A rapid alignment method using transparent orthodontic molds

Abstract

This invention discloses a rapid alignment method using transparent orthodontic molds. The method involves using a 3D scanner to obtain the model data of the teeth to be corrected; using computer simulation software to simulate and correct the model data to obtain corrected model data; using a 3D printer to generate a resin model of the teeth based on the corrected model data; using the resin model, a transparent orthodontic appliance is fabricated using a membrane press; and the transparent orthodontic appliance is worn for a preset time. The teeth are numbered 1 to 7 according to a symmetrical principle. Based on a cyclical pattern of 7, 6, 75, 64, 753, 642, 7531, 642, 7531, 642, 7531, 642, and so on, the simulation software designs the sequence of tooth movement from the initial state to the ideal state, achieving personalized movement customization and a rapid and stable alignment effect. The design of the tooth midline is realized, and the sagittal direction is also well stabilized.

Description

Technical Field

[0001] This invention relates to the field of cosmetic dentistry, specifically to a method for rapid alignment using transparent dental molds. Background Technology

[0002] The current order of tooth movement in invisible orthodontic treatment is 7, 6, 5, 4, 3, 2, 1; tooth 7 is moved first, then tooth 6, and so on until aligned. Its main disadvantages are:

[0003] 1. No changes are visible in the front teeth within one or two years of starting orthodontic treatment;

[0004] 2. Orthodontics involves the coordinated movement of teeth, muscles, and bones. Currently, the only way to observe changes in patients is after the first orthodontic treatment, and then adjustments are made, which takes too long.

[0005] 3. Inadequate anchorage design can easily lead to tooth movement contrary to the intended parameters;

[0006] 4. A large number of unnecessary cleavages are required for the front teeth;

[0007] 5. The standardized movement method lacks personalized design for specific cases;

[0008] 6. Continuous movement of a single tooth can cause root resorption and insufficient time for bone remodeling, resulting in irreversible damage to the teeth from orthodontics.

[0009] Existing technical approaches are ineffective in addressing midline adjustments, and the actual outcome is contrary to the design, creating a strange phenomenon where the design is flawed in every possible way. Through trials using various clinical methods, it has been proven that this sequence is the best solution for midline problems, and it is also highly efficient and stable for aligning severely crowded cases.

[0010] Our goal is to provide orthodontic treatment that can be designed like an animation, offering a WYSIWYG (what you see is what you get) experience. This would allow for efficient and stable orthodontic treatment, minimizing harm. Summary of the Invention

[0011] Therefore, the present invention provides a rapid alignment method using a transparent orthodontic mold to solve the above-mentioned problems in the prior art.

[0012] To achieve the above objectives, the present invention provides the following technical solution:

[0013] According to a first aspect of the present invention, a rapid alignment method using a transparent orthodontic mold includes the following steps:

[0014] Step S100: Use a 3D scanner to scan and obtain the model data of the teeth to be corrected;

[0015] Step S200: Use computer simulation software to simulate and correct the current tooth model data to be corrected obtained in step S100, and obtain the corrected tooth model data.

[0016] Step S300: Based on the corrected tooth model data obtained in step S200, a tooth resin model is generated by printing using a 3D printer.

[0017] Step S400: Using the dental resin model obtained in step S300, a transparent dental aligner is fabricated using a membrane press.

[0018] The teeth are numbered from 1 to 7 according to the principle of symmetry. Based on the cycle of 7, 6, 75, 64, 753, 642, 7531, 642, 7531, 642, 7531, 642, the sequence of teeth moving from the initial state to the ideal state is designed using simulation software.

[0019] The design push-molar distance is D, and the following movement method is adopted:

[0020] First, move tooth #7 in each quadrant distally by a distance d, leaving the other teeth unchanged.

[0021] Step 2: Move tooth #6 distally by a distance d, leaving the other teeth unchanged.

[0022] Step 3: Move teeth #7 and #5 distally by a distance d, leaving the other teeth unchanged.

[0023] Step 4: Move teeth #6 and #4 distally by a distance d, leaving the other teeth unchanged.

[0024] Step 5: Move teeth #7, #5, and #3 distally by a distance d, leaving the other teeth unchanged.

[0025] Step 6: Move teeth #6, #4, and #2 distally by a distance d, leaving the other teeth unchanged.

[0026] Step 7: Move teeth 7, 5, 3, and 1 distally by a distance d, leaving the other teeth unchanged.

[0027] Step 8: Move teeth #6, #4, and #2 distally by a distance d, leaving the other teeth stationary.

[0028] Step 9: Repeat steps 7 and 8.

[0029] Furthermore, D = 2.5 mm; d = 0.25 mm.

[0030] Further, the transparent dental aligner obtained in step S400 is trimmed and polished at the edges.

[0031] Further, the trimmed and polished transparent orthodontic appliance is installed on the dental resin model obtained in step S300 to check the edge neatness and fit.

[0032] Furthermore, the tooth movement and alignment process involves a total of 40 steps or more.

[0033] Furthermore, before step S400 is executed, the surface molding state of the tooth resin model obtained in step S300 needs to be checked.

[0034] Furthermore, the current tooth model data to be corrected obtained from step S100 and the corrected tooth model data obtained from step S200 are stored.

[0035] The present invention has the following advantages: By using a rapid alignment method with a transparent dental mold, the teeth before correction are continuously modified and transparent dental aligners are made. Compared with traditional orthodontic methods, the comfort of the correction process is significantly enhanced, the alignment effect can be seen earlier, the need for clinical interproximal reduction is greatly reduced, personalized movement methods are customized, a rapid and stable alignment effect is achieved, the design of the dental midline is realized, and the sagittal direction can also be well stabilized. Attached Figure Description

[0036] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0037] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0038] Figure 1 The flowchart illustrates a rapid alignment method using a transparent orthodontic mold, provided for some embodiments of the present invention.

[0039] Figure 2 This is a comparison diagram of step 10 of a rapid alignment method using a transparent orthodontic mold and a transmission alignment method provided for some embodiments of the present invention.

[0040] Figure 3 This is a comparison diagram of step 20 of a rapid alignment method using a transparent orthodontic mold and a transmission alignment method, provided for some embodiments of the present invention.

[0041] Figure 4 This is a comparison diagram of step 30 of a rapid alignment method using a transparent orthodontic mold and a transmission alignment method, provided for some embodiments of the present invention.

[0042] Figure 5 This is a comparison diagram of step 40 of a rapid alignment method using a transparent orthodontic mold and a transmission alignment method, provided for some embodiments of the present invention.

[0043] Figure 6 This is a comparison diagram of step 50 of a rapid alignment method using a transparent orthodontic mold and a transmission alignment method, provided for some embodiments of the present invention. Detailed Implementation

[0044] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] like Figure 1 As shown, a rapid alignment method using a transparent orthodontic mold, according to a first aspect embodiment of the present invention, includes the following steps:

[0046] Step S100: Use a 3D scanner to scan and obtain the model data of the teeth to be corrected;

[0047] Step S200: Use computer simulation software to simulate and correct the current tooth model data to be corrected obtained in step S100, and obtain the corrected tooth model data.

[0048] Step S300: Based on the corrected tooth model data obtained in step S200, a tooth resin model is generated by printing using a 3D printer.

[0049] Step S400: Using the dental resin model obtained in step S300, a transparent dental aligner is fabricated using a membrane press.

[0050] The teeth are numbered from 1 to 7 according to the principle of symmetry. Based on the cycle of 7, 6, 75, 64, 753, 642, 7531, 642, 7531, 642, 7531, 642, the sequence of teeth moving from the initial state to the ideal state is designed using simulation software.

[0051] The design push-molar distance is D, and the following movement method is adopted:

[0052] First, move tooth #7 in each quadrant distally by a distance d, leaving the other teeth unchanged.

[0053] Step 2: Move tooth #6 distally by a distance d, leaving the other teeth unchanged.

[0054] Step 3: Move teeth #7 and #5 distally by a distance d, leaving the other teeth unchanged.

[0055] Step 4: Move teeth #6 and #4 distally by a distance d, leaving the other teeth unchanged.

[0056] Step 5: Move teeth #7, #5, and #3 distally by a distance d, leaving the other teeth unchanged.

[0057] Step 6: Move teeth #6, #4, and #2 distally by a distance d, leaving the other teeth unchanged.

[0058] Step 7: Move teeth 7, 5, 3, and 1 distally by a distance d, leaving the other teeth unchanged.

[0059] Step 8: Move teeth #6, #4, and #2 distally by a distance d, leaving the other teeth stationary.

[0060] Step 9: Repeat steps 7 and 8.

[0061] Where D = 2.5mm; d = 0.25mm, and the specific values ​​of D and d can be set to values ​​other than those mentioned above as needed.

[0062] In the above embodiments, it should be noted that step S100 uses an instrument capable of scanning teeth before correction to perform data scanning. During operation, the clear aligners for different teeth need to be processed according to the above steps, and the correction effect is gradually achieved through wearing them for a preset time.

[0063] After years of clinical experience and repeated attempts at various solutions, we discovered that this separate-movement sequence, namely the 7 / 6 / 75 / 64 / 753 / 642 / 7531 / 642 sequence, is the true solution to the problem. While this sequence may seem similar to previous methods only in the order of movement, its innovation is significant. After trying various methods without success in resolving the midline issue, we stumbled upon this sequence and discovered that it achieved the expected midline shift. After eliminating interfering factors, we confirmed that this sequence is indeed unique in controlling the midline. Furthermore, the method is simple and effective. Another characteristic of this movement method is its ability to quickly and stably align highly crowded teeth. Therefore, case studies have demonstrated the following results: in the case of a maxillary patient, the distance the teeth were moved backward differed on both sides, but no midline deviation occurred—what you see is what you get.

[0064] The technical effects achieved by the above embodiments are as follows: By using a rapid alignment method with transparent orthodontic molds in this embodiment, and by continuously correcting the teeth before correction and making transparent orthodontic appliances, the comfort of the correction process is significantly enhanced compared to traditional orthodontic methods. The teeth alignment effect can be seen earlier, greatly reducing the need for clinical interproximal reduction, realizing the customization of personalized movement methods, allowing teeth sufficient time for bone remodeling, and greatly reducing the damage to teeth caused by orthodontics.

[0065] Optional, such as Figure 1 As shown, in some embodiments, the preset time is 7 to 14 days.

[0066] In the above optional embodiments, it should be noted that, in addition, the wearing time of the clear aligner can be personalized according to different people's circumstances.

[0067] The beneficial effect of the above optional embodiments is that by setting a preset wearing time, the teeth can be gradually corrected.

[0068] Optional, such as Figure 1 As shown, in some embodiments, the transparent dental appliance obtained in step S400 is trimmed and polished at the edges.

[0069] In the above optional embodiments, it should be noted that the purpose of trimming and polishing is to remove burrs from the edges of the clear aligners.

[0070] The advantages of the above optional embodiments are: by trimming and polishing, the comfort of wearing transparent orthodontic appliances is improved, and damage to human gums is avoided.

[0071] Optional, such as Figure 1As shown, in some embodiments, the trimmed and polished clear aligners are mounted on the dental resin model obtained in step S300 to check the edge neatness and fit.

[0072] In the above optional embodiments, it should be noted that during the inspection, the transparent dental aligner is remounted on the dental resin model for testing.

[0073] The advantages of the above optional embodiments are: by checking the edge regularity and fit of the transparent dental aligner and the dental resin model, the comfort of the wearer is guaranteed.

[0074] In addition, the specific manufacturing process of clear aligners includes the following steps: inspecting the printed resin model; filling the model with iron balls to prevent subsequent air pressure from damaging the model's shape; sealing the bottom of the model with an iron plate to lock the iron balls; turning the model sealed with the iron plate over and placing it on the laminating machine; placing the diaphragm; rotating the diaphragm holder to the working position; pressing the confirmation button to start heating; after heating, the cylinder drops, and positive pressure molding begins; pressing the deflation button; removing the successfully laminated dental mold; removing the iron plate and releasing the iron balls; trimming the excess portion of the diaphragm; removing the diaphragm; trimming the diaphragm; polishing the aligner; placing the aligner on the model and checking the edges and fit.

[0075] Optional, such as Figure 1 As shown, in some embodiments, according to the doctor's design, the teeth are terminally aligned to obtain an ideal tooth state; the teeth are numbered from 1 to 7 according to the principle of symmetry, and the sequence of teeth moving from the initial state to the ideal state is designed by simulation software according to the cyclical pattern of 7, 6, 75, 64, 753, 642, 7531, 642, 7531, 642.

[0076] In the above optional embodiments, it should be noted that the numbering here is the tooth numbering method commonly used in the prior art.

[0077] The beneficial effect of the above optional embodiments is that the user's orthodontic comfort is significantly enhanced by the above-described cyclical tooth alignment method.

[0078] Optional, such as Figures 2 to 6 As shown, in some embodiments, the designed molar pushing amount is 2.5mm (the designed molar pushing amount can also be other values), and the following movement method is adopted:

[0079] First, move tooth #7 in each quadrant distally by 0.25mm, leaving the other teeth unchanged.

[0080] Step 2: Move tooth #6 distally by 0.25mm, leaving the other teeth unchanged.

[0081] Step 3: Move teeth #7 and #5 distally by 0.25mm, leaving the other teeth unchanged.

[0082] Step 4: Move teeth #6 and #4 distally by 0.25mm, leaving the other teeth unchanged.

[0083] Step 5: Move teeth #7, #5, and #3 distally by 0.25mm, leaving the other teeth unchanged.

[0084] Step 6: Move teeth #6, #4, and #2 distally by 0.25mm, leaving the other teeth unchanged.

[0085] Step 7: Move teeth 7, 5, 3, and 1 distally by 0.25 mm, leaving the other teeth unchanged.

[0086] Step 8: Move teeth #6, #4, and #2 distally by 0.25mm, leaving the other teeth unchanged.

[0087] Step 9: Repeat steps 7 and 8.

[0088] In the above optional embodiments, it should be noted that, in the above manner, until all teeth are in place; the patient follows the doctor's advice to have regular follow-up visits, and chairside observation is conducted to observe the changes in the oral cavity and soft tissues resulting from the alignment of the teeth; such as Figures 2 to 6 The image shows a comparison of the alignment changes using the traditional method and this method at 10-step intervals. In all images, dark colors represent the original tooth state, and white colors represent the tooth state at the current step. Figures 2 to 6 The left side shows the alignment done using traditional methods, and the right side shows the alignment method of this application; as shown... Figure 2 The image shown is a comparison of the results from step 10; as shown... Figure 3 The image shown is a comparison of the results from step 20; as shown... Figure 4 The image shown is a comparison of the results from step 30; as shown... Figure 5 The image shown is a comparison of the results from step 40; as shown... Figure 6 The image shown is a comparison of the results from step 50.

[0089] The advantages of the above optional embodiments are: through the alignment method of the above steps, the user's wearing comfort is significantly improved, and the damage to teeth and gums during the orthodontic process is greatly reduced.

[0090] Optional, such as Figure 1 As shown, in some embodiments, each step of the tooth movement and alignment process performs the operations of steps S100 to S500.

[0091] In the above optional embodiments, it should be noted that, that is, each step of the alignment method requires the processing of transparent orthodontic appliances based on the computer simulation-corrected tooth model data. In order to improve processing efficiency, the corrected tooth resin model obtained from the entire pre-designed orthodontic steps can be printed out at once, and then numbered sequentially, thereby realizing that the transparent orthodontic appliances required for each step can be printed at once.

[0092] The beneficial effects of the above optional embodiments are: by performing the above steps, the most ideal corrective effect can be achieved with the least damage by adopting a step-by-step fine-tuning approach.

[0093] Optional, such as Figures 2 to 6 As shown, in some embodiments, the tooth movement and alignment process involves more than 40 steps, such as 40 steps, 50 steps, or even 100 steps; in addition, the number of steps may be less than 40.

[0094] In the above optional embodiments, it should be noted that, in addition, the steps required for the tooth movement and alignment process can be customized according to the individual and may be less than 40 steps. With the rapid alignment method of this application, the front teeth can be changed within 10 steps during the tooth movement and alignment process.

[0095] Optional, such as Figure 1 As shown, in some embodiments, before step S400 is executed, the surface molding state of the tooth resin model obtained in step S300 needs to be checked.

[0096] In the above optional embodiments, it should be noted that checking the surface molding state of the dental resin model mainly refers to surface defects.

[0097] The beneficial effect of the above optional embodiments is that, through the above inspection, surface defects of the dental resin model generated during the processing are avoided, thereby avoiding the impact of defects on the processing of transparent dental aligners.

[0098] Optional, such as Figure 1 As shown, in some embodiments, the current tooth model data to be corrected obtained by scanning in step S100 and the corrected tooth model data obtained in step S200 are stored.

[0099] In the above optional embodiments, it should be noted that the above data can be stored in a computer or a mobile storage device.

[0100] The beneficial effects of the above optional embodiments are as follows: by storing the above data, a visual comparison of the entire correction process is achieved, which significantly improves the patient's satisfaction.

[0101] The above embodiments solve the following technical problems:

[0102] 1. To allow changes to occur in the patient's anterior teeth (3-3) from the beginning, so that the alignment effect of the anterior teeth can be seen earlier;

[0103] 2. Observe while performing the treatment, observe the overall changes brought about by the treatment, and design a more suitable plan based on the real-time response.

[0104] 3. Design reasonable anchorage to enable the teeth to achieve the pre-designed movement;

[0105] 4. Because the front teeth can change quickly, the need for interdental cutting is greatly reduced in clinical practice;

[0106] 5. Personalized patient transfer sequence design: different transfer methods are designed according to different cases;

[0107] 6. The intermittent movement method allows teeth ample time for bone remodeling, greatly reducing the damage to teeth caused by orthodontics.

[0108] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

[0109] The terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

Claims

1. A method of making a transparent dental aligner, characterized by, The method comprises the following steps: Step S100, scanning the current tooth model data to be corrected by using a three-dimensional scanner; Step S200, simulating and correcting the current tooth model data to be corrected obtained in step S100 by using a computer simulation software to obtain corrected tooth model data; Step S300, printing a tooth resin model by using a 3D printer according to the corrected tooth model data obtained in step S200; Step S400, using the tooth resin model obtained in step S300 to manufacture a transparent tooth corrector by using a film press; The teeth are numbered according to the symmetry principle as 1 to 7, and the simulation software is used to design the sequence of moving the teeth from the initial state to the ideal state according to the cyclic mode of 7, 6, 75, 64, 753, 642, 7531, 642, 7531, 642; The pushing molar amount is designed as D, and the following moving mode is used: First step, moving the 7th tooth in each quadrant by a distance d towards the distal direction, and other teeth are not moved, Second step, moving the 6th tooth by a distance d towards the distal direction, and other teeth are not moved, Third step, moving the 7th tooth and the 5th tooth by a distance d towards the distal direction, and other teeth are not moved, Fourth step, moving the 6th tooth and the 4th tooth by a distance d towards the distal direction, and other teeth are not moved, Fifth step, moving the 7th tooth, the 5th tooth and the 3rd tooth by a distance d towards the distal direction, and other teeth are not moved, Sixth step, moving the 6th tooth, the 4th tooth and the 2nd tooth by a distance d towards the distal direction, and other teeth are not moved, Seventh step, moving the 7th tooth, the 5th tooth, the 3rd tooth and the 1st tooth by a distance d towards the distal direction, and other teeth are not moved, Eighth step, moving the 6th tooth, the 4th tooth and the 2nd tooth by a distance d towards the distal direction, and other teeth are not moved, Ninth step, the process of the seventh step to the eighth step is cyclically executed.

2. The method of claim 1, wherein, D=2.5mm; d=0.25mm.

3. The method of claim 2, wherein, The edge of the transparent tooth corrector obtained in step S400 is trimmed and polished.

4. The method of claim 3, wherein, The trimmed and polished transparent tooth corrector is installed on the tooth resin model obtained in step S300 to check the edge neatness and the fitting degree.

5. The method of claim 1, wherein, The tooth movement alignment process is executed for more than or equal to 40 steps.

6. The method of claim 1, wherein, Before step S400 is executed, the surface forming state of the tooth resin model obtained in step S300 needs to be checked.

7. The method of claim 1, wherein, The current tooth model data to be corrected scanned in step S100 and the corrected tooth model data obtained in step S200 are stored.

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