Chiffon opener holder
By designing a chi-type open bite retainer, utilizing structures such as a base, double-curved labial arch, and lingual grid, the shortcomings of existing retainers in maintaining tooth alignment stability and managing open bite relationship are addressed, achieving effective suppression of open bite relapse and improved long-term stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-04-07
AI Technical Summary
Existing retainers lack specific design features for maintaining tooth alignment stability and managing open bite, resulting in a high relapse rate after orthodontic treatment and affecting long-term stability.
A chi-type open retainer was designed, comprising maxillary and mandibular components. The components consist of a base, a double-curved labial arch, connecting wires, and clasps. A lingual grid and posterior occlusal pad are provided to inhibit tongue protrusion and posterior over-eruption. Comfort and stability are improved through self-curing resin material and an antibacterial coating.
It effectively inhibits relapse and improves the long-term stability of orthodontic treatment. It is comfortable to wear and easy to manufacture, making it suitable for clinical promotion.
Smart Images

Figure CN224085469U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of orthodontic instruments, and in particular to a chi-type open mouthpiece for retention after orthodontic treatment. Retainer. Background Technology
[0002] open This is a common clinical error Malocclusion, manifested as the inability to close the bite in the anterior or posterior teeth region, leads to limited chewing function, speech abnormalities, and aesthetic problems. For open bites after orthodontic treatment... For patients, controlling anterior tooth open bite Maintaining alignment is crucial for achieving orthodontic results. Existing retainers lack specific design features for sustaining vertical tooth movement, potentially leading to higher relapse rates and impacting long-term stability. Therefore, a retention device is needed clinically that can simultaneously maintain tooth alignment stability and effectively manage open bite. Utility Model Content
[0003] Technical objective: To overcome the shortcomings of existing technologies, this utility model provides a hinged opening mechanism. Retainers maintain the stability of tooth alignment and inhibit tooth splitting. It helps control relapse trends and improves the long-term stability of orthodontic treatment by assisting in the control of jaw position changes.
[0004] Technical solution: To achieve the above objectives, this utility model discloses a type of open-face design. The retainer includes a maxillary component and a mandibular component. Both the maxillary and mandibular components include a base, a double-curved labial arch, a connecting wire, and clasps. The clasps are integrally formed with the double-curved labial arch and are disposed on both sides of the double-curved labial arch. The double-curved labial arch and the clasps are disposed around the closed end of the base and are connected to the base via the connecting wire. The end of the clasp away from the double-curved labial arch extends into the interior of the base. The base of the maxillary component is provided with a lingual ridge, and the base of the mandibular component is provided with a posterior occlusal pad.
[0005] Furthermore, the lingual grid is configured as a U-shaped structure, with the open end of the lingual grid embedded in the anterior tooth area of the denture base, and the closed end bent toward the lingual side; several lingual grids are provided, spaced apart from the distal end of the left lateral incisor to the distal end of the right lateral incisor.
[0006] Furthermore, the tongue is 1-3 mm from the edge of the base and has a height of 3-5 mm.
[0007] Furthermore, the posterior occlusal pad is placed at the location of the permanent molars on the denture base, and its height is set to 1-5mm and its width to 5-7mm according to the patient's occlusion.
[0008] Furthermore, one end of the connecting wire is embedded inside the base, and the other end is wrapped and fixed between the hyperboloid lip bow and the retaining ring.
[0009] Furthermore, one end of the connecting wire on the mandibular component is embedded inside the base, and the other end is positioned between the posterior occlusal pad and the hyperboloid labial arch.
[0010] Furthermore, the base is made of self-curing resin and its surface is coated with an antibacterial coating.
[0011] Furthermore, the hyperbolic labial arch and the clasp are made of stainless steel wire with a diameter of 0.7 mm and are matched to the patient's tooth shape.
[0012] Furthermore, the diameter of the connecting wire is 0.5mm to 1.0mm, so that it does not damage adjacent teeth when passing through the interproximal gap of the occlusal surface.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] The opening of this utility model Holder, for open wrong To meet the patient's specific needs, this treatment, while providing standard retention force, achieves vertical control and enhances stability. By incorporating a lingual frenulum, tongue protrusion is restricted, and the frenulum's undercut design avoids the stinging pain caused by contact between the frenulum and the tongue, a problem common in existing technologies. Furthermore, the inclusion of a posterior occlusal pad maintains posterior tooth anchorage and reduces anterior open bite. This invention reduces the risk of recurrence and improves upon the shortcomings of traditional retainers in vertical support. Retainer, with significant protection against opening The relapse prevention effect can effectively inhibit bad tongue habits and open bite caused by relapse and elongation of posterior teeth. The problem is that it improves the long-term efficacy of orthodontic treatment, is comfortable to wear, and is easy to manufacture, making it suitable for clinical application. Attached Figure Description
[0015] Figure 1 Side view of the maxillary component of the retainer;
[0016] Figure 2 Top view of the retainer maxillary assembly;
[0017] Figure 3 Top view of the retainer mandibular assembly;
[0018] Figure 4 Side view of the mandibular component of the retainer.
[0019] In the diagram, 1. Base; 2. Double-curved labial arch; 3. Connecting wire; 4. Cladles; 5. Lingual rail; 6. Posterior occlusal pad. Detailed Implementation
[0020] The following is in conjunction with the appendix Figure 1 To be continued Figure 4 The principles and features of this utility model are described, and the examples given are only used to explain this utility model and are not intended to limit the scope of this utility model.
[0021] A type of chiffon The retainer includes a maxillary component and a mandibular component. Both the maxillary and mandibular components include a base 1, a double-curved labial arch 2, a connecting wire 3, and clasps 4. The base 1 of the maxillary component has several lingual rails 5, and the base 1 of the mandibular component has posterior occlusal pads 6. During use, the orthodontist will apply the Chi-style open... The retainer is worn on the patient's maxillary or mandibular dentition after orthodontic treatment to maintain post-treatment stability.
[0022] The base plate 1 is made of self-curing resin or other high-molecular biocompatible materials. It can be prepared by resin thermoforming or 3D printing technology to ensure good fit with oral soft tissue and tooth surface. Its surface can be coated with antibacterial coating according to individual needs to achieve antibacterial effect.
[0023] The clasps 4 are integrally formed with the double-curved labial arch 2 and symmetrically positioned on both sides of the double-curved labial arch 2, meaning each double-curved labial arch 2 corresponds to two clasps 4. The two clasps 4 are respectively engaged with the maxillary or mandibular first permanent molar to ensure stable retention. The double-curved labial arch 2 is located on the labial side of the anterior teeth, providing additional retention force to stabilize the teeth and prevent displacement. U-shaped bends are symmetrically positioned near both ends of the double-curved labial arch 2, and adjusting these bends reduces interdental gaps. The double-curved labial arch 2 and clasps 4 are positioned around the closed end of the base 1 and connected to the base 1 via a connecting wire 3. The end of the clasp 4 furthest from the double-curved labial arch 2 extends into the interior of the base 1. One end of the connecting wire 3 is embedded inside the base 1, while the other end is wrapped and fixed between the double-curved labial arch 2 and the clasp 4.
[0024] The hyperbolic labial arch 2 and clasp 4 are made of 0.7mm diameter stainless steel wire, precisely bent and adjusted to match the patient's tooth shape to provide personalized orthodontic retention force.
[0025] The diameter of the connecting wire 3 is 0.5mm to 1.0mm, and its length and bending angle must be adapted to the tooth shape to ensure that it does not damage adjacent teeth when passing through the interproximal gap of the occlusal surface.
[0026] The lingual rail 5 is designed with a U-shaped structure. The open end of the lingual rail 5 is embedded in the anterior tooth area of the base 1, and the closed end is curved towards the lingual side. Several lingual rails 5 are provided, spaced from the distal end of the left lateral incisor to the distal end of the right lateral incisor. Specifically, the lingual rail 5 is 1-3 mm from the edge of the base 1, and its height is 3-5 mm. During wear, the lingual rail 5 can inhibit the habit of tongue protrusion and regulate the anterior teeth opening... The trend has a restraining effect and reduces the opening to some extent. Risk of recurrence.
[0027] The posterior occlusal pad 6 is positioned at the location of the permanent molar corresponding to the mandibular component base 1. One end of the connecting wire 3 on the mandibular component is embedded inside the base 1, and the other end is positioned between the posterior occlusal pad 6 and the double-curved labial arch 2. The height of the posterior occlusal pad 6 is set to 1–5 mm, and the width is 5–7 mm, depending on the patient's occlusion. The posterior occlusal pad 6 maintains the vertical anchorage of the posterior teeth and prevents secondary open bite caused by over-eruption of the posterior teeth. This enhances the control effect on the opening #imgpt21# and improves the long-term stability after treatment.
[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A type of chiffon-style opening The retainer is characterized in that, The device includes a maxillary component and a mandibular component. Both the maxillary and mandibular components include a base (1), a double-curved labial arch (2), a connecting wire (3), and a clasp (4). The clasp (4) is integrally formed with the double-curved labial arch (2) and is disposed on both sides of the double-curved labial arch (2). The double-curved labial arch (2) and the clasp (4) are disposed around the closed end of the base (1) and are connected to the base (1) through the connecting wire (3). The end of the clasp (4) away from the double-curved labial arch (2) extends into the interior of the base (1). A lingual grating (5) is provided on the base (1) of the maxillary component, and a posterior occlusal pad (6) is provided on the base (1) of the mandibular component.
2. The chisel-type opening according to claim 1 The retainer is characterized in that, The lingual grid (5) is configured as a U-shaped structure. The open end of the lingual grid (5) is embedded in the anterior tooth area of the base (1), and the closed end is bent toward the lingual side. Several lingual grids (5) are provided, which are spaced from the distal end of the left lateral incisor to the distal end of the right lateral incisor.
3. The chisel-type opening according to claim 2 The retainer is characterized in that, The tongue (5) is 1-3 mm from the edge of the base (1) and has a height of 3-5 mm.
4. The chisel-type opening according to claim 1 The retainer is characterized in that, The posterior occlusal pad (6) is placed on the base (1) at the position corresponding to the permanent molar, and its height is set to 1-5 mm and its width is 5-7 mm according to the patient's occlusion.
5. The chisel-type opening according to claim 1 The retainer is characterized in that, One end of the connecting wire (3) is embedded inside the base (1), and the other end is wrapped and fixed between the hyperboloid lip bow (2) and the retaining ring (4).
6. The chisel-type opening according to claim 5 The retainer is characterized in that, One end of the connecting wire (3) on the mandibular component is embedded inside the base (1), and the other end is positioned between the posterior occlusal pad (6) and the hyperbolic labial arch (2).
7. The chiffon-style opening according to claim 1 The retainer is characterized in that, The base (1) is made of self-curing resin and its surface is coated with an antibacterial coating.
8. The chisel-type opening according to claim 1 The retainer is characterized in that, The hyperbolic labial arch (2) and the clasp (4) are made of stainless steel wire with a diameter of 0.7 mm and are matched to the patient's tooth shape.
9. The chisel-type opening according to claim 1 The retainer is characterized in that, The connecting wire (3) has a diameter of 0.5mm to 1.0mm and does not damage adjacent teeth when passing through the interproximal gap of the occlusal surface.