly prints the combined mechanical film designed on the digital model according to the biological principle of tooth and periodontal reconstruction.

[0026] A bionic multi-film combined film type invisible corrector comprises the bionic multi-film combined invisible corrector manufactured above.

[0027] Compared with the prior art, the bionic multi-film combined film type invisible corrector has the beneficial effects that:

[0028] The bionic multi-film combined film type invisible corrector has the advantages of fast and accurate tooth movement, more comfortable feeling of the patient, and healthier periodontal tissue.

[0029] The product manufactured by the method of the application can be directly designed by the factory medical department to select invisible films with matching physicochemical indexes for invisible correction.

[0030] Therefore, the oral doctor using the bionic combined film invisible corrector of the application has simpler operation, the patient has more efficient and accurate tooth movement, and the patient has more comfortable feeling. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The figure is a structural schematic diagram of the application.

[0032] Figure 2 Fig. 1 shows the schematic diagram of the tooth inclination state of the upper central incisor in the lip inclination state according to the present application;

[0033] Figure 3 Fig. 2 shows the schematic diagram of the upper central incisor from the lip inclination state to the normal position according to the present application;

[0034] Figure 4 Fig. 1 shows the schematic diagram of the tooth inclination state of the upper central incisor in the lip inclination state according to the present application. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0036] Please refer to Figures 1-4 The present application provides a technical solution: a design and preparation method of a bionic multi-membrane combined membrane type invisible corrector, comprising the following steps:

[0037] Step S1: making a digital model of the initial state of the patient's teeth;

[0038] Step S2: making a digital model of the target position of the patient's teeth;

[0039] Making a digital model, then arranging the teeth according to the treatment target, making a digital model of the target position of the initial state of the patient's teeth according to the treatment plan;

[0040] Step S3: designing the grouping design of the tooth movement combination steps;

[0041] When designing the invisible correction tooth movement scheme in the tooth arrangement software, according to the biological cycle rule of 7-10 days of osteoclast and 2-3 weeks of osteogenesis in the process of alveolar bone histology reconstruction during tooth correction, and following the tooth stress characteristics in the early osteoclast, peak osteoclast and osteogenesis period, the bionic combined membrane invisible orthodontic product is designed and invented, and the specific design method is as follows: in the tooth arrangement software, the tooth movement from the initial position to the target position is divided into several combination steps, each combination step forms a tooth movement cycle, based on the alveolar bone reconstruction rule in each tooth movement cycle of the human body, in this cycle, the tooth movement is divided into tooth movement start period (early osteoclast), tooth rapid movement period (peak osteoclast) and tooth position stable period (osteogenesis), and different elastic modulus and thickness of the membrane are provided through the three periods of multi-membrane combination;

[0042] For the correction of tilted teeth, the tooth straightening movement process is also designed as a combination step, and the specific steps are as follows: that is, in the initial movement stage, the tooth is straightened by 1-2 degrees with a light force of an ultra-high elastic film, in the middle movement stage, the tooth is straightened by 2-3 degrees with a high elastic film (according to the need, 1-3 films can be designed in succession), and in the final movement stage, the tooth position is stabilized or only has a small amount of micro-motion with a low elastic (high elastic modulus) film. In each tooth movement cycle, the three films with different elastic moduli are selected and combined for use, so as to form a bionic combination film for fine, rapid and healthy tooth movement.

[0043] The application can realize that the appliance delivers a continuous light force, which is more beneficial to periodontal tissue remodeling, and makes the tooth move quickly, and at the same time, the tooth has a sufficient stabilization period after moving, which is more in line with the biological law and cycle of osteoclast and osteoblast in the alveolar bone remodeling process, thereby ensuring the health of periodontal tissue in the invisible orthodontic process.

[0044] Step S4: 3D printing of a resin tooth model;

[0045] The tooth model file of the tooth step-by-step movement is transmitted to a 3D printer, and the resin model of the tooth movement is sequentially printed out.

[0046] Step S5: production of a bionic combination film invisible orthodontic appliance by hot pressing technology;

[0047] By selecting invisible orthodontic resin films (film thickness 0.3-1.0 mm) with different elasticities by hot pressing technology, the film material can be TPU (or PU), PETG (or PCTG) or a mixture of the two, or other similar performance elastic films, to control the deformation amount of the film and manufacture a sequence invisible orthodontic appliance.

[0048] The bionic combination film invisible orthodontic appliance manufactured by the method has the characteristics of multi-film combination tooth movement, including multiple types, multiple performances and multiple film combinations. The product has the advantages of more accurate and more continuous force on the teeth, higher tooth movement efficiency and more comfortable feeling of the patient; improves the disadvantages of the traditional single film or two film fixed step distance force throughout the course, which does not conform to the biological law of alveolar bone remodeling, avoids the disadvantages of too large tooth movement force of the invisible orthodontic appliance, disruption of the bone remodeling cycle, obvious tooth pain of the patient and easy to cause gum atrophy, etc.

[0049] In the application, the tooth movement starting period in step S3 is the tooth movement starting period with an ultra-light force of an ultra-elastic film; the tooth rapid movement period is the tooth rapid movement period with a light force of a high elastic film; and the tooth position stabilization period is the tooth position stabilization period with a high elastic modulus film or a small amount of micro-motion of the tooth.

[0050] In the present application, the film thickness of the step S5 is 0.3-1.0 mm, and the material of the film is TPU, PETG or a mixture of the two.

[0051] In the present application, for the teeth needing overall movement, each combination step represents a tooth movement cycle, the initial movement is the start tooth movement period, the super light force high elasticity film is used to start the tooth movement period with a super light force (the force applied to the front teeth is less than 40-100 g, and the force applied to the molar is 100-200 g), and the tooth movement step is 0.15-0.20 mm.

[0052] The middle movement is the light force rapid tooth movement period, the elastic film is used to move the tooth with a light force (the force applied to the front teeth is 100-200 g, and the force applied to the back teeth is 200-350 g), and the tooth movement step is 0.20-0.35 mm, which can achieve larger step movement of the tooth or faster straightening of the tooth from the inclined position.

[0053] The final movement is the use of low elasticity film (1-3 light force films are designed according to the need to improve the tooth movement efficiency), which stabilizes the tooth movement effect and provides sufficient bone formation time for the alveolar bone, so as to achieve faster and healthier invisible correction; the tooth position is stabilized or slightly moved in the final movement, so as to achieve faster and healthier invisible correction, which can move the tooth by 0.7-0.8 mm on average within 3-4 weeks, reaching the speed of 0.8 mm of fixed orthodontics within 3-4 weeks.

[0054] In the present application, for the teeth needing inclined movement, a plurality of tooth movement combination steps are designed in the tooth arrangement software according to the different inclination of the patient's teeth, and each straightening tooth movement combination is divided into three periods, and the tooth straightening movement steps are as follows:

[0055] In the initial tooth inclined movement, the super-elastic invisible correction film is used to make the tooth receive a relatively light force and produce 1-2 degrees of tooth inclined movement;

[0056] In the middle movement, the medium-elasticity correction film is used to straighten the tooth by 2-3 degrees, and the tooth is straightened quickly, and 2-3 films can be added according to the need to realize the straightening movement of the tooth with continuous light force.

[0057] In the final movement, the invisible correction film with higher elastic modulus is used to fine-tune and fix the crown and root angle, and to make fine adjustment to the final position of the tooth.

[0058] In the present application, the step S4 directly prints the combination mechanical film designed on the digital model according to the biological principle of tooth and periodontal reconstruction.

[0059] A bionic multi-membrane combined lens type invisible corrector, comprising the bionic multi-membrane combined invisible corrector manufactured above. Embodiments

[0060] The product and method for moving and aligning teeth by a bionic combined lens invisible transparent corrector disclosed in the present application, the design and production step flow chart comprises the following steps:

[0061] Step S1: producing a digitalized tooth alignment model of a patient;

[0062] First, a digitalized model is produced, and then the teeth are aligned according to the treatment target, and the original model of the patient is made into a digitalized tooth alignment model according to the treatment plan;

[0063] Step S2: tooth movement step design;

[0064] Step 2-1: for teeth that need to be moved as a whole, the combined lens corrector of the present application, each combined step represents a tooth movement cycle, the initial movement period is the start-up tooth movement period, the ultra-light force high-elasticity lens is used, the tooth movement step is 0.15-0.20 mm, the middle movement period is the light force rapid tooth movement period, the elastic lens is used to move the teeth rapidly with light force, the tooth movement step is 0.20-0.35 mm, the teeth can be moved with a larger step, or the teeth can be straightened more quickly from the inclined position, this stage may be one lens, or 2-3 lenses, the light force rapid tooth movement is continued, which depends on the specific situation of the clinical case, the final movement period is the use of low-elasticity (high-elasticity modulus) lens, which stabilizes the tooth movement effect, so as to achieve faster and healthier invisible correction; the present application can move the teeth by 0.7-0.8 mm on average within 3-4 weeks, which reaches the speed of 0.8 mm of fixed orthodontics within 3-4 weeks;

[0065] Step 2-2: for teeth that need to be moved obliquely, in the tooth alignment software, a plurality of tooth movement combined steps are designed according to the different tooth inclination of the patient, and the movement of the straightened teeth is also combined into three periods, the tooth straightening movement steps are as follows: in the initial tooth oblique movement period, the super-elastic invisible correction lens is used, so that the tooth receives a relatively light force, and the tooth is moved obliquely by 1-2 degrees, in the middle movement period, the medium-elasticity correction lens is used to straighten the tooth by 2-3 degrees, the tooth is straightened rapidly, 2-3 lenses can be added according to the need in this period to realize the continuous light straightening movement of the tooth, in the final movement period, the invisible correction lens with higher elastic modulus is used to fine-tune and fix the angle of the tooth crown and root, and the final position of the tooth is finely adjusted;

[0066] Step S3: 3D printing of resin tooth model;

[0067] The tooth model file of the tooth movement step is transmitted to the 3D printer, and the resin model of the tooth movement is sequentially printed out;

[0068] Step S4: In the hot pressing technology, the bionic combined film lens invisible correction device is manufactured by selecting invisible correction resin films with different elasticity (film thickness 0.3-1.0 mm), and the film material can be TPU (or PU), PETG (or PCTG) or a mixture of the two, or other similar elastic films, to control the deformation of the film.

[0069] The bionic combined film lens invisible correction device manufactured by the method has the characteristics of moving teeth by multiple films, including multiple types, multiple performances and multiple film combinations, and has the advantages of more accurate and more continuous force on teeth, higher tooth movement efficiency and more comfortable feeling of patients; the disadvantages of traditional single film fixed step force in the whole treatment course are improved, and the disadvantages such as too large tooth movement force of the invisible correction device, obvious tooth pain of the patient, reduced bone remodeling speed and easy to cause gum atrophy are avoided. Embodiment

[0070] The product and manufacturing method for moving and aligning teeth by the bionic combined film lens invisible correction device disclosed by the application include the following steps in the design and manufacturing step flow chart:

[0071] Step S1: manufacturing a digitalized tooth model of the patient;

[0072] First, a digitalized model is manufactured, and then the teeth are aligned according to the correction target, and the original model of the patient is made into a digitalized model for tooth alignment according to the treatment plan;

[0073] Step S2: tooth movement step design;

[0074] Step 2-1: for the teeth that need to be moved as a whole, the combined film lens correction device of the application represents a tooth movement cycle for each combined step, the initial movement period is the start tooth movement period, the ultra-light force high-elasticity film is used, the tooth movement step is 0.15-0.20 mm, the middle movement period is the light force rapid tooth movement period, the elastic film is used to move the teeth rapidly with light force, the tooth movement step is 0.20-0.35 mm, the teeth can be moved with a larger step, or the teeth can be straightened more quickly from the inclined position, this stage can be one film, or 2-3 films, the light force rapid tooth movement is continued, which depends on the specific situation of the clinical case; the end movement period is to use the low-elasticity (high-elasticity modulus) film, to stabilize the tooth movement effect, to make the alveolar bone have enough bone formation time, so as to realize faster and healthier invisible correction; the application can move the teeth by 0.7-0.8 mm on average within 3-4 weeks, which reaches the speed of moving the teeth by 0.8 mm on average within 3-4 weeks of fixed orthodontics;

[0075] Step 2-2, for the teeth needing to be moved obliquely, in the tooth arrangement software, a plurality of combination steps of tooth movement are designed according to different tooth oblique degrees of the patient, and each combination of tooth movement is divided into three stages, and the tooth movement steps are as follows: in the initial stage of tooth oblique movement, the tooth is subjected to a relatively slight force by using a super-elastic invisible orthodontic film piece, and a tooth oblique movement of 1-2 degrees is generated, in the middle stage of movement, the tooth is straightened by 2-3 degrees by using a medium-elastic orthodontic film piece, the tooth is quickly straightened, the number of film pieces can be increased by 2-3 according to the need, and the tooth is continuously moved by a slight force to achieve the straightening of the tooth, and in the final stage of movement, the tooth is fine-tuned and fixed by using a high-elasticity modulus invisible orthodontic film piece, and the final position of the tooth is fine-tuned and fixed.

[0076] Step S3: According to the biological principle of tooth periodontal reconstruction, the combination mechanical film piece designed on the digital model is directly printed, and the obtained 3D transparent tooth set of the combination treatment can be directly used for patient treatment, that is, the digital 3D transparent tooth set appliance can be directly printed.

[0077] The application follows the tooth stress characteristics of the early osteoclast, the peak osteoclast and the osteogenesis period, designs the bionic combination film piece product to realize the product and the preparation method of the invisible orthodontic product of rapid and healthy correction, divides the tooth movement into a tooth starting period, a tooth rapid movement period and a tooth position stabilization period in each tooth movement period of osteoclast and osteogenesis, and specifically divides the movement into a tooth movement period of a super-high-elasticity film piece and a super-light force in the initial movement period, a tooth movement period of a high-elasticity film piece and a light force in the middle movement period (1-3 light film pieces are designed according to the need to improve the tooth movement efficiency), and a tooth position stabilization period of a low-elasticity (high-elasticity modulus) film piece in the final movement period, different elastic modulus and thickness film pieces are arranged through three periods and multiple film combinations, so that the bionic combination film piece invisible correction appliance is made, the tooth can be continuously and quickly moved by a slight force, and the biological law of alveolar bone reconstruction of orthodontic tooth movement is met.

[0078] The application can make the correction appliance transmit a continuous slight force, is more beneficial to periodontal health, and has sufficient alveolar bone osteogenesis time, so that the tooth can be moved more quickly and healthily.

[0079] The tooth model file of step-by-step tooth movement is transmitted to a 3D printer, and a resin model of tooth movement is sequentially printed out; by selecting different elastic invisible correction resin films (film thickness 0.3-1.0 mm) through a hot pressing technology, the film material can be TPU (or PU), PETG (or PCTG) or a mixture of the two, but is not limited to the above-mentioned materials, by selecting a plurality of elastic modulus films, a bionic multi-film combined invisible corrector is manufactured; the bionic combined film invisible corrector manufactured according to the digital tooth arrangement design has the advantages of continuous light force generated by the corrector, healthier periodontal tissue, faster tooth movement speed, and more in line with the biological laws of alveolar bone remodeling; the product obtained by the method comprises a bionic multi-film combined product with multiple types and multiple performances; the product exerts more accurate and continuous force on the teeth, in line with the biological principles of bone remodeling of alveolar bone 7-10 days of osteoclast and 2-3 weeks of osteogenesis during orthodontic tooth movement, compared with the prior art, the method has the advantages of fast and safe tooth movement, more comfortable patient experience, etc., the product manufactured by the method can be designed by the factory medical department using tooth arrangement software, or the medical institution can directly design the combined film in the clinical tooth movement process of each step in the whole invisible correction period using tooth arrangement software, and the resin film with matching physical and chemical indicators is used to produce the combined film corrector, therefore, the bionic combined film invisible corrector is simple to wear, more comfortable, but more efficient, accurate and healthy in tooth movement.

[0080] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, although the embodiments of the application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the application, the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A method for designing and fabricating a biomimetic multi-membrane composite diaphragm invisible orthodontic device, characterized in that: It comprises the following steps: Step S1: making a digital model of the initial state of the patient's teeth; Step S2: making a digital model of the target position of the patient's teeth; Making a digital model, then arranging the teeth according to the treatment target, and arranging the teeth of the initial state digital model of the patient according to the treatment plan to make a digital model of the target position; Step S3: designing the grouping design of the tooth movement combination step; In the tooth arrangement software, the tooth movement from the initial position to the target position is divided into several combination steps, each combination step forms a tooth movement cycle, based on the alveolar bone remodeling law in each tooth movement cycle of the human body, the tooth movement in this cycle is divided into tooth movement start-up period, tooth rapid movement period and tooth position stabilization period, and different elastic modulus and thickness of the film are prepared through three period multi-film combination; For teeth that need to be moved as a whole, each combination step represents a tooth movement cycle, the initial movement is the start-up tooth movement period, the super-light force high-elasticity film is used, and the tooth movement step is 0.15-0.20 mm; The middle movement is the light force rapid tooth movement period, the elastic film is used to move the tooth with light force, and the tooth movement step is 0.20-0.35 mm; The end of the movement is to use low-elasticity film to stabilize the tooth movement effect, so that the alveolar bone has enough bone formation time; For teeth that need to be tilted, in the tooth arrangement software, multiple tooth movement combination steps are designed according to the different inclination of the patient's teeth, and each time the tooth is straightened, the combination is also divided into three periods, and the tooth straightening movement steps are as follows: S31: In the initial stage of tooth tilting movement, the super-elasticity invisible orthodontic film is used to make the tooth receive a relatively light force, and the tooth tilting movement is 1-2 degrees; S32: In the middle movement, the medium-elasticity orthodontic film is used to straighten the tooth by 2-3 degrees, and the tooth is straightened continuously with light force, and 2-3 films can be added according to the need to achieve the purpose; S33: In the end of the movement, the invisible orthodontic film with higher elastic modulus is used to fine-tune the angle of the crown and the root angle and fix it, and the final position of the tooth is fine-tuned; Step S4: 3D printing resin tooth model; The tooth model file of the tooth movement is transmitted to the 3D printer, and the resin model of the tooth movement is sequentially printed out; Step S5: manufacturing bionic combination film invisible orthodontic appliance by hot pressing technology; By selecting invisible orthodontic resin films with different elasticity, different materials and different thickness, a bionic multi-film combination invisible orthodontic appliance is manufactured by hot pressing technology.

2. The method of claim 1, wherein the method further comprises: providing a plurality of the multi-membrane contact lenses; and providing a plurality of the multi-membrane contact lenses with a plurality of the multi-membrane contact lenses. The tooth movement cycle of step S3 is 7-10 days of osteoclast and 2-3 weeks of osteogenesis to form a cycle.

3. The method of claim 1, wherein the method further comprises: providing a plurality of the multi-membrane contact lenses; and providing a plurality of the multi-membrane contact lenses with a plurality of the multi-membrane contact lenses. The film thickness of the invisible orthodontic resin film of step S5 is 0.3-1.0 mm, and the material of the invisible orthodontic resin film is TPU, PETG or a mixture of the two.

4. A bionic multi-membrane combination membrane type orthokeratology lens, characterized in that: The bionic multi-film combination invisible orthodontic appliance manufactured by the design and preparation method of the bionic multi-film combination film invisible orthodontic appliance of any one of claims 1-3.

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