FS tooth aligner and method of manufacturing the same

Abstract

This invention discloses a FS (First-Part Orthodontic Appliance) and its manufacturing method. The FS appliance includes a first part and a second part. One end face of the first part has a first occlusal groove, which adapts to the contour of the patient's upper dentition. The end face of the first part away from the first occlusal groove has a mounting groove corresponding to the patient's anterior teeth. The second part is detachably fixed to this mounting groove, and the side of the second part away from the mounting groove has a second occlusal groove. The end face of the first part away from the first occlusal groove has a third occlusal groove. The second and third occlusal grooves are connected, and their sidewalls adapt to the contour of the patient's lower dentition. This invention provides a first and a second part. In the initial stage of treatment, the patient only needs to wear the first part. After the patient's jaw position stabilizes and they can repeatedly perform biting movements, the first and second parts are worn simultaneously. This facilitates rapid stabilization of the patient's jaw position, giving the previously unstable mandible a unique occlusal position, thereby quickly treating condylar resorption.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more particularly to an FS orthodontic appliance and its manufacturing method. Background Technology

[0002] Idiopathic condylar resorption (ICR) is a nonfunctional temporomandibular joint remodeling disorder of unknown cause and pathogenesis, characterized by progressive condylar resorption. It commonly affects women aged 15 to 35 years, with an incidence of 1 in 5000 among orthodontic patients. Treatment options include medication, temporomandibular joint anchoring, orthognathic surgery combined with joint surgery, and condylar replacement with autologous rib cartilage grafts.

[0003] Wearing FS (Functional-Splint) braces is a feasible treatment for this condition; however, commonly used FS braces have the following problems: 1) The FS braces are made solely based on the dentition without considering the position of the jawbone where the dentition is located, resulting in the patient's condyle still being in the wrong position when wearing the FS braces, leading to poor treatment results; 2) In the early stages of treatment, before the jaw position is stable, the FS (Front Side Orthodontic) appliance worn by the patient needs to be repeatedly adjusted, which greatly prolongs the time it takes for the jaw position to stabilize and slows down the treatment progress. In addition, when adjusting the FS appliance, it is often necessary to rely on the color imprint of occlusal paper to identify the area to be adjusted, which makes it difficult to accurately locate the part of the FS appliance that needs to be adjusted. This can lead to inaccurate and incomplete adjustments, which can easily cause jaw instability in the patient and also delay the treatment time.

[0004] Therefore, how to improve the technical defects existing in the prior art has always been a problem that ordinary people skilled in the art need to solve. Summary of the Invention

[0005] The purpose of this invention is to provide a FS orthodontic appliance and its manufacturing method, which can accurately locate the ideal position of the condyle and ensure the stability of the patient's jaw position, thereby maximizing the speed of the patient's treatment progress.

[0006] The technical solution provided by this invention is as follows: A FS (Front-Side Orthodontic Appliance) is characterized by comprising: First part and second part; The first split body has a first occlusal groove on one end face, and the first occlusal groove is adapted to the outline of the patient's upper teeth. The end face of the first split body away from the first occlusal groove is provided with an installation groove corresponding to the patient's anterior teeth. The second split body is detachably fixed to the installation groove. The second part has a second occlusal groove on the side away from the mounting groove, and the first part has a third occlusal groove on the end face away from the first occlusal groove. The second occlusal groove is connected to the third occlusal groove, and the sidewalls of the second occlusal groove and the third occlusal groove are adapted to the contour of the patient's lower teeth.

[0007] In some embodiments, the mounting groove is provided with at least one engaging groove, and the second split body is provided with an engaging protrusion corresponding to the engaging groove; The engaging groove and the engaging protrusion engage to limit the second split part to be detachably fixed in the engaging groove.

[0008] In some embodiments, the third occlusal groove is provided with a first protrusion at the cusp of the patient's posterior tooth; The third occlusal groove has a second protrusion at the cusp of the patient's canine, the angle between the sidewall of the second protrusion and the cusp of the incisor is 70°, and the length of the sidewall of the second protrusion is less than 3mm; and The bottom of the second occlusal groove is a smooth plane.

[0009] In some embodiments, the second occlusal groove has a grinding point corresponding to the incisal edge of the patient's incisor, and the grinding point is made of a low-abrasion-resistant material.

[0010] In some embodiments, the depth of the first engagement groove is not less than 1 mm; and / or The depth of both the second and third occlusal grooves is not less than 1 mm.

[0011] In some embodiments, the FS orthodontic appliance has a U-shaped structure; and / or The first occlusal groove and the third occlusal groove are provided with at least one arrow clasp corresponding to the patient's posterior teeth area.

[0012] The present invention also provides a method for manufacturing an FS orthodontic appliance, for use in any of the FS orthodontic appliances provided above, comprising: An impression was taken from the patient's mouth to create a plaster model. Obtain the patient's new occlusal relationship, perform facebow transfer, determine the ideal position of the condyle based on the obtained information, and create a three-dimensional model; FS dental aligners are obtained using 3D printing; The FS orthodontic appliance is finely ground and then shaped and polished.

[0013] In some implementations, obtaining the patient's new occlusal relationship includes: Adjust the chair to a 45° angle with the ground so that the patient's head is tilted back; Place the left thumb and index finger on the patient's maxillary first molar, and the right thumb and index finger on the patient's chin, and push them back to eliminate the patient's original occlusal relationship; The patient's new occlusal relationship was recorded using blue wax.

[0014] In some implementations, determining the ideal location of the condyle based on the obtained information includes: Import the scanned images of the patient's skull into the 3D surgical design software; By combining cephalometric measurements with occlusal relationships, the ideal position of the mandible is determined, and then the ideal position of the condyle is determined.

[0015] In some implementations, fine-tuning of the FS orthodontic appliance includes: The patient wore the first part of the device and underwent treatment for a period of time before returning for a follow-up visit. After wearing the second part and simulating chewing activities for a while, observe the wear of the incisor grinding points, determine the guide line of the incisors, and finely adjust the FS orthodontic appliance. The patient bites on a piece of red paper and tries on the FS braces again to confirm the contact relationship between the FS braces and the patient's upper and lower teeth. If the desired contact relationship is achieved, stop fine grinding; if the desired contact relationship is not achieved, continue fine grinding.

[0016] The technical effects of this invention are as follows: 1. In this patent, the FS orthodontic appliance includes a first part and a second part. In the early stage of treatment, the patient only needs to wear the first part. After the patient's jaw position is stable and can repeatedly perform biting movements, the first part and the second part can be worn at the same time. This is conducive to the rapid stabilization of the patient's jaw position and has a significant therapeutic effect on condylar resorption.

[0017] 2. In this patent, by setting abrasion points made of low-wear-resistant material, the abrasion points will wear down to varying degrees after only a short trial period. Medical staff can directly judge the guide line of the incisors based on the degree of wear of the abrasion points, so as to better and more precisely adjust the FS orthodontic appliance. This results in higher precision, which is beneficial to the patient's treatment, and the treatment progress and effect are greatly improved.

[0018] 3. In this patent, by setting arrow-shaped retaining rings, the FS orthodontic appliance can be firmly fixed to the patient's teeth, preventing the FS orthodontic appliance from moving and ensuring its treatment effect.

[0019] 4. In this patent, cephalometric measurement is combined with occlusal relationship to determine the ideal position of the mandible, and then the ideal position of the condyle, so that the treatment effect of the patient is more stable. Attached Figure Description

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Figure 1 This is a three-dimensional structural diagram of the FS orthodontic appliance provided by the present invention; Figure 2 This is a three-dimensional structural diagram of the first component provided by the present invention in one state; Figure 3 This is a front view of the first component provided by the present invention; Figure 4 This is a three-dimensional structural diagram of the first component provided by the present invention in another state; Figure 5 This is a three-dimensional structural diagram of the second component provided by the present invention in one state; Figure 6 This is a three-dimensional structural diagram of the second component provided by the present invention in another state; Figure 7 This is a top view of the second component provided by the present invention; Figure 8 This is a cross-sectional view of the FS orthodontic appliance provided by the present invention; Figure 9 This is a cross-sectional view of the FS orthodontic appliance provided by the present invention in use.

[0021] Explanation of icon numbers: 100. First split part; 110. First engagement groove; 120. Mounting groove; 121. Engagement groove; 130. Third engagement groove; 200, Second part; 210, Second engagement groove; 211, Grinding point; 220, Engaging boss. Detailed Implementation

[0022] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0024] To keep the drawings concise, each figure only schematically shows the parts relevant to the invention, and these do not represent the actual structure of the product. Furthermore, to facilitate understanding, in some figures, only one of components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0025] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0026] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of the invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0028] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] According to a specific embodiment provided by the present invention, see [link to specific embodiment]. Figures 1 to 9 A FS (Front-Tooth) orthodontic appliance and its manufacturing method are disclosed. Specifically, the FS orthodontic appliance may include a first part 100 and a second part 200. The first part 100 has a first occlusal groove 110 on one end face, which is adapted to the contour of the patient's upper dentition. Simultaneously, the end face of the first part 100 away from the first occlusal groove 110 has a mounting groove 120 corresponding to the patient's anterior teeth, and the second part 200 is detachably fixed to the mounting groove 120. Conversely, the side of the second part 200 away from the mounting groove 120 has a second occlusal groove 210, and the end face of the first part 100 away from the first occlusal groove 110 has a third occlusal groove 130, with the second occlusal groove 210 and the third occlusal groove 130 communicating with each other. Both of their sidewalls are adapted to the contour of the patient's lower dentition.

[0030] In this embodiment, the FS orthodontic appliance includes a first part 100 and a second part 200. Initially, the patient only needs to wear the first part 100. Once the patient's jaw position is stable and they can perform repeatable biting movements, both the first part 100 and the second part 200 can be worn simultaneously. This facilitates faster jaw position stabilization and significantly accelerates the treatment process. The main mechanism of using the FS orthodontic appliance to treat idiopathic condylar resorption is to restore the patient's biting function, achieving stable and repeatable biting movements and joint position. During correction, the ideal joint position is primarily based on the overall structure of the mandible. If only the posterior teeth portion of the lower dentition is initially fitted with the FS appliance, jaw position stabilization can be accelerated.

[0031] Once the jaw position is stable, the second part 200 is worn for treatment. This significantly improves treatment effectiveness and reduces the relapse rate. Furthermore, it eliminates the need for repeated adjustments by medical staff to the FS orthodontic appliance, shortening treatment time and accelerating the patient's treatment progress.

[0032] It is worth noting that in this embodiment, the end face of the first split 100 with the first occlusal groove 110 should form a certain angle with the end face of the first split 100 away from the first occlusal groove 110. This is because when a patient wears the FS orthodontic appliance, their upper and lower teeth will separate at a certain angle. Therefore, by making the end face of the first split 100 with the first occlusal groove 110 form a certain angle with the end face of the first split 100 away from the first occlusal groove 110, the FS orthodontic appliance provided in this embodiment can better fit the patient's oral cavity, thereby achieving a better treatment effect and improving patient comfort to a certain extent.

[0033] Of course, in actual production, the specific size of the angle between the end face of the first split 100 with the first engagement groove 110 and the end face of the first split 100 away from the first engagement groove 110 can be flexibly set according to actual needs, and will not be elaborated here, but is within the protection scope of the present invention.

[0034] In one specific embodiment, see Figures 2 to 9 The mounting groove 120 is provided with at least one engaging groove 121, and the second split body 200 is provided with an engaging boss 220 corresponding to the engaging groove 121. The engaging groove 121 can be limited and engaged with the corresponding engaging boss 220 to detachably fix the second split body 200 in the engaging groove 121.

[0035] Specifically, each of the opposite side walls of the mounting groove 120 is provided with two engaging grooves 121, and the two engaging grooves 121 on each side wall are arranged in parallel. Correspondingly, the second part 200 is provided with an engaging boss 220 at each of the four engaging grooves 121. The engaging boss 220 is adapted to the contour of the engaging groove 121, and the engaging groove 121 can be any columnar structure such as cylindrical or triangular prism, which will not be described in detail here, and are all within the protection scope of this invention.

[0036] Of course, in actual production, the first part 100 and the second part 200 can also be detachably connected by other fixing methods. This embodiment only lists one possible implementation scheme and does not limit it. All of them are within the protection scope of this invention.

[0037] Preferably, the third occlusal groove 130 has a first protrusion corresponding to the cusp of the patient's posterior teeth. The first protrusion should pry open the posterior tooth area and ensure that the distance between the posterior teeth of the upper and lower dentition does not exceed 2 mm. Conversely, the third occlusal groove 130 has a second protrusion corresponding to the cusp of the patient's canines, the sidewall of which forms a 70° angle with the cusp of the incisor, and the length of the sidewall of the second protrusion is less than 3 mm. The first occlusal groove 110 has a third protrusion corresponding to the cusp of the patient's incisors, the sidewall of which forms a 25° angle with the cusp of the incisor. It is worth noting that the bottom of the second occlusal groove 210 is a smooth plane.

[0038] In this embodiment, the bottom of the third occlusal groove 130 makes uniform point contact with the cusps of the patient's mandibular posterior teeth. Conversely, the bottom of the third occlusal groove 130 makes point contact with the cusps of the patient's mandibular canines, forming a ramp with a length of less than 3 mm and an angle of approximately 70°. This allows the mandible to slide along the ramp when making lateral movements, and prevents other areas of the patient's mandible from interfering with the bottom of the first occlusal groove 110, thereby avoiding interference with the patient's lateral movements.

[0039] It is worth noting that the incisal edge of the mandibular lateral incisor should not contact the bottom of the second occlusal socket 210. To this end, the bottom of the second occlusal socket 210 is a smooth plane, and the corresponding area should be appropriately ground down so that this area does not affect the patient's mandibular protrusion and lateral movement.

[0040] Specifically, see Figure 5 and Figures 7 to 9The second occlusal groove 210 has a grinding point 211 corresponding to the incisal edge of the patient's incisor. This grinding point 211 is made of a low-wear-resistant material. The grinding point 211 will show varying degrees of wear after only a short trial period. Medical staff can directly determine the guide line of the incisor based on the degree of wear of the grinding point 211, allowing for more precise adjustment of the FS orthodontic appliance. Compared to existing technologies that rely entirely on the color imprint of occlusal paper to confirm the adjustment, this embodiment offers higher precision, is more beneficial to the patient's treatment, and significantly improves treatment progress and effectiveness.

[0041] Preferably, the first occlusal groove 110 has a depth of not less than 1 mm to cover the buccal and palatal surfaces of the patient's upper dentition. Conversely, the second occlusal groove 210 and the third occlusal groove 130 both have a depth of not less than 1 mm to cover the buccal and palatal surfaces of the patient's lower dentition.

[0042] In actual production, the depths of the first occlusal groove 110, the second occlusal groove 210, and the third occlusal groove 130 can be flexibly set according to the actual situation, and are not limited here, all of which are within the protection scope of the present invention.

[0043] Specifically, see Figure 1 The FS orthodontic appliance has a U-shaped structure, and the first occlusal groove 110 and the third occlusal groove 130 are provided with at least one arrow clasp corresponding to the patient's posterior teeth area.

[0044] In this embodiment, arrow clasps can be placed on the buccal side of the first occlusal slot 110 and the third occlusal slot 130 corresponding to the patient's first molar and second molar, the first molar and second premolar, and the first premolar and second premolar, so that the FS orthodontic appliance provided in this embodiment can be stably fixed to the patient's teeth, preventing the FS orthodontic appliance from moving and ensuring its treatment effect.

[0045] This invention also provides a method for manufacturing an FS (Front Side Orthodontic) appliance, used to produce the FS appliance provided in any of the above embodiments. The manufacturing method specifically includes the following steps: First, a medical professional takes an impression from the patient's mouth and then creates a plaster model based on the impression. Next, the patient's new occlusal relationship is obtained, and facebone transfer is performed. Then, based on the obtained information, the ideal position of the condyle is determined, and a three-dimensional model is created. After the three-dimensional model is completed, the FS appliance is obtained using 3D printing. Finally, the FS appliance is finely ground and polished to obtain the desired FS appliance.

[0046] Preferably, medical staff can use digital facial arch support software (SAM® AXIOQUICK® facebow) to transfer the facebow to the patient, so that the positional relationship of the maxillary model relative to the skull is transferred to the support.

[0047] Specifically, the steps described above regarding obtaining the patient's new occlusal relationship may include the following: The medical staff first adjusts the chair to a 45° angle with the ground, instructs the patient to relax, and keeps the patient's head tilted back. Then, the left thumb and forefinger are placed on the patient's maxillary first molar, and the right thumb and forefinger are placed on the patient's chin, gently pushing them back. Simultaneously, the patient is instructed to slowly open and close their mouth slightly, ensuring the mouth is not opened too wide, allowing the muscles to fully relax and eliminating the patient's original occlusal relationship. Finally, the new occlusal relationship in the relaxed state is recorded using blue wax. It is worth noting that the occlusal relationship generally changes according to condylar resorption; in this case, the patient's mandible will generally retract and rotate downwards clockwise.

[0048] At this point, medical staff can use the blue wax that has been used to establish the new occlusal relationship. After placing it on the maxillary model, they can then install the mandibular model to transfer the new occlusal relationship to the support structure.

[0049] Furthermore, in the above steps, determining the ideal position of the condyle based on the obtained information may also include the following operations: medical staff first import the scanned image of the patient's skull into the three-dimensional surgical design software, and then combine the cephalometric measurement with the occlusal relationship to determine the ideal position of the mandible, and then determine the ideal position of the condyle.

[0050] Preferably, medical staff can use 3D surgical design software such as Proplan and Mimics to import the patient's skull scan data and reconstruct the segmented maxilla and mandible, then replace the reconstructed dentition with the laser-scanned dental arch registration. Then, by combining cephalometric measurements with occlusal relationships, medical staff can more accurately locate the ideal position of the condyle, thereby determining the ideal condyle position. This allows medical staff to determine the maxillary-mandibular relationship and manufacture FS (Front-Tooth) orthodontic appliances. FS appliances manufactured using this method can prevent the patient's condyle from remaining in an incorrect position when wearing them, resulting in better treatment outcomes and a lower relapse rate.

[0051] Specifically, the guide plate produced by 3D printing technology is first placed on the bracket, and then the position of the upper and lower jaws is re-fixed with plaster. FS dental braces can then be made using 3D printing technology.

[0052] Furthermore, the fine-tuning of the FS orthodontic appliance in the above steps may include the following: The patient first wears the first part, and after a period of treatment, returns for a follow-up appointment to wear the second part. While wearing the second part, the patient must simulate chewing activities. After a short while, the medical staff observes the wear degree of the incisor grinding point 211 to determine the guide line of the incisor and performs fine-tuning of the FS orthodontic appliance. After fine-tuning, the patient bites on red paper and tries on the FS orthodontic appliance again to confirm the contact relationship between the FS orthodontic appliance and the patient's upper and lower teeth. If the finely tuned FS orthodontic appliance meets the required contact relationship, fine-tuning stops; if the finely tuned FS orthodontic appliance does not meet the required contact relationship, fine-tuning continues until the finely tuned FS orthodontic appliance meets the required contact relationship.

[0053] In this embodiment, a one-piece FS orthodontic appliance is first fabricated using the steps described above. Then, the FS orthodontic appliance is cut into two parts, and mutually interlocking fixing structures are set on the two parts to form a first part 100 and a second part 200. Of course, in actual production, the first part 100 and the second part 200 can also be constructed during 3D modeling and then directly printed. This is not a limitation and is within the scope of protection of this invention.

[0054] It is worth noting that after the FS orthodontic appliance is made, the surface should be smoothed and polished to avoid scratching the patient.

[0055] The FS orthodontic appliance provided by this invention has been put into clinical use, with significant therapeutic effects and a low relapse rate.

[0056] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0057] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An FS tooth aligner, characterized by, include: First part and second part; The first split body has a first occlusal groove on one end face, and the first occlusal groove is adapted to the outline of the patient's upper teeth. The end face of the first split body away from the first occlusal groove is provided with an installation groove corresponding to the patient's anterior teeth. The second split body is detachably fixed to the installation groove. The second part has a second occlusal groove on the side away from the mounting groove, and the first part has a third occlusal groove on the end face away from the first occlusal groove. The second occlusal groove is connected to the third occlusal groove, and the sidewalls of the second occlusal groove and the third occlusal groove are adapted to the contour of the patient's lower teeth.

2. The FS tooth aligner of claim 1, wherein , The mounting groove is provided with at least one engaging groove, and the second split body is provided with an engaging protrusion corresponding to the engaging groove; The engaging groove and the engaging protrusion engage to limit the second split part to be detachably fixed in the engaging groove.

3. The FS orthodontic appliance according to claim 1 or 2, characterized in that, The third occlusal groove is provided with a first protrusion at the cusp of the patient's posterior tooth; The third occlusal groove has a second protrusion at the cusp of the patient's canine, the angle between the sidewall of the second protrusion and the cusp of the incisor is 70°, and the length of the sidewall of the second protrusion is less than 3mm; and The bottom of the second occlusal groove is a smooth plane.

4. The FS orthodontic appliance according to claim 1 or 2, characterized in that, The second occlusal groove has a grinding point corresponding to the incisal edge of the patient's incisor, and the grinding point is made of a low wear-resistant material.

5. The FS orthodontic appliance according to claim 1 or 2, characterized in that, The depth of the first occlusal groove is not less than 1 mm; and / or The depth of both the second and third occlusal grooves is not less than 1 mm.

6. The FS orthodontic appliance according to claim 1 or 2, characterized in that, The FS orthodontic appliance has a U-shaped structure; and / or The first occlusal groove and the third occlusal groove are provided with at least one arrow clasp corresponding to the patient's posterior teeth area.

7. A method of manufacturing an FS tooth aligner for use in the FS tooth aligner of any one of claims 1-6, characterized by, include: An impression was taken from the patient's mouth to create a plaster model. Obtain the patient's new occlusal relationship, perform facebow transfer, determine the ideal position of the condyle based on the obtained information, and create a three-dimensional model; FS dental aligners are obtained using 3D printing; The FS orthodontic appliance is finely ground and then shaped and polished.

8. The method of manufacturing an FS tooth aligner according to claim 7, wherein, Obtain the patient's new occlusal relationship, including: Adjust the chair to a 45° angle with the ground so that the patient's head is tilted back; Place the left thumb and index finger on the patient's maxillary first molar, and the right thumb and index finger on the patient's chin, and push them back to eliminate the patient's original occlusal relationship; The patient's new occlusal relationship was recorded using blue wax.

9. The method of manufacturing an FS tooth aligner according to claim 7, wherein, Determine the ideal location of the condyle based on the information obtained, including: Import the scanned images of the patient's skull into the 3D surgical design software; By combining cephalometric measurements with occlusal relationships, the ideal position of the mandible is determined, and then the ideal position of the condyle is determined.

10. The method of manufacturing an FS tooth aligner of claim 7, wherein, Fine-tuning of FS orthodontic appliances, including: The patient wore the first part of the device and underwent treatment for a period of time before returning for a follow-up visit. After wearing the second part and simulating chewing activities for a while, observe the wear of the incisor grinding points, determine the guide line of the incisors, and finely adjust the FS orthodontic appliance. The patient bites on a piece of red paper and tries on the FS braces again to confirm the contact relationship between the FS braces and the patient's upper and lower teeth. If the desired contact relationship is met, stop fine grinding; if the desired contact relationship is not met, continue fine grinding.

Images