Tooth correction device with expansion function

Abstract

A tooth correction device with an arch expanding function is provided with a base plate, a spiral arch expanding device, a hyperbolic reed used for generating acting force on incisors, a retention device fixed to molars and a tongue bar which abuts against a tongue so as to prevent the tongue from stretching forwards, and the hyperbolic reed, the retention device and the tongue bar are all fixedly assembled on the base plate. The base plate is provided with a left base plate and a right base plate, and the left base plate and the right base plate are fixed to the two ends of the spiral arch expanding device respectively. According to the tooth correction device, the left base plate and the right base plate can be simply separated through the spiral arch expanding device, so that a user can adjust and expand the arch by himself / herself. In the whole oral cavity of the tooth correction device with the arch expansion function, the hyperbolic reed acts on incisors through the retention device, an area abutting against the tongue is formed through the tongue bar, the tongue is prevented from stretching forwards accidentally, bad habits such as tongue stretching, tooth licking, finger sucking and primary tongue vomiting are avoided, and the tooth correction device has the advantages of being simple in structure and convenient to use. Therefore, the orthodontic effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of maxillary orthodontic devices, and in particular to a dental orthodontic device with an arch expansion function. Background Technology

[0002] Traditional maxillary expansion methods often use teeth or teeth plus bone as anchorage, achieving significant results in patients during their growth and development period (13-15 years old and younger). However, as patients age, traditional expansion methods for adults often involve tilting the maxillary teeth, leading to a high relapse rate and increased damage to anchorage teeth, such as buccal alveolar bone cortical fractures, root resorption, and periodontal ligament damage. The most commonly used expansion appliance in orthodontic clinics is the four-eye expansion spring, named for its two eye-shaped force-applying loops at the front and back, such as the four-eye spring with elastic push-stop expansion appliance disclosed in Chinese patent CN108113767A. The four-eye expansion spring is relatively complex to manufacture, and due to the two eye-shaped loops at the front, it is relatively large in size, resulting in a strong foreign body sensation when placed in the patient's mouth. Furthermore, the force application of the four-eye expansion spring is done by the dentist, requiring frequent follow-up visits.

[0003] Therefore, it is essential to provide a dental orthodontic device with an arch expansion function to address the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a dental orthodontic device with an arch-expanding function. This device can prevent the bad habit of protruding the tongue, thereby improving the correction effect of underbite.

[0005] The above-mentioned objectives of this utility model are achieved through the following technical measures:

[0006] A dental orthodontic device with an arch expansion function is provided, comprising a base, a spiral arch expander, a hyperboloid tongue spring for exerting force on the incisors, a retention device fixed to the molars, and a tongue rail that abuts against the tongue to prevent the tongue from protruding forward. The hyperboloid tongue spring, the retention device, and the tongue rail are all fixedly assembled to the base.

[0007] The base is provided with a left base and a right base, which are respectively fixed to both ends of the spiral expander.

[0008] Preferably, the above-mentioned spiral expander is provided with a bidirectional lead screw, a guide rod and two support seats. The two ends of the bidirectional lead screw are respectively threaded to a support seat, and the two ends of the guide rod are respectively movably mounted to a support seat. One support seat is fixedly wrapped around the left base and the other support seat is fixedly wrapped around the right base.

[0009] Preferably, a rotating sleeve is integrally connected to the middle of the bidirectional lead screw, the rotating sleeve is located between the two support seats, and the rotating sleeve is provided with a plurality of operating holes for driving the bidirectional lead screw to rotate as a whole.

[0010] Preferably, the bidirectional lead screw is further provided with multiple sets of blocking mechanisms to prevent food residue from entering the operating hole. The blocking mechanisms are located inside the operating hole and are telescopic.

[0011] Preferably, the number of the aforementioned blocking mechanisms corresponds one-to-one with the number of the operating holes.

[0012] When the bidirectional lead screw is in a non-operating state, the outer surface of the blocking mechanism is flush with the outer surface of the rotating sleeve.

[0013] When the bidirectional lead screw is in operation, the outer surface of the blocking mechanism is embedded inside the operating hole.

[0014] Preferably, the above-mentioned blocking mechanism is provided with a baffle and a return spring. The baffle and the return spring are both located inside the operating hole, and one end of the return spring is fixed to the bottom of the corresponding operating hole, while the other end of the return spring is fixedly connected to the baffle.

[0015] Preferably, the aforementioned barrier mechanism is further provided with a retaining ring for preventing the baffle from dislodging and food residue from entering, the retaining ring being fixedly fitted to the edge of the operating hole.

[0016] Preferably, the baffle is provided with a plate body and a boss, the boss being integrally connected to the surface of the plate body, and the boss being movably abutting against the center of the retaining ring.

[0017] The orthodontic device with arch expansion function of this utility model is further provided with two anti-rebound pressure springs. Each pressure spring is located inside the corresponding support seat, and one pressure spring abuts against one end of the bidirectional lead screw.

[0018] The orthodontic device with arch expansion function of this utility model is provided with two automatically retractable corrugated tubes. Each corrugated tube is respectively fitted onto both ends of the bidirectional screw, and one end of the corrugated tube is abutted by the rotating sleeve, while the other end of the corrugated tube abuts against the support seat.

[0019] Preferably, multiple tongue rails are provided, and each tongue rail is located on the lingual side of the incisor and behind the hyperboloid tongue spring.

[0020] Each of the lingual rails is formed by bending a steel wire, with the middle of the steel wire bent into a raised structure. The two ends of the steel wire are respectively fixedly embedded inside the base. The raised structure is located outside the base, and the plane of the raised structure is perpendicular to the lingual side closest to the incisor.

[0021] Preferably, the above-mentioned spiral bow expander is provided in three parts, which are respectively defined as the first spiral bow expander, the second spiral bow expander and the third spiral bow expander.

[0022] Preferably, the left base is provided with an upper left sub-base and a lower left sub-base, the upper left sub-base and the lower left sub-base are independent of each other, and the upper left sub-base and the lower left sub-base are respectively fixed to both ends of the first spiral expander.

[0023] Preferably, the right base is provided with an upper right sub-base and a lower right sub-base, the upper right sub-base and the lower right sub-base are independent of each other, and the upper right sub-base and the lower right sub-base are respectively fixed to both ends of the second spiral expander.

[0024] Preferably, the lower right sub-support and the lower left sub-support are respectively fixed to both ends of the third spiral expander.

[0025] This invention discloses a dental orthodontic device with an arch-expanding function, comprising a base, a spiral arch expander, a double-curved tongue spring for applying force to the incisors, a retention device fixed to the molars, and a tongue rail that forms an abutment area against the tongue to prevent it from protruding forward. The double-curved tongue spring, the retention device, and the tongue rail are all fixedly assembled to the base. The base consists of a left base and a right base, which are respectively fixed to both ends of the spiral arch expander. This dental orthodontic device with an arch-expanding function allows the left and right bases to be easily separated by the spiral arch expander, enabling the user to adjust the expansion themselves. Furthermore, this invention integrates the dental orthodontic device with an arch-expanding function into the oral cavity through the retention device. The double-curved tongue spring applies force to the incisors, and the tongue rail forms an abutment area against the tongue, preventing unintentional forward protrusion of the tongue. This avoids bad habits such as tongue thrusting, teeth licking, thumb sucking, and primary tongue protrusion, thereby improving the orthodontic effect. Attached Figure Description

[0026] The present invention will be further described with reference to the accompanying drawings, but the content of the drawings does not constitute any limitation on the present invention.

[0027] Figure 1 This is a schematic diagram of the orthodontic device with arch expansion function in Example 1.

[0028] Figure 2 This is a schematic diagram of the spiral bow expander.

[0029] Figure 3This is a cross-sectional view of the spiral expander.

[0030] Figure 4 for Figure 3 A magnified view of the "z" region.

[0031] Figure 5 This is a cross-sectional view of the tongue rail.

[0032] Figure 6 This is a partial cross-sectional view of the orthodontic device with arch expansion function in Example 2.

[0033] exist Figures 1 to 6 This includes:

[0034] Base plate 100, left base plate 100, upper left sub-base plate 111, lower left sub-base plate 112, right base plate 100, upper right sub-base plate 121, lower right sub-base plate 122.

[0035] Hyperbolic reed 200, retaining device 300

[0036] Tongue rail 400, raised structure 410

[0037] Spiral expander 500

[0038] 510 double-acting lead screw

[0039] Guide rod 520, support base 530

[0040] Rotating sleeve 540, operating hole 541

[0041] Barrier mechanism 550

[0042] baffle 551, plate 5511, boss 5512

[0043] Return spring 552, retaining ring 553

[0044] Compression spring 560, bellows 570,

[0045] Tongue 600, incisors 700. Detailed Implementation

[0046] The technical solution of this utility model will be further explained with reference to the following embodiments.

[0047] Example 1

[0048] A dental appliance with arch expansion function, such as Figure 1As shown, the device includes a base 100, a spiral expander 500, a hyperboloidal tongue spring 200 for exerting force on the incisors 700, a retention device 300 fixed to the molars, and a tongue rail 400 that abuts against the tongue 600 to prevent the tongue 600 from protruding forward. The hyperboloidal tongue spring 200, retention device 300, and tongue rail 400 are all fixedly assembled to the base 100. The base 100 has a left base 100 and a right base 100, which are respectively fixed to both ends of the spiral expander 500.

[0049] like Figure 2 The spiral expander 500 is provided with a two-way lead screw 510, a guide rod 520 and two support seats 530. The two ends of the two-way lead screw 510 are respectively threaded to a support seat 530. The two ends of the guide rod 520 are respectively movably mounted to a support seat 530. One support seat 530 is fixedly wrapped around the left base 100 and the other support seat 530 is fixedly wrapped around the right base 100.

[0050] like Figure 3 A rotating sleeve 540 is integrally connected to the middle of the bidirectional lead screw 510. The rotating sleeve 540 is located between two support seats 530 and has multiple operating holes 541 for driving the bidirectional lead screw 510 to rotate as a whole. The bidirectional lead screw 510 also has multiple sets of blocking mechanisms 550 to prevent food residue from entering the operating holes 541. The blocking mechanisms 550 are located inside the operating holes 541 and are telescopic. The number of blocking mechanisms 550 corresponds one-to-one with the number of operating holes 541. The blocking mechanism 550 also has a retaining ring 553 to prevent the baffle 551 from dislodging and food residue from entering. The retaining ring 553 is fixedly mounted on the edge of the operating hole 541. The baffle 551 has a plate body 5511 and a boss 5512. The boss 5512 is integrally connected to the surface of the plate body 5511 and can movably abut against the center of the retaining ring 553.

[0051] When the bidirectional lead screw 510 is not in operation, the outer surface of the blocking mechanism 550 is flush with the outer surface of the rotating sleeve 540, thereby preventing food residue from entering the interior of the operating part and avoiding cleaning difficulties.

[0052] When the bidirectional lead screw 510 is in operation, the outer surface of the blocking mechanism 550 is embedded into the inside of the operating hole 541 by inserting the bow expander key. At the same time, the bow expander key is inserted into the inside of the operating hole 541, and then a force point is formed, which enters the rotation of the bidirectional lead screw 510, separates the two support seats 530 and the left base 100 and right base 100, and then expands the bow.

[0053] like Figure 4The blocking mechanism 550 is equipped with a baffle 551 and a return spring 552. Both the baffle 551 and the return spring 552 are located inside the operating hole 541, and one end of the return spring 552 is fixed to the bottom of the corresponding operating hole 541, while the other end of the return spring 552 is fixedly connected to the baffle 551. When not in operation, the return spring 552 is in a free state; when the bow expander key is inserted, the return spring 552 is in a compressed state.

[0054] After prolonged use, the bidirectional lead screw 510 may rotate, causing the elasticity of the expander to decrease and resulting in loosening. Therefore, the orthodontic device with expander function of this invention, the spiral expander 500, is also equipped with two anti-rebound pressure springs 560. Each pressure spring 560 is located inside a corresponding support seat 530, and one pressure spring 560 abuts against one end of the bidirectional lead screw 510.

[0055] It should be noted that before using the orthodontic device with arch expansion function of this utility model, the two pressure springs 560 are compressed inside the support base 530 by means of the outside. When the bidirectional lead screw 510 rotates to expand the arch, the pressure springs 560 partially extend and exert a squeezing force on the bidirectional lead screw 510, so as to avoid the orthodontic device with arch expansion function from loosening the support of the teeth, and can effectively prevent the rebound.

[0056] The spiral expander 500 of this utility model, a dental orthodontic device with an arch expansion function, is also provided with two automatically retractable corrugated tubes 570. Each corrugated tube 570 is respectively fitted onto both ends of the bidirectional lead screw 510, and one end of the corrugated tube 570 is rotated and abutted by the sleeve 540, while the other end of the corrugated tube 570 abuts against the support seat 530.

[0057] It should be noted that by wrapping the bellows 570 around the outside of the bidirectional lead screw 510, food debris from the oral cavity can be prevented from entering the groove of the bidirectional lead screw 510. The bellows 570 is a tubular elastic sensitive element formed by connecting foldable corrugated sheets along the folding and stretching direction. The bellows 570 is a tube that can be compressed by external force and automatically extends after the external force is removed.

[0058] like Figure 5 The tongue rail is provided with multiple tongue rails, and each tongue rail 400 is located on the lingual side of the incisor 700 and behind the hyperboloid tongue spring 200. Each tongue rail 400 is made of a steel wire bent into a protruding structure 410 in the middle. The two ends of the steel wire are fixedly embedded in the interior of the base 100. The protruding structure 410 is located on the exterior of the base 100. The plane of the protruding structure 410 is perpendicular to the lingual side of the incisor 700 closest to it.

[0059] It should be noted that the tongue rail 400 of this invention forms an area of ​​contact with the tongue 600 inside the oral cavity, preventing the tongue 600 from unintentionally protruding forward, thereby avoiding bad habits such as tongue protrusion, teeth licking, finger sucking, and primary tongue thrusting. When the user needs to speak or protrude the tongue 600, they only need to actively move the tongue 600 across the tongue rail 400 for normal movement. "Unintentionally protruding forward" in this context refers to the direction in which the tongue 600 extends from the incisors 700.

[0060] The function of the raised structure 410 of this utility model, which is perpendicular to the lingual side of the tooth closest to the incisor 700, is to increase the strength of the lingual rail 400. Since it is in contact with the tongue 600 for a long time and the tongue 600 has a large force, the function of the raised structure 410 is to improve the stability of the lingual rail 400 on the base 100 and increase the service life of the orthodontic appliance.

[0061] This orthodontic appliance with an arch-expanding function can easily separate the left and right baseplates 100 using a spiral arch expander 500, allowing the user to adjust the arch expansion themselves. Furthermore, the appliance is integrated into the oral cavity via a retention device 300. A double-curved tongue spring 200 acts on the incisors 700, and a tongue rail 400 forms a contact area with the tongue 600, preventing the tongue from inadvertently protruding forward. This avoids bad habits such as tongue thrusting, teeth licking, thumb sucking, and primary tongue protrusion, thereby improving the orthodontic effect.

[0062] Example 2

[0063] A dental orthodontic appliance with an arch expansion function, which is otherwise identical to that of Example 1, also has the following features, such as... Figure 6 As shown, there are three spiral bow expanders 500, which are defined as the first spiral bow expander 500, the second spiral bow expander 500 and the third spiral bow expander 500 respectively.

[0064] The left base 110 is provided with an upper left sub-base 111 and a lower left sub-base 112. The upper left sub-base 111 and the lower left sub-base 112 are independent of each other, and the upper left sub-base 111 and the lower left sub-base 112 are respectively fixed to both ends of the first spiral bow expander 500.

[0065] The right base 120 is provided with an upper right sub-base 121 and a lower right sub-base 122. The upper right sub-base 121 and the lower right sub-base 122 are independent of each other, and the upper right sub-base 121 and the lower right sub-base 122 are respectively fixed to both ends of the second spiral bow expander 500.

[0066] The lower right bracket 122 and the lower left bracket 112 are respectively fixed to both ends of the third spiral expander 500.

[0067] Compared with Example 1, the orthodontic device with arch expansion function in this example can not only expand the arch to the left and right, but also expand the arch from front to back.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A dental orthodontic appliance with an arch expansion function, characterized in that: The device is equipped with a base, a spiral expander, a hyperboloid tongue spring for applying force to the incisors, a retention device fixed to the molars, and a tongue rail that abuts against the tongue to prevent the tongue from protruding forward. The hyperboloid tongue spring, the retention device, and the tongue rail are all fixedly assembled to the base. The base is provided with a left base and a right base, and the left base and the right base are respectively fixed to both ends of the spiral expander; The spiral expander is provided with a two-way lead screw, a guide rod and two support seats. The two ends of the two-way lead screw are respectively threaded to a support seat, and the two ends of the guide rod are respectively movably mounted to a support seat. One support seat is fixedly wrapped around the left base and the other support seat is fixedly wrapped around the right base. A rotating sleeve is integrally connected to the middle of the bidirectional lead screw. The rotating sleeve is located between the two support seats. The rotating sleeve is provided with a plurality of operating holes for driving the bidirectional lead screw to rotate as a whole. The bidirectional lead screw is also equipped with multiple sets of blocking mechanisms to prevent food residue from entering the operating hole. The blocking mechanisms are located inside the operating hole and are telescopic. When the bidirectional lead screw is in a non-operating state, the outer surface of the blocking mechanism is flush with the outer surface of the rotating sleeve; When the bidirectional lead screw is in operation, the outer surface of the blocking mechanism is embedded inside the operating hole.

2. The orthodontic appliance with arch expansion function according to claim 1, characterized in that: The number of the blocking mechanisms corresponds one-to-one with the number of the operating holes.

3. The orthodontic device with arch expansion function according to claim 2, characterized in that: The blocking mechanism is provided with a baffle and a return spring. Both the baffle and the return spring are located inside the operating hole, and one end of the return spring is fixed to the bottom of the corresponding operating hole, while the other end of the return spring is fixedly connected to the baffle.

4. The orthodontic device with arch expansion function according to claim 3, characterized in that: The barrier mechanism is also provided with a retaining ring to prevent the baffle from dislodging and food residue from entering, and the retaining ring is fixedly fitted to the edge of the operating hole.

5. The orthodontic device with arch expansion function according to claim 4, characterized in that: The baffle is provided with a plate body and a boss. The boss is integrally connected to the surface of the plate body and can movably abut against the center of the retaining ring.

6. The orthodontic device with arch expansion function according to claim 5, characterized in that: The spiral expander is also equipped with two pressure springs to prevent rebound. Each pressure spring is located inside a corresponding support seat, and one pressure spring abuts against one end of the bidirectional lead screw.

7. The orthodontic device with arch expansion function according to claim 6, characterized in that: The spiral expander is also equipped with two automatically retractable corrugated tubes, each corrugated tube being fitted onto one end of the bidirectional lead screw, with one end of the corrugated tube abutting against the rotating sleeve and the other end of the corrugated tube abutting against the support base.

8. The orthodontic device with arch expansion function according to claim 7, characterized in that: The tongue rail is provided in multiple ways, and each tongue rail is located on the lingual side of the incisor and behind the hyperboloid tongue spring; Each of the lingual rails is formed by bending a steel wire, with the middle of the steel wire bent into a raised structure. The two ends of the steel wire are respectively fixedly embedded inside the base. The raised structure is located outside the base, and the plane of the raised structure is perpendicular to the lingual side closest to the incisor.

9. The orthodontic appliance with arch expansion function according to any one of claims 1 to 8, characterized in that: The spiral bow expander is provided in three parts, which are defined as the first spiral bow expander, the second spiral bow expander and the third spiral bow expander respectively; The left base is provided with an upper left sub-base and a lower left sub-base. The upper left sub-base and the lower left sub-base are independent of each other, and the upper left sub-base and the lower left sub-base are respectively fixed to both ends of the first spiral bow expander. The right base is provided with an upper right sub-base and a lower right sub-base. The upper right sub-base and the lower right sub-base are independent of each other, and the upper right sub-base and the lower right sub-base are respectively fixed to both ends of the second spiral expander. The lower right sub-support and the lower left sub-support are respectively fixed to both ends of the third spiral expander.

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