Improved composite dental arch splint

By incorporating a crack-prevention component between the fiber dental arch splint and the metal dental arch splint, the problem of end-to-end cracking during the cutting of the fiber dental arch splint is solved, achieving continuity and stability of the fiber dental arch splint, which is suitable for fixation of dental trauma.

CN224220278UActive Publication Date: 2026-05-12HOSPITAL OF STOMATOLOGY GUANGZHOU MEDICAL UNIVERSITY (YANGCHENG HOSPITAL OF GUANGZHOU MEDICAL UNIVERSITY)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HOSPITAL OF STOMATOLOGY GUANGZHOU MEDICAL UNIVERSITY (YANGCHENG HOSPITAL OF GUANGZHOU MEDICAL UNIVERSITY)
Filing Date
2025-05-14
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing methods of fixing dental trauma, fiber arch splints are prone to cracking at the ends during cutting, affecting their subsequent use.

Method used

An improved composite dental arch splint is designed by setting an anti-cracking component between a fiber dental arch splint and a metal dental arch splint, including setting an anti-detachment protrusion on the metal dental arch splint and knotting it when the quartz fiber is wound, forming a multi-directional rope-like weave.

Benefits of technology

This effectively prevents the fiber dental arch splint from cracking at the ends during cutting, ensuring that the entire splint is not easily detached and guaranteeing the continuity and effectiveness of subsequent use.

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Abstract

The utility model relates to an improved composite dental arch splint which comprises a metal dental arch splint, the periphery of the metal dental arch splint is wrapped with the fiber dental arch splint, and an anti-cracking assembly used for preventing the fiber dental arch splint from cracking when the fiber dental arch splint is sheared is arranged between the fiber dental arch splint and the metal dental arch splint. The anti-cracking component is arranged between the fiber dental arch splint and the metal dental arch splint, and the tail end of the fiber dental arch splint is not easy to crack when the fiber dental arch splint is clipped and used by using the anti-cracking component, so that the fiber dental arch splint can be prevented from being dispersed, and the subsequent use is not influenced.
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Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a modified composite dental arch splint. Background Technology

[0002] Dental trauma, primarily affecting the anterior teeth, has become a common and frequently occurring disease in oral emergency departments. In the past, the main fixation method for dental trauma followed the treatment methods used for jaw fractures in maxillofacial trauma, namely, rigid fixation with dental arch splints and wire ligation. In recent years, more emphasis has been placed on physiological fixation of dental trauma, i.e., elastic fixation. With the advent of bonding technology and light-cured composite resins in the 1960s, significant progress has been made in methods of fixing dental trauma. Composite resin splint fixation is easy to perform clinically and has an aesthetically pleasing appearance.

[0003] Prior art CN212281751 U discloses a tooth avulsion fixation device, including a resin arch splint and light-cured resin units. The light-cured resin units are fixed to the abutment tooth and the labial surface of the tooth to be repositioned. The resin arch splint is sequentially fixedly connected to all the light-cured resin units. In use, the length is measured with dental floss, and the correct length of the fiber arch splint is cut from the packaging using scissors.

[0004] The above method has the following drawbacks: the correct length of the fiber dental arch splint needs to be cut from the packaging for later use. However, the fiber dental arch splint is usually formed by weaving several strands of quartz fiber in a multi-directional rope-like manner. When cutting, the ends are prone to cracking, causing them to detach and disperse, which affects subsequent use.

[0005] Therefore, it is necessary to design an improved composite dental arch splint to solve the technical problems mentioned above. Utility Model Content

[0006] This application provides an improved composite dental arch splint. The fiber dental arch splint is less prone to cracking at the ends when cut and used, which can prevent it from spreading and thus not affect subsequent use.

[0007] To address the above problems, this application provides an improved composite dental arch splint, comprising: a metal dental arch splint; and a fiber dental arch splint, wherein the fiber dental arch splint is wrapped around the outer periphery of the metal dental arch splint, and an anti-cracking component is provided between the fiber dental arch splint and the metal dental arch splint to prevent the fiber dental arch splint from cracking during cutting.

[0008] A preferred embodiment is that the fiber dental arch splint comprises quartz fibers; a plurality of strands of the quartz fibers are woven in a multidirectional rope-like manner around the outer periphery of the metal dental arch splint to wrap the metal dental arch splint.

[0009] A preferred embodiment is that the anti-cracking component includes a plurality of anti-detachment protrusions disposed on the metal dental arch splint, the anti-detachment protrusions being arranged sequentially and spaced apart along the length direction of the metal dental arch splint; the quartz fiber is also sequentially and continuously wound around each of the anti-detachment protrusions when weaving and winding around the outer periphery of the metal dental arch splint, and knotting is also performed on each of the anti-detachment protrusions.

[0010] A preferred solution is to use barbs as the anti-detachment ridge.

[0011] A preferred embodiment is that the barbs are obliquely disposed on the metal dental arch splint.

[0012] A preferred option is that the barbs are made of stainless steel.

[0013] A preferred option is that the metal dental arch splint is made of stainless steel.

[0014] A preferred embodiment is that the fiber dental arch splint is fixed to the tooth surface by a light-cured resin unit.

[0015] Beneficial effects:

[0016] This application provides an improved composite dental arch splint, which wraps a fiber dental arch splint around a metal dental arch splint, and provides an anti-cracking component between the fiber dental arch splint and the metal dental arch splint. With the use of the anti-cracking component, the end of the fiber dental arch splint is not easy to crack or detach when it is cut from the packaging, thus not affecting subsequent use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the improved composite dental arch splint in this embodiment;

[0018] Figure 2 This is a schematic diagram of the fiber dental arch splint in this embodiment;

[0019] Figure 3 This is a schematic diagram of a single strand of quartz fiber braided and wound around a metal dental arch splint in this embodiment;

[0020] Figure 4 This is a schematic diagram of the modified composite dental arch splint fixed to the tooth surface in this embodiment.

[0021] Figure label:

[0022] 10. Metal dental arch splint; 20. Fiber dental arch splint; 21. Quartz fiber; 30. Anti-cracking component; 31. Anti-detachment protrusion; 40. Light-cured resin unit; 50. Repositioned tooth; 60. Abutment tooth. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0024] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0025] This application provides an improved composite dental arch splint. The fiber dental arch splint is not easy to crack or detach when cut from the packaging, and does not affect subsequent use.

[0026] The following detailed description, in conjunction with the accompanying drawings, illustrates an improved composite dental arch splint provided in this embodiment. Please refer to the attached drawings. Figure 1-3 As shown, the improved composite dental arch splint includes a metal dental arch splint 10 and a fiber dental arch splint 20. The fiber dental arch splint 20 covers the entire outer periphery of the metal dental arch splint 10, and a crack-resistant component 30 is provided between the fiber dental arch splint 20 and the metal dental arch splint 10 to prevent the fiber dental arch splint 20 from cracking during cutting. Figure 1 In the illustration of the fiber dental arch splint 20 wrapping around the outer periphery of the metal dental arch splint 10, a portion is omitted. The fiber dental arch splint 20 is wrapped along... Figure 1 The dotted lines in the image tightly wrap around the outer periphery of the entire metal dental arch splint 10 and the crack-resistant component 30.

[0027] In this embodiment, the fiber dental arch splint 20 is wrapped around the metal dental arch splint 10, that is, the metal dental arch splint 10 is built inside the fiber dental arch splint 20. A crack-prevention component 30 is provided between the fiber dental arch splint 20 and the metal dental arch splint 10 to prevent the ends of the fiber dental arch splint 20 from cracking during cutting. On the one hand, the metal dental arch splint 10 can serve as a support point, facilitating the placement of the crack-prevention component 30 between the metal dental arch splint 10 and the fiber dental arch splint 20. With the use of the crack-prevention component 30, the ends of the fiber dental arch splint 20 are less likely to crack or detach when cut from the packaging, thus not affecting subsequent use. Simultaneously, the metal dental arch splint 10 is placed inside the fiber dental arch splint 20, allowing the fiber dental arch splint 20 and the metal dental arch splint 10 to be bent to a corresponding arc before being placed on top of the loose teeth for fixation.

[0028] In this embodiment, it should be noted that the main materials of the fiber dental arch splint 20 are quartz fiber 21 and epoxy resin. Several strands of quartz fiber 21 can be manually or mechanically wound around the outer periphery of the metal dental arch splint 10 and woven in a multi-directional rope shape, and then impregnated in epoxy resin and cured under high pressure and high temperature to form the final product.

[0029] Fiber dental arch splint 20 possesses good fracture and tensile strength, is chemically stable, biocompatible, and has a transparent and aesthetically pleasing appearance. Fiber dental arch splint 20 can be used in orthodontic treatment as an auxiliary material to help adjust tooth position and alignment, especially during the retention period after orthodontic treatment; it can also be used to stabilize loose teeth caused by periodontitis, trauma, or other reasons; and it can also serve as a support material to help restore tooth shape and function.

[0030] Please continue to refer to Figure 1-3 As shown, in some embodiments, the anti-cracking component 30 includes a plurality of anti-detachment protrusions 31 disposed on the metal dental arch splint 10. The plurality of anti-detachment protrusions 31 are arranged sequentially and spaced apart along the outer periphery of the metal dental arch splint 10 and along the length direction of the metal dental arch splint 10, and the spacing between them is small. When each quartz fiber 21 is weaving and winding around the outer periphery of the metal dental arch splint 10, it is also sequentially and continuously wound around each anti-detachment protrusion 31, and knotting is also performed on each anti-detachment protrusion 31. Then, the quartz fiber 21 is wrapped around the metal dental arch splint 10 in a multi-directional rope-like weave to form a whole. By setting several anti-detachment protrusions 31 on the metal dental arch splint 10, when quartz fiber 21 is used to weave and wrap around the outer periphery of the metal dental arch splint 10, it is also continuously wrapped around each anti-detachment protrusion 31 in sequence, and knotting is performed on each anti-detachment protrusion 31. In this way, the entire quartz fiber 21 is equivalent to being fixed in segments and forming a whole with the metal dental arch splint 10. When the corresponding length is cut from the packaging for use, since each strand of quartz fiber 21 is knotted with each anti-detachment protrusion 31 during the weaving process, the cut end is not easy to crack, thus avoiding dispersion.

[0031] In some embodiments, the anti-detachment ridge 31 is configured as a barb, and the barb is obliquely fixed to the metal dental arch splint 10. By using the barb obliquely fixed to the metal dental arch splint 10, the angle between the barb and the metal dental arch splint 10 is small, and the anti-detachment force of the quartz fiber 21 is relatively good.

[0032] In some embodiments, the metal dental arch splint 10 is made of stainless steel, specifically formed by bending stainless steel retaining wire. Similarly, the barbs on the metal dental arch splint 10 are also made of stainless steel.

[0033] Please refer to Figures 1-4As shown, in some embodiments, the fiber dental arch splint 20 is fixed to the tooth surface by a light-cured resin unit 40. First, the loose tooth surface is acid-etched, then an adhesive is applied, and then a flowing resin is applied on top. Then, the fiber dental arch splint 20 is immersed in the flowing resin to fit tightly against the tooth surface and is then light-cured to form the light-cured resin unit 40. The fiber dental arch splint 20 is fixed to the tooth surface by the light-cured resin unit 40.

[0034] The implementation principle of this embodiment is as follows: During use, a section of dental floss is taken and its length is measured at the fixed tooth position. The correct length of the fiber dental arch splint 20 is cut from the packaging using scissors. It is important to note that 2-3 extra fiber dental arch splints 20 should be reserved to ensure that the fiber dental arch splint 20 meets the actual length requirements of the tooth curvature. Then, a wooden wedge is inserted into the interdental space to facilitate cleaning. Acid etching is performed on the labial incisal 1 / 3 and middle 1 / 3 junction of the repositioned tooth 50, and routine acid etching is performed on the tooth surface of the abutment tooth 60. The tooth is then rinsed, dried, and a bonding agent is evenly applied, followed by light curing for 20 seconds. Then, from one… Starting with the abutment tooth 60 on the side, a thin layer of flowing resin is placed on the tooth surface. Then, one end of the fiber arch splint 20 is placed on the flowing resin. The splint 20 is held in place with a light-curing knife to immerse it in the flowing resin and make it fit tightly against the tooth surface. Each tooth is fixed one by one until it is completely fitted, and each tooth is cured with light for 40 seconds to form a light-cured resin unit 40. During light curing, care should be taken to block the light source for teeth that have not yet been cured to prevent other parts of the fiber arch splint 20 from being cured by light. After the entire fiber arch splint 20 is fixed in place, it is finally polished, the occlusion is adjusted, and it is fixed for a period of time.

[0035] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A modified composite dental arch splint, characterized in that, include: Metal dental arch splint (10); A fiber dental arch splint (20) is provided, which wraps around the outer periphery of the metal dental arch splint (10), and a crack-prevention component (30) is provided between the fiber dental arch splint (20) and the metal dental arch splint (10) to prevent the fiber dental arch splint (20) from cracking during cutting.

2. The improved composite dental arch splint according to claim 1, characterized in that, The fiber dental arch splint (20) comprises quartz fiber (21); Several strands of the quartz fiber (21) are woven in a multi-directional rope-like manner around the outer periphery of the metal dental arch splint (10) to wrap the metal dental arch splint (10).

3. The improved composite dental arch splint according to claim 2, characterized in that, The anti-cracking component (30) includes a plurality of anti-dislodgement protrusions (31) disposed on the metal dental arch splint (10), and the anti-dislodgement protrusions (31) are arranged and distributed sequentially at intervals along the length direction of the metal dental arch splint (10); The quartz fiber (21) is continuously wound around each of the anti-detachment ridges (31) while weaving around the outer periphery of the metal dental arch splint (10), and is knotted on each of the anti-detachment ridges (31).

4. The improved composite dental arch splint according to claim 3, characterized in that, The anti-detachment protrusion (31) is configured as a barb.

5. The improved composite dental arch splint according to claim 4, characterized in that, The barbs are obliquely disposed on the metal dental arch splint (10).

6. The improved composite dental arch splint according to claim 4 or 5, characterized in that, The barbs are made of stainless steel.

7. The improved composite dental arch splint according to claim 1, characterized in that, The metal dental arch splint (10) is made of stainless steel.

8. The improved composite dental arch splint according to claim 1, characterized in that, The fiber dental arch splint (20) is fixed to the tooth surface by a light-cured resin unit (40).