A removable orthodontic appliance for expanding dental arches

Abstract

The present invention belongs to the technical field of oral orthodontics, and specifically relates to a removable corrector for dental arch expansion, comprising: braces, support bodies and wire bodies, wherein the braces comprise upper braces and lower braces, the upper braces and the lower braces are fixed as one body by bonding occlusal surfaces, the two ends of the support bodies are embedded in the side walls of the braces on the lingual side, the two ends of the wire body are embedded in the side walls of the braces on the buccal side, and the braces are driven by the resilience of the wire body to expand and correct the upper and lower dental arches. The present invention realizes simultaneous dental arch expansion of the upper and lower dental arches by bonding the occlusal surfaces of the upper braces and the lower braces as one body, thereby avoiding the problem of disordered occlusion of the upper and lower dental arches caused by the process of expanding the upper or lower dental arch alone. At the same time, the removable corrector is convenient to install and remove, and is more conducive to oral hygiene during wearing.

Description

Technical Field

[0001] The invention relates to the technical field of oral orthodontics, and in particular to a removable corrector for expanding dental arches. Background Art

[0002] Human teeth are closely arranged in an arc. This arc arrangement of teeth is called a dental arch. Various types of teeth are strictly and orderly arranged on the dental arch, guarding the entrance of the digestive tract with a clamping posture. At the same time, the complete dental arch and teeth support the cheeks and lips together, making the face look plump and plump. However, some people, especially children before puberty, often have relatively slow growth of the bone in the palate suture, and the length and width of the dental arch cannot meet the requirements of supporting tooth growth, resulting in crowded teeth on the dental arch, affecting the normal chewing function of the teeth and the oral digestive function, and seriously affecting the normal development of the face. In this case, orthodontic measures need to be taken to expand the dental arch, stimulate the secretion of bone in the palate suture, and achieve the requirements of strict and tight arrangement of teeth. In the current technology, removable braces are widely used in the field of dental arch expansion orthodontic technology because of their advantages such as flexible band removal and no impact on appearance. This removable brace includes a brace and an expansion mechanism. The brace is mounted on the maxillary or mandibular dental arch, and the expansion mechanism applies tension to the brace to cause the brace to drive the dental arch to expand.

[0003] Chinese utility model patent CN205913411U discloses a dental arch expander, including at least two braces and a bracket, wherein the braces are respectively installed on the teeth on both sides, the bracket is fixed between the adjacent braces, and a metal positioning wire is provided in the braces. The utility model adopts a structure in which the braces and the bracket cooperate, which improves the reliability of tooth correction, has a good correction effect, and is beneficial to the health of the teeth. The dental arch expander described in the utility model can adjust the expansion of the arch according to the size of the distance that needs to be expanded before and after the dental arch, thereby solving the problem that the final result of expanding the dental arch is inconsistent with the design goal. However, the existing oral orthodontic dental arch expansion removable corrector expands the arch separately for the upper jaw or the lower jaw, which is easy to cause the occlusal surface of the upper and lower jaw dental arch teeth to be misaligned, directly affecting the normal chewing of the teeth, and even causing damage to the crowns of the upper and lower jaw teeth due to occlusal confusion. Summary of the invention

[0004] The purpose of the invention is to propose a new technical solution to the problem that the upper and lower jaws cannot be expanded at the same time in the current dental arch expansion technology, which easily causes the occlusal surfaces of the upper and lower jaws to be misaligned.

[0005] Specifically, the present invention provides a removable corrector for expanding a dental arch, comprising: braces, support antibodies and a wire body, wherein the braces include an upper brace for covering the teeth of the maxillary dental arch and a lower brace for covering the teeth of the mandibular dental arch, the upper brace and the lower brace are fixed into one by bonding occlusal surfaces, the occlusal surfaces include the occlusal surfaces of the first bicuspids, the second bicuspids, the first molars and the second molars in the teeth of the upper and lower mandibular dental arches, the two ends of the support antibodies are symmetrically embedded in the two side walls of the brace on the lingual side, when in use, the support antibodies abut against the upper palate of the oral cavity to fix the brace in the oral cavity, the wire body is horizontally symmetrically embedded in the two side walls of the brace on the buccal side, the wire body is arc-shaped on the horizontal plane and is consistent with the shape of the maxillary dental arch, when in use, the wire body drives the brace to generate an expansion force toward the buccal side on the dental arch through the rebound characteristic, so as to achieve the effect of expanding the dental arch.

[0006] Furthermore, the vertical surface of the steel wire body is distributed in an arc shape along the horizontal plane in a sinusoidal wave shape, which increases the stress-bearing surface of the braces while ensuring that the upper and lower braces are evenly stressed.

[0007] Furthermore, the occlusal surface includes the occlusal surface of the first bicuspid, the occlusal surface of the second bicuspid, the occlusal surface of the first molar, the occlusal surface of the second molar and the occlusal surface of the third molar in the teeth of the upper and lower dental arches.

[0008] Furthermore, the braces are made of models of upper and lower dental arches printed using 3D technology.

[0009] Furthermore, the steel wire diameter of the steel wire body is 0.3-0.8 mm.

[0010] Furthermore, the support body is made of metal material into an Ω shape, and two ends of the Ω shape are symmetrically embedded in the two side walls of the brace on the lingual side.

[0011] Furthermore, the steel wire body is made of elastic 316 stainless steel wire.

[0012] Furthermore, the braces are made of heat-vulcanized silicone rubber.

[0013] Compared with the existing dental arch expansion corrector, the corrector of the present invention has the following beneficial effects:

[0014] 1. The corrector of the present invention achieves simultaneous dental arch expansion of the upper and lower dental arches by bonding the occlusal surfaces of the upper braces and the lower braces together, thereby avoiding the problem of confusion in the occlusion of the upper and lower dental arches caused by the process of expanding the upper or lower dental arch alone.

[0015] 2. The corrector described in the present invention is a removable corrector, which is easy to install and remove. The user can flexibly control the timing and method of cleaning the corrector according to their own needs, thereby more effectively ensuring oral hygiene during wearing.

[0016] 3. The corrector of the present invention has a simple and firm structure, is easy to manufacture, has a wide range of elastic force selection, and is easy to control. It can protect the teeth while expanding the dental arch, and can also fully take into account the user's image maintenance while using it. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the top view of the corrector of the present invention.

[0018] Figure 2 for Figure 1 3D rendering of .

[0019] As shown in the figure: 1-braces, 1.1-upper braces, 1.2-lower braces, 2-antibodies, 3-wires, 4-occlusal surface of the first bicuspids, 5-occlusal surface of the second bicuspids, 6-occlusal surface of the first molars, 7-occlusal surface of the second molars. DETAILED DESCRIPTION

[0020] Below, combined with the attached Figures 1-2 , the corrector of the present invention is further explained.

[0021] like Figures 1-2 As shown, a removable corrector for expanding a dental arch comprises: a brace 1, an armature body 2 and a wire body 3, wherein the brace 1 comprises an upper brace 1.1 for covering the teeth of the maxillary dental arch and a lower brace 1.2 for covering the teeth of the mandibular dental arch, the upper brace 1.1 and the lower brace 1.2 are fixed into one by bonding occlusal surfaces, the occlusal surfaces comprising a first bicuspid occlusal surface 4, a second bicuspid occlusal surface 5, a first molar occlusal surface 6 and a second molar occlusal surface 7 in the teeth of the upper and lower mandibular dental arches, the two ends of the armature body 2 are symmetrically embedded in the two side walls of the brace 1 on the lingual side, in use, the armature body 2 abuts against the upper palate of the oral cavity to fix the brace 1 in the oral cavity, the wire body 3 is horizontally symmetrically embedded in the two side walls of the brace 1 on the buccal side, the wire body 3 is arc-shaped on the horizontal plane and is consistent with the shape of the maxillary dental arch, in use, the wire body 3 drives the brace 1 to generate an expansion force toward the buccal side on the dental arch through the rebound characteristic, thereby achieving the effect of expanding the dental arch.

[0022] Furthermore, the vertical surface of the steel wire body 3 is distributed in an arc shape along the horizontal plane in a sinusoidal waveform, which increases the stress-bearing surface of the braces 1 while ensuring that the upper braces 1.1 and the lower braces 1.2 are evenly stressed.

[0023] Furthermore, the occlusal surface includes the first bicuspid occlusal surface 4, the second bicuspid occlusal surface 5, the first molar occlusal surface 6, the second molar occlusal surface 7 and the third molar occlusal surface (not shown in the figure) in the teeth of the upper and lower dental arches.

[0024] Furthermore, the braces 1 are made of models of upper and lower dental arches printed using 3D technology.

[0025] Furthermore, the steel wire body 3 has a steel wire diameter of 0.3-0.8 mm.

[0026] Furthermore, the support body 2 is made of metal material into an Ω shape, and two ends of the Ω shape are symmetrically embedded in the two side walls of the brace 1 on the lingual side.

[0027] Furthermore, the steel wire body 3 is made of elastic 316 stainless steel wire.

[0028] Furthermore, the dental brace 1 is made of heat-vulcanized silicone rubber.

[0029] It should be noted that the corrector of the present invention expands the upper and lower dental arches of children aged 12 years old at the same time, with the corrector wearing for 6 to 8 hours a day as the standard. The data obtained from actual application show that: the corrector with a wire diameter of Φ0.3mm expands the dental arch by not less than 1mm per week; the corrector with a wire diameter of Φ0.45mm expands the dental arch by not less than 1.5mm per week; the corrector with a wire diameter of Φ0.6mm expands the dental arch by not less than 2mm per week; the correction effects vary among people of different age groups due to the different degrees of dental arch development, and the effect of expanding the dental arch every week is compared with the standard value, and the error range is within ±0.5mm.

[0030] The present invention is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, which are within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the appended claims.

Claims

1. A removable orthodontic appliance for expanding dental arches, characterized in that: The corrector comprises: a brace, an anti-brace and a wire body, wherein the brace comprises an upper brace for covering the teeth of the maxillary dental arch and a lower brace for covering the teeth of the mandibular dental arch, the upper brace and the lower brace are fixed into one by bonding the occlusal surface, the occlusal surface comprises the occlusal surface of the first bicuspid, the occlusal surface of the second bicuspid, the occlusal surface of the first molar, the occlusal surface of the second molar and the occlusal surface of the third molar in the teeth of the upper and lower mandibular dental arches, the two ends of the anti-brace are symmetrically embedded in the two side walls of the brace on the lingual side, the wire body is horizontally symmetrically embedded in the two side walls of the brace on the buccal side, the wire body is arc-shaped on the horizontal plane and is consistent with the shape of the maxillary dental arch.

2. The corrector according to claim 1, characterized in that: The vertical surface of the steel wire body is distributed in an arc along the horizontal surface in a sinusoidal waveform.

3. The corrector according to claim 2, characterized in that: The steel wire body is made of 316L elastic steel wire.

4. The corrector according to claim 3, characterized in that: The steel wire diameter of the steel wire body is 0.3-0.8 mm.

5. The corrector according to claim 1, characterized in that: The dental cap is made of heat-vulcanized silicone rubber.

6. The corrector according to claim 1, characterized in that: The support body is made of metal material and is in an Ω shape.

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