Improved malocclusion orthodontic activity retainer

Abstract

The utility model belongs to tools used for orthodontic treatment of oral and maxillofacial surfaces, and particularly relates to an improved orthodontic movable retainer for malocclusion. The problems that in the background technology, a steel wire used for manufacturing a labial arch and a clamping ring is a 09 steel wire and cannot be too thin, when the steel wire passes through an occlusal surface gap between 34 and 56, teeth are prone to being cushioned, the occlusal degree is too high, the tooth gap is prone to being widened, the adjacency relation of teeth is damaged, and a patient feels uncomfortable when wearing the steel wire are solved. If a groove is ground at the position, the problem of overhigh occlusion is solved. According to the technical scheme, an upper jaw base and a lower jaw base are fixedly connected with a hyperbolic labial arch through connecting steel wires respectively, a clamping ring is formed at the rear end of the hyperbolic labial arch, a check block is arranged on the arc top of the upper jaw base, and a traction curve is formed on the front portion of the clamping ring on the hyperbolic labial arch connected with the lower jaw base. The device is suitable for maintaining the oral and maxillofacial orthodontic state.

Description

Technical Field

[0001] This utility model relates to tools used in oral and maxillofacial orthodontics, and in particular to an improved active retainer for malocclusion orthodontics. Background Technology

[0002] Retention after orthodontic treatment is a crucial step in preventing relapse, and the use of retainers is essential at this stage. Currently, retainers are mainly divided into two categories clinically: fixed retainers and removable retainers. Fixed retainers are suitable for a few special cases, while most patients prefer removable retainers. Traditional removable retainers typically consist of three parts: a labial arch, clasps, and a lingual base. There are two main connection methods: one involves bending the U-shaped labial arch through the occlusal space between molars 3 and 4, wrapping it around to the lingual side, and embedding it in the lingual base, while the clasps are independently fixed to the posterior molars; the other method involves welding the posterior part of the labial arch to the cusp of the posterior molar, with the mesial arm of the cusp bending through the occlusal space between molars 5 and 6 to the lingual side and embedding it in the lingual base.

[0003] However, both traditional designs have significant shortcomings. First, the main material for the labial arch and clasps is 09 gauge steel wire, which has a limited diameter, making it difficult to balance strength and flexibility. Second, when passing through the interproximal gaps between the 34 and 56 occlusal surfaces, it easily causes tooth padding and excessive occlusion, even widening the interdental space and disrupting the interproximal relationship. Furthermore, patients often experience discomfort during wear, affecting compliance. To address excessive occlusion, grooves are sometimes ground in the relevant locations, but this may damage the enamel layer on the tooth surface, further increasing the risk of tooth injury. Finally, the welding process between the labial arch and the clasps is complex, and weld failure is prone to occur during use, reducing the lifespan and stability of the device.

[0004] In summary, to further optimize the design of removable retainers, improve their retention and patient comfort, and reduce potential damage to teeth and adjacent surfaces, it is necessary to develop a new removable retainer design that is more stable, easier to operate, and does not damage the tooth structure, in order to meet the high standards required for retention after modern orthodontic treatment. Utility Model Content

[0005] The purpose of this invention is to propose an improved orthodontic retainer for malocclusion to address the following issues in the prior art: The wire used to fabricate the labial arch and clasps is 0.9 gauge wire, which cannot be too thin. When passing through the occlusal surface gap between 34 or 56 gauge teeth, it easily causes tooth padding, excessive occlusion, and widening of interdental spaces, disrupting the adjacent tooth relationship and causing discomfort for the patient. While grinding grooves in this area solves the problem of excessive occlusion, it damages the enamel layer on the tooth surface, causing other problems. Furthermore, welding the labial arch and clasps is troublesome and prone to weld failure. The technical solution adopted to address this problem is: an improved orthodontic retainer for malocclusion, characterized in that: the maxillary and mandibular bases are fixedly connected to the double-curved labial arch via connecting wires; a clasp is formed at the rear end of the double-curved labial arch; a stop is provided at the apex of the maxillary base; and a traction curve is formed at the front of the clasp on the double-curved labial arch connecting to the mandibular base. The connecting wire has one end embedded in the maxillary denture base and the other end fixed between the double-curved labial arch and the clasp. The connecting wire also has one end embedded in the mandibular denture base and the other end fixed between the double-curved labial arch and the traction bend. Both the maxillary and mandibular denture bases are made of biocompatible polymer material and manufactured through resin thermoforming or 3D printing. The double-curved labial arch and clasp are made of 0.5mm diameter stainless steel wire. The connecting wire diameter is 0.5mm to 1.0mm. A stop block is located in the anterior region of the maxillary denture base, 1-3mm from the edge of the base, extending from the distal end of the left lateral incisor to the distal end of the right lateral incisor, with a height of 3-5mm. It is vertical on the incisor side and forms a 30-60° bevel on the palatal side, with a width of 3-5mm. The traction bend is located between the mandibular connecting wire and the clasp, with a height of 3-4mm and a width of 2-3mm, tilted distally at 40-50°, for securing the rubber band.

[0006] The beneficial effects of this utility model compared with the prior art are as follows: By adopting the above technical solution, the shortcomings of the original movable retainer, such as excessive engagement, poor comfort, poor retention, and complex manufacturing process that is prone to weld failure, are overcome. The movable retainer can use fine wire, resulting in normal engagement, good comfort, excellent retention, and simple and convenient manufacturing. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the maxillary base portion of this utility model;

[0008] Figure 2 yes Figure 1 Top view;

[0009] Figure 3 This is a schematic diagram of the mandibular base portion of this utility model;

[0010] Figure 4 yes Figure 3 Top view. Detailed Implementation

[0011] Example: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 An improved orthodontic retainer for malocclusion is characterized in that: the maxillary and mandibular bases 1 are respectively fixedly connected to the double-curved labial arches 2 by connecting wires 3; the rear end of the double-curved labial arches 2 forms a retainer 4; a stop block 5 is provided at the apex of the arc of the maxillary base 1; and a traction curve 6 is formed at the front of the retainer 4 on the double-curved labial arches 2 connecting to the mandibular base 1; one end of the connecting wire 3 is embedded in the maxillary base 1, and the other end is fixed between the double-curved labial arches 2 and the retainer 4; one end of the connecting wire 3 is embedded in the mandibular base 1, and the other end is fixed between the double-curved labial arches 2 and the traction curve 6; the maxillary and mandibular bases 1 are made of high-molecular biocompatible materials and manufactured by resin thermoforming or 3D printing; the double-curved labial arches 2 and the retainer 4 are made of stainless steel wire with a diameter of 0.5 mm; and the diameter of the connecting wire 3 is 0.5 mm to 1.0 mm.

[0012] The stop block 5 is located in the anterior tooth area of ​​the maxillary denture base 1, 1-3 mm from the edge of the denture base. Its length extends from the distal end of the left lateral incisor to the distal end of the right lateral incisor, with a height of 3-5 mm. It is a vertical plane on the side close to the incisor and forms a 30-60° slope on the palatal side, with a width of 3-5 mm. The traction bend 6 is located between the mandibular connecting wire 3 and the clasp 4, with a height of 3-4 mm and a width of 2-3 mm. It is inclined distally at 40-50° and is used for fixing the rubber band.

Claims

1. An improved malocclusion orthodontic active retainer, characterized by: The maxillary and mandibular bases (1) are fixedly connected to the double-curved labial arch (2) by connecting wires (3). A retaining ring (4) is formed at the rear end of the double-curved labial arch (2). A stop block (5) is set at the top of the arc of the maxillary base (1). A traction curve (6) is formed at the front of the retaining ring (4) on the double-curved labial arch (2) connected to the mandibular base (1).

2. The improved orthodontic retainer for malocclusion as described in claim 1, characterized in that: One end of the connecting wire (3) is embedded in the maxillary base (1), and the other end is fixed between the double-curved labial arch (2) and the retaining ring (4).

3. The improved malocclusion orthodontic active holder according to claim 1 or 2, characterized in that: One end of the connecting wire (3) is embedded in the mandibular base (1), and the other end is fixed between the double-curved lip arch (2) and the traction curve (6).

4. The improved malocclusion orthodontic active holder according to claim 1 or 2, characterized in that: The maxillary and mandibular bases (1) are made of high molecular biocompatible materials and manufactured by resin thermoforming or three-dimensional printing.

5. The improved malocclusion orthodontic active holder according to claim 1 or 2, characterized in that, The hyperbolic lip bow (2) and the retaining ring (4) are made of stainless steel wire with a diameter of 0.5 mm.

6. The improved malocclusion orthodontic active holder according to claim 1 or 2, characterized in that: The diameter of the connecting steel wire (3) is 0.5 mm to 1.0 mm.

7. The improved malocclusion orthodontic active holder according to claim 1 or 2, characterized in that, The stop block (5) is located in the anterior tooth area of ​​the maxillary denture base (1), 1-3 mm from the edge of the denture base. Its length extends from the distal end of the left lateral incisor to the distal end of the right lateral incisor, with a height of 3-5 mm. The side closest to the incisor is a vertical plane, while the palatal side forms a 30-60° slope with a width of 3-5 mm.

8. An improved orthodontic retainer for malocclusion as described in claim 1 or 2, characterized in that, The traction bend (6) is located between the mandibular connecting wire (3) and the retaining ring (4), with a height of 3-4 mm and a width of 2-3 mm, tilted 40-50° to the distal end, and is used to fix the rubber band.

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