An early functional appliance for the oral cavity of a child

Abstract

The present application relates to the technical field of oral orthodontic medical equipment, and particularly relates to a child oral early-stage functional corrector, which comprises a hollow dental crown and a transparent base, the dental crown is detachably connected to the side wall of the base, a framework is fixedly connected to the inner bottom wall of the dental crown, a sliding block is slidably connected to the framework, a hollow sliding rod is fixedly connected to the top of the sliding block, the top of the sliding rod is fixedly connected to the inner top wall of the dental crown, a pressure relief assembly for dispersing vertical occlusal force and converting it into horizontal cooperative pressure is symmetrically arranged on the side wall of the sliding block, and a ring for fixing the base to healthy teeth is symmetrically arranged on the base. The present application is used for correcting the teeth of children, can assist occlusion when the children are toothless, can form a cooperative stress structure with adjacent teeth, effectively disperses occlusal force, avoids local stress concentration, stably fits the oral cavity, and helps children restore part of the mastication function when toothless.

Description

Technical Field

[0001] This invention relates to the field of orthodontic medical equipment technology, specifically to an early functional orthodontic appliance for children. Background Technology

[0002] Children typically begin losing their baby teeth around age six. Premature loss of primary teeth during this period—meaning they fall out before the permanent teeth erupt—can lead to a series of oral problems. Firstly, premature loss of primary teeth reduces chewing function, making it difficult to chew food thoroughly and affecting the digestion and absorption of nutrients, thus hindering growth and development. Secondly, the lack of support in the missing tooth area causes adjacent teeth to gradually tilt and shift into the gap, rapidly narrowing it. When the permanent teeth erupt later, insufficient space can easily lead to misalignment and disordered teeth, potentially resulting in malocclusion and even affecting facial development and speech.

[0003] Currently, dentists typically recommend wearing a space maintainer for cases of premature loss of primary teeth. This device is used to maintain the space between missing teeth, prevent adjacent teeth from tilting and opposing teeth from elongating, and create space for the eruption of permanent teeth. Common space maintainers include the Aitejia removable functional maintainer, which mainly consists of a base and a denture. It can maintain the space between missing teeth, prevent adjacent teeth from tilting, and the denture can fill in the missing tooth area, improve aesthetics, and maintain the child's psychological well-being.

[0004] However, due to the high cost of custom-made removable functional retainers, which require meticulous grinding of the denture to fit the gap at the missing tooth, and the fact that the denture is installed independently, it cannot form a cooperative force-bearing structure with the adjacent teeth, causing some children to experience difficulty biting and making it difficult to restore normal chewing.

[0005] Therefore, the present invention provides an early functional orthodontic appliance for children's oral cavity to solve the above-mentioned problems. Summary of the Invention

[0006] To address the aforementioned issues, this invention provides an early functional orthodontic appliance for children's oral cavity, which is used for children's dental orthodontics and can assist occlusion when children have missing teeth. It also forms a cooperative force-bearing structure with adjacent teeth, stably fitting the oral cavity and helping children restore some chewing function when they have missing teeth.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: A child early oral functional orthodontic appliance includes a hollow crown and a transparent base. The crown is detachably connected to the side wall of the base. A skeleton is fixedly connected to the inner bottom wall of the crown. A slider is slidably connected to the skeleton. A hollow slide rod is fixedly connected to the top of the slider. The top of the slide rod is fixedly connected to the inner top wall of the crown. The side wall of the slider is symmetrically provided with pressure relief components for dispersing and converting vertical occlusal force into lateral synergistic pressure. The base is symmetrically provided with rings for fixing the base to healthy teeth.

[0008] The technical principles of the above solution are as follows: When wearing the crown, first place the base inside your mouth, then place the crown on the missing deciduous tooth, bite down, and the bottom of the crown fits against the gum. The slide bar moves downward, pushing the slider downward. The pressure relief component on the side wall of the slider is activated, which converts the vertical biting pressure into lateral pressure, thereby making the crown and the surrounding healthy teeth work together to ensure that the crown is securely worn and to distribute the biting force.

[0009] The above approach has the following beneficial effects: 1. In this solution, the crown and base are detachably connected, making it easy to change the crown to a suitable one according to the child's oral development. This eliminates the need to replace the entire orthodontic appliance, reducing the cost of use. At the same time, it adapts to the oral size of children at different growth stages, improving the orthodontic fit.

[0010] 2. In this design, the slider and the frame slide together, and with the pressure relief component on the side wall of the slider, the vertical biting force generated when the child chews can be effectively dispersed, avoiding excessive local biting force that could damage the child's delicate teeth and gums, and improving the comfort and safety of wearing the device.

[0011] 3. In this solution, the fixing components at both ends of the base can firmly fix the braces to healthy teeth, preventing the braces from shifting or falling off during wear, ensuring that the corrective force is continuously applied to the teeth to be corrected, improving the orthodontic effect, and at the same time not affecting the child's normal chewing.

[0012] Furthermore, a resin layer is provided on the top of the crown.

[0013] Beneficial effects: It can enhance the wear resistance and structural strength of the crown, extend its service life, and the resin material has good biocompatibility, will not irritate the oral mucosa of children, and improve the safety of wearing it.

[0014] Furthermore, the sidewalls of the crown are composed of an elastic layer.

[0015] Beneficial effects: The elastic layer on the sidewall of the crown can adapt to the morphological differences inside the child's mouth, improve the fit between the sidewall of the crown and the sidewall of the adjacent teeth, and at the same time, the elastic material can buffer the impact during chewing, further enhancing wearing comfort and preventing scratches to the oral mucosa.

[0016] Furthermore, a silicone liner is provided at the bottom of the crown.

[0017] Beneficial effects: Silicone material is soft and skin-friendly with good biocompatibility, which can reduce friction between the tooth crown and the gum surface.

[0018] Furthermore, a locking bead is fixedly connected to the frame, and a locking groove corresponding to the locking bead is provided on the slider.

[0019] Beneficial effects: It can lock the sliding position of the slider to prevent it from sliding randomly during wearing and chewing, ensuring that the pressure relief component can stably play its role in dispersing bite force and improving the structural stability of the orthodontic appliance.

[0020] Furthermore, each pressure relief assembly includes a pressure relief plate and a hinge assembly for converting vertical biting force into lateral pressure, with the pressure relief plate fixed to the elastic layer.

[0021] Beneficial effects: The pressure relief assembly converts the vertical biting force into lateral pressure through the hinge assembly, which, together with the pressure relief plate, is transmitted to the elastic layer. This can more efficiently disperse the biting force and avoid local stress concentration. At the same time, the pressure relief plate is fixed to the elastic layer, further improving the pressure relief effect and wearing comfort.

[0022] Furthermore, each hinge assembly includes a first hinge rod, and the other end of each first hinge rod is hinged to a second hinge rod, the other end of which is fixedly connected to the corresponding pressure relief plate.

[0023] Beneficial effects: The hinge assembly adopts a structure in which the first hinge rod and the second hinge rod are hinged together, which can flexibly realize the conversion of vertical biting force into lateral pressure. The structure is simple, the transmission is smooth, and it is easy to install and maintain, reducing the production and maintenance costs of the orthodontic device.

[0024] Furthermore, a pivot pin is provided at the hinge joint of the first hinge rod and the second hinge rod, and both ends of the pivot pin are fixed to the inner wall of the crown by a fixed shaft.

[0025] Beneficial effects: Enhances the structural stability of the hinge assembly, prevents loosening or detachment at the hinge, and ensures long-term stable operation of the pressure relief assembly.

[0026] Furthermore, the base is equipped with a bowwire, with both ends of the bowwire fixedly connected to the rings on both sides.

[0027] Beneficial effects: It can form an overall orthodontic framework, enabling simultaneous force and coordinated adjustment of teeth on both sides, which is conducive to standardizing the shape of the dental arch and the arrangement of teeth, and helps children's orthodontic treatment.

[0028] Furthermore, each band is equipped with a ligation loop.

[0029] Beneficial effects: By setting ligatures on the bands, stable and reliable fixation points can be provided for the archwire, keeping the archwire in a stable position during orthodontic treatment. This prevents loosening or displacement due to external forces such as chewing and oral movements, ensuring accurate and continuous transmission of orthodontic force and improving the overall stability of the orthodontic appliance. Attached Figure Description

[0030] Figure 1 This is an isometric view of the early functional orthodontic appliance for children according to the present invention; Figure 2 This is a schematic diagram illustrating the wearing of the early functional orthodontic appliance for children according to the present invention; Figure 3 This is an axial sectional view of the crown of the tooth; Figure 4 This is a sectional view of the crown of the tooth; Figure 5 for Figure 4 Enlarged view of section A.

[0031] The reference numerals in the accompanying drawings of the instruction manual include: 1. Crown; 2. Base; 3. Skeleton; 4. Slider; 5. Slide bar; 6. Ring; 7. Resin layer; 8. Elastic layer; 9. Silicone soft liner; 10. Locking bead; 11. Locking groove; 12. Pressure relief plate; 13. First hinge rod; 14. Second hinge rod; 15. Pin; 16. Archwire; 17. Ligation ring. Detailed Implementation

[0032] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] The following detailed description illustrates the specific implementation method: Example 1:

[0036] As attached Figure 1 and Figure 3 As shown: A pediatric early functional orthodontic appliance includes a hollow crown 1 and a transparent base 2 (the number of crowns 1 can be adjusted according to the actual number of missing teeth in the child). The crown 1 is detachably connected to the side wall of the base 2. A skeleton 3 is welded to the inner bottom wall of the crown 1. A slider 4 is slidably connected to the skeleton 3. A hollow slide rod 5 is welded to the top of the slider 4. The top of the slide rod 5 is fixedly connected to the inner top wall of the crown 1. The side wall of the slider 4 is symmetrically provided with pressure relief components for dispersing the vertical biting force and converting it into lateral synergistic pressure. The base 2 is symmetrically provided with rings 6 for fixing the base 2 to healthy teeth.

[0037] The specific implementation process is as follows: First, disinfect the base 2 and crown 1. Point the base 2 towards the tooth to be fixed, place the retainer in the mouth, then place the base 2 inside the child's gum line. Place the band 6 around the second molar, gently press the band 6 with your finger, and fix the band 6 to the posterior tooth. Figure 2 As shown, ensure that it fits the tooth surface and is firmly retained without loosening or shifting. Then locate the position of the missing tooth and place the crown 1 at the site of the missing primary tooth. The bottom of the base 2 fits against the child's gums, and the sidewall of the crown 1 is fixed to the base 2. Then guide the child to gently bite down. The biting action further compacts the fit between the base 2 and the gums, and between the crown 1 and the missing space. Finally, check whether the band 6 is loose or if there is a foreign body sensation. The fitting is now complete.

[0038] When the top of the crown 1 is subjected to a downward biting force, the top of the crown 1 moves downward, the sidewall of the crown 1 deforms, causing the slide bar 5 inside the crown 1 to move downward. The slide bar 5 pushes the slider 4 downward, and the pressure relief component on the sidewall of the slider 4 is activated. The pressure relief component converts the vertical biting pressure into lateral pressure, thereby enabling the crown 1 and the surrounding healthy teeth to form a coordinated force state, which not only ensures that the crown 1 is worn stably, but also disperses the biting force.

[0039] This solution uses the ring strap 6 to securely fix the base 2 in the oral cavity, providing reliable support for the orthodontic process. At the same time, the cooperation of the slide bar 5, slider 4 and pressure relief component effectively disperses and transmits the biting force, ensuring both the stability of the fit and the protection of children's oral tissues, effectively improving the effectiveness and safety of early functional orthodontic treatment in children.

[0040] Example 2:

[0041] As attached Figure 2 and Figure 3 As shown, the difference from Embodiment 1 is that, to ensure occlusal strength, the crown 1 has a resin layer 7 at its top, and the sidewalls of the crown 1 are composed of an elastic layer 8 made of elastic resin. The bottom of the crown 1 has a silicone soft liner 9. The elastic layer 8 can fit tightly against healthy teeth, maximizing the distribution of occlusal force without affecting healthy teeth. The silicone soft liner 9 protects the child's soft gum tissue. Furthermore, to achieve orthodontic purposes, the base 2 has an archwire 16, with both ends of the archwire 16 connected to two side loops 6. Each loop 6 has a ligature 17, and the two ends of the archwire 16 are fixed by the ligature 17.

[0042] The specific implementation process is as follows: When a child performs a biting motion, the resin layer 7 at the top of the crown 1 first bears the downward biting force. The resin layer 7 effectively ensures the biting strength and prevents the top of the crown 1 from breaking or deforming due to excessive force, providing a stable foundation for the transmission of biting force. At the same time, the elastic layer 8 on the sidewall of the crown 1 undergoes slight elastic deformation under the action of lateral pressure, closely adhering to the surface of the surrounding healthy teeth. Without damaging the healthy tooth structure and periodontal tissues, it transmits the lateral pressure to the surrounding healthy teeth, maximizing the distribution of biting force and avoiding localized force concentration. The silicone soft liner 9 at the bottom of the crown 1 always adheres closely to the child's gums, playing a buffering and protective role during biting movements and pressure transmission, effectively protecting the child's soft and delicate gum tissue and reducing pressure stimulation to the gums.

[0043] The archwire 16 connects to the two side loops 6 and is fixed at both ends by the ligatures 17, forming a stable overall support structure. This prevents the archwire 16 from loosening or shifting during biting movements, while also constraining the alignment of the teeth, gradually straightening and aligning them, making the dentition neat and achieving the purpose of orthodontic treatment.

[0044] This solution combines the occlusal protection of crown 1 with the orthodontic function of archwire 16, taking into account the physiological characteristics and orthodontic needs of children's oral cavity. Through the multi-level crown 1 structure, the occlusal force is scientifically distributed and oral tissues are protected. The archwire 16 fixation structure can assist in the alignment and correction of teeth without the need for wearing multiple additional appliances.

[0045] Example 3:

[0046] As attached Figure 4 and Figure 5 As shown, the difference from Embodiment 2 is that the pressure relief assembly includes a pressure relief plate 12 and a hinge assembly for converting vertical biting force into lateral pressure. The pressure relief plate 12 is welded to the elastic layer 8. The hinge assembly includes a first hinge rod 13, with a second hinge rod 14 hinged to the other end of each first hinge rod 13. The other end of each second hinge rod 14 is fixedly connected to the corresponding pressure relief plate 12. A pin 15 is provided at the hinge joint of the first hinge rod 13 and the second hinge rod 14. Both ends of the pin 15 are fixed to the inner wall of the crown 1 via a fixed shaft. Furthermore, to fix the slider 4, a locking bead 10 is fixedly connected to the skeleton 3, and the slider 4 has a locking groove 11 corresponding to the locking bead 10.

[0047] The specific implementation process is as follows: When the child performs a biting action, the slider 4 drives the first hinge rod 13 to move downward. Since the hinge point between the first hinge rod 13 and the second hinge rod 14 is provided with a pivot pin 15, and both ends of the pivot pin 15 are fixed to the inner wall of the crown 1 through a fixed shaft, the pivot pin 15 effectively constrains the hinge point, preventing the first hinge rod 13 from shifting downward, thereby driving the second hinge rod 14 to expand outward. Since the end of the second hinge rod 14 away from the hinge point is fixedly connected to the corresponding pressure relief plate 12, as the second hinge rod 14 expands outward, the end of the second hinge rod 14 pushes the corresponding pressure relief plate 12 to move laterally to both sides along the radial direction of the crown 1. During the movement, the pressure relief plate 12 squeezes the elastic layer 8 of the side wall of the crown 1, causing the elastic layer 8 to undergo a controllable slight elastic deformation, thereby tightly adhering to the surface of the surrounding healthy teeth, thus achieving the dispersion of biting force.

[0048] After the pressure relief plate 12, the elastic layer 8 and the adjacent teeth form a stable structure, in order to further fix the slider 4, the locking ball 10 closes when the slider 4 slides to the locking ball 10. When the locking groove 11 inside the slider 4 slides to the locking ball 10, the locking ball 10 pops out, thus achieving the purpose of further fixing the slider 4.

[0049] This solution converts the vertical biting force of a child's bite into lateral expansion pressure, and transmits the lateral pressure evenly to the surrounding healthy teeth and periodontal tissues through the elastic layer 8, thereby maximizing the distribution of biting force and fundamentally avoiding tooth damage caused by localized force concentration. At the same time, since the crown 1 can cooperate with the surrounding teeth to form a force-bearing structure, it can help children restore some chewing function.

[0050] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A pediatric early oral functional orthodontic appliance, comprising a hollow crown (1) and a transparent base (2), characterized in that, The crown (1) is detachably connected to the side wall of the base (2). The inner bottom wall of the crown (1) is fixedly connected to the skeleton (3). The skeleton (3) is slidably connected to the slider (4). The top of the slider (4) is fixedly connected to the hollow slide rod (5). The top of the slide rod (5) is fixedly connected to the inner top wall of the crown (1). The side wall of the slider (4) is symmetrically provided with pressure relief components for dispersing the vertical biting force and converting it into lateral synergistic pressure. The base (2) is symmetrically provided with rings (6) for fixing the base (2) to the healthy teeth.

2. The early functional orthodontic appliance for children according to claim 1, characterized in that, The crown (1) has a resin layer (7) on top.

3. The early functional orthodontic appliance for children according to claim 2, characterized in that, The sidewalls of the crown (1) are composed of an elastic layer (8).

4. The early functional orthodontic appliance for children according to claim 3, characterized in that, The crown (1) has a silicone soft liner (9) at the bottom.

5. The early functional orthodontic appliance for children according to claim 4, characterized in that, A locking bead (10) is fixedly connected to the skeleton (3), and a locking groove (11) corresponding to the locking bead (10) is provided on the slider (4).

6. The early functional orthodontic appliance for children according to claim 5, characterized in that, All pressure relief components include a pressure relief plate (12) and a hinge assembly for converting vertical biting force into lateral pressure, with the pressure relief plate (12) fixed to the elastic layer (8).

7. The early functional orthodontic appliance for children according to claim 6, characterized in that, Each hinge assembly includes a first hinge rod (13), and the other end of each first hinge rod (13) is hinged to a second hinge rod (14). The other end of each second hinge rod (14) is fixedly connected to the corresponding pressure relief plate (12).

8. The early functional orthodontic appliance for children according to claim 7, characterized in that, The hinge joint of the first hinge rod (13) and the second hinge rod (14) is provided with a pin (15), and the two ends of the pin (15) are fixed to the inner wall of the crown (1) by a fixed shaft.

9. The early functional orthodontic appliance for children according to claim 8, characterized in that, The base (2) is provided with a bow wire (16), and the two ends of the bow wire (16) are fixedly connected to the ring bands (6) on both sides respectively.

10. The early functional orthodontic appliance for children according to claim 9, characterized in that, Each of the rings (6) is equipped with a ligation ring (17).

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