A complete denture occlusal assistive examination and adjustment device

Abstract

This invention provides a complete denture occlusal adjustment and examination device. The device includes two positioning plates, each detachably equipped with a fine-tuning mechanism. A connecting plate is fixedly mounted on the side of each fine-tuning mechanism away from the positioning plates, and both connecting plates have the same adjustment mechanism. The positioning plates are used to connect to either a maxillary or mandibular complete denture. The fine-tuning mechanism is used to adjust the relationship between the connecting plate and the positioning plate, and to fix the adjusted portion. The adjustment mechanism is used to adjust the relative position between the two connecting plates laterally and vertically. The complete denture occlusal adjustment and examination device provided by this invention has the advantages of enabling precise and rapid adjustment of the occlusal relationship between the maxilla and mandible, reducing reliance on the dentist's experience, and being compatible with digital restoration procedures.

Description

Technical Field

[0001] This invention relates to the field of oral restoration technology, and in particular to a complete denture occlusal auxiliary examination and adjustment device. Background Technology

[0002] Complete dentures are the primary restorative method for treating missing teeth, but traditional restorative techniques have many limitations. The procedure for traditional complete dentures is very complex, requiring extensive clinical experience from the dentist, multiple patient visits (usually 7-8), and continuous chairside assistance from the technician. The transfer and recording of jaw position, the design of the denture, and the alignment of the artificial teeth all heavily rely on the experience of both the dentist and the technician.

[0003] In the development of digital prosthetic technology, although digitally attached dentures improve retention through precise design of marginal closure structures, accurately determining the occlusal relationship remains a challenge. Currently, clinical practice commonly employs techniques such as facial scanning and CBCT to determine information such as the occlusal plane and hinge axis, while simultaneously combining intraoral scanning of buccal occlusal data to determine the relationship between the maxilla and mandible. However, these digital methods still have accuracy issues during implementation. For example, in virtual facebow technology, the accuracy of the facial scanning method significantly affects the conversion accuracy from maxillary digital scans to three-dimensional facial scans.

[0004] Especially for elderly edentulous patients, establishing occlusion is more difficult due to factors such as severe alveolar ridge resorption and poor mucosal conditions. Traditional impression taking using alginate impression materials can easily cause nausea or discomfort, while digital impression technology avoids these discomforts, but there is still a lack of effective physical aids for real-time adjustment and verification in the occlusal relationship recording process.

[0005] In the existing technology, although the Gothic arch tracing method is regarded as the gold standard for recording occlusal relationships, it is complicated to operate and cannot be quickly fine-tuned at the chairside; although the mandibular motion tracking system can record the movement trajectory, the equipment is expensive and requires high operator skills.

[0006] Therefore, it is necessary to provide a new complete denture occlusal adjustment and examination device to solve the above-mentioned technical problems. Summary of the Invention

[0007] The technical problem solved by this invention is to provide a complete denture occlusal auxiliary examination and adjustment device that can achieve precise and rapid adjustment of the occlusal relationship of the upper and lower dentures, reduce the dependence on the doctor's experience, and is compatible with digital restoration processes.

[0008] To solve the above-mentioned technical problems, the complete denture occlusion auxiliary examination and adjustment device provided by the present invention includes: two positioning plates, each of which is detachably equipped with a fine adjustment mechanism, and a connecting plate is fixedly installed on the side of the fine adjustment mechanism away from the positioning plate, and the two connecting plates are provided with the same adjustment mechanism; The positioning plate is used to connect to the maxillary or mandibular complete denture. The fine-tuning mechanism is used to adjust the connection plate and the positioning plate and to fix them after adjustment. The adjustment mechanism is used to adjust the relative position between the two connecting plates in both the horizontal and vertical directions.

[0009] Preferably, the positioning plate includes a plate body and a positioning pin fixedly installed on one side of the plate body, the positioning pin being located on the side of the plate body closer to the adjustment mechanism.

[0010] Preferably, the fine-tuning mechanism includes a ball sleeve, a ball block is fitted inside the ball sleeve, a positioning groove is formed on the ball block, a positioning pin is located in the positioning groove, a braking block is provided inside the ball sleeve, the braking block is slidably installed inside the ball sleeve, a braking bolt is provided on the connecting plate, and one end of the braking bolt is rotatably installed on the braking block.

[0011] Preferably, the brake bolt is threaded onto the ball sleeve and / or connecting plate.

[0012] Preferably, the ball block is provided with a brake screw, and the brake screw is in contact with the positioning pin.

[0013] Preferably, the adjusting mechanism includes a first adjusting bolt rotatably mounted on one of the connecting plates, a connecting block being threaded onto the outer side of the first adjusting bolt, the connecting block being slidably mounted on the other connecting plate, an internally threaded sleeve being fixedly mounted on the other connecting plate, a second adjusting bolt being threaded onto the internally threaded sleeve, and the second adjusting bolt being rotatably mounted on the connecting block.

[0014] Preferably, a first rotating seat is rotatably mounted on one end of the first adjusting bolt, and a second rotating seat is rotatably mounted on one end of the second adjusting bolt. The first rotating seat and the second rotating seat are respectively rotatably mounted on one of the connecting plates and the connecting block.

[0015] Preferably, another connecting plate has a sliding hole, and the connecting block is slidably installed in the sliding hole.

[0016] Preferably, a limiting groove is provided on both sides of the connecting block, and a limiting block is fixedly installed on the inner wall of both sides of the sliding hole, and the limiting block is slidably installed in the limiting groove.

[0017] Compared with related technologies, the complete denture occlusal adjustment and examination device provided by this invention has the following advantages: This invention provides a complete denture occlusion auxiliary examination and adjustment device. Through the synergistic action of the fine-tuning mechanism and the adjustment mechanism, it can accurately control the vertical distance, horizontal jaw position relationship and balanced occlusion of the denture, avoiding occlusion deviation caused by human error in traditional methods. For example, vertical distances can be obtained through a combination of facial observation, resting jaw position method, or electromyography; horizontal jaw position relationships can be transferred using electronic facebow data. This device provides physical fine-tuning means to ensure uniform occlusal contact points. The device can be quickly installed and adjusted at the chairside, reducing the number of patient follow-up visits. Traditional restorations require 5-8 visits, while digital restorations can be shortened to 3 visits. This device further optimizes the process and improves medical efficiency. The adjuster can be used in conjunction with digital jaw position recording data. For example, after obtaining the initial jaw position relationship through virtual facebow technology, this device can be used for physical verification and fine-tuning. It meets the requirements for improving the accuracy of restorations in the expert consensus on simplified digital complete denture restoration techniques. The adjuster is suitable for edentulous patients with severe alveolar ridge resorption, those with poor retention of traditional dentures, or those with mucosal intolerance, thereby improving patient comfort and effectively improving chewing efficiency and patient satisfaction. Attached Figure Description

[0018] Figure 1 A three-dimensional structural schematic diagram of a preferred embodiment of the complete denture occlusion auxiliary examination and adjustment device provided by the present invention; Figure 2 for Figure 1 A structural schematic diagram from another perspective is shown; Figure 3 for Figure 1 The diagram shows the front view of the structure. Figure 4 for Figure 3 The diagram shows the exploded structure. Figure 5 for Figure 4 The diagram shows a three-dimensional structure. Figure 6 for Figure 5 A structural schematic diagram from another perspective is shown; Figure 7 for Figure 1 The diagram shows a cross-sectional view of the structure. Figure 8 for Figure 1 The diagram shows the connection structure between the two connecting plates and the adjustment mechanism. Figure 9 for Figure 8 The diagram shows the structure of the connecting block.

[0019] The following are the labels in the diagram: 1. Positioning plate; 11. Plate body; 12. Positioning pin; 2. Fine-tuning mechanism; 21. Ball sleeve; 22. Ball block; 23. Positioning groove; 24. Braking block; 25. Braking bolt; 26. Braking screw; 3. Connecting plate; 4. Adjusting mechanism; 401. First adjusting bolt; 402. Connecting block; 403. First rotating seat; 404. Internal threaded sleeve; 405. Second adjusting bolt; 406. Sliding hole; 407. Limiting groove; 408. Limiting block; 409. Second rotating seat. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figure 1-9 ,in, Figure 1 A three-dimensional structural schematic diagram of a preferred embodiment of the complete denture occlusion auxiliary examination and adjustment device provided by the present invention; Figure 2 for Figure 1 A structural schematic diagram from another perspective is shown; Figure 3 for Figure 1 The diagram shows the front view of the structure. Figure 4 for Figure 3 The diagram shows the exploded structure. Figure 5 for Figure 4 The diagram shows a three-dimensional structure. Figure 6 for Figure 5 A structural schematic diagram from another perspective is shown; Figure 7 for Figure 1 The diagram shows a cross-sectional view of the structure. Figure 8 for Figure 1 The diagram shows the connection structure between the two connecting plates and the adjustment mechanism. Figure 9 for Figure 8 The diagram shows the structure of the connecting block. The complete denture occlusion auxiliary examination and adjustment device includes: two positioning plates 1, each of which is detachably equipped with a fine-adjustment mechanism 2. Each fine-adjustment mechanism 2 is fixedly mounted on a side away from the positioning plate 1, and the two connecting plates 3 are provided with the same adjustment mechanism 4. The positioning plate 1 is used to connect to the maxillary complete denture or the mandibular complete denture. The fine-tuning mechanism 2 is used to adjust the connection plate 3 and the positioning plate 1 and to fix them after adjustment. The adjustment mechanism 4 is used to adjust the relative position between the two connecting plates 3 in both the horizontal and vertical directions.

[0022] The positioning plate 1 includes a plate body 11 and a positioning pin 12 fixedly installed on one side of the plate body 11. The positioning pin 12 is located on the side of the plate body 11 close to the adjustment mechanism 2.

[0023] The plate 11 is a rectangular metal plate, sized to fit the polished surface of the denture. A connecting pin can be installed on the side of the plate 11 away from the positioning pin 12. The plate 11 can be fixed by embedding the connecting pin into the pre-drilled hole in the denture base. The diameter of the connecting pin matches the pre-drilled hole in the denture base to ensure a stable connection. The connecting pin is made of medical-grade stainless steel to avoid allergic reactions and meets the biosafety requirements of dental restorative materials. In clinical applications, when installing the positioning plate 1, it is necessary to ensure that it does not interfere with the sealing area of ​​the denture margin to avoid affecting the adhesion. The fine-tuning mechanism 2 includes a ball sleeve 21, a ball block 22 is fitted inside the ball sleeve 21, a positioning groove 23 is provided on the ball block 22, the positioning pin 12 is located in the positioning groove 23, a brake block 24 is provided inside the ball sleeve 21, the brake block 24 is slidably installed inside the ball sleeve 21, and a brake bolt 25 is provided on the connecting plate 3, one end of the brake bolt 25 is rotatably installed on the brake block 24.

[0024] The ball block 22 is nested inside the ball sleeve 21 to achieve universal adjustment, with an angle adjustment range of ±15° to adapt to changes in jaw position in different patients.

[0025] The brake bolt 25 is threaded onto the ball sleeve 21 and / or the connecting plate 3.

[0026] The ball block 22 is provided with a brake screw 26, which is in contact with the positioning pin 12.

[0027] The adjusting mechanism 4 includes a first adjusting bolt 401 rotatably mounted on one of the connecting plates 3, a connecting block 402 threaded on the outer side of the first adjusting bolt 401, the connecting block 402 slidably mounted on the other connecting plate 3, an internal threaded sleeve 404 fixedly mounted on the other connecting plate 3, a second adjusting bolt 405 threaded on the internal threaded sleeve 404, and the second adjusting bolt 405 rotatably mounted on the connecting block 402.

[0028] One end of the first adjusting bolt 401 is rotatably mounted with a first rotating seat 403, and one end of the second adjusting bolt 405 is rotatably mounted with a second rotating seat 409. The first rotating seat 403 and the second rotating seat 409 are respectively rotatably mounted on one of the connecting plates 3 and the connecting block 402.

[0029] Another connecting plate 3 has a sliding hole 406, and the connecting block 402 is slidably installed in the sliding hole 406.

[0030] Limiting grooves 407 are provided on both sides of the connecting block 402, and limiting blocks 408 are fixedly installed on the inner walls of both sides of the sliding hole 406. The limiting blocks 408 are slidably installed in the limiting grooves 407.

[0031] Rotating the first adjusting bolt 401 allows for lateral displacement (range ±10mm), while rotating the second adjusting bolt 405 controls vertical displacement (range ±5mm), achieving an accuracy of 0.1mm and ensuring uniform contact point distribution to meet the requirements of the occlusal paper test. The design of the adjusting mechanism 4 considers the neutral zone principle, making the adjusted artificial dentition more consistent with the physiological basis of edentulous jaws.

[0032] The working principle of the complete denture occlusion assistive examination and adjustment device provided by this invention is as follows: When in use, fix the two positioning plates 1 to the denture bases of the upper and lower jaws respectively, ensuring that the connecting pins are fully embedded. The pre-drilled holes in the denture bases need to be planned during the digital design stage and are usually located in the neutral zone of the denture to avoid affecting aesthetics and function. Loosen the braking bolt 25 and adjust the angle of the connecting plate 3 through the fine-tuning mechanism 2 to make the upper and lower jaws roughly aligned. At this time, refer to the digital jaw position recording data, such as the jaw plane parameters obtained by the virtual facebow. Use adjustment mechanism 4 to make horizontal and vertical fine adjustments until the bite paper test shows uniform contact. During the adjustment process, patient feedback should be taken into account to ensure there are no tender points or temporomandibular joint discomfort. Tighten all braking components, including brake bolt 25 and brake screw 26, to complete the engagement and fixation; after locking, check the engagement again, and verify with a pressure indicator if necessary; Finally, the occlusal accuracy is verified through digital means (such as facial scanning or mandibular movement trajectory recording) to ensure that it meets the requirements of bilateral balanced occlusion.

[0033] Compared with related technologies, the complete denture occlusal adjustment and examination device provided by this invention has the following advantages: This invention provides a complete denture occlusion auxiliary examination and adjustment device. Through the synergistic action of the fine-tuning mechanism 2 and the adjustment mechanism 4, the vertical distance, horizontal jaw position relationship and balanced occlusion of the denture can be precisely controlled, avoiding occlusion deviation caused by human error in traditional methods. For example, vertical distances can be obtained through a combination of facial observation, resting jaw position method, or electromyography; horizontal jaw position relationships can be transferred using electronic facebow data. This device provides physical fine-tuning means to ensure uniform occlusal contact points. The device can be quickly installed and adjusted at the chairside, reducing the number of patient follow-up visits. Traditional restorations require 5-8 visits, while digital restorations can be shortened to 3 visits. This device further optimizes the process and improves medical efficiency. The adjuster can be used in conjunction with digital jaw position recording data. For example, after obtaining the initial jaw position relationship through virtual facebow technology, this device can be used for physical verification and fine-tuning. It meets the requirements for improving the accuracy of restorations in the expert consensus on simplified digital complete denture restoration techniques. The adjuster is suitable for edentulous patients with severe alveolar ridge resorption, those with poor retention of traditional dentures, or those with mucosal intolerance, thereby improving patient comfort and effectively improving chewing efficiency and patient satisfaction.

[0034] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A complete denture occlusal adjustment and examination device, characterized in that, include: Two positioning plates are provided, and a fine-tuning mechanism can be detachably installed on each of the two positioning plates. A connecting plate is fixedly installed on the side of the fine-tuning mechanism away from the positioning plate, and the same adjustment mechanism is provided on the two connecting plates. The positioning plate is used to connect to the maxillary or mandibular complete denture. The fine-tuning mechanism is used to adjust the connection plate and the positioning plate and to fix them after adjustment. The adjustment mechanism is used to adjust the relative position between the two connecting plates in both the horizontal and vertical directions.

2. The complete denture occlusal adjustment and examination device according to claim 1, characterized in that, The positioning plate includes a plate body and a positioning pin fixedly installed on one side of the plate body, the positioning pin being located on the side of the plate body closer to the adjustment mechanism.

3. The complete denture occlusal adjustment and examination device according to claim 2, characterized in that, The fine-tuning mechanism includes a ball sleeve, inside which a ball block is fitted. A positioning groove is formed on the ball block, and a positioning pin is located in the positioning groove. A braking block is provided inside the ball sleeve and is slidably installed inside the ball sleeve. A braking bolt is provided on the connecting plate, and one end of the braking bolt is rotatably installed on the braking block.

4. The complete denture occlusal adjustment and examination device according to claim 3, characterized in that, The brake bolt is threaded onto the ball sleeve and / or connecting plate.

5. The complete denture occlusion assistive examination and adjustment device according to claim 3, characterized in that, The ball block is provided with a brake screw, which is in contact with the positioning pin.

6. The complete denture occlusal adjustment and examination device according to claim 1, characterized in that, The adjusting mechanism includes a first adjusting bolt rotatably mounted on one of the connecting plates, a connecting block being threaded onto the outer side of the first adjusting bolt, the connecting block being slidably mounted on the other connecting plate, an internally threaded sleeve being fixedly mounted on the other connecting plate, a second adjusting bolt being threaded onto the internally threaded sleeve, and the second adjusting bolt being rotatably mounted on the connecting block.

7. The complete denture occlusion assistive examination and adjustment device according to claim 6, characterized in that, One end of the first adjusting bolt is rotatably mounted with a first rotating seat, and one end of the second adjusting bolt is rotatably mounted with a second rotating seat. The first rotating seat and the second rotating seat are respectively rotatably mounted on one of the connecting plates and the connecting block.

8. The complete denture occlusal adjustment and examination device according to claim 6, characterized in that, Another connecting plate has a sliding hole, and the connecting block is slidably installed in the sliding hole.

9. The complete denture occlusal adjustment and examination device according to claim 6, characterized in that, Limiting grooves are provided on both sides of the connecting block, and limiting blocks are fixedly installed on the inner walls of both sides of the sliding hole. The limiting blocks are slidably installed in the limiting grooves.

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