Chiffon type III retainer

Abstract

The utility model relates to the technical field of medical instruments, in particular to a chiffon III type retainer which comprises an upper jaw assembly and a lower jaw assembly, the upper jaw assembly and the lower jaw assembly respectively comprise a base plate located on the tongue side, two clamping rings and two hyperbolic labial arches, and the clamping rings and the hyperbolic labial arches are located outside the base plates and connected with the base plates. The upper jaw assembly and the lower jaw assembly are arranged on the two sides of the hyperbolic labial arch respectively, a connecting steel wire is arranged between the clamping ring and the hyperbolic labial arch, chiffon type traction bends are further arranged between the connecting steel wire and the clamping ring of the upper jaw assembly, and traction bends which are arranged on the two sides of the hyperbolic labial arch in a staggered mode and are close to the middle are arranged on the two sides of the hyperbolic labial arch of the lower jaw assembly. According to the double-curved labial arch retainer, the connecting strength of the clamping ring and the double-curved labial arch is increased, the stability of the retainer is enhanced, the situation that the orthodontic effect is reduced due to tooth movement is avoided, and meanwhile, the retainer further has the orthodontic function aiming at the A type III malformation due to the arrangement of the chiffon traction curve and the traction curve.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, it relates to Q type III type retainer. BACKGROUND

[0002] After the treatment of Angle's class III malocclusion, wearing the retainer is an important step to prevent recurrence and rebound, most patients tend to use active retainers, and the traditional active retainer is usually composed of a labial arch, a clasp and a lingual base, and its connection mode mainly includes two kinds: one is that the U-shaped curve of the labial arch is connected to the lingual side through the occlusal surface adjacent gap between the canine and the first premolar, and is embedded into the lingual base, and the clasp is independently fixed on the molar; the other way is that the labial arch is welded to the tip of the molar, and the mesial arm of the tip is bent to the lingual side through the occlusal surface adjacent gap between the 56 and embedded into the lingual base.

[0003] The traditional active retainer design has the following disadvantages: first, the main material of the labial arch and the clasp is 09 steel wire, the material diameter is limited, it is difficult to balance the strength and flexibility, and welding is easy to occur; second, when passing through the occlusal surface adjacent gap between the canine and the first premolar, or the second premolar and the first permanent molar, it is easy to cause the pad tooth and the occlusion to be too high, even cause the interdental space to be widened, destroy the adjacent relationship, and the patient often feels uncomfortable during wearing, which affects the compliance; third, the traditional active retainer only plays a role in keeping after the treatment of Angle's class III malocclusion, and cannot balance the function of correction. UTILITY MODEL CONTENTS

[0004] TECHNICAL OBJECTIVE: In order to overcome the deficiencies in the prior art, the utility model provides a Q type III type retainer.

[0005] TECHNICAL SCHEME: In order to achieve the above object, the utility model discloses a Q type III type retainer, which comprises a maxillary component and a mandibular component, the maxillary component and the mandibular component each comprise a base on the lingual side and a clasp and a double-curved labial arch outside the base and connected with the base, the number of the clasp is two, and the clasp is arranged on the two sides of the double-curved labial arch, a connecting steel wire is arranged between the clasp and the double-curved labial arch, and a Q type traction curve is further arranged between the connecting steel wire and the clasp in the maxillary component, and a traction curve is arranged on the two sides of the double-curved labial arch in the mandibular component, which is arranged in a staggered manner with the Q type traction curve and close to the middle.

[0006] Preferably, the Q type traction curve is inclined to the distal end at an angle of 40-50°, the width is 2-3mm, and the height is 3-4mm.

[0007] Preferably, a rubber band is hung between the Q type traction curve and the traction curve.

[0008] Preferably, the material of the double-curved labial arch and the clasp is stainless steel wire or nickel-titanium alloy wire.

[0009] Preferably, one end of the connecting steel wire is wound on the clasp and the hyperbolic lip arch, and the other end is embedded in the base through the occlusal surface adjacent gap, and the connecting steel wire is made of steel wire with a diameter of 0.5-1.0 mm.

[0010] Preferably, the base of the maxillary assembly is provided with a plurality of spaced J-shaped Qijie needles in the left distal side incisor to the right distal side incisor area.

[0011] Preferably, the number of J-shaped Qijie needles is 4-6, 2-3 on each side, the length of the J-shaped Qijie needle is 5-8 mm, and the distance between the J-shaped Qijie needles is 2-4 mm.

[0012] Preferably, the base is made of a high polymer material, and the surface is coated with an antibacterial coating.

[0013] The beneficial effects of the utility model are:

[0014] 1. By optimizing the connection mode, the connection strength of the clasp and the hyperbolic lip arch is increased, the stability of the retainer is enhanced, the backtracking of the correction effect caused by tooth movement is avoided, and the retainer also has the correction function for Angle III malocclusion through the setting of Qijie traction curve and traction curve.

[0015] 2. The reasonable structure design and the selection of the fine wire diameter reduce the problems of occlusal height and interdental space widening, reduce the stimulation to the oral soft tissue, make the patient wear more comfortable, improve the compliance, avoid the tooth damage caused by grinding enamel, reduce the risk of tooth sensitivity and caries, the improved connection structure improves the fatigue resistance of the device, and the device is more suitable for long-term wear. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the maxillary assembly of the utility model;

[0017] Figure 2 It is a front view of the maxillary assembly of the utility model;

[0018] Figure 3 It is a front view of the mandibular assembly of the utility model;

[0019] Figure 4 It is a perspective view of the mandibular assembly of the utility model.

[0020] In the drawing, 1, base; 2, hyperbolic lip arch; 3, connecting steel wire; 4, clasp; 5, J-shaped Qijie needle; 6, Qijie traction curve; 7, traction curve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings Figure 1 to the drawings Figure 4The principle and characteristics of the utility model are described, the examples are only used to explain the utility model, and are not used to limit the range of the utility model.

[0022] A type III Qian holder is used for wearing after the treatment of type III malocclusion, belongs to an active holder, and like Figures 1-4 As shown, the upper jaw assembly and the lower jaw assembly need to be worn at the same time in order to ensure the wearing effect of the patient.

[0023] The upper jaw assembly and the lower jaw assembly both include a base 1 located on the lingual side, and a clasp 4 and a hyperbolic labial arch 2 located outside the base 1 and connected with the base 1. The number of the clasp 4 is two, and the clasp 4 is arranged on both sides of the hyperbolic labial arch 2. The hyperbolic labial arch 2 and the clasp 4 are both made of stainless steel wire or nickel-titanium alloy wire and can provide personalized orthodontic retention force through precise bending adjustment.

[0024] The base 1 is made of a high polymer material and is made through a resin hot-pressing forming process or a three-dimensional printing mode, so as to ensure the accurate fitting with the oral soft tissue and the tooth surface. In order to reduce the bacterial growth during wearing, an antibacterial coating can be coated on the surface of the base 1 according to the periodontal health status of the patient and individual needs. At the same time, the hyperbolic labial arch 2 and the clasp 4 can also be coated on the surface according to the periodontal health status of the patient and individual needs, so as to enhance the corrosion resistance and durability and be suitable for long-term wearing. The antibacterial coating and the coating treatment mode are well known to those skilled in the art and will not be described here.

[0025] In order to increase the strength of the holder, provide stable retention force, and prevent the hyperbolic labial arch 2 from shaking, a connecting steel wire 3 is arranged between the clasp 4 and the hyperbolic labial arch 2. One end of the connecting steel wire 3 is wound on the clasp 4 and the hyperbolic labial arch 2, and the other end is buried in the base 1 through the occlusal surface adjacent gap. The material selected for the connecting steel wire 3 is a steel wire with a diameter of 0.5-1.0 mm. After the length and bending angle of the connecting steel wire 3 are optimized and designed, the thin wire diameter ensures that the connecting steel wire 3 will not cause damage to the adjacent teeth when passing through the occlusal surface adjacent gap.

[0026] The base 1 of the upper jaw assembly is internally provided with multiple Qian J-shaped spurs 5 arranged at intervals from the distal side of the left lateral incisor to the distal side of the right lateral incisor. The Qian J-shaped spur 5 provides preventive retention force for preventing recurrence after treatment. Specifically, the number of Qian J-shaped spurs 5 is 4-6, and 2-3 Qian J-shaped spurs 5 are arranged on each side. The distance between two Qian J-shaped spurs 5 is 2-4 mm, and the length of the Qian J-shaped spur 5 is 5-8 mm. Usually, the barb at the end of the Qian J-shaped spur 5 faces the tooth side. During the treatment process, the doctor can adaptively adjust the specific number, distance and length of the Qian J-shaped spur 5 according to the specific condition of the patient.

[0027] In order to make the retainer have the correction effect in the wearing process of the patient with the Class III malocclusion, the maxillary assembly is further provided with a Q-type traction curve 6 integrally formed by the steel wire between the connecting steel wire 3 and the clasp 4, the Q-type traction curve 6 is inclined to the distal end at an angle of 40-50°, the width is 2-3 mm, and the height is 3-4 mm. The inclination angle, the width and the height can be adjusted according to the actual situation of the patient. The mandibular assembly is provided with a traction curve 7 arranged in a staggered manner and close to the middle on both sides of the double-curved lip arch 2. The Q-type traction curve 6 and the traction curve 7 are hung with a rubber band. Through the traction of the rubber band, the maxillary assembly and the mandibular assembly are continuously subjected to the pulling force, so that the correction effect can be achieved, and the correction effect caused by the tooth movement can be avoided. In order to improve the fitting degree and the precision of the production and optimize the production efficiency, the whole retainer can be customized through the digital scanning and 3D printing technology.

[0028] When used, the orthodontist wears the Q-type III retainer on the maxillary and mandibular dentition of the patient after treatment, the double-curved lip arch 2 is located on the labial side of the anterior teeth, and the clasp 4 is located on the first permanent molar of the maxilla or the mandible, thereby playing a retaining role. The doctor can suggest the patient to wear it all day except when eating and brushing teeth, or to wear it at night or every other day according to the condition of the dentition, so as to consolidate the treatment effect and avoid the regression.

[0029] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A Coopervision® III style retainer characterized by: The application relates to a dental appliance comprising a maxillary component and a mandibular component, each of which comprises a lingual base (1) and a clasp (4) and a double-curved lip arch (2) outside and connected to the base (1), the number of the clasp (4) is two, and the clasp (4) is arranged on both sides of the double-curved lip arch (2), a connecting steel wire (3) is arranged between the clasp (4) and the double-curved lip arch (2), a Q-type traction curve (6) is arranged between the connecting steel wire (3) and the clasp (4) of the maxillary component, and a traction curve (7) is arranged on both sides of the double-curved lip arch (2) of the mandibular component and is arranged in a staggered manner with the Q-type traction curve (6).

2. The Gen III type retainer of claim 1, wherein: The Q-type traction curve (6) is inclined to the distal end at an angle of 40-50 DEG, the width is 2-3 mm, and the height is 3-4 mm.

3. The Gen III type retainer of claim 1, wherein: The Q-type traction curve (6) and the traction curve (7) are hung with rubber bands.

4. The Gen III type retainer of claim 1, wherein: The materials of the double-curved lip arch (2) and the clasp (4) are stainless steel wires or nickel-titanium alloy wires.

5. The Gen III type retainer of claim 1, wherein: One end of the connecting steel wire (3) is wound on the clasp (4) and the double-curved lip arch (2), and the other end is buried in the base (1) through the occlusal surface adjacent gap, and the material of the connecting steel wire (3) is a steel wire with a diameter of 0.5-1.0 mm.

6. The Gen III type retainer of claim 1, wherein: The base (1) of the maxillary component is internally provided with a plurality of Q-type J-shaped spurs (5) arranged at intervals from the distal end of the left lateral incisor to the distal end of the right lateral incisor.

7. The Gen III type retainer of claim 6, wherein: The number of the Q-type J-shaped spur (5) is 4-6, 2-3 on each side, the length of the Q-type J-shaped spur (5) is 5-8 mm, and the distance between the Q-type J-shaped spurs (5) is 2-4 mm.

8. The Gen III type retainer of claim 1, wherein: The material of the base (1) is a high polymer material, and the surface is coated with an antibacterial coating.

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