Sequential full wrap panel kit and method of making and using same

Abstract

The present application provides a kind of sequential full-enclosing bite plate kit ensuring postoperative occlusion stability, reducing gum damage, increasing patient comfort, improving operation-postoperative orthodontic coherence, and its preparation and use method.The sequential full-enclosing bite plate kit includes a plurality of full-enclosing maxillary bite plate bodies and mandibular bite plate bodies, the occlusal surface of the plurality of maxillary bite plate bodies is provided with accessory one, the occlusal surface of the plurality of mandibular bite plate bodies is provided with accessory two, the contact surface of accessory two and the contact surface of accessory one are in guided contact, by providing stable full-enclosing bite plate, reducing abnormal movement of bone segment and postoperative recurrence, by digital + 3D printing, orthognathic surgery and orthodontic treatment are unified, making the transition from operation to postoperative orthodontic more smooth and stable, through the guidance of occlusal surface, patients independently adapt to adaptive occlusion reconstruction, unnecessary damage is reduced and treatment stability is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a sequential, fully enclosed plywood kit and its preparation and usage methods. Background Technology

[0002] For skeletal dentofacial deformities, conventional orthodontic treatment can only correct dental deformities and cannot correct abnormalities in the position and proportion of the upper and lower jaws. Orthognathic surgery is currently the best treatment option for skeletal dentofacial deformities. A dental splint is an essential tool in orthognathic surgery. During the procedure, it helps determine whether the upper and lower jaws are in the spatial position designed preoperatively, ensuring the surgical outcome meets expectations. Existing dental splints are made using 3D printing or self-curing plastic, and are shaped like a resin plate approximately 3-5 mm thick, conforming to the shape of the dental arch. In routine surgeries, existing dental splints generally meet the needs of clinicians. However, traditional dental splints still suffer from poor precision and a narrow range of applications, making it difficult to guarantee postoperative results for some patients.

[0003] In recent years, a large number of orthognathic surgeries have required maxillary anterior osteotomy and / or mandibular subapical osteotomy (hereinafter referred to as maxillary / mandibular segmentation). This involves dividing the maxillary / mandibular dental arch into three relatively independent parts for separate adjustments, followed by fixation of the bone segments using titanium plates and screws. This type of surgery is often used for patients with secondary malocclusion due to a history of cleft lip and palate, and for those for whom surgery is the preferred treatment option. Traditional orthognathic-orthodontic combined treatment requires approximately one year of orthodontic treatment before surgery, followed by surgery once the surgical criteria are met, and then another six months to one year of orthodontic treatment after surgery. Surgery-first treatment refers to the option for some eligible patients to skip preoperative orthodontics and proceed directly to surgery, with postoperative orthodontic treatment lasting approximately one year. With advancements in technology and changing attitudes, the proportion of patients requiring maxillary / mandibular segmentation is rapidly increasing.

[0004] Because the continuity of the dental arch is interrupted after the upper and lower jaws are divided into segments, the freedom of the three bone segments is greatly amplified. Traditional occlusal plates can only provide a retention reference for the occlusal surface of the teeth and cannot participate in controlling the buccal and lingual tilt of the bone segments. This drawback is particularly obvious in the anterior bone segments (the incisal edge of the anterior teeth is naturally an incisor ridge, which is less stable than that of the posterior teeth). In addition, orthognathic patients usually need to use elastic rubber bands for intermaxillary elastic traction / intermaxillary fixation after surgery to help stabilize postoperative occlusion and reduce postoperative relapse. The current procedure is to first implant 6-8 traction screws into the mucosa near the tooth roots, and then hook 2-4 rubber bands around the corresponding traction screws of the upper and lower jaws respectively. This traction method has the following inherent drawbacks: 1. After the rubber bands are stretched, the diameter becomes thinner and the stress increases, which can compress the gingival mucosa and cause damage, bleeding, or even local mucosal necrosis; 2. A single rubber band pulling on a traction screw may cause abnormal tilting and displacement of the bone segment, affecting the surgical outcome. Another traction method that can reduce abnormal bone segment movement is to use more rubber bands to hook around the orthodontic brackets and archwires of the upper and lower jaws to form intermaxillary ligation fixation. However, this method also has inherent drawbacks: it is not suitable for patients who prioritize surgery for invisible orthodontic treatment, and it greatly affects patients' postoperative eating and oral hygiene. Therefore, a new method adapted to the current situation is urgently needed to overcome the shortcomings of the traditional model. Summary of the Invention

[0005] This invention provides a sequential, fully enclosed mortise and tenon joint kit that ensures stable occlusal relationships after surgery, reduces gingival damage, increases patient comfort, and improves the continuity of orthodontic treatment after surgery. This kit, along with its preparation and usage methods, addresses the problems of unstable effects, significant damage, poor patient experience, and incompatibility with prior surgery and invisible orthodontic treatment in existing technologies.

[0006] The technical solution adopted in this invention is: a sequential fully enclosed mortise and tenon joint kit, comprising multiple sets of sequential fully enclosed maxillary and mandibular joint bodies, each set containing one maxillary and mandibular joint body and corresponding to each other;

[0007] All maxillary occlusal plates have a pair of symmetrically arranged attachments on their occlusal surfaces. Each attachment has a triangular longitudinal section with the end face of its anterior long side as the contact surface. The lower end of each attachment is rounded. The attachment of each maxillary occlusal plate is positioned one tooth forward and 1 mm lower in height than the attachment of the previous set of occlusal plates.

[0008] All mandibular occlusal plates have a pair of symmetrically arranged attachments II on their occlusal surfaces. Each attachment II corresponds vertically to attachment I on the corresponding maxillary occlusal plate in each set. The longitudinal section of each attachment II is triangular, and the end face where the long posterior side is located is the contact surface. The contact surface of each attachment II is parallel to the contact surface of the corresponding attachment I. The top of each attachment II is rounded. When the mandible moves to close its mouth, the contact surface of attachment II and the contact surface of the corresponding attachment I guide the mandible to move.

[0009] Each maxillary occlusal plate has two symmetrically arranged limiting blocks on its occlusal surface, located in front of the two attachments of the maxillary occlusal plate. The distance between each limiting block and the corresponding attachment is adapted to the width of the top of the corresponding attachment.

[0010] Furthermore, the height of Attachment 1 in the multiple sets of sequential full-enclosed composite plates is successively reduced until the height of the last set of Attachment 1 is 0mm or the last set of Attachment 1 is located in the incisor area;

[0011] The height of each Annex II corresponding to Annex I decreases sequentially until the height of the last set of Annex II is 0mm or the last set of Annex II is located in the incisor area.

[0012] Furthermore, the distance between the two Annex 1s on the same side of two adjacent sets of sequential full-enclosed composite plates is one tooth position; the distance between the two Annex 2s on the same side of two adjacent sets of sequential full-enclosed composite plates is one tooth position.

[0013] A method for preparing a sequential, fully enclosed plywood kit includes the following steps:

[0014] S1. The patient underwent a preoperative spiral CT scan and intraoral digital scanning.

[0015] S2. Reconstruct the CT data into a 3D model in the software and fit it with the intraoral scan data to generate a high-precision virtual model.

[0016] S3. Design a surgical plan and perform virtual surgery in the software to obtain the spatial positional relationship of the dental bone segments after surgery;

[0017] S4. Design a fully enclosed occlusal plate based on the virtual postoperative dentition, including multiple maxillary occlusal plate bodies and mandibular occlusal plate bodies;

[0018] S5. Select one of the maxillary occlusal plate bodies and add a set of attachments 1 and a limiting block at a suitable position on the occlusal surface of its molars to obtain a new maxillary occlusal plate body 2. Select one of the mandibular occlusal plate bodies and add a corresponding set of attachments 2 at a suitable position on the occlusal surface of its molars to obtain a new mandibular occlusal plate body 2. The positions of attachments 1 and 2 should be set so that when the upper and lower teeth occlude closely, the maxilla and mandible are in the spatial position designed by the virtual surgery.

[0019] S6. Select another maxillary occlusal plate body one and add a new set of attachment one to its occlusal surface to obtain maxillary occlusal plate body three. The height of attachment one here is 1mm lower than that of attachment one in S5, and the position is moved forward by one tooth position. Select another mandibular occlusal plate body one and add a new set of attachment two to its occlusal surface to obtain mandibular occlusal plate body three. Attachment two here is set vertically to correspond with attachment one of maxillary occlusal plate body three.

[0020] S7. Repeat steps S6, and so on, until the height of the last selected set of attachments drops to 0mm or is located in the incisor area;

[0021] S8. Import the data information of multiple maxillary and mandibular synaptic plates obtained in steps S4-S7 into the 3D printing system, and use CAD / CAM to produce a complete sequential, fully enclosed synaptic plate kit. After low-temperature plasma sterilization, it is ready for use.

[0022] A method of using a sequential, fully enclosed plywood kit includes the following steps:

[0023] A. During the operation, the osteotomy was performed in sections according to the standard procedure. After confirming that the bone segments were fully freed, the first body of the maxillary occlusal plate and the first body of the mandibular occlusal plate were respectively inserted. The position of the high point between the bone segments was determined based on whether it could just cover the dentition and was adjusted to ensure that the entire dentition was intact and passively included in the occlusal plate. The bone segments were fixed in the standard way to complete the operation.

[0024] B. 3-5 days after surgery, when the patient's facial swelling gradually subsides, replace the maxillary occlusal plate body 2 and mandibular occlusal plate body 2 with the maxillary occlusal plate body 2, and instruct the patient to move the mandible forward on their own to find the designed occlusal position, and practice every day.

[0025] C. After one week, switch to the maxillary occlusal plate body 3 and the mandibular occlusal plate body 3, and continue to instruct the patient to practice independently.

[0026] D. Following this pattern, approximately one month after the surgery, the final set of maxillary occlusal plate N and mandibular occlusal plate N can be used. At this time, you can consult with an orthodontist to switch to orthodontic invisible aligners.

[0027] The beneficial effects of this invention are as follows:

[0028] 1. Upgrade the traditional dental splint that can only control the occlusal surface during surgery to a fully enclosed splint that can provide stable coverage for the entire dentition, reduce abnormal bone movement, ensure orderly connection between surgery and postoperative care, and reduce postoperative recurrence.

[0029] 2. By using digital technology and 3D printing to obtain a fully enclosed composite plate kit, orthognathic surgery and orthodontic treatment are integrated, making the transition from surgery to postoperative orthodontics smoother and more stable.

[0030] 3. By guiding the occlusal surface, patients can autonomously perform adaptive occlusal reconstruction, avoiding unnecessary damage caused by rubber band traction in traditional methods and improving the stability of treatment efficacy. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the application of a sequential, fully enclosed plywood plate according to the present invention on a corresponding tooth row;

[0032] The markings in the diagram are as follows: 1-Maxillary occlusal plate body, 2-Mandibular occlusal plate body, 3-Attachment 1, 4-Attachment 2, 5-Limiting block. Detailed Implementation

[0033] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] It should be noted that all directional indicator terms such as "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" in the embodiments of this application indicate the orientation or positional relationship based on the patient's orientation or positional relationship. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. They are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0035] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0037] like Figure 1 As shown, the sequential fully enclosed mortise and tenon joint kit includes multiple sets of sequential fully enclosed maxillary and mandibular joint bodies. Each set of maxillary and mandibular joint bodies contains one maxillary joint body 1 and one mandibular joint body 2, which correspond one-to-one.

[0038] All maxillary occlusal plates 1 have a pair of symmetrically arranged attachments 3 on their occlusal surfaces. That is, each maxillary occlusal plate 1 has attachments 3 on both the left and right sides of its occlusal surface. The longitudinal section of each attachment 3 is triangular, and the end face of the front long side is the contact surface, which is slanted upward. The lower end of each attachment 3 is rounded. Compared with the attachment 3 in the previous set of maxillary occlusal plates 1, the attachment 3 of each set of maxillary occlusal plates 1 is moved forward by one tooth position and its height is reduced by 1mm. That is, when multiple sets of maxillary occlusal plates 1 are arranged in a straight line from back to front, the attachment 3 of the maxillary occlusal plate 1 located on the front side is moved forward by one tooth position and its height is reduced by 1mm compared with the attachment 3 of the adjacent maxillary occlusal plate 1 located on the back side.

[0039] All mandibular occlusal plates 2 have a pair of symmetrically arranged attachments 2 4 on their occlusal surfaces. That is, each mandibular occlusal plate 2 has attachments 2 4 on both sides of its occlusal surface. Each attachment 2 4 corresponds vertically to attachment 1 3 on the corresponding maxillary occlusal plate 1 within the set. In other words, the two attachments 2 4 on the left and right sides of the occlusal surface of the mandibular occlusal plate 2 correspond vertically to the two attachments 1 3 on the left and right sides of the corresponding maxillary occlusal plate 1. The longitudinal section of each attachment 2 4 is triangular, with the end face containing the posterior long side serving as the contact surface. The contact surface of Attachment 2 4 is parallel to the contact surface of the corresponding Attachment 1 3. The top of each Attachment 2 4 is rounded. When the mandible moves to close its mouth, the contact surface of Attachment 2 4 and the contact surface of the corresponding Attachment 1 3 guide the mandible to move. Since the contact surface of Attachment 2 4 is an inclined surface, the mandible can be guided to protrude forward when it closes. During this process, the contact surface of Attachment 2 4 and the contact surface of the corresponding Attachment 1 3 overlap more and more. In addition, the lower end of Attachment 1 3 and the top of Attachment 2 4 are rounded, which facilitates sliding contact to complete the guidance when the two are in contact.

[0040] Each maxillary occlusal plate body 1 has two symmetrically arranged limiting blocks 5 on its occlusal surface, located in front of the two attachments 3 of the maxillary occlusal plate body 1. The distance between each limiting block 5 and the corresponding attachment 3 is adapted to the width of the top of the corresponding attachment 4. The purpose of setting the limiting blocks 5 is to avoid excessive protrusion of the mandible. When the contact surface of attachment 4 overlaps with the contact surface of the corresponding attachment 3 to a certain extent, the limiting block 5 will be stuck on the front end face of attachment 4, thereby limiting the excessive overlap between the contact surface of attachment 4 and the contact surface of the corresponding attachment 3, thus preventing excessive protrusion of the mandible.

[0041] In this example, the number of multiple sets of sequential full-enclosure composite plates is determined by the height or position of Annex 1 3 and Annex 2 4. The height of Annex 1 3 in the multiple sets of sequential full-enclosure composite plates decreases sequentially until the height of the last set of Annex 1 3 is 0mm or the last set of Annex 1 3 is located in the incisor area.

[0042] The height of each of the Annex II 4 corresponding to Annex I 3 decreases sequentially until the height of the last set of Annex II 4 is 0mm or the last set of Annex II 4 is located in the incisor area.

[0043] In this example, preferably, the distance between the two attachments 3 on the same side of two adjacent sets of sequential full-enclosed composite plates is one tooth position; the distance between the two attachments 4 on the same side of two adjacent sets of sequential full-enclosed composite plates is one tooth position.

[0044] A method for preparing a sequential, fully enclosed plywood kit includes the following steps:

[0045] S1. The patient underwent a preoperative spiral CT scan and intraoral digital scanning.

[0046] S2. Reconstruct the CT data into a 3D model in the software and fit it with the intraoral scan data to generate a high-precision virtual model.

[0047] S3. Design a surgical plan and perform virtual surgery in the software to obtain the spatial positional relationship of the dental bone segments after surgery;

[0048] S4. Based on the virtual postoperative dentition design, a sequential, fully enclosed dentition kit is designed, including multiple maxillary dentition body 1 and mandibular dentition body 1.

[0049] S5. Select one of the maxillary occlusal plate bodies and add a set of attachment 1 3 and limiting block 5 at a suitable position on the occlusal surface of its molars to obtain a new maxillary occlusal plate body two. That is, add one attachment 1 3 on each side and add a limiting block 5 in front of each attachment 1 3. Select one of the mandibular occlusal plate bodies and add a corresponding set of attachment 2 4 at a suitable position on the occlusal surface of its molars to obtain a new mandibular occlusal plate body two. It should be noted that the maxillary occlusal plate body one, attachment 1 3 and limiting block 5 are all integrally formed. The position setting of attachment 1 3 and attachment 2 4 here should be such that when the upper and lower teeth occlude tightly, the upper and lower jaws are in the spatial position designed by the virtual surgery.

[0050] S6. Select another maxillary occlusal plate body one and add a new set of attachments 1 3 to its occlusal surface to obtain maxillary occlusal plate body three. The height of attachments 1 3 here is 1 mm lower than that of attachments 1 3 in S5, and the position is moved forward by one tooth position. Select another mandibular occlusal plate body one and add a new set of attachments 2 4 to its occlusal surface to obtain mandibular occlusal plate body three. Attachments 2 4 here are set vertically to correspond with attachments 1 3 of maxillary occlusal plate body three.

[0051] S7. Repeat steps S6, and so on, to obtain the maxillary occlusal plate body N and the mandibular occlusal plate body N, until the height of the last selected set of attachments 1-3 or attachment 2-4 drops to 0mm or is located in the incisor region.

[0052] S8. Import the data information of multiple maxillary clasp bodies 1 and mandibular clasp bodies 2 obtained in steps S4-S7 into the 3D printing system, and use CAD / CAM to produce a complete sequential full-enclosed clasp kit. After low-temperature plasma sterilization, it is ready for use. The full-enclosed clasp kit is obtained through digital + 3D printing, which has high precision and can achieve more accurate correction.

[0053] A method of using a sequential, fully enclosed plywood kit includes the following steps:

[0054] A. During the operation, the osteotomy was performed according to the standard procedure. After confirming that the bone segments were fully freed, the first maxillary syndesmotic plate and the first mandibular syndesmotic plate were respectively inserted. The position of the high point between the bone segments was determined based on whether they could just cover the dentition and was adjusted to ensure that the entire dentition was intact and passively incorporated into the syndesmotic plate.

[0055] B. 3-5 days after surgery, when the patient's facial swelling gradually subsides, replace the maxillary occlusal plate body 2 and mandibular occlusal plate body 2 with the maxillary occlusal plate body 2, and instruct the patient to move the mandible forward on their own to find the designed occlusal position, and practice every day.

[0056] C. After one week, switch to the maxillary occlusal plate body 3 and the mandibular occlusal plate body 3, and continue to instruct the patient to practice independently.

[0057] D. Following this pattern, approximately one month after surgery, the final set of maxillary occlusal plate N and mandibular occlusal plate N can be used. At this time, patients can consult with an orthodontist to switch to orthodontic invisible aligners. Maxillary occlusal plate I and mandibular occlusal plate I are worn during the surgery, and the maxillary occlusal plate N and mandibular occlusal plate N are replaced regularly and systematically after surgery. This improves the continuity of surgery-post-operative orthodontics, ensures a more stable postoperative occlusal relationship, reduces damage to the gums, and increases patient comfort.

[0058] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A sequential, fully enclosed plywood kit, characterized in that, It includes multiple sets of sequential, fully enclosed maxillary occlusal plates (2), each set containing one maxillary occlusal plate (2) and corresponding to one another; All maxillary occlusal plates (1) have a pair of symmetrically arranged attachments (3) on their occlusal surfaces. The longitudinal section of each attachment (3) is triangular and the end face of the front long side is the contact surface. The lower end of each attachment (3) is rounded. The attachment (3) of each set of maxillary occlusal plates is moved forward by one tooth position and its height is reduced by 1 mm compared to the attachment (3) in the previous set of occlusal plates. All mandibular occlusal plates (2) have a pair of symmetrically arranged attachments 2 (4) on their occlusal surfaces. Each attachment 2 (4) corresponds to the attachment 1 (3) on the corresponding maxillary occlusal plate (1) in each set. The longitudinal section of each attachment 2 (4) is triangular and the end face of the posterior long side is the contact surface. The contact surface of each attachment 2 (4) is parallel to the contact surface of the corresponding attachment 1 (3). The top of each attachment 2 (4) is rounded. When the mandible moves to close its mouth, the contact surface of attachment 2 (4) and the contact surface of the corresponding attachment 1 (3) guide the mandible to move. Each maxillary occlusal plate body (1) has two limiting blocks (5) symmetrically arranged on the occlusal surface, which are located in front of the two attachments (3) of the maxillary occlusal plate body (1). The distance between each limiting block (5) and the corresponding attachment (3) is adapted to the width of the top of the corresponding attachment (4).

2. The sequential, fully enclosed plywood kit according to claim 1, characterized in that, The height of Attachment 1 (3) in multiple sets of sequential full-enclosure composite plates decreases sequentially until the height of the last set of Attachment 1 (3) is 0mm or the last set of Attachment 1 (3) is located in the incisor area; The height of each of the two attachments (4) corresponding to attachment 1 (3) decreases sequentially until the height of the last set of attachments (4) is 0 mm or the last set of attachments (4) is located in the incisor area.

3. A sequential, fully enclosed plywood kit according to claim 2, characterized in that, The distance between two attachments (3) on the same side in two adjacent sets of sequential full-enclosed composite plates is one tooth position; the distance between two attachments (4) on the same side in two adjacent sets of sequential full-enclosed composite plates is one tooth position.

4. A method for preparing a sequential, fully enclosed plywood kit as described in any one of claims 1-3, characterized in that, Includes the following steps: S1. The patient underwent a preoperative spiral CT scan and intraoral digital scanning. S2. Reconstruct the CT data into a 3D model in the software and fit it with the intraoral scan data to generate a high-precision virtual model. S3. Design a surgical plan and perform virtual surgery in the software to obtain the spatial positional relationship of the dental bone segments after surgery; S4. Based on the virtual postoperative dentition design, a sequential, fully enclosed dentition kit is designed, including multiple maxillary dentition body 1 and mandibular dentition body 1. S5. Select one of the maxillary occlusal plate bodies and add a set of attachments 1 (3) and a limiting block (5) at a suitable position on the occlusal surface of its molars to obtain a new maxillary occlusal plate body 2. Select one of the mandibular occlusal plate bodies and add a corresponding set of attachments 2 (4) at a suitable position on the occlusal surface of its molars to obtain a new mandibular occlusal plate body 2. The positions of attachments 1 (3) and attachments 2 (4) here should be set so that when the upper and lower teeth occlude closely, the upper and lower jaws are in the spatial position designed by the virtual surgery. S6. Select another maxillary occlusal plate body one and add a new set of attachment one (3) to its occlusal surface to obtain maxillary occlusal plate body three. The height of attachment one (3) here is 1mm lower than that of attachment one (3) in S5, and the position is moved forward by one tooth position. Select another mandibular occlusal plate body one and add a new set of attachment two (4) to its occlusal surface to obtain mandibular occlusal plate body three. Attachment two (4) here is set up vertically and vertically corresponding to attachment one (3) of maxillary occlusal plate body three. S7. Repeat steps S6, and so on, until the height of the last selected set of attachments drops to 0mm or is located in the incisor area; S8. Import the data information of multiple maxillary cladding bodies (1) and mandibular cladding bodies (2) obtained in steps S4-S7 into the 3D printing system, and use CAD / CAM to make a complete sequential full-enclosed cladding kit, which is then sterilized by low-temperature plasma for later use.

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