Composite biting device and its manufacturing method

Abstract

This invention relates to the technical field of medical devices, and more particularly to a composite occlusal device and its manufacturing method, comprising an upper brace, a lower brace, a stabilizing component, and an orthodontic component. When the two first occlusal surfaces bite each other, the mandible protrudes forward a first distance relative to the upper brace to achieve primary traction of the mandible; when the two second occlusal surfaces bite each other, the mandible protrudes forward a second distance relative to the upper brace based on the first distance to achieve secondary traction of the mandible. The beneficial effect is that the stabilizing component and the orthodontic component do not work simultaneously, but always work independently, and the stabilizing component always works first, followed by the orthodontic component. In this way, the mandible can be protruded in advance before orthodontic treatment, reducing the discomfort when the orthodontic component takes effect, which is also conducive to improving the orthodontic effect, and avoiding the problems of excessive cost and complicated replacement process caused by using two sets of devices.

Description

Technical Field

[0001] This invention relates to the technical field of medical devices, and in particular to a composite occlusal device and its manufacturing method. Background Technology

[0002] In the clinical treatment of temporomandibular joint disorder, disc displacement is a common and complex pathological condition, especially in patients with limited mouth opening, joint locking, or chronic pain. Arthroscopic surgery has become an effective minimally invasive intervention. The key postoperative rehabilitation aspect lies in maintaining the repositioned state of the disc and guiding mandibular movement back to its physiological pattern to prevent recurrence. Currently, jaw pads or occlusal splints are commonly used in clinical practice for postoperative adjuvant therapy. These devices primarily adjust the mandibular position by altering the occlusal relationship, reducing joint load, and promoting tissue healing.

[0003] However, traditional jaw pads are mostly statically designed with limited functionality, typically only capable of fixed forward displacement of the mandible, lacking dynamic guidance and graded control over the mandibular movement process. Although they possess some traction function, they often apply a large amount of forward displacement at once, easily leading to muscle discomfort, joint swelling and pain, and even inducing new functional impairments in patients, especially in the early postoperative period when tissue sensitivity is high, resulting in poor patient compliance. Summary of the Invention

[0004] Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a composite occlusal device and its manufacturing method, which solves the technical problems of poor patient compliance caused by the single function and single-stage traction of the existing occlusal pad or occlusal plate devices for postoperative adjuvant treatment.

[0006] Technical solution

[0007] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] In a first aspect, the present invention provides a composite occlusal device, comprising an upper brace, a lower brace, a stabilizing component, and an orthodontic component;

[0009] The stabilizing component includes an upper stabilizing block fixedly connected to the upper brace and a lower stabilizing block fixedly connected to the lower brace. Two first occlusal surfaces are formed on the upper and lower stabilizing blocks to cooperate with each other. When the two first occlusal surfaces occlude with each other, the mandible protrudes forward a first distance relative to the upper brace to achieve first-level traction of the mandible.

[0010] The orthodontic components include an upper occlusal pad fixedly connected to the upper braces and a lower occlusal pad fixedly connected to the lower braces. The upper and lower occlusal pads form two second occlusal surfaces that can cooperate with each other. When the two second occlusal surfaces occlude, the mandible protrudes forward relative to the upper braces by a second distance based on a first distance to achieve secondary traction of the mandible.

[0011] In one technical solution of the present invention, the first engagement surface corresponding to the lower stabilizing block includes a first guide surface and a second guide surface that are smoothly connected to each other and set at an angle, and the second guide surface protrudes rearward relative to the first guide surface.

[0012] In one embodiment of the present invention, the stabilizing component and the corrective component are detachably and fixedly connected to the corresponding upper and lower braces.

[0013] In one technical solution of the present invention, the stabilizing component and the correcting component are configured with multiple angles and sizes to form multiple stability levels and correction levels.

[0014] In one embodiment of the present invention, both the stabilizing component and the orthodontic component are located on the inside of the teeth.

[0015] In one technical solution of the present invention, a guide groove and a guide protrusion are formed on the upper stabilizing block and the lower stabilizing block, respectively; when the upper stabilizing block and the lower stabilizing block are engaged, the guide groove and the guide protrusion can cooperate with each other to achieve the occlusal positioning of the mandible.

[0016] In one technical solution of the present invention, the composite occlusal device is used as a corrective device for arthroscopic disc repositioning surgery.

[0017] Secondly, the present invention provides a method for manufacturing a composite occlusal device, suitable for producing the composite occlusal device described in the above-mentioned technical solution, the method comprising:

[0018] S1: Determine the patient's actual occlusal dynamics;

[0019] S2: Based on actual occlusal dynamics, produce composite occlusal devices.

[0020] In one technical solution of the present invention, the actual occlusal dynamics of the patient are determined by using multi-dimensional integrated diagnostic information from CT, MRI, and jawbone frames.

[0021] Beneficial effects

[0022] The beneficial effects of the present invention are as follows: The composite occlusal device of the present invention has a stabilizing component including an upper stabilizing block and a lower stabilizing block. When the patient wears the occlusal device of the present invention, when closing the lower teeth, the first occlusal surfaces on the upper stabilizing block and the lower stabilizing block will always cooperate with each other, thereby pulling the patient's mandible forward by a small first distance. In this way, the position of the articular disc can be stabilized after arthroscopic surgery. At the same time, since the first distance is not too large, it will not cause discomfort to the patient.

[0023] When the patient continues to bite, the two second occlusal surfaces engage, and under the traction effect of the engagement of the two second occlusal surfaces, the lower occlusal pad will pull the mandible forward by a second distance. At this time, the upper and lower stabilizing blocks disengage, and the orthodontic components play a role in correcting the mandible.

[0024] The stabilizing and corrective components do not work simultaneously; they always work independently, with the stabilizing component always taking effect first, followed by the corrective component. This allows the mandible to be protruded before correction begins, reducing discomfort when the corrective component takes effect and improving the overall correction outcome. Because this occlusal appliance combines the functions of stabilizing and correcting the mandible, it offers greater flexibility in use and avoids the excessive costs and complex replacement processes associated with using two separate appliances. Attached Figure Description

[0025] Figure 1 One of the structural schematic diagrams of the composite bite device worn by the wearer of the present invention;

[0026] Figure 2 The second schematic diagram shows the structure of the composite bite device worn by the wearer of this invention;

[0027] Figure 3 The third schematic diagram shows the structure of the composite bite device worn by the wearer of the present invention;

[0028] Figure 4 Fourth schematic diagram of the structure of the composite bite device worn by the wearer of the present invention;

[0029] Figure 5 Fifth schematic diagram of the structure of the composite bite device worn by the wearer of the present invention;

[0030] Figure 6 For the present invention Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0031] Figure 7 For the present invention Figure 3 A magnified view of the structure at point B in the middle;

[0032] Figure 8 For the present invention Figure 4A magnified schematic diagram of the local structure at point C;

[0033] Figure 9 For the present invention Figure 5 A magnified schematic diagram of the local structure at point D;

[0034] Figure 10 This is one of the structural schematic diagrams of the first interlocking surface on the lower stabilizing block of the present invention being a stepped structure;

[0035] Figure 11 This is the second structural schematic diagram of the present invention when the first interlocking surface on the stabilizing block is a stepped structure;

[0036] Figure 12 This is a schematic diagram of the upper or lower stabilizing block of the present invention;

[0037] Figure 13 This is a schematic diagram of the structure of the upper or lower stabilizing block of the present invention when it is engaged with the upper or lower dental brace;

[0038] Figure 14 One of the structural schematic diagrams of an upper stabilizing block and a lower stabilizing block having guide grooves and guide protrusions;

[0039] Figure 15 This is one of the structural schematic diagrams of an upper stabilizing block and a lower stabilizing block with guide grooves and guide protrusions.

[0040] Explanation of reference numerals in the attached figures

[0041] 1: Getting braces;

[0042] 2: Lower braces;

[0043] 3: Stabilizing component; 31: Upper stabilizing block; 32: Lower stabilizing block; 3a: First engagement surface; 3aa: First guide surface; 3ab: Second guide surface;

[0044] 3b: Guide groove; 3c: Guide protrusion;

[0045] 4: Orthodontic components; 41: Upper occlusal pad; 42: Lower occlusal pad; 4a: Second occlusal surface;

[0046] 5: Insert block; X: Slot. Detailed Implementation

[0047] To better explain and facilitate understanding of this invention, the following description is provided in conjunction with the appendix. Figures 1-15 The present invention will be described in detail through specific embodiments. In this document, directional terms such as "upper" and "lower" are used interchangeably with other directional terms. Figure 1 The orientation is used as a reference.

[0048] Example 1:

[0049] Reference Figures 1-15 An embodiment of the present invention provides a composite occlusal device, including an upper dental brace 1 and a lower dental brace 2 respectively connected to the patient's upper and lower teeth, a stabilizing component 3, and an orthodontic component 4; the stabilizing component 3 includes an upper stabilizing block 31 fixedly connected to the upper dental brace 1 and a lower stabilizing block 32 fixedly connected to the lower dental brace 2, wherein the upper stabilizing block 31 and the lower stabilizing block 32 respectively form mutually cooperating first occlusal surfaces 3a. When the two first occlusal surfaces 3a occlude with each other, under the action of the inclined surfaces of the two first occlusal surfaces 3a, the mandible phase... The upper brace 1 is extended forward by a first distance to achieve primary traction of the mandible; the orthodontic component 4 includes an upper occlusal pad 41 fixedly connected to the upper brace 1 and a lower occlusal pad 42 fixedly connected to the lower brace 2. The upper occlusal pad 41 and the lower occlusal pad 42 are respectively formed with second occlusal surfaces 4a that can cooperate with each other. When the two second occlusal surfaces 4a occlude, under the interaction of the two second occlusal surfaces 4a, the mandible is extended forward by a second distance relative to the upper brace 1 based on the first distance to achieve secondary traction of the mandible.

[0050] In this embodiment, when the patient wears the occlusal device and performs centric occlusion, the first occlusal surfaces 3a on the upper stabilizing block 31 and the lower stabilizing block 32 always cooperate with each other. The upper stabilizing block 31 exerts a continuous forward thrust on the lower stabilizing block 32, causing the mandible to move forward a predetermined first distance relative to the skull base. The thrust and the first distance are set to be sufficient to maintain the anatomical repositioning of the articular disc-condylar complex after temporomandibular arthroscopy without inducing masticatory muscle spasm or temporomandibular joint pain, thereby reducing the risk of postoperative disc redislocation and improving patient compliance.

[0051] When the patient continues to bite, the two second occlusal surfaces 4a engage, and the upper occlusal pad 41 exerts a continuous forward pushing force on the lower occlusal pad 42. Under the traction effect after the two second occlusal surfaces 4a engage, the lower occlusal pad 42 will pull the mandible forward by a second distance. At this time, the upper stabilizing block 31 and the lower stabilizing block 32 disengage, and the orthodontic component 4 plays the role of correcting the mandible.

[0052] Stabilizing component 3 and corrective component 4 do not work simultaneously; they always work independently, with stabilizing component 3 always taking effect first, followed by corrective component 4. This allows the mandible to be protruded before correction begins, reducing discomfort when corrective component 4 takes effect and improving the overall correction outcome. Because this occlusal appliance combines the functions of stabilizing and correcting the mandible, it offers greater flexibility and avoids the high costs and complex replacement issues associated with using two separate appliances.

[0053] Specifically, the upper brace 1 and the lower brace 2 can be made of polymer materials. The stabilizing component 3 includes an upper stabilizing block 31 fixed to the upper brace 1 and a lower stabilizing block 32 fixed to the lower brace 2. Spatially, the lower stabilizing block 32 is further forward and the upper stabilizing block 31 is further back. Their surfaces are treated with microtexture to form mutually interlocking surfaces. When the patient closes his lower teeth, the lateral force generated by the contact between the front end of the upper stabilizing block 31 and the rear end of the lower stabilizing block 32 can pull the mandible forward by about 2-3 mm, i.e., the first distance. This satisfies the forward traction requirement for postoperative disc repositioning and avoids excessive forward protrusion that could cause muscle spasms or pain. The orthodontic component 4 is achieved through the occlusal pad at the back of the upper brace 1. When the patient bites further, the two second occlusal surfaces 4a cooperate with each other. The second occlusal surface 4a of the upper occlusal pad 41 is the front end surface, and the second occlusal surface 4a of the lower occlusal pad 42 is the rear end surface. This causes the lower occlusal pad to drive the lower brace and the mandible to slide along the preset trajectory, so that the mandible moves forward another 2-4mm on the basis of the original protrusion, which is the second distance. At this stage, the contact between the upper stabilizing block 31 and the lower stabilizing block 32 is released, so that the orthodontic force is concentrated on the mandible, and the support force of the stabilizing component is avoided from interfering with the orthodontic effect.

[0054] In this embodiment, when the patient performs the initial occlusion, the mandible slides forward under the action of occlusal force, resulting in an anterior displacement of 2-3 mm. At this time, the stabilizing component 3 provides a certain continuous traction force through surface contact. As the occlusal depth increases, the occlusion of the lower occlusal pad 42 and the upper occlusal pad 41 will guide the mandible to produce additional anterior displacement, at which time the two first occlusal surfaces 3a disengage from each other.

[0055] Specifically, stabilizing component 3 is positioned on the upper and lower braces corresponding to the wearer's molars, while orthodontic component 4 is positioned on the upper and lower braces corresponding to the wearer's incisors, ensuring sufficient spacing between them to facilitate the need for graded traction of the mandible. Furthermore, stabilizing component 3 consists of two symmetrical sets, while orthodontic component 4 is a single set located in the middle of the braces.

[0056] Two sets of symmetrical stabilizing components 3 can improve the stability and effectiveness of the device during use. A set of orthodontic components 4 located in the middle of the braces can reduce the impact of the device on the eating process. The wearer can avoid the impact of the orthodontic components 4 by eating sideways, which improves the wearer's acceptance and comfort.

[0057] When stabilizing component 3 is active, it corresponds to the wearer's mandible not being fully closed to the maxilla. For most people, this is a relatively relaxed state, thus it helps to stabilize and maintain the position of the mandible. The state of complete occlusion corresponds to the state where corrective component 4 is active, which requires conscious effort from the wearer.

[0058] Furthermore, the first occlusal surface 3a on the lower brace 2 can be further configured as a stepped structure so that the two first occlusal surfaces 3a have the ability to pull the mandible in multiple stages during the engagement process, thereby further improving the flexibility of the device.

[0059] Specifically, see Figure 10 and Figure 11 The first occlusal surface 3a on the lower brace 2 includes a first guide surface 3aa and a second guide surface 3ab that are smoothly connected to each other and set at an angle. The second guide surface 3ab protrudes backward relative to the first guide surface 3aa, so that when the second guide surface 3ab engages with the first occlusal surface 3a of the upper stabilizing block 31, it further pulls the mandible forward.

[0060] Meanwhile, when the wearer is fully relaxed, the length and angle of the upper stabilizing block 31 and the lower stabilizing block 32 can be adjusted to allow the first guide surface 3aa and the corresponding first occlusal surface 3a to work together to provide stability. When the wearer is partially relaxed, i.e., in a light occlusal state, the second guide surface 3ab works with the corresponding first occlusal surface 3a to provide stability, giving the wearer more diverse options and further improving the comfort of using the device.

[0061] The inclination of the second occlusal surface 4a on the upper brace 1 is greater than the inclination of the second occlusal surface 4a on the lower brace 2 relative to the vertical direction. Therefore, when the two occlude, the second occlusal surface 4a on the upper brace 1 will pull the second occlusal surface 4a on the lower brace 2 forward, thereby achieving the orthodontic process. Furthermore, the two second occlusal surfaces 4a can only cooperate with each other after the two first occlusal surfaces 3a have engaged.

[0062] Example 2:

[0063] Reference Figures 1-15 In addition to possessing all the technical solutions of the above embodiments, the embodiments of the present invention further possess the following technical solutions:

[0064] The stabilizing component 3 and the orthodontic component 4 are detachably and fixedly connected to the corresponding upper brace 1 and lower brace 2.

[0065] In this embodiment, the modular and detachable structural design gives the device extremely high clinical adaptability and treatment flexibility. Physicians can easily replace or reconfigure the stabilizing blocks and occlusal pads according to the patient's specific needs at different stages of rehabilitation, such as adjustments to traction force, changes in repositioning targets, or oral hygiene maintenance requirements. For example, a component with higher traction can be used in the early postoperative period to achieve rapid repositioning, and then replaced with a maintenance component to consolidate the therapeutic effect after the joint has adapted; or functional components can be removed individually when cleaning the braces to avoid contamination of the entire device, improving patient comfort and compliance. Furthermore, the detachable design facilitates the disinfection, maintenance, and long-term use of the device, reducing the risk of overall device failure due to component damage and extending its service life.

[0066] Stabilizing component 3 and corrective component 4 are available in various angles and sizes to achieve multiple levels of stability and correction. Each model differs in structural height, tilt angle, contact area, or guiding inclination, resulting in different levels of stability and corrective force. For example, stabilizing component 3 offers low, medium, and high stability levels, corresponding to different depths and locking strengths of the first occlusal surface 3a, suitable for different clinical needs ranging from mild loosening to strong guidance. Corrective component 4 offers upper occlusal pads 41 with various protrusion amounts and vertical heights, achieving secondary traction effects ranging from gentle to significant. These different component models can be used with detachable connection structures, allowing physicians to flexibly select and combine the most suitable stability and correction levels based on preoperative imaging assessments, intraoperative joint status, postoperative recovery progress, and individual tolerance. In the early stages of rehabilitation, a combination of high stability and medium correction can be used to ensure stable repositioning of the joint disc; as function gradually recovers, a transition to medium stability combined with progressive corrective component 4 can be achieved to train the coordination and proprioception of the periarticular muscles. This multi-model, modular configuration strategy not only enhances the device's adaptability to meet the needs of patients with different anatomical features and pathological degrees, but also makes the treatment process more refined and step-by-step, avoiding the risks of over-traction or under-correction. Combined with the ease of cleaning and flexibility of component replacement brought by the detachable design, the entire system significantly improves patient comfort, treatment safety, and long-term compliance while ensuring precise mechanical transmission. This helps accelerate postoperative functional reconstruction, reduce recurrence rates, and achieve better clinical rehabilitation outcomes.

[0067] Example 3:

[0068] Reference Figures 1-15 In addition to possessing all the technical solutions of the above embodiments, the embodiments of the present invention further possess the following technical solutions:

[0069] The upper brace 1 and the lower brace 2 are provided with inserts 5 that correspond one-to-one with the upper stabilizing block 31, the lower stabilizing block 32, the upper occlusal pad 41 and the lower occlusal pad 42. The upper stabilizing block 31, the lower stabilizing block 32, the upper occlusal pad 41 and the lower occlusal pad 42 are all provided with slots X.

[0070] The upper stabilizing block 31 and the upper engagement pad 41 can make the slot X and the insert block 5 engage from bottom to top, and the lower stabilizing block 32 and the lower engagement pad 42 can make the slot X and the insert block 5 engage from top to bottom.

[0071] In this way, the wearer's biting action helps the stabilizing component 3 and the orthodontic component 4 to establish a connection with the upper braces 1 and the lower braces 2, thereby effectively preventing them from falling off and improving the reliability of the stabilizing component 3 and the orthodontic component 4.

[0072] Specifically, the plug block 5 and the slot X can be set as a T-shaped block and a T-shaped slot, respectively.

[0073] More specifically, locking protrusions and locking grooves can be provided on the T-block and T-slot to improve the locking reliability. Locking can also be achieved through an interference fit.

[0074] Example 4:

[0075] Reference Figures 1-9 In addition to possessing all the technical solutions of the above embodiments, the embodiments of the present invention further possess the following technical solutions:

[0076] Both stabilizing component 3 and orthodontic component 4 are located on the inner side of the teeth, near the lingual or palatal side. This layout fully considers patient comfort, aesthetics, and the naturalness of oral function. Placing the functional components on the inner side of the teeth avoids protruding structures on the labial or buccal side, significantly reducing friction and pressure on the soft tissues of the lips, minimizing the foreign body sensation and mucosal irritation commonly experienced in the initial stages of wear, and improving patient tolerance and compliance. Simultaneously, the inner placement makes the overall appearance of the appliance more discreet, less noticeable in daily communication or social situations, effectively alleviating the psychological burden associated with wearing orthodontic appliances. Furthermore, this position is closer to the biomechanical axis of the temporomandibular joint, helping to transmit traction force along a more physiologically aligned path, reducing unnecessary lateral forces or rotational torques, thereby improving the accuracy and stability of disc repositioning.

[0077] Example 5:

[0078] Reference Figure 14 and Figure 15 In addition to possessing all the technical solutions of the above embodiments, the embodiments of the present invention further possess the following technical solutions:

[0079] Guide grooves 3b and guide protrusions 3c are formed on the upper stabilizing block 31 and the lower stabilizing block 32, respectively. When the upper stabilizing block 31 and the lower stabilizing block 32 are engaged, the guide grooves 3b and guide protrusions 3c can cooperate with each other to achieve the occlusal positioning of the mandible.

[0080] In this embodiment, when the upper and lower braces 2 are closed and the stabilizing blocks are close to each other, the guide protrusion 3c can accurately insert into the corresponding guide groove 3b, achieving mechanical guidance and limitation. This guiding structure plays a positioning role when the patient performs biting actions, ensuring that the upper stabilizing block 31 and the lower stabilizing block 32 always complete the engagement along the preset path and angle, avoiding deviation of the traction direction due to lateral slippage, rotation, or misalignment. The cooperation between the guide groove 3b and the guide protrusion 3c not only speeds up the biting positioning, allowing the patient to reach the target mandibular position more naturally and conveniently in daily use, but also significantly improves the consistency of biting repositioning each time, which is crucial for establishing a stable physiological mandibular position in the early postoperative period. Especially when the patient's muscles are still in the adaptation or spasm recovery stage, this guiding mechanism can help them quickly and accurately find the correct protrusion position, reducing the adverse effects caused by subjective judgment errors.

[0081] Specifically, the guide groove 3b and the guide protrusion 3c are both provided on the corresponding first engagement surface 3a to ensure that they can fit together and play a guiding role when the two first engagement surfaces 3a are engaged.

[0082] Example 6:

[0083] As a corrective device for arthroscopic disc repositioning surgery, the composite occlusal device after arthroscopic disc repositioning surgery possesses all the beneficial effects of the occlusal device in any of the above embodiments.

[0084] After arthroscopic disc reduction surgery, the inflammatory response within the joint cavity has not yet completely subsided, and the disc, surrounding ligaments, and synovial tissues are in the early stages of repair. Maintaining the stable position of the mandible and avoiding abnormal movement is crucial at this time. When the patient wears this device, the stabilizing component 3 first functions during mouth closure. Through the precise engagement of the upper stabilizing block 31 on the upper brace 1 and the lower stabilizing block 32 on the lower brace 2, it guides the mandible to produce a moderate protruding displacement of the first distance, achieving primary traction. This traction amount, precisely assessed and set preoperatively, is sufficient to maintain the normal anatomical relationship between the disc and condyle, preventing redislocation due to muscle spasm or habitual retraction in the early postoperative period. Simultaneously, because its displacement is gentle, it does not cause excessive traction on the newly reduced joint tissues, effectively reducing postoperative pain and discomfort, facilitating rapid adaptation and continued use by the patient, and ensuring the initial stability of the reduction result.

[0085] As the patient actively performs deeper biting movements during rehabilitation training, the orthopedic component 4 is then engaged. Because this device can achieve secondary traction during use, this process is designed so that the stabilizing component 3 and the orthopedic component 4 do not activate simultaneously. That is, when the orthopedic component 4 takes effect, the upper stabilizing block 31 and the lower stabilizing block 32 have already disengaged, ensuring clear functional switching without interference. This phased, progressive traction mechanism simulates the physiological mandibular protrusion process, allowing the posterior band of the articular disc to smoothly and fully cover the anterior edge of the condyle, significantly increasing the joint space, relieving intra-articular pressure, and providing a favorable biomechanical environment for the repair of synovial and ligamentous tissues. Crucially, because secondary traction is performed on the basis of primary stability, the mandible has already pre-adapted to a partially protruding state. Therefore, when entering a deeper corrected position, the muscle tension felt by the patient is significantly reduced, effectively avoiding muscle tension or severe joint pain caused by sudden, large-scale anterior displacement, thus improving the safety and comfort of the treatment.

[0086] In addition, the device integrates stabilization and correction functions into one unit, eliminating the need to replace two separate devices at different stages after surgery. This avoids treatment interruptions, loss of occlusal reference, and additional impression, manufacturing costs, and clinical follow-up visits caused by the replacement process.

[0087] Example 7:

[0088] Embodiments of the present invention provide a method for manufacturing a composite occlusal device, suitable for producing composite occlusal devices as described in any of the above embodiments. The manufacturing method includes:

[0089] S1: Determine the patient's actual occlusal dynamics;

[0090] S2: Based on actual occlusal dynamics, produce composite occlusal devices.

[0091] Determining the patient's actual occlusal dynamics involves using multi-dimensional integrated diagnostic information from CT, MRI, and jawbone systems to determine the patient's actual occlusal dynamics.

[0092] In this embodiment, the method for manufacturing the composite occlusal device aims to precisely adapt to the individualized anatomical structure and postoperative rehabilitation needs of the patient, ensuring that the manufactured device can effectively achieve stable repositioning and functional reconstruction of the temporomandibular joint disc after arthroscopic surgery. The method includes comprehensively collecting and analyzing the patient's actual occlusal dynamics, and customizing the production of the composite occlusal device based on this dynamic data.

[0093] In step S1, determining the patient's actual occlusal dynamics is not based on a single image or static model, but rather on the integration of multi-dimensional information from CT, MRI, and a mechanical jawbone system. CT provides precise three-dimensional morphology of the bony structures, including the bony relationships of the maxilla, mandible, and temporomandibular joint; MRI clearly presents the position, shape, and relative relationship of the articular disc to the condyle, especially the dynamic changes in open and closed mouth positions, which can determine whether there is anterior disc displacement, deformation, or adhesion. By importing the above image data into a digital analysis system and combining it with facebow transfer technology, the patient's mandibular movement trajectory relative to the skull base is precisely transferred to an adjustable jawbone system, constructing a virtual or physical model that can simulate the real mandibular movement path. Based on this, the patient's mandibular protrusion, lateral range of motion, and vertical opening under ideal postoperative repositioning are further recorded, comprehensively forming a "real occlusal dynamics" database that includes spatial position, movement trajectory, and occlusal contact characteristics. This process not only reflects static anatomy but also captures key parameters in functional movement, providing a physiological basis for subsequent device design.

[0094] In step S2, based on the acquired actual occlusal dynamic data, a composite occlusal device is produced using digital design and manufacturing technology. First, software is used to construct the inner fit of the upper brace 1 and lower brace 2, ensuring a high degree of fit with the lingual / palatal contours of the patient's dentition, balancing retention and comfort. Then, according to the preset primary traction distance, the relative positions of the upper stabilizing block 31 and lower stabilizing block 32 are simulated on a virtual articulator, and their occlusal surface angles, guide grooves 3b, and guide protrusions 3c are designed to ensure stable fit and precise guidance in the target protrusion position. Simultaneously, this allows the mandible to smoothly slide to its final functional position during the secondary traction stage. All components are parametrically modeled according to multi-model standards, facilitating the selection of the appropriate fit level based on clinical needs. Finally, the brace body is integrally molded using biocompatible medical materials through high-precision 3D printing or CNC machining technology, and detachable stabilizing blocks, occlusal pads, and other modules are processed into independent parts through standardized interface structures, achieving modular assembly of the device. This manufacturing method not only ensures a high degree of consistency between the device and the patient's individual occlusal dynamics, but also supports the replacement of different models of functional components during postoperative follow-up based on the recovery status, enabling dynamic adjustment and long-term use, and significantly improving the accuracy, repeatability and clinical adaptability of the treatment.

[0095] It can be understood that, except for conflicting parts, the above embodiments 1-7 can be freely combined to form other embodiments of the present invention.

[0096] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0097] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0098] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0099] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0100] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A composite occlusal device, characterized in that: It includes upper braces (1), lower braces (2), stabilizing components (3) and corrective components (4); The stabilizing component (3) includes an upper stabilizing block (31) fixedly connected to the upper brace (1) and a lower stabilizing block (32) fixedly connected to the lower brace (2), and two first occlusal surfaces (3a) are formed on the two to cooperate with each other. The orthodontic component (4) includes an upper occlusal pad (41) fixedly connected to the upper brace (1) and a lower occlusal pad (42) fixedly connected to the lower brace (2), and two second occlusal surfaces (4a) are formed on the two that can cooperate with each other. When the two first occlusal surfaces (3a) bite each other, the mandible protrudes a first distance relative to the upper brace (1) to achieve primary traction of the mandible; when the two second occlusal surfaces (4a) bite each other, the mandible protrudes a second distance relative to the upper brace (1) based on the first distance to achieve secondary traction of the mandible.

2. The composite occlusal device as described in claim 1, characterized in that: The first engagement surface (3a) corresponding to the lower stabilizing block (32) includes a first guide surface (3aa) and a second guide surface (3ab) that are smoothly connected to each other and set at an angle. The second guide surface (3ab) protrudes backward relative to the first guide surface (3aa).

3. The composite occlusal device as described in claim 1, characterized in that: The stabilizing component (3) and the corrective component (4) are detachably and fixedly connected to the corresponding upper brace (1) and lower brace (2).

4. The composite occlusal device as described in claim 2, characterized in that: The stabilizing component (3) and the correcting component (4) are configured with various angles and sizes to form various stability levels and correction levels.

5. The composite occlusal device as described in claim 1, characterized in that: Both the stabilizing component (3) and the orthodontic component (4) are located on the inside of the teeth.

6. The composite occlusal device as described in claim 1, characterized in that: Guide grooves (3b) and guide protrusions (3c) are formed on the upper stabilizing block (31) and the lower stabilizing block (32), respectively. When the upper stabilizing block (31) and the lower stabilizing block (32) are engaged, the guide grooves (3b) and the guide protrusions (3c) can engage with each other to achieve the occlusal positioning of the mandible.

7. The composite occlusal device as described in any one of claims 1-6, characterized in that: The composite occlusal device serves as a corrective device for arthroscopic disc repositioning surgery.

8. A method for manufacturing a composite occlusal device, suitable for producing a composite occlusal device as described in any one of claims 1-6, characterized in that: The manufacturing method includes: S1: Determine the patient's actual occlusal dynamics; S2: Based on the actual occlusal dynamics, produce the composite occlusal device.

9. The method for manufacturing the composite occlusal device as described in claim 8, characterized in that: The determination of the patient's actual occlusal dynamics specifically involves using multi-dimensional integrated diagnostic information from CT, MRI, and jawbone systems to determine the patient's actual occlusal dynamics.

Images