Denture base support
By designing the base, clasps, elastic bar, and sealing rubber ring, the problems of loosening of missing teeth brackets and food debris entering are solved, resulting in a more stable and comfortable missing teeth bracket that improves the user's chewing experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN PAFEIKE DENTURE TECH CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-23
AI Technical Summary
Existing braces for missing teeth are prone to loosening and tilting when worn, and food debris can easily get into the gap between the brace and the alveolar bone, affecting the user's comfort.
A framework for missing teeth was designed, which adopts a base, clasps and denture structure. The base covers the alveolar bone of the missing tooth, the clasps are fixed to the abutment tooth, the elastic bar connects adjacent bases, the sealing rubber ring fits tightly to the alveolar bone, and the micro airbag disperses chewing pressure to improve stability and comfort.
The base and clasp design provide stable support to prevent the support from falling off, the elastic bar adapts to dynamic changes in the oral cavity, the sealing rubber ring reduces the feeling of foreign objects, and the micro airbags disperse chewing pressure, improving user comfort and chewing efficiency.
Smart Images

Figure CN224387571U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of dental prosthesis technology and relates to a bracket for missing teeth. Background Technology
[0002] Tooth loss, whether complete or partial, is a common problem in dental restoration. Tooth loss affects a person's health and the aesthetics of their teeth, and it also reduces chewing efficiency. For example, missing posterior teeth can reduce the chewing surface area or lead to insufficient chewing, potentially causing indigestion and gastrointestinal disorders. Typically, people with missing teeth can wear removable dentures as a restoration method. However, when wearing dentures, food debris can enter the dentures and other components through gaps during chewing. Furthermore, insufficient contact area between the denture and the abutment teeth can cause the denture to loosen or tilt, resulting in a poor user experience. Utility Model Content
[0003] The purpose of this invention is to provide a dental arch support, which aims to solve the problems of existing dental arch support systems being prone to loosening and tilting during wear, and food residue easily entering the gap between the support and the alveolar bone when the user chews food.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a tooth-loss support, comprising a base, clasps, and a denture; the denture is disposed on the base, the base is used to wrap the alveolar bone at the site of the missing tooth, and there are multiple bases, with an elastic rod connecting any two adjacent bases for conforming to the inner wall of the alveolar bone, and the base is provided with clasps for wrapping and fixing to the periphery of the abutment tooth; the outer edge of the base is provided with a sealing rubber ring for conforming to the alveolar bone.
[0005] Optionally, the baseplate has a micro-airbag on the side facing away from the denture, and the number of micro-airbags is multiple and they are distributed in a dispersed manner.
[0006] Optionally, a connecting strip extends from one side of the retaining ring and is placed inside the base. The connecting strip is provided with multiple placement slots for placing the micro airbag. One end of the micro airbag is placed in the placement slot, and the other end passes through the base and is used to contact the alveolar bone.
[0007] Optionally, the micro airbag is made of medical-grade silicone and is filled with air.
[0008] Optionally, there are two denture bases, and each denture base is provided with at least one of the dentures for restoring the alveolar bone of the corresponding missing tooth.
[0009] Optionally, the retaining ring is an RPI retaining ring.
[0010] Optionally, the retaining ring is an RPA retaining ring.
[0011] Optionally, the base is made of resin.
[0012] The beneficial effects of this utility model are as follows: This utility model provides a dental arch support structure. The base of the denture wraps around and adheres to the alveolar bone of the missing tooth, providing a fixed foundation for the denture. The clasps wrap around and fix the denture to the abutment tooth, connecting the base to the healthy adjacent teeth and providing more stable support for the base and denture, preventing the support structure from being pried or falling off. The elastic bar utilizes its elastic properties to adapt to dynamic changes in the oral cavity, such as slight deformation between the alveolar bone during chewing or opening and closing the mouth, avoiding pressure from the rigid structure on the alveolar bone and improving the overall user comfort. The sealing rubber ring fits tightly to the alveolar soft tissue, reducing the entry of food debris and saliva into the gap between the base and the alveolar bone, while also reducing the feeling of a foreign body. Attached Figure Description
[0013] Figure 1 This is a three-dimensional schematic diagram of a tooth loss support provided by this utility model;
[0014] Figure 2 This is a three-dimensional structural diagram of a dental arch support provided by this utility model for a user to wear;
[0015] Figure 3 A three-dimensional structural diagram of the connecting strip, retaining ring, and micro airbag assembly provided by this utility model.
[0016] The annotations in the attached figures are explained as follows:
[0017] 1. Tooth loss support frame; 11. Base; 12. Clasp; 120. Connecting bar; 121. Placement slot; 13. Denture; 14. Elastic bar; 15. Sealing rubber ring; 16. Miniature airbag;
[0018] 2. Abutment teeth. Detailed Implementation
[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. It should be understood that this application is not limited to the exemplary embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0020] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] The following is in conjunction with the appendix Figure 1 To be continued Figure 3 This application describes a tooth loss support 1 provided in an embodiment.
[0022] In this embodiment, a tooth-loss support 1 includes a base 11, clasps 12, and a denture 13. The denture 13 is disposed on the base 11. The base 11 is used to cover the alveolar bone at the site of the missing tooth. There are multiple bases 11, and an elastic rod 14 for conforming to the inner wall of the alveolar bone is connected between any two adjacent bases 11. The base 11 is provided with clasps 12 for covering and fixing to the outer periphery of the abutment tooth 2. The outer edge of the base 11 is provided with a sealing rubber ring 15 for conforming to the alveolar bone.
[0023] Specifically, this application provides a tooth loss support 1, in which the base 11 and the denture 13 are integrally formed. The denture 13 is disposed on the base 11, and one or more dentures 13 can be disposed on one base 11, depending on the specific circumstances of the user. For example, if a user is missing two teeth on each side, and the missing teeth belong to the same jaw, the bracket has two bases 11 connected by a flexible bar 14. Each base 11 has two dentures. When the user wears the bracket, the base 11 is placed in the alveolar position of the missing teeth and fits the alveolar bone. Each base 11 has a clasp 12, which can be placed on one or both sides of the base 11. If only one side of the base 11 is close to the abutment tooth 2, i.e., the user's natural tooth, a clasp 12 is placed on that side of the base 11 to connect the base 11 and the abutment tooth 2. If both sides of the base 11 are close to the abutment tooth 2, clasps 12 can be placed on both sides of the base 11, and each clasp 12 is connected to a different abutment tooth 2. The clasp 12 fixes the base 11 and the user's abutment tooth 2, and the flexible bar 14 connecting the two bases 11 is made of a flexible metal material that can adapt to the user's biting and mouth opening.
[0024] If a user is missing the last two teeth in the left molar and the last two teeth in the right molar, and also missing two incisors, and the missing teeth are all in the upper jaw, when the user wears the missing teeth bracket 1, the bracket has three bases 11, which fit the alveoli of the user's missing teeth respectively, and the left and right bases 11 are provided with clasps 12 on the side near the abutment teeth 2, and the clasps 12 are connected to the abutment teeth 2. The base 11 located in the position of the incisors is provided with clasps 12 on both sides and the clasps 12 are connected to the abutment teeth 2 on both sides. There is an elastic bar 14 between the left base 11 and the middle base 11, and there is also an elastic bar 14 between the middle base 11 and the right base 11.
[0025] Furthermore, when the user wears the missing teeth bracket 1, a sealing rubber ring 15 is provided in the gap between the outer edge of the base 11 and the alveolar bone, which has a sealing effect.
[0026] Therefore, when the user wears the missing tooth bracket 1, the base 11 wraps around and adheres to the alveolar bone of the missing tooth, providing a fixed base for the denture 13. The clasp 12 wraps around and fixes to the abutment tooth 2, connecting the base 11 with the healthy adjacent tooth, providing more stable support for the base 11 and the denture 13, and preventing the bracket from being pried or falling off. The elastic bar 14 uses its elastic properties to adapt to dynamic changes in the oral cavity, such as slight deformation between the alveolar bone during chewing or opening and closing the mouth, avoiding pressure from the rigid structure on the alveolar bone, thus improving the overall comfort of the user. The sealing rubber ring 15 fits tightly to the alveolar soft tissue, reducing the entry of food debris and saliva into the gap between the base 11 and the alveolar bone, while also reducing the feeling of a foreign body.
[0027] In one embodiment, the base 11 is provided with a micro airbag 16 on the side opposite to the denture 13, and the number of micro airbags 16 is multiple and they are distributed in a dispersed manner.
[0028] Specifically, multiple micro-airbags 16 are disposed on one side of the base 11, close to the alveolar surface. The micro-airbags 16 are biocompatible, made of medical-grade silicone or TPU, resistant to saliva corrosion, soft, and non-irritating. The micro-airbags 16 are manufactured using a traditional method: a certain amount of spherical raw material is placed into a mold using feeding pliers. The upper and lower molds close to form a cavity. The raw material and mold are then heated as a whole. An air needle is inserted into the heated raw material through its channel and inflated. After inflation, the air needle is withdrawn from the channel, and the micro-airbags 16 are removed and cooled.
[0029] Therefore, when the user wears the missing teeth bracket 1, the denture 13 is used for chewing food. Multiple dispersed air bladders can distribute the chewing pressure on the denture 13 to different areas, reducing the pressure on the local alveolar bone and the skin and mucous membrane on the alveolar bone. In addition, the oral mucosa will undergo slight deformation with chewing, speaking and other actions. The dispersed air bladders can dynamically adapt to this change and maintain a good fit.
[0030] One side of the retaining ring 12 extends a connecting strip 120 placed inside the base 11. The connecting strip 120 is provided with a plurality of placement slots 121. The placement slots 121 are used to place the micro airbag 16. One end of the micro airbag is placed in the placement slot 121, and the other end passes through the base 11 and is used to contact the alveolar bone.
[0031] Specifically, the connecting strip 120 and the retaining ring 12 are integrally formed. The connecting strip 120 extends into the interior of the base 11 and has a plurality of uniformly sized placement slots 121. The connecting strip 120 is block-shaped and disposed inside the base 11, and its shape and size match the base 11. The placement slots 121 are used to place micro-airbags 16 of corresponding sizes. The micro-airbags 16 are embedded in the connecting strip 120, and one end passes through the base 11 and protrudes from the surface of the base 11. When worn, the end protruding from the surface of the base 11 contacts the alveolar bone and the user's oral cavity.
[0032] Therefore, the micro airbags 16 are first embedded on the connecting strip 120 and placed together in a specific mold. Then, the materials for making the base 11 and the denture 13 are placed into the cavity of the mold and cured by a chemical reaction at room temperature. When filling by hand, air bubbles can be removed by vibrating the mold or manually venting the air holes.
[0033] In another embodiment, the connecting strip 120 may be strip-shaped and disposed in a portion of the interior of the base 11.
[0034] In one embodiment, the micro airbag 16 is made of medical-grade silicone and is filled with air.
[0035] Specifically, the miniature airbag 16 is made of medical-grade silicone, which is a silicone material that has been verified for biocompatibility. It is designed specifically for the medical field. The core difference between medical-grade silicone and ordinary industrial or daily chemical silicone lies in the high requirements of medical-grade silicone for biocompatibility, chemical stability and sterility.
[0036] Therefore, the micro-airbag 16 is filled with air, which utilizes the compressibility and atmospheric pressure support properties of air to flexibly buffer and disperse local pressure when subjected to force, reducing pressure on the alveolar bone and other mucosal tissues. Furthermore, the micro-airbag 16 is made of medical-grade silicone, possessing strong stability and biocompatibility, ensuring that users will not experience allergic reactions or be corroded by food or saliva.
[0037] In one embodiment, there are two denture bases 11, and each denture base 11 is provided with at least one denture 13 for repairing the alveolar bone of the corresponding missing tooth.
[0038] Specifically, in Figure 1 In the illustrated embodiment, there are two denture bases 11, and each denture base 11 has three dentures 13, corresponding to the last three molars of the user. When the user is missing the last three molars of the left and right sides of the upper or lower jaw, wearing this missing tooth bracket 1 can fill the alveolar bone of the missing teeth.
[0039] In another embodiment, there are two denture bases 11, each with a denture 13 corresponding to one lateral incisor on each side of the user's maxillary alveolar bone. This allows the dental arch support 1 to fill in the missing teeth when the user is missing one lateral incisor on each side of the maxilla. In practical applications, the shape of each denture base 11 and the number of dentures 13 vary depending on the number and location of the user's missing teeth. For example, each denture base 11 may have one, two, four, or other dentures 13 to restore the alveolar bone corresponding to the missing tooth.
[0040] In one embodiment, the retaining ring 12 is an RPI retaining ring.
[0041] Specifically, the RPI clasp 12, also known as the Rest-Proximal Plate-I bar Clasp clasp, consists of three parts: a mesial (occlusal) rest, a distal proximal plate, and a bar I. The mesial rest is located within the rest recess of the mesial marginal ridge of the abutment tooth 2, with the bottom of the recess at an angle to the perpendicular line of the long axis of the abutment tooth 2. The distal proximal plate fits against the distal surface of the abutment tooth 2, forming a guide plane. The bar I is the arm of an I-shaped bar that extends from the base 11 into the buccal undercut of the abutment tooth 2.
[0042] Thus, the RPI clasp 12 achieves efficient retention through mechanical conduction optimization, three-dimensional retention design, and biological protection mechanism, while the load on the abutment tooth 2 is not very large.
[0043] In one embodiment, the retaining ring 12 is an RPA retaining ring.
[0044] Specifically, the RPA clasp 12 is based on the RPI clasp and is called the Rest-Proximal Plate-Aker clasp, which includes a mesial (occlusal) support, a distal proximal plate, and a circular clasp.
[0045] RPA clasps overcome the limitations of RPI clasps by using a circular clasp retention arm instead of a bar. When the user's oral vestibule depth is insufficient or there is obvious tissue undercut on the buccal side of the abutment tooth, RPI clasps are not suitable. When wearing RPA clasps, the circular clasp extends from the denture base and ascends along the buccal gingival margin of the abutment tooth, providing a wider coverage area and avoiding direct contact with the gingival sulcus.
[0046] In one embodiment, the base 11 is made of resin.
[0047] Specifically, both the base 11 and the denture 13 on the base 11 are made of resin.
[0048] The resin base 11 and denture 13 have good hardness and can withstand daily discomfort. They also have low density, so the weight is light when wearing them and they will not harm the user's oral cavity.
[0049] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0050] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0051] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0052] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. 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 application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A framework for missing teeth, characterized in that, Including baseplates, clasps, and dentures; The denture is placed on a base, which is used to cover the alveolar bone at the site of the missing tooth. There are multiple bases, and any two adjacent bases are connected by an elastic rod for conforming to the inner wall of the alveolar bone. The base is provided with a clasp for covering and fixing to the outer periphery of the abutment tooth. The outer edge of the base is provided with a sealing rubber ring for conforming to the alveolar bone.
2. The tooth loss framework according to claim 1, characterized in that, The baseplate has a micro airbag on the side facing away from the denture, and the micro airbags are multiple and distributed in a dispersed manner.
3. A tooth-loss framework according to claim 2, characterized in that, One side of the retaining ring extends a connecting strip placed inside the base. The connecting strip has multiple placement slots for placing the micro airbag. One end of the micro airbag is placed in the placement slot, and the other end passes through the base and is used to contact the alveolar bone.
4. A tooth-loss framework according to claim 3, characterized in that, The micro airbag is made of medical-grade silicone and is filled with air.
5. A tooth-loss framework according to claim 3, characterized in that, The base is two, and each base is provided with at least one of the dentures for restoring the alveolar bone of the corresponding missing tooth.
6. A tooth-loss framework according to claim 3, characterized in that, The retaining ring is an RPI retaining ring.
7. A tooth-loss framework according to claim 3, characterized in that, The retaining ring is an RPA retaining ring.
8. A tooth loss framework according to any one of claims 1 to 7, characterized in that, The base is made of resin.