Improved forward mandibular repositioning device

Abstract

The utility model discloses a kind of improved mandibular protrusion appliance, it includes the upper dental brace (1) of sleeve fixed on maxillary plate and the lower dental brace (2) of sleeve fixed on mandibular plate, the front side welding of the upper dental brace (1) has upper traction hook (3), the rear side welding of the lower dental brace (2) has lower traction hook (4), the upper traction hook (3) and lower traction hook (4) are mutually traction by elastic rubber band (5) between, the middle part of the upper dental brace (1) is provided with an arch expander (6), the bottom of the upper dental brace (1) is provided with upper inclined plane (7).The utility model is easy to adjust and grind, can be adjusted according to replacement tooth condition;Arch expander is arranged in the upper dental brace, and anterior teeth are retracted;Mandible can be protruded by the traction of mouth outer bow and head cap, realize counterclockwise rotation jaw plane, carry out good vertical control, improve face shape better.

Description

Technical Field

[0001] This utility model relates to the technical field of oral orthodontics, specifically to a modified mandibular protrusion appliance. Background Technology

[0002] Herbst appliances are fixed orthodontic devices that are bonded to the teeth in the posterior region via cast bands and are not removable. By using levers to protrude the mandible into a new position, the masticatory muscles are required to use a new occlusal force balance system when the mandible is passively in this protruding position. This promotes rapid soft tissue remodeling, thereby creating a new balance in the stomatognathic system. Fixed spiral expanders for the maxilla can correct maxillary narrowing, but current technology has the following drawbacks:

[0003] 1. Fixed braces make oral hygiene difficult;

[0004] 2. Making detailed adjustments to the orthodontic appliance is quite difficult;

[0005] 3. There is no retraction appliance in the anterior region, which has limited effectiveness for patients with protruding teeth;

[0006] 4. The jaw plane remains unchanged, resulting in limited improvement in facial shape. Summary of the Invention

[0007] The purpose of this invention is to provide an improved mandibular protrusion orthodontic appliance that can effectively solve the problems existing in the background art.

[0008] To address the problems existing in the background art, it includes an upper dental brace 1 fixed to the maxillary plate and a lower dental brace 2 fixed to the mandibular plate. An upper traction hook 3 is welded to the front side of the upper dental brace 1, and a lower traction hook 4 is welded to the back side of the lower dental brace 2. The upper traction hook 3 and the lower traction hook 4 are mutually tractioned by an elastic band 5. An arch expander 6 is provided in the middle of the upper dental brace 1. An upper inclined surface 7 is provided at the bottom of the upper dental brace 1. A lower inclined surface 8 that cooperates with the upper inclined surface 7 is provided at the top of the lower dental brace 2. Sleeves 9 are welded to both sides of the upper dental brace 1, and an extraoral arch 10 is fitted between the two sleeves 9.

[0009] The external oral arch 10 has a U-shaped structure. Two traction support strips 11 that can extend out of the oral cavity are welded to the top of the external oral arch 10. The ends of the traction support strips 11 are provided with hooks 15 that connect with the head cap.

[0010] The headgear includes a cap plate 12 located on the top of the patient's head. Fixing straps 13 are sewn on both sides of the cap plate 12. Positioning straps 14 are sewn at the ends of the fixing straps 13. The positioning straps 14 have several holes 16 that can be engaged with hooks 15.

[0011] Due to the adoption of the above technical solutions, this utility model has the following beneficial effects:

[0012] 1. The upper and lower braces are removable, making it easy to clean teeth;

[0013] 2. It is easy to adjust and can be adjusted according to the replacement of teeth;

[0014] 3. An expander is installed inside the upper braces to retract the front teeth;

[0015] 4. With the help of the external oral arch and headgear, the mandible can be protruded forward, allowing for counterclockwise rotation of the jaw plane, providing good vertical control and better improving facial shape;

[0016] 5. The upper and lower traction hooks are connected by elastic bands to keep the mandible in a forward-protruding position, preventing it from retracting due to muscle relaxation during sleep. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model.

[0020] See Figure 1This specific embodiment is implemented using the following technical solution: it includes an upper dental brace 1 fixed to the maxillary plate and a lower dental brace 2 fixed to the mandibular plate. An upper traction hook 3 is welded to the front of the upper dental brace 1, and a lower traction hook 4 is welded to the back of the lower dental brace 2. The upper traction hook 3 and the lower traction hook 4 are mutually tractioned by an elastic band 5. Through the traction of the elastic band 5, the mandible is continuously forward, and it can maintain an anterior position during sleep. An arch expander 6 is provided in the middle of the upper dental brace 1, and an upper inclined surface 7 is provided at the bottom of the upper dental brace 1. A lower inclined surface 8, which cooperates with the upper inclined surface 7, is provided at the top of the lower dental brace 2. Through the guiding force of the upper inclined surface 7 and the lower inclined surface 8 during occlusion, the mandible moves forward, opening the bite, and the perioral muscles are activated by traction. When the mandible is passively in a protruding position, the masticatory muscle system needs to use a new occlusal force balance system, which can promote rapid soft tissue remodeling, thereby forming a new balance in the stomatognathic system. Under the guidance of the upper inclined plane 7 and the lower inclined plane 8, the mandible adapts to a pre-set protruding occlusal state, thereby correcting the misalignment between the upper and lower jaws. The upper dental crown 1 has sleeves 9 welded to both sides, and an extraoral arch 10 is fitted between the two sleeves 9.

[0021] The external oral arch 10 has a U-shaped structure. Two traction support strips 11 that can extend out of the oral cavity are welded to the top of the external oral arch 10. The ends of the traction support strips 11 are provided with hooks 15 that connect with the head cap. The external oral arch 10 and the head cap work together to apply an external force to achieve the effect of a counterclockwise rotation of the mandible.

[0022] The headgear includes a cap plate 12 located on the top of the patient's head. Fixing straps 13 are sewn on both sides of the cap plate 12. Positioning straps 14 are sewn at the ends of the fixing straps 13. The positioning straps 14 have several holes 16 that can be engaged with hooks 15.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A modified forward mandibular advancement appliance comprising an upper dental shell (1) secured to an upper plate and a lower dental shell (2) secured to a lower plate, characterised in that The upper dental brace (1) is welded with an upper traction hook (3) on the front side, and the lower dental brace (2) is welded with a lower traction hook (4) on the rear side. The upper traction hook (3) and the lower traction hook (4) are pulled together by an elastic band (5). An arch expander (6) is provided in the middle of the upper dental brace (1). An upper inclined surface (7) is provided at the bottom of the upper dental brace (1). A lower inclined surface (8) that cooperates with the upper inclined surface (7) is provided at the top of the lower dental brace (2). Sleeves (9) are welded to both sides of the upper dental brace (1). An extraoral arch (10) is fitted between the two sleeves (9).

2. The modified mandibular advancement device of claim 1, wherein The external bow (10) is U-shaped. Two traction support strips (11) that can extend out of the oral cavity are welded to the top of the external bow (10). The ends of the traction support strips (11) are provided with hooks (15) that connect with the headgear.

3. The modified mandibular advancement device of claim 2, wherein The headgear includes a cap piece (12) located on the top of the patient's head. Fixing straps (13) are sewn on both sides of the cap piece (12). A positioning strap (14) is sewn at the end of the fixing strap (13). The positioning strap (14) has several holes (16) that can be engaged with hooks (15).

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