Adjustable adsorptive denture
By introducing a micro-screw and oblique groove structure into the denture to adjust the height of the molars, combined with a sealing ring design, the problem of the inability to adjust molars in traditional dentures is solved, achieving efficient utilization of molars and a long service life for the denture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU CHAOWEI DENTURE PREPARATION CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional dentures cannot adjust the height of molars, leading to frequent replacements when molars wear down significantly, increasing usage costs.
Design an adjustable suction denture that allows for height adjustment of molars via a micro-screw and oblique groove structure, and improves sealing performance with a sealing ring to prevent food residue from entering and extend its service life.
It effectively reduces the frequency of molar replacement, lowers usage costs, and extends the lifespan and cleanliness of dentures.
Smart Images

Figure CN224370015U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical equipment technology, specifically to an adjustable suction denture. Background Technology
[0002] Dentures, also known as artificial teeth, are medical devices used to replace missing teeth and surrounding tissues, aiming to restore chewing, speech functions, and facial aesthetics. Their development has spanned centuries, evolving from early materials like wood and ivory to modern materials such as polymer resins, ceramics, and metal alloys. Traditional removable dentures are fixed to adjacent teeth with clasps and can be easily removed and worn, but their stability and comfort are limited. Fixed dentures, such as porcelain crowns and bridges, require grinding down healthy adjacent teeth for support, potentially leading to secondary caries and other problems. With advancements in oral medicine, dental implants have become the mainstream approach. These implants achieve non-invasive restoration by inserting artificial tooth roots, combining functionality and biocompatibility, significantly improving patients' quality of life and becoming a crucial technological choice for modern tooth loss restoration.
[0003] The structural design of dentures determines the user experience. For example, a comfortable suction denture (patent publication number CN216221778U) includes a suction denture body. A premolar is fixedly installed on the left side of the upper surface of the suction denture body, and a molar is movably installed on the upper surface of the suction denture body. This application utilizes the cooperation between the suction denture body, connecting device, sealing plug, and molar. By compressing a spring in the connecting device, the connecting block is separated from the suction denture body, achieving the disassembly of the molar. Simultaneously, the spring's rebound achieves the installation of the molar, effectively solving the problem of molar damage from prolonged use. The connecting device connects and fixes the molar to the suction denture body, allowing for individual molar replacement, avoiding the need to replace the entire suction denture body when replacing the molar, reducing replacement costs, and extending the lifespan of the suction denture body.
[0004] However, the height of the molars in the above-mentioned dentures cannot be adjusted during use. For molars that are worn to a certain extent but are still usable, they cannot be adjusted to a height suitable for the user and must be replaced. The frequency of replacing molars is relatively high, resulting in high usage costs. Utility Model Content
[0005] The purpose of this invention is to provide an adjustable suction denture to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An adjustable suction denture includes a suction base with a gingival groove at the bottom and a mounting groove at the top. A molar is placed in the mounting groove, and several grooves are formed at the bottom of the molar. Several micro screws are rotatably mounted in the mounting groove, with each micro screw positioned in a corresponding groove. A movable sleeve is threaded onto the micro screw, and a movable plate is fixed to the movable sleeve. Two crossbars of different heights are provided on both sides of the upper end of the movable plate. A slot is formed above the groove, and the movable plate is located in the slot. Slanted openings are formed on both sides of the slot, and the two ends of the crossbars are slidably positioned in the slanted openings.
[0008] With the above structure, the position of the moving sleeve can be adjusted by rotating the micro screw. When the moving sleeve moves, the two crossbars of different heights will move along the inclined groove and drive the grinding teeth to adjust up and down. The more severe the wear of the grinding teeth, the higher they can be adjusted until the grinding teeth can no longer be used and then replaced. This allows for more efficient use of the grinding teeth, reduces the frequency of replacement, and lowers the cost of use.
[0009] Preferably, the inner side of the adsorption base is provided with a rotating hole, the end of the micro screw is fixed with a rotating block, and the rotating block is rotatably disposed in the rotating hole. A first sealing ring is provided on the outer side of the rotating block, and the outer side of the first sealing ring abuts against the inner wall of the rotating hole. An adjustment groove is provided on the rotating block.
[0010] With the above structure, the rotating block can be rotated through the adjustment groove, thereby adjusting the micro screw, making adjustment more convenient. Moreover, the first sealing ring can improve the sealing between the rotating hole and the rotating block, preventing food residue from entering the gap and improving the cleanliness of the denture.
[0011] Preferably, a second sealing ring is provided on the inner side of the groove of the mounting groove, and the inner side of the second sealing ring abuts against the molar.
[0012] With the above structure, the second sealing ring can improve the sealing performance between the molar and the mounting slot, prevent food residue from entering the mounting slot and becoming difficult to clean, and prevent corrosion of structures such as the micro-screw, thus extending the service life of the denture.
[0013] Preferably, the outer side of the second sealing ring is provided with a plurality of equally spaced protrusions, and the inner side of the mounting groove is provided with a plurality of equally spaced slots, and the protrusions are engaged in the slots at corresponding positions.
[0014] With the above structure, the molars may wobble slightly when chewing food due to wear of the denture. Without affecting the use, the molars do not need to be replaced. The fit between the slot and the protrusion ensures that the second sealing ring will not shift or fall off when the molars wobble, thus improving the user experience.
[0015] Preferably, two notches are provided below the inclined slot, and the width of the notches is greater than the diameter of the crossbar.
[0016] With the above structure, when the molar is severely worn and needs to be replaced, the molar can be adjusted to its highest position. At this point, the two crossbars are exactly aligned with the two notches, allowing the worn molar to be removed upwards. After replacing it with a new molar, the height can be lowered. The replacement operation is simple and convenient to use.
[0017] Preferably, the molars have a split structure and consist of two symmetrically distributed molars following the premolars.
[0018] With the above structure, the molars in different parts are used at different frequencies and with different forces. When a local molar wears down, it is not necessary to replace the entire molar. Moreover, the height of different parts can be adjusted to improve the adjustment effect.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] By adjusting the micro screw through the rotating block, and then moving the crossbar through the micro screw, the height of the grinding teeth can be adjusted with the cooperation of the inclined slot. The more severe the wear of the grinding teeth, the higher they can be adjusted until they are no longer usable before replacing them. This allows for more efficient use of the grinding teeth, reduces the frequency of replacement, and lowers operating costs.
[0021] Meanwhile, the second sealing ring can improve the sealing performance between the molar and the mounting slot, and the first sealing ring can improve the sealing performance between the rotating hole and the rotating block, preventing food residue from entering the mounting slot, which is difficult to clean and corrodes structures such as the micro screw, thus extending the service life of the denture. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall axonometric structure of this utility model;
[0023] Figure 2 This is a partial disassembly diagram of the present invention;
[0024] Figure 3 This is a cross-sectional view of the molar structure in this utility model;
[0025] Figure 4 This is a schematic diagram of the micro screw in this utility model.
[0026] In the diagram: 1. Adsorption base; 2. Gingival clasp; 3. Mounting slot; 4. Molar; 5. Miniature screw; 6. Moving sleeve; 7. Moving plate; 8. Crossbar; 9. Groove; 10. Slot; 11. Angled groove; 12. Rotating hole; 13. Rotating block; 14. First sealing ring; 15. Second sealing ring; 16. Protrusion; 17. Crate; 18. Notch. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] like Figures 1-4 As shown, this utility model provides a technical solution: an adjustable suction denture, including a suction base 1, a gingival groove 2 at the bottom of the suction base 1, and an installation groove 3 at the upper end of the suction base 1. A molar 4 is provided in the installation groove 3, and several grooves 9 are provided at the bottom of the molar 4. Several micro screws 5 are rotatably provided in the installation groove 3, and the micro screws 5 are located in the grooves 9 at corresponding positions. A movable sleeve 6 is threadedly connected to the micro screws 5, and a movable plate 7 is fixed on the movable sleeve 6. Two crossbars 8 of different heights are provided on both sides of the upper end of the movable plate 7. A slot 10 is provided above the grooves 9, and the movable plate 7 is located in the slot 10. An inclined slot 11 is provided on both sides of the slot 10, and the two ends of the crossbars 8 are slidably disposed in the inclined slot 11.
[0029] It should be noted that the position of the moving sleeve 6 can be adjusted by rotating the micro screw 5. When the moving sleeve 6 moves, the two crossbars 8 of different heights will move along the inclined groove 11 and drive the grinding teeth 4 to adjust up and down. The more severe the wear of the grinding teeth 4, the higher it can be adjusted until the grinding teeth 4 can no longer be used before replacing it. This can make fuller use of the grinding teeth 4, reduce the replacement frequency, and reduce the cost of use.
[0030] refer to Figure 4 As shown, the inner side of the adsorption base 1 has a rotating hole 12, the end of the micro screw 5 is fixed with a rotating block 13, and the rotating block 13 is rotatably disposed in the rotating hole 12. The outer side of the rotating block 13 is provided with a first sealing ring 14, and the outer side of the first sealing ring 14 abuts against the inner wall of the rotating hole 12. An adjustment groove is provided on the rotating block 13.
[0031] It should be noted that the rotating block 13 can be rotated through the adjustment groove, thereby adjusting the micro screw 5, making adjustment more convenient. Moreover, the first sealing ring 14 can improve the sealing between the rotating hole 12 and the rotating block 13, preventing food residue from entering the gap and improving the cleanliness of the denture.
[0032] refer to Figure 2 As shown, a second sealing ring 15 is provided on the inner side of the groove of the mounting groove 3, and the inner side of the second sealing ring 15 abuts against the molar 4.
[0033] It should be noted that the second sealing ring 15 can improve the sealing of the gap between the molar 4 and the mounting groove 3, prevent food residue from entering the mounting groove 3 and becoming difficult to clean and corroding structures such as the micro screw 5, and extend the service life of the denture.
[0034] refer to Figure 2 As shown, the outer side of the second sealing ring 15 is provided with a number of equally spaced protrusions 16, and the inner side of the mounting groove 3 is provided with a number of equally spaced slots 17, and the protrusions 16 are engaged in the slots 17 at the corresponding positions.
[0035] It should be noted that when chewing food, the molar 4 may wobble slightly due to wear of the denture. If it does not affect the use, the molar 4 does not need to be replaced. The fit between the slot 17 and the protrusion 16 ensures that the second sealing ring 15 will not shift or fall off when the molar 4 wobble, thus improving the user experience.
[0036] refer to Figure 3 As shown, two notches 18 are provided below the inclined slot 11, and the width of the notches 18 is greater than the diameter of the crossbar 8.
[0037] It should be noted that when the molar 4 is severely worn and needs to be replaced, the molar 4 can be adjusted to its highest position. At this time, the two horizontal bars 8 are exactly aligned with the two notches 18, and the worn molar 4 can be taken out upwards. After replacing it with a new molar 4, its height can be lowered. The replacement operation is simple and convenient to use.
[0038] refer to Figure 1 As shown, molar 4 has a split structure and is composed of two symmetrically distributed molars behind the premolar.
[0039] It should be noted that the frequency and force of use of the molars 4 vary in different parts. When the molars 4 in a certain part wears out, it is not necessary to replace the entire molars 4. Moreover, the height of different parts can be adjusted to improve the adjustment effect.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.
Claims
1. An adjustable adsorptive denture comprising an adsorptive base (1), characterized in that: The bottom of the suction base (1) is provided with a gingival cradle (2), and the upper end of the suction base (1) is provided with an installation groove (3). A molar (4) is provided in the installation groove (3). Several grooves (9) are provided at the bottom of the molar (4). Several micro screws (5) are rotatably provided in the installation groove (3). The micro screws (5) are located in the grooves (9) at the corresponding positions. A movable sleeve (6) is threaded onto the micro screws (5). A movable plate (7) is fixed on the movable sleeve (6). Two crossbars (8) of different heights are provided on both sides of the upper end of the movable plate (7). A slot (10) is provided above the groove (9), and the movable plate (7) is located in the slot (10). An oblique groove (11) is provided on both sides of the slot (10), and the two ends of the crossbar (8) are slidably provided in the oblique groove (11).
2. The adjustable adsorption denture according to claim 1, wherein: The adsorption base (1) has a rotating hole (12) on its inner side. The end of the micro screw (5) is fixed with a rotating block (13), and the rotating block (13) is rotatably arranged in the rotating hole (12). A first sealing ring (14) is provided on the outer side of the rotating block (13), and the outer side of the first sealing ring (14) abuts against the inner wall of the rotating hole (12). An adjustment groove is provided on the rotating block (13).
3. The adjustable absorptive denture of claim 1, wherein: The inner side of the groove of the mounting groove (3) is provided with a second sealing ring (15), and the inner side of the second sealing ring (15) abuts against the molar (4).
4. An adjustable adsorbable denture according to claim 3, wherein: The outer side of the second sealing ring (15) is provided with a number of equally spaced protrusions (16), and the inner side of the mounting groove (3) is provided with a number of equally spaced slots (17), and the protrusions (16) are engaged in the slots (17) at the corresponding positions.
5. The adjustable absorptive denture of claim 1, wherein: Two notches (18) are provided below the inclined slot (11), and the width of the notches (18) is greater than the diameter of the crossbar (8).
6. The adjustable absorptive denture of claim 1, wherein: The molar (4) is a split structure and consists of two symmetrically distributed molars behind the premolar.
Citation Information
Patent Citations
CN216221778U