An occlusal quantification elevation aid

Abstract

The utility model belongs to oral cavity occlusion relation making technical field, concretely relates to a kind of occlusion quantitative lifting auxiliary tool.The utility model solves the problem that direct making method cannot quantitatively lift occlusion, relies on patient training and doctor experience problem, and the accurate control of vertical distance is realized by standardization structure design, completely avoid the recording error caused by unstable occlusion height, material deformation, significantly improve the manufacturing precision of occlusal plate and other oral cavity devices.Through the modularization design of replaceable occlusion part, mandibular guide slide block, maxillary guide slide block and other modules, it is suitable for all occlusion relation making scenes of vertical distance lifting required by dental and jaw patients, covers a variety of horizontal relations such as muscle position, stable position, forward position, solves the defects that existing tool function is single and only suitable for snoring device manufacturing, simultaneously compatible with traditional wax sheet, occlusion record silicone rubber and other materials, and digital optical scanner direct making modern mode, meet different clinical operation needs.

Description

Technical Field

[0001] This utility model belongs to the field of oral occlusion relationship measurement technology, specifically relating to an auxiliary tool for quantitative occlusion elevation. Background Technology

[0002] Occlusal relationship refers to the contact relationship between the upper and lower teeth in static and functional states, while occlusal recording (also known as jaw position recording) is the process of accurately transferring and preserving this relationship using certain materials or techniques. In many fields of oral medicine, including prosthodontics, orthodontics, orthognathic surgery, and the diagnosis and treatment of temporomandibular joint disorders, accurate occlusal recording is a fundamental guarantee for successful treatment. Occlusal recording not only relates to the comfort and functional efficiency of prostheses but also directly affects the overall health of the oral and maxillofacial system.

[0003] Occlusal records serve multiple functions in clinical practice. First, they provide stability and support for cases of missing dentition, especially in situations with significant tooth loss or severe occlusal wear. Second, accurate occlusal records significantly reduce clinical adjustment time, improve diagnostic and treatment efficiency, and lower the risk of perforation of restorations or the need to adjust opposing teeth due to over-adjustment. From a biological perspective, occlusal contact is not merely mechanical contact, but a comprehensive reflection of the physiological activities of teeth and surrounding tissues, neuromuscular systems, and the temporomandibular joint within the craniomaxillary system, exhibiting its own unique biological laws.

[0004] Assessing the patient's occlusal relationship is the primary step in the fabrication of dental prostheses, orthodontic appliances, occlusal plates, and other dental devices, including both horizontal and vertical relationships. Occlusal plates, commonly used in the treatment of temporomandibular joint disorders, typically have a certain thickness, ranging from 1.0 to 3.0 mm at their lowest point, and gradually increasing in thickness from back to front. The vertical occlusal relationship needs to be measured after elevation. Currently, there are several commonly used clinical methods, including: 1) Direct measurement method: The wax sheet or occlusal recording silicone rubber material is placed directly on the patient's teeth, and the patient is guided to bite slowly. After biting to a certain height, the patient stops biting and the recording material is removed after it has hardened. The biggest drawback of this method is that it cannot quantitatively elevate the occlusion. The patient needs to train repeatedly to stabilize the occlusion at a certain height. It requires a high level of clinical skill from the doctor. In addition, wax as a recording material is easily damaged during transportation, and high temperature and compression can easily deform it, causing changes in the occlusal record; 2) Using occlusal elevation tools: The commonly used tools on the market include George-Gauge, ProGauge, and Protrusion Gauge. The occlusal recording material is usually placed on the horseshoe-shaped end of the tool, and the mandible is guided to protrude through the tooth groove at the handle, thereby recording the occlusal relationship of the upper and lower jaws after the mandible protrudes. The tools mentioned above are mainly used to determine the occlusal relationship when making anti-snoring devices. Their functions are relatively limited and they are not suitable for making stable occlusal plates. 3) Virtual articulator elevation: The occlusal relationship is directly elevated by using the built-in digital articulator in CAD software. This method uses average parameters, which do not completely match the actual situation of the patient. The occlusal plates made are usually not very accurate and require a lot of clinical adjustments. 4) Digital facebow: This method is currently considered the most accurate way to determine the occlusal relationship. However, the production steps are extremely complicated and time-consuming. Some patients cannot be made with this method, so its clinical application is currently limited. 5) Digital twin: This method imports the patient's CT scan, digital model and other data into a special software to form a digital virtual human. Then, the doctor adjusts the patient's jaw relationship and elevates the occlusal relationship directly in the software by combining clinical experience. It has high clinical sensitivity, but the obtained occlusal relationship often does not match the actual situation of the patient. A lot of clinical adjustments are still required.

[0005] Therefore, there is an urgent need for a new type of bite measurement elevation auxiliary tool to solve the problems existing in the use of existing tools to determine the bite relationship of patients. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide an auxiliary tool for quantitative occlusal elevation.

[0007] To achieve the above objectives, the present invention provides the following technical solution: This utility model provides an auxiliary tool for quantitative occlusal elevation, including a Y-shaped body whose upper part matches the width of the dental arch. The upper part of the Y-shaped body is detachably connected to a set of occlusal parts that facilitate posterior tooth occlusion. The lower part of the Y-shaped body has a first groove that facilitates the sliding of the mandibular guide slider and / or the maxillary guide slider or the combined mandibular guide slider. The mandibular guide slider and / or the maxillary guide slider or the combined mandibular guide slider are all provided with locking screws that allow them to be fixed with the first groove.

[0008] Specifically, the mandibular guide slider is provided with a lower tooth recess adapted to the lower teeth, the maxillary guide slider is provided with an upper tooth recess adapted to the upper teeth, and the maxillary and mandibular guide sliders are provided with upper tooth recesses and lower tooth recesses adapted to the upper and lower teeth.

[0009] Specifically, the mandibular guide slider is provided with a second groove to facilitate the sliding of the maxillary guide slider.

[0010] Furthermore, the locking screw includes a first locking screw and a second locking screw. The mandibular guide slider slides or is fixed in the first slide groove by the first locking screw. The maxillary guide slider can slide in the first slide groove and the second slide groove or be fixed in the first slide groove by the second locking screw. Fixing the maxillary guide slider does not affect the sliding of the mandibular guide slider, and fixing the mandibular guide slider does not affect the sliding of the maxillary guide slider.

[0011] Specifically, the interlocking part has a comb-like or mesh-like structure and is detachably connected to the upper part of the Y-shaped body by fastening screws or buckles on the interlocking part itself.

[0012] Specifically, the lower part of the Y-shaped body, and one side of the first slide groove, is provided with a scale line, the scale line range being -15mm to 15mm.

[0013] This utility model also provides a method for determining the occlusal relationship of the occlusal quantitative elevation auxiliary tool as described above, comprising the following steps: Step 1: Select accessories: Select appropriate Y-shaped body, occlusal part and mandibular guide slider and / or maxillary guide slider or both mandibular and maxillary guide sliders according to the patient's dental arch width and actual condition; Step 2, Intraoral adjustment: Place the occlusal part in the patient's posterior tooth area, and adjust the position of the mandibular guide slider and / or maxillary guide slider or the mandibular guide slider according to clinical needs, so that the patient's upper anterior teeth and / or lower anterior teeth bite into the corresponding mandibular guide slider and / or maxillary guide slider or the mandibular guide slider's lower tooth recess and / or upper tooth recess, and fix the position by tightening screws; Step 3: Record the engagement relationship: Based on the position of the locking screw in the previous step, record the engagement relationship for later use.

[0014] Specifically, the thickness of the occlusal portion can be adjusted according to the needs of the posterior teeth, with a thickness of 1.0-4.0 mm, so as to achieve a predetermined vertical distance elevation in the posterior tooth area.

[0015] Specifically, when used to make a stable occlusal plate, first install the mandibular guide slider on the Y-shaped body, then place the occlusal part in the patient's posterior tooth area, then position the mandibular guide slider's lower tooth incisal edge, or make the first end of the mandibular guide slider abut against the labial side of the lower anterior tooth, then tighten the first locking screw of the mandibular guide slider to lock it, and then take a record of the occlusal relationship.

[0016] Specifically, when using a repositioning occlusal plate for the edge-to-edge position of the upper and lower anterior teeth, first align the lower tooth recess of the mandibular guide slider and the upper tooth recess of the maxillary guide slider and install them on the Y-shaped body, or first install the upper and lower mandibular guide sliders on the Y-shaped body, then place the occlusal part in the posterior tooth area, adjust the upper tooth recess to correspond with the incisal edge of the upper anterior teeth, tighten the locking screw, and then guide the patient's mandible to protrude until the incisal edge of the lower anterior teeth accurately bites into the lower tooth recess to obtain the edge-to-edge position of the upper and lower anterior teeth, and then record the occlusal relationship.

[0017] Specifically, when using a repositioning occlusal plate for mandibular microprotrusion, first install both the mandibular and maxillary guide sliders onto the Y-shaped body. Then, place the occlusal portion in the posterior tooth region, adjust the maxillary guide slider so that the upper tooth incisal edge aligns with the upper anterior tooth incisal edge, and tighten the second locking screw of the maxillary guide slider. Next, adjust the mandibular guide slider to the target microprotrusion position and tighten the first locking screw of the mandibular guide slider. Then, guide the patient's mandible to protrude until the lower anterior tooth incisal edge accurately occludes with the lower tooth incisal edge. Finally, record the occlusal relationship.

[0018] Specifically, when determining the forward extension position for the anti-snoring device / mandibular advancement device (MAD), a safe and effective initial forward extension position is established for the anti-snoring device (MAD): First, place the occlusal portion in the posterior tooth region, and simultaneously adjust the upper tooth concave of the maxillary guide slider to correspond with the incisal edge of the upper anterior teeth and lock the second locking screw; then, align the lower tooth concave of the mandibular guide slider with the incisal edge of the lower anterior teeth, record the corresponding scale of the first locking screw as "0 position", and instruct the patient to actively extend the mandible to the maximum reachable position, recording the scale as "a"; then, push the mandibular guide slider to 50%-75% of a (preferably 60%), and lock the first locking screw; finally, guide the patient to extend the mandible and position the incisal edge of the lower anterior teeth in the lower tooth concave, completing the positioning; subsequently, record the occlusal relationship.

[0019] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects: This invention precisely addresses the limitations of direct occlusal imaging methods, such as the inability to quantitatively elevate the bite and reliance on patient training and physician experience. Through standardized structural design, it achieves precise control of vertical distance, completely eliminating recording errors caused by unstable bite height and material deformation. This significantly improves the fabrication accuracy of oral devices like occlusal plates and reduces subsequent clinical adjustments. Modular design, including replaceable occlusal components, mandibular guide sliders, and maxillary guide sliders, adapts to all occlusal imaging scenarios requiring vertical elevation in dental patients, covering various horizontal relationships such as muscular, stable, and protruding positions. It overcomes the limitations of existing tools like the George-Gauge, which are limited to anti-snoring device fabrication and only suitable for this purpose. Furthermore, it is compatible with traditional wax sheets, occlusal recording silicone rubber, and modern methods using digital optical scanners for direct imaging, meeting diverse clinical needs.

[0020] Furthermore, this invention eliminates the need for highly skilled clinical techniques and extensive experience-based judgment from doctors. It also avoids the cumbersome procedures of digital facebows, the technical sensitivity of digital twins, and the drawbacks of virtual articulators relying on average parameters. This simplifies the occlusal recording process, shortens recording time, and reduces the risks associated with incorrect recording, such as needing to re-doctor restorations or adjust opposing teeth. This reduces the number of follow-up visits and treatment costs, improving overall treatment efficiency. By replacing accessories of different types and thicknesses, it can flexibly adapt to the oral anatomy and treatment needs of different patients. While achieving standardized operation, it ensures personalized treatment results, solving the problem of insufficient individual adaptability in traditional methods and avoiding the shortcomings of virtual articulators and digital twins that do not match the patient's actual situation. It balances the standardization of clinical operation with the targeted nature of treatment. Attached Figure Description

[0021] The accompanying drawings are incorporated in and form part of this specification, and together with the description, serve to explain the principles of this invention.

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A top view of the present invention with the mandibular guide slider installed; Figure 2 for Figure 1 A three-dimensional structural diagram; Figure 3 for Figure 1 A lateral view of intraoral occlusion; Figure 4A three-dimensional schematic diagram of the mandibular guide slider and the maxillary guide slider of this utility model; Figure 5 for Figure 4 A lateral view of intraoral occlusion; Figure 6 A three-dimensional schematic diagram of the installation of the upper and lower jaw guide sliders of this utility model; Figure 7 for Figure 6 A lateral view of intraoral occlusion; Figure 8 This is a bottom view of the mesh-like interlocking part of the present invention. Figure 9 This is a schematic diagram of the mesh-like interlocking part structure of this utility model; Figure 10 This is an intraoral occlusal occlusal side view of the flexible material occlusal part of this utility model.

[0024] Wherein: 1 is the Y-shaped main body; 2 is the occlusal part; 3 is the mandibular guide slider; 4 is the maxillary guide slider; 5 is the upper and lower mandibular guide sliders; 6 is the first groove; 7 is the lower tooth recess; 8 is the upper tooth recess; 9 is the second groove; 10 is the first locking screw; 11 is the second locking screw. Detailed Implementation

[0025] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. The embodiments described below do not represent all embodiments consistent with this invention. Rather, they are merely examples consistent with some aspects of this invention as detailed in the appended claims.

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] This utility model provides an auxiliary tool for quantitative occlusal elevation, including a Y-shaped body 1 whose upper part matches the width of the dental arch. The upper part of the Y-shaped body 1 is detachably connected to a set of occlusal parts 2 to facilitate posterior tooth occlusion. The lower part of the Y-shaped body is provided with a first groove 6 to facilitate the sliding of the mandibular guide slider 3 and / or the maxillary guide slider 4 or the mandibular guide slider 5. The mandibular guide slider 3 and / or the maxillary guide slider 4 or the mandibular guide slider 5 are all provided with locking screws that can fix them to the first groove 6.

[0028] Specifically, the mandibular guide slider 3 is provided with a lower tooth recess 7 adapted to the lower teeth, the maxillary guide slider 4 is provided with an upper tooth recess 8 adapted to the upper teeth, and the maxillary and mandibular guide slider 5 is provided with an upper tooth recess 8 and a lower tooth recess 7 adapted to the upper and lower teeth.

[0029] Specifically, the mandibular guide slider 3 is provided with a second groove 9 to facilitate the sliding of the maxillary guide slider 4.

[0030] Furthermore, the locking screws include a first locking screw 10 and a second locking screw 11. The mandibular guide slider 3 slides or is fixed in the first slide groove 6 via the first locking screw 10. The maxillary guide slider 4 can slide or be fixed in the first slide groove 6 and the second slide groove 9 via the second locking screw 11. Fixing the maxillary guide slider 4 does not affect the sliding of the mandibular guide slider 3, and fixing the mandibular guide slider 3 does not affect the sliding of the maxillary guide slider 4.

[0031] Specifically, the interlocking part 2 has a comb-like or mesh-like structure, and is secured by fastening screws (such as...). Figure 2 , Figure 4 , Figure 6 As shown, the comb-shaped engagement part 2 is connected to the Y-shaped body 1 by fastening screws or by a snap fastener (such as...) on the engagement part itself. Figure 8 , Figure 9 As shown, the mesh-like interlocking part 2 is connected to the Y-shaped body 1 via a snap fastener and is detachably connected to the upper part of the Y-shaped body 1.

[0032] Specifically, the lower part of the Y-shaped body 1, and one side of the first slide groove 6, is provided with scale lines.

[0033] The present invention provides the following embodiments to verify the method for obtaining the occlusal relationship of the occlusal quantitative elevation auxiliary tool of the present invention.

[0034] The Y-shaped main body 1 is divided into S / M / L according to the width of the dental arch, and the coronal curvature matches that of a conventional adult dental arch. The occlusal part 2 is detachably installed on the bilateral posterior tooth support positions of the Y-shaped main body 1, with a thickness preferably of 1.0-4.0 mm and a step distance of 0.5 mm. The mandibular guide slider 3 and the maxillary guide slider 4 slide in the first groove 6 along the sagittal direction, with a thickness preferably of 0.5-2 mm and a step distance of 0.5 mm. They are clamped and locked with the threaded sleeve by the first locking screw 10 and the second locking screw 11. The front end of the first groove 6 is provided with a limiting shoulder. A scale and a reading line are used to read the displacement, with a scale preferably of 1 mm / division. The occlusal part 2 can be either strip-shaped or mesh-shaped.

[0035] The Y-shaped main body 1, mandibular guide slider 3, maxillary guide slider 4, and both mandibular and maxillary guide sliders 5 can be made of medical-grade stainless steel, titanium alloy, or high-performance polymers (such as PEEK, PA12, PEBA, etc.); the occlusal part 2 can be a sterilizable and reusable polymer or a disposable component, with a surface roughness Ra≤0.8μm in contact with the oral cavity. The occlusal part 2 can be formed by injection molding, CNC machining, or 3D printing. The occlusal recording material is dental occlusal wax, occlusal recording silicone rubber, etc.

[0036] Example 1 See Figure 1-3 As shown, this embodiment provides a method for determining the occlusal relationship of a quantitative occlusal elevation assistive tool, used to fabricate a stable occlusal plate for patients with bruxism / myogenic pain. The method determines the centric relationship and quantitative vertical distance elevation required for fabricating a stable occlusal plate, and includes the following steps: Step 1: Select accessories: Select the appropriate Y-shaped main body 1, occlusal part 2 with a thickness of 2.0 mm, and mandibular guide slider 3 according to the patient's dental arch width and actual condition; Step 2, Intraoral adjustment: First, install the mandibular guide slider 3 on the Y-shaped body 1, then place the occlusal part 2 in the patient's posterior tooth area, then position the lower tooth recess 7 of the mandibular guide slider 3 at the incisal edge of the lower anterior teeth, or make the first end of the mandibular guide slider 3 abut against the labial side of the lower anterior teeth, and then tighten the first locking screw 10 of the mandibular guide slider 3 to lock it. Step 3: Obtaining the occlusal relationship: Based on the fixed position of the first locking screw 10 in Step 2, guide the patient to gently close their mouth until the posterior teeth are evenly in contact with the occlusal part 2. Keep the tool still and perform intraoral optical scanning only on the posterior tooth area to complete the acquisition of the digital occlusal relationship for subsequent use.

[0037] Results: A predetermined vertical elevation of 2.0 mm was achieved by using the replaceable thickness occlusal portion 2; positioning only the lower anterior teeth can reduce the interference of anterior tooth guidance on the scan and improve the registration accuracy of posterior teeth.

[0038] Example 2 This embodiment provides a method for determining the occlusal relationship of a quantitative occlusal elevation aid, used to fabricate an extension and repositioning occlusal plate for the upper and lower anterior teeth at the edge-to-edge position. The fabrication of the diagnostic extension to the edge-to-edge position of the upper and lower anterior teeth repositioning occlusal plate includes the following steps: Step 1: Select accessories: Select the appropriate Y-shaped main body 1, occlusal part 2 with a thickness of 2.5 mm, mandibular guide slider 3, and maxillary guide slider 4 according to the patient's dental arch width and actual condition; Step 2, Intraoral adjustment: First, align the lower tooth recess 7 of the mandibular guide slider 3 and the upper tooth recess 8 of the maxillary guide slider 4 and install them on the Y-shaped body 1. Alternatively, first install the upper and lower jaw guide sliders 5 on the Y-shaped body 1, then place the occlusal part 2 in the posterior tooth area, adjust the upper tooth recess 8 to correspond with the incisal edge of the upper anterior teeth, tighten the first locking screw 10 and the second locking screw 11 respectively, and then guide the patient's mandible to protrude until the incisal edge of the lower anterior teeth accurately bites into the lower tooth recess 7 to obtain the edge-to-edge occlusion of the upper and lower anterior teeth. Step 3: Obtaining the occlusal relationship: Based on the fixed position of the first locking screw 10 in Step 2, scan the posterior tooth area, or use an external tool to apply PVS occlusal recording material to both sides of the occlusal part 2, reposition it in the mouth, wait for it to cure, and then remove it as a whole; after the occlusal recording material is properly trimmed, it is placed back in the corresponding position in the mouth, and the occlusal relationship is directly obtained by scanning with an intraoral scanner for subsequent use.

[0039] Effect: The forward extension of the cutting edge is limited at one time by the upper tooth recess 8 and the lower tooth recess 7, resulting in high positioning repeatability and making it easy to manufacture a forward extension repositioning device.

[0040] It should also be noted that in this embodiment, the mandibular guide slider 5 can be used directly instead of the mandibular guide slider 3 and the maxillary guide slider 4. See [link to relevant documentation]. Figure 6 and Figure 7 As shown.

[0041] Example 3 This embodiment provides a method for determining the occlusal relationship of a quantitative occlusal elevation assistive tool, used to fabricate a mandibular repositioning occlusal plate for mild mandibular protrusion (e.g., 1-2.5mm). See [link to documentation]. Figure 4 and Figure 5 As shown, it includes the following steps: Step 1: Select accessories: Select the appropriate Y-shaped main body 1, occlusal part 2 with a thickness of 2.0mm, mandibular guide slider 3, and maxillary guide slider 4 according to the patient's dental arch width and actual condition; Step 2, Intraoral adjustment: First, install both the mandibular guide slider 3 and the maxillary guide slider 4 on the Y-shaped body 1. Then, place the occlusal part 2 in the posterior tooth area, adjust the maxillary guide slider 4 so that the upper tooth incisor 8 corresponds to the upper anterior tooth incisor edge, and tighten the second locking screw 11 of the maxillary guide slider 4. Then, adjust the mandibular guide slider 3 to the target slightly protruding position and tighten the first locking screw 10 of the mandibular guide slider 3. Subsequently, guide the patient's mandible to protrude until the lower anterior tooth incisor edge accurately occludes with the lower tooth incisor 7. Step 3: Establish the bite relationship: Based on the fixed position of the first locking screw 10 in Step 2, perform a posterior tooth scan or PVS recording for subsequent use.

[0042] Results: The protrusion was set to 2.0 mm using the occlusal elevation aid; during follow-up examinations, fine adjustments within ±0.5 mm were made to optimize muscle comfort. Separate guidance for the upper and lower jaws reduced interference with the labial and lingual frenulum and periodontal tissues, facilitating small-amplitude, repeatable protrusion positioning and follow-up fine adjustments.

[0043] Example 4 This embodiment provides a method for determining the occlusal relationship of a bite measurement elevation assistive tool, used to determine the protrusion position of an anti-snoring device / mandibular advancement device (MAD), and to determine a safe and effective initial protrusion position for the anti-snoring device (MAD), including the following steps: Step 1: Select accessories: Select the appropriate Y-shaped main body 1, occlusal part 2 with a thickness of 3.0mm, mandibular guide slider 3, and maxillary guide slider 4 according to the patient's dental arch width and actual condition; Step 2, Intraoral Adjustment: First, place the occlusal portion 2 in the posterior tooth area, and simultaneously adjust the upper tooth recess 8 of the maxillary guide slider 4 to correspond with the incisal edge of the upper anterior teeth and lock the second locking screw 11; then, align the lower tooth recess 7 of the mandibular guide slider 3 with the incisal edge of the lower anterior teeth, record the corresponding scale of the first locking screw 10 as "0", and instruct the patient to actively extend the mandible to the maximum reachable position, record the scale as "a"; then push the mandibular guide slider 3 to 50%-75% of a (preferably 60%), and lock the first locking screw 10; finally, guide the patient to extend the mandible and position the incisal edge of the lower anterior teeth in the lower tooth recess 7, completing the positioning; Step 3, establish occlusal relationship: perform posterior tooth scanning or PVS recording.

[0044] Example values: The patient's maximum forward extension a = 8 mm, and 60% → 4.8 mm is taken as the initial forward extension position for device fabrication.

[0045] Effect: Using the quantitative division of "maximum forward extension a" as an individualized benchmark, it takes into account both therapeutic efficacy and comfort, and facilitates the subsequent phased and progressive adjustment of the device.

[0046] Example 5 This embodiment provides a method for obtaining the occlusal relationship of an occlusal quantitative elevation assistive tool. The difference from Embodiments 2 or 4 is that it employs a "whole transfer" method using the mesh-like occlusal portion 2 to stably transfer the intraoral protrusion / edge-to-edge / midpoint position to a plaster model in one step. (See [link to previous embodiment]). Figure 8 As shown; Select accessories: Select a Y-shaped main body 1 that is suitable for the patient's dental arch width and actual condition, a mesh occlusal part 2 with a hole diameter of 1.5-3 mm and a thickness of 2.0 mm, a mandibular guide slider 3, and a maxillary guide slider 4. Next, first complete the intraoral locking in step 2 according to the target position; then remove the occlusal elevation assistive tool outside the mouth, and press PVS or hard base wax through the mesh on both sides of the occlusal part 2 to form a "mesh-through" fixation; then reset the occlusal elevation assistive tool back into the mouth, instruct the patient to gently close it to the positioning position, and after the material is completely cured, remove the occlusal elevation assistive tool and the cured occlusal recording material as a whole, and place them directly in the corresponding positions of the pre-made upper and lower jaw plaster models to achieve integrated transfer of "tool-record-model"; if necessary, make minor trimming of the edges.

[0047] Effect: The mesh provides mechanical engagement, and the record and tool are rigidly combined to prevent secondary positioning errors, making it suitable for repair / correction procedures with high precision requirements.

[0048] Example 6 This embodiment provides a method for obtaining the occlusal relationship of a quantitative occlusal elevation assistive tool, employing the "recording and disassembly + digital scanning" method for the strip occlusal portion (see [link]). Figure 1 (2) Obtain the digital meshing relationship that can be directly used in the CAD / CAM process. The specific steps are as follows: Step 1: Select a Y-shaped main body 1, a strip-shaped occlusal part 2 (8-12mm wide, 2.0-3.0mm thick), and a mandibular guide slider 3, or a mandibular guide slider 3 and a maxillary guide slider 4, according to the patient's dental arch width and actual condition. Step 2: First, lock the occlusal quantitative elevation auxiliary tool in the mouth according to the target position; apply PVS occlusal recording material to the upper and lower surfaces of the occlusal parts 2 on both sides, and after curing, remove the recording material from both sides in a "wrap-like" manner. After appropriately modifying the occlusal record, put it back into the mouth to reposition the posterior tooth area, and use an intraoral optical scanner to scan only the posterior tooth area and the recording surface to generate a digital occlusal file; or place the record directly on the plaster model for desktop extraoral optical scanning.

[0049] Effects: The occlusal portion 2 with its strip structure facilitates "complete disassembly," reducing intraoral dwell time. Combined with a posterior-only scanning strategy, it improves registration efficiency and stability.

[0050] Example 7: This embodiment provides a method for determining the occlusal relationship of a quantitative occlusal elevation assistive tool. It utilizes occlusal portions 2 of varying thicknesses for phased elevation and follow-up adjustments. Primarily targeting patients with joint / muscle sensitivity, it employs progressive elevation and follow-up adjustments. The specific steps are as follows: Step 1: Select a Y-shaped main body 1 that matches the patient's dental arch width and actual condition, and a replaceable occlusal part 2 (1.5 mm → 2.0 mm → 2.5 mm progressively). Accessories are selected according to the treatment purpose. Step 2: Initially, a 1.5 mm thick occlusal 2 is used to obtain the target position; after 1-2 weeks, if the myalgia and joint symptoms improve, the thickness is changed to 2.0 mm and retested for confirmation; if further vertical distance is required, it is changed to 2.5 mm and retested; at each stage, the scanning or recording path is transferred to the technician's end according to Examples 1, 3, and 4.

[0051] Results: Standardized replacement parts enable traceable, phased elevation, while the recording and positioning methods remain unchanged, ensuring comparability and accuracy between different phases.

[0052] Example 8: This embodiment provides a method for obtaining the occlusal relationship of a quantitative occlusal elevation aid, wherein the occlusal part 2 of a flexible material is in close contact with the occlusion of the dental arch (see...). Figure 10 As shown in the image, for cases of significant posterior malocclusion with a steep occlusal curve, a flexible material is used to closely fit the occlusal surfaces of the dentition. The specific steps are as follows: Step 1: Select a Y-shaped main body 1, a flexible material strip occlusal part 2 (medical PA12 material), and a mandibular guide slider 3, or a mandibular guide slider 3 and a maxillary guide slider 4, according to the patient's dental arch width and actual condition. Step 2: First, lock the target position in the mouth, then apply PVS occlusal recording material to the upper and lower surfaces of the occlusal portion 2 on both sides. After curing, use scissors or a cutting tool to directly cut it off from the outside of the horizontal strip structure of the occlusal portion 2. After appropriately trimming the occlusal record, reposition it in the mouth to reposition the posterior tooth area. Use an intraoral optical scanner to scan only the posterior tooth area and the recording surface to generate a digital occlusal record; or place the record directly on the plaster model for desktop extraoral optical scanning.

[0053] Effect: The strip structure and PVS occlusal recording material are completely separated from the occlusal part 2, reducing the restriction of the occlusal recording by the outer structure of the occlusal part and ensuring the stability of the occlusal recording.

[0054] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model.

[0055] It should be understood that this utility model is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. A bite-elevation assistive tool, characterized in that, The device includes a Y-shaped body (1) whose upper part matches the width of the dental arch. The upper part of the Y-shaped body (1) is detachably connected to a set of occlusal parts (2) to facilitate posterior tooth occlusion. The lower part of the Y-shaped body is provided with a first groove (6) to facilitate the sliding of the mandibular guide slider (3) and / or the maxillary guide slider (4) or the mandibular guide slider (5). The mandibular guide slider (3) and / or the maxillary guide slider (4) or the mandibular guide slider (5) are provided with locking screws that enable them to be fixed with the first groove (6).

2. The bite-elevation auxiliary tool according to claim 1, characterized in that, The mandibular guide slider (3) is provided with a lower tooth recess (7) adapted to the lower teeth, the maxillary guide slider (4) is provided with an upper tooth recess (8) adapted to the upper teeth, and the maxillary and mandibular guide sliders (5) are provided with an upper tooth recess (8) and a lower tooth recess (7) adapted to the upper and lower teeth.

3. The bite-elevation auxiliary tool according to claim 1, characterized in that, The mandibular guide slider (3) is provided with a second groove (9) to facilitate the sliding of the maxillary guide slider (4).

4. The bite-elevation auxiliary tool according to claim 3, characterized in that, The locking screws include a first locking screw (10) and a second locking screw (11). The mandibular guide slider (3) is slidable or fixed in the first groove (6) by the first locking screw (10). The maxillary guide slider (4) is slidable or fixed in the first groove (6) and the second groove (9) by the second locking screw (11).

5. The bite-quantitative elevation auxiliary tool according to claim 1, characterized in that, The biting part (2) has a comb-like or mesh-like structure and is detachably connected to the upper part of the Y-shaped body (1).

6. The bite-elevation auxiliary tool according to claim 1, characterized in that, The surface roughness Ra of the interlocking part (2) is ≤0.8μm.

7. The bite-elevation auxiliary tool according to claim 1, characterized in that, The interlocking part (2) is formed by injection molding, CNC or 3D printing.

8. The bite-elevation auxiliary tool according to claim 1, characterized in that, The thickness of the occlusal portion (2) ranges from 1.0 to 4.0 mm, and the step distance is 0.5 mm.

9. The bite-elevation auxiliary tool according to claim 1, characterized in that, The lower part of the Y-shaped body (1) and one side of the first groove (6) are provided with scale lines.

10. The bite-elevation auxiliary tool according to claim 1, characterized in that, The Y-shaped main body (1), mandibular guide slider (3), maxillary guide slider (4), and mandibular guide slider (5) are made of medical-grade stainless steel, titanium alloy, or high-performance polymer.

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