Fixed maxillary molar backward pushing device

Abstract

The utility model discloses a fixed maxillary molar backward pushing device, which comprises a first belt ring, a palate surface belt ring, a second belt ring and an elastic force arm, the first belt ring, the palate surface belt ring, the second belt ring and the elastic force arm are arranged in bilateral symmetry and have the same structure, the palate surface belt ring is arranged on the adjacent surface of the first belt ring, and the palate surface belt ring is connected with the second belt ring through a connecting rod; the first bands on the left side and the right side are connected through a lower supporting rod, the palate surface bands on the left side and the right side are connected through an upper supporting rod, and the upper supporting rod and the lower supporting rod are hinged and fixed; a base support is arranged in the middle of the upper supporting rod, a connecting pipe is arranged in the middle of the lower supporting rod, and a left elastic force arm and a right elastic force arm are installed on the lower supporting rod in the connecting pipe. The device is of an integrated structure, has a common in-position path, is convenient to integrally install, is good in retention effect, and solves the problem that anchorage is slightly insufficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to oral cavity medical instrument technical field, concretely relates to a fixed maxillary tooth pushing back device. BACKGROUND

[0002] In the orthodontic clinic, the case of malocclusion with tooth crowding is more common, and the common solution is to push the molar back to move distally by the correction device, so as to obtain a certain space to solve the condition of too crowded teeth, and also can effectively adjust the occlusion problem of teeth.

[0003] The existing correction device is divided into three categories: 1, invasive surgery implanting metal micro-screw implantation support nail into bone to push the molar back; 2, non-invasive traditional tooth pushing back technology device; 3, modern invisible transparent tooth set dragging molar back technology. Among them, the micro-screw implantation body invasive surgery implanting metal implantation support nail into bone is good, but it needs anesthesia and is invasive, so it is not accepted by most people; modern invisible transparent tooth set pushing molar back technology is very popular, but it is expensive, the expression rate is low, and the gap is limited; non-invasive traditional tooth pushing back technology is one of the methods accepted by most patients, and its effectiveness and practicability in clinic are beyond doubt, so the non-invasive traditional tooth pushing back technology is the current clinical technology mainstream. The non-invasive traditional tooth pushing back technology device includes palatal fixed appliance and buccal appliance, and the device is usually composed of inner arch or outer arch, which is very suitable for patients with mild dental arch crowding, but it has the problems of poor fixation, excessive reaction force on the front teeth due to excessive correction force (insufficient support), thick and poor elastic force wire, and inconvenient installation due to non-integrated device without common positioning channel.

[0004] Therefore, the existing structure and defects are improved, and a fixed maxillary tooth pushing back device is provided. UTILITY MODEL CONTENT

[0005] To solve the above problems, the utility model aims at providing a fixed maxillary tooth pushing back device.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme: a fixed maxillary tooth pushing back device, including left and right symmetrical first rings, palatal rings, second rings and elastic force arms, the first ring is provided with a palatal ring on the adjacent surface, and the palatal ring is connected with the second ring through a connecting rod; the left and right first rings are connected through a lower support rod, the left and right palatal rings are connected through an upper support rod, and the upper support rod and the lower support rod are hinged and fixed; the middle part of the upper support rod is provided with a base, the middle part of the lower support rod is provided with a connecting pipe, and the lower support rod in the connecting pipe is provided with left and right elastic force arms.

[0007] Further, the first band ring is in a ring structure, and the two first band rings are respectively arranged at the periphery of the two fourth molars, and a card is arranged at the middle part of the first band ring, and the card is clamped in the alveolus of the fourth molar, so that the first band ring is more stably arranged with the teeth.

[0008] Further, the palatal band ring is in a semicircular structure, and the two palatal band rings are respectively arranged at the palatal surface of the two fifth molars.

[0009] Further, the second band ring is in a ring structure, and the two second band rings are respectively arranged at the periphery of the two sixth molars, and the lingual side of the two second band rings is respectively provided with a guide pipe, and the end of the left and right elastic force arms is inserted into the guide pipe.

[0010] Further, the elastic force arm is provided with a U-shaped curve, which can further increase the elasticity of the elastic force arm and also play a stress interrupting role.

[0011] Compared with the prior art, the advantages of the utility model lie in that:

[0012] 1. The first band ring, the palatal band ring and the second band ring are arranged in an integrated structure, have a common positioning channel, and are convenient for overall installation of the device and have good retention effect.

[0013] 2. The elastic force arm is arranged, and the light and soft characteristics and endurance of the elastic force arm are utilized, so that the reaction thrust of the front teeth is greatly reduced.

[0014] 3. The palatal band ring is arranged, the retention body of the two fifth molars is increased, and compared with the previous palatal fixing device, the problem of insufficient support is solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the embodiment one of the utility model;

[0016] Figure 2 It is an installation schematic view of the embodiment one;

[0017] Figure 3 It is a structural schematic view of the embodiment two of the utility model;

[0018] Figure 4 It is an installation schematic view of the embodiment two.

[0019] In the drawing: 1, base, 2, first band ring, 3, palatal band ring, 4, connecting rod, 5, second band ring, 6, guide pipe, 7, connecting pipe, 8, elastic force arm, 9, lower support rod, 10, upper support rod, 11, card, 12, U-shaped curve, 13, tooth. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be further described in detail below with reference to the drawings. Embodiment

[0021] Please refer to Figure 1 and 2 , the fixed maxillary tooth pushing device, comprising left and right symmetrical first rings 2, palatal rings 3, second rings 5 and elastic force arms 8, the first ring 2 is annular structure, the two sides of the first ring 2 are respectively installed on the periphery of the fourth molar, the adjacent surface of the first ring 2 is provided with a semicircular structure of the palatal ring 3, the two sides of the palatal ring 3 are respectively installed on the palatal surface of the fifth molar, and the first ring 2 and the palatal ring 3 are connected and cast as an integral structure, without separating the interdental space by the doctor, the fourth molar is the best retention body of the device; the design of the palatal ring 3 increases the number of retention bodies, which can resist the reaction force of the molar distal movement, and also does not need to separate the interdental space by the doctor, and can be fixed by bonding, and the fifth molar is a general retention body.

[0022] The palatal ring 3 is connected with the second ring 5 through the connecting rod 4, the second ring 5 is annular structure, the two sides of the second ring 5 are respectively installed on the periphery of the sixth molar, the palatal surface of the second ring 5 is welded with the catheter 6, the left and right sides of the first ring 2 are connected through the lower support rod 9, the left and right sides of the palatal ring 3 are connected through the upper support rod 10, and the upper support rod 10 is hingedly fixed with the lower support rod 9; the middle part of the upper support rod 10 is provided with the base 1 made of resin material, the middle part of the lower support rod 9 is provided with the connecting pipe 7 made of resin material, and the lower support rod 9 in the connecting pipe 7 is installed with the left and right elastic force arms 8, the left and right elastic force arms 8 extend into the catheter 6, and the second ring 5 combined with the palatal catheter 6 is the direct object of the molar distal movement. Embodiment

[0023] Please refer to Figure 3 , 4 , the fixed maxillary tooth pushing device, comprising left and right symmetrical first rings 2, palatal rings 3, second rings 5 and elastic force arms 8, the first ring 2 is annular structure, the two sides of the first ring 2 are respectively installed on the periphery of the fourth molar, the adjacent surface of the first ring 2 is provided with a semicircular structure of the palatal ring 3, the two sides of the palatal ring 3 are respectively installed on the palatal surface of the fifth molar, and the first ring 2 and the palatal ring 3 are connected and cast as an integral structure, without separating the interdental space by the doctor, the fourth molar is the best retention body of the device; the design of the palatal ring 3 increases the number of retention bodies, which can resist the reaction force of the molar distal movement, and also does not need to separate the interdental space by the doctor, and can be fixed by bonding, and the fifth molar is a general retention body.

[0024] The palatal band 3 is connected with the second band 5 through the connecting rod 4, the second band 5 is in the annular structure, the second bands 5 on the two sides are respectively installed on the periphery of the sixth molar on the two sides, the palatal surface of the second band 5 is welded with the catheter 6, the first bands 2 on the left and right sides are connected through the lower support rod 9, the palatal bands 3 on the left and right sides are connected through the upper support rod 10, and the upper support rod 10 is hingedly fixed with the lower support rod 9; the middle part of the upper support rod 10 is provided with the base 1 made of resin, the middle part of the lower support rod 9 is provided with the connecting pipe 7 made of resin, and the lower support rod 9 in the connecting pipe 7 is provided with the left and right elastic force arms 8, the U-shaped curve 12 is arranged on the elastic force arm 8, the U-shaped curve 12 can further increase the elasticity of the elastic force arm 8, and can also play a stress interruption role, and the end parts of the left and right elastic force arms 8 extend into the catheter 6.

[0025] Working principle: when the device is used, the doctor selects the adhesive tooth filling material to respectively adhere and fix the first band 2, the palatal band 3 and the second band 5 on the fourth molar, the fifth molar and the sixth molar in the oral cavity, the resin base 1 is closely attached to the mucosa of the anterior palate, the resin connecting pipe 7 is suspended and separated from the middle part of the palate by 2mm, the end parts of the left and right elastic force arms 8 are respectively installed in the catheter 6 on the palatal surface of the second band 5, at this time, the device is integrally and jointly positioned; the occlusal high point is adjusted, the excess adhesive material is removed, and the inspection is completed, the connecting rod 4 between the palatal band 3 and the second band 5 is drilled and ground by the dental high-speed handpiece, after polishing, the device is installed. The device is integrally fixed to form a support, the elastic force arm 8 is pulled back to the catheter 6 for retention, elastic deformation occurs, and the arc type backward rebound force is continuously generated, so that the tooth 13 moves correspondingly.

[0026] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A fixed maxillary molar pushing device, characterized in that: The invention comprises a first belt ring (2), a palatal belt ring (3), a second belt ring (5), and an elastic force arm (8) which are symmetrically arranged on the left and right and have the same structure. The palatal belt ring (3) is arranged on the adjacent surface of the first belt ring (2), and the palatal belt ring (3) is connected to the second belt ring (5) through a connecting rod (4); the first belt rings (2) on the left and right sides are connected through a lower support rod (9), and the palatal belt rings (3) on the left and right sides are connected through an upper support rod (10), and the upper support rod (10) is hinged and fixed to the lower support rod (9); a base (1) is arranged in the middle of the upper support rod (10), a connecting tube (7) is arranged in the middle of the lower support rod (9), and left and right elastic force arms (8) are installed on the lower support rod (9) in the connecting tube (7).

2. The fixed maxillary molar pushing device according to claim 1, characterized in that: The first belt ring (2) is an annular structure, and a card (11) is provided in the middle of the first belt ring (2).

3. The fixed maxillary molar pushing device according to claim 1 or 2, characterized in that: The palatal band ring (3) is a semicircular structure.

4. The fixed maxillary molar pushing device as claimed in claim 3, characterized in that: The second belt ring (5) is an annular structure, and the lingual side surfaces of the second belt rings (5) on both sides are provided with a catheter (6), and the ends of the left and right elastic force arms (8) extend into the catheter (6).

5. The fixed maxillary molar pushing device according to claim 1, characterized in that: A U-shaped curve (12) is provided on the elastic force arm (8).

Images