阅读说明：本技术 一种前方牵引与磨牙远移结合性口腔正畸装置 (Orthodontic device with forward traction and molar distancing combination ) 是由 霍美玲 于 2019-11-28 设计创作，主要内容包括：本发明涉及一种前方牵引与磨牙远移结合性口腔正畸装置,包括牵引元件和远移元件,所述牵引元件包括固定板、弓丝和托槽,所述固定板包括固定区、延伸臂和牵引钩,所述固定区通过延伸臂连接牵引钩,所述托槽连接于弓丝上,所述弓丝的两端、靠近托槽处均设与牵引钩相适配的牵引件,所述远移元件包括颊管和弹簧,所述弓丝的端头通过弹簧连接颊管,本发明提供的口腔正畸装置,使得正畸治疗时间短,效率高,同时完成前方牵引与磨牙远移,缩短矫治疗程。(The invention relates to an orthodontic device with the combination of front traction and molar distancing, which comprises a traction element and a distancing element, wherein the traction element comprises a fixing plate, an arch wire and a bracket, the fixing plate comprises a fixing area, an extension arm and a traction hook, the fixing area is connected with the traction hook through the extension arm, the bracket is connected to the arch wire, traction pieces matched with the traction hook are respectively arranged at two ends of the arch wire and positions close to the bracket, the distancing element comprises a buccal tube and a spring, and the end head of the arch wire is connected with the buccal tube through the spring.)

1. A combined orthodontic device for front traction and molar distalization is characterized in that: the device comprises a traction element and a remote moving element, wherein the traction element comprises a fixing plate (1), an arch wire (2) and a bracket (3), the fixing plate (1) comprises a fixing area (11), an extension arm (13) and a traction hook (14), the fixing area (11) is connected with the traction hook (14) through the extension arm (13), the bracket (3) is connected onto the arch wire (2), traction pieces (23) matched with the traction hook (14) are respectively arranged at the two ends of the arch wire (2) and close to the bracket (3), the remote moving element comprises a buccal tube (5) and a spring (4), and the end of the arch wire (2) is connected with the buccal tube (5) through the spring (4).

2. The orthodontic appliance of claim 1, wherein the orthodontic appliance comprises a front traction and molar distalization combination comprising: fixed plate (1) is the integrated into one piece structure, fixed area (11) of fixed plate (1) are "V" type structure, through-hole (12) are all established to "V" type three-end department of fixed area (11), fixed area (11) and extension arm (13) are "Y" type structure.

3. The orthodontic appliance of claim 2, wherein the orthodontic appliance comprises a front traction and molar distalization combination comprising: the fixing plate (1) is made of a micro titanium plate, the thickness of the fixing plate (1) is 0.5-1mm, the width of the fixing plate (1) is 2-5mm, and the diameter of the through hole (12) is 1-3 mm.

4. The orthodontic appliance of claim 1, wherein the orthodontic appliance comprises a front traction and molar distalization combination comprising: one end of the spring (4) is fixedly connected with the arch wire (2) through welding or clamping, and the other end of the spring (4) is connected with the outer wall of the buccal tube (5).

5. The orthodontic appliance of claim 1, wherein the orthodontic appliance comprises a front traction and molar distalization combination comprising: the arch wire (2) comprises a front tooth area (21) and a rear tooth area (22), the front tooth area (21) is arranged in the middle of the arch wire (2), and the rear tooth area (22) is arranged at two ends of the front tooth area (21).

6. The orthodontic appliance of claim 1 or 5, wherein the orthodontic appliance comprises a front traction and molar distalization combination comprising: the bracket (3) is arranged in a front tooth area (21) of the arch wire (2), and the traction piece (23) is arranged on the arch wire (2) of a rear tooth area (22) close to the front tooth area (21).

7. The orthodontic appliance of claim 5, wherein the orthodontic appliance comprises a front traction and molar distalization combination comprising: the silk diameter of the anterior tooth area (21) is 0.3-0.6mm, and the silk diameter of the posterior tooth area (22) is 0.6-1 mm.

Technical Field

The invention belongs to the technical field of medical appliances, and particularly relates to an orthodontic device combining front traction and molar distalization.

Background

In cases of severe crowding of the anterior arch, orthodontists often need to remove bicuspids to provide clearance alignment, leveling of dentition, adjustment of occlusal relationships, and the like. In the early stage of alignment and flattening, if the crowded anterior segments are all put into the slots, the anterior labial inclination is caused by insufficient clearance, and the reciprocal movement of the anterior teeth is caused when the tooth extraction gap is closed in the later stage, which is extremely disadvantageous to the periodontal health of the patient. Therefore, early movement of the cuspids far into the interproximal spaces to relieve anterior arch crowding is a reasonable treatment. However, when orthodontists apply corrective forces to achieve their desired tooth movement, there is inevitably an equal and opposite reaction force during each movement, which also moves the tooth in question. In general, anchorage as a reaction force is provided by teeth, and in this case, an orthodontist needs to consider how to move teeth desired to be moved to the maximum extent while minimizing displacement of teeth not desired to be moved, which process is called anchorage control.

In the oral orthodontic clinic, the deficient development of the upper jaw with moderate and severe crowding is a type of commonly encountered mismatching deformity of teenagers in the development peak period, and the conventional treatment method for the patients comprises the steps of adopting an oral device for front traction of the upper jaw to firstly pull the upper jaw forwards, stimulating the sagittal development of the upper jaw and adjusting the sagittal relationship between the upper jaw and the lower jaw; after the front traction is finished, the swinging type rear pushing and grinding device is used for pushing and grinding the teeth backwards, and the aim of providing gaps for solving the congestion of the upper jaw is achieved by moving the first grinding teeth far away.

Because these two kinds of function correction devices can interfere with each other in the operation process clinically, therefore often carry out pendulum-type to push away the molar in advance behind the preceding traction to this kind of patient, but the drawback of operation like this leads to clinical course of treatment relatively long, and the patient is uncomfortable and correct efficiency and also lower, consequently, how can jointly use above-mentioned two kinds of operation, the application of reinforcement simultaneously is mutual noninterference, becomes the problem of industry concern.

Disclosure of Invention

The invention aims to solve the problems in the background technology and provide an orthodontic device combining front traction and molar distalization, which has short orthodontic treatment time and high efficiency.

The purpose of the invention is realized as follows:

the front traction and molar distancing combinability orthodontic device comprises a traction element and a distancing element, wherein the traction element comprises a fixing plate, an arch wire and a bracket, the fixing plate comprises a fixing area, an extension arm and a traction hook, the fixing area is connected with the traction hook through the extension arm, the bracket is connected to the arch wire, traction pieces matched with the traction hook are arranged at two ends of the arch wire and close to the bracket, the distancing element comprises a buccal tube and a spring, and the end head of the arch wire is connected with the buccal tube through the spring.

Further, the fixed plate is the integrated into one piece structure, the fixed area of fixed plate is "V" type structure, the through-hole is all established to "V" type three-terminal department of fixed area, fixed area and extension arm are "Y" type structure.

Furthermore, the fixing plate is made of a micro titanium plate, the thickness of the fixing plate is 0.5-1mm, the width of the fixing plate is 2-5mm, and the diameter of the through hole is 1-3 mm.

Furthermore, one end of the spring is fixedly connected with the arch wire through welding or clamping, the other end of the spring is connected with the outer wall of the buccal tube, and the buccal tube is a single-hole tube.

Furthermore, the arch wire comprises a front tooth area and a rear tooth area, the front tooth area is arranged in the middle of the arch wire, and the rear tooth area is arranged at two ends of the front tooth area.

Furthermore, the bracket is arranged in the front tooth area of the arch wire, and the traction piece is arranged on the arch wire of the rear tooth area close to the front tooth area.

Furthermore, the silk diameter of the anterior tooth area is 0.3-0.6mm, and the silk diameter of the posterior tooth area is 0.6-1 mm.

Furthermore, the fixing plate is connected to the maxilla through the titanium nail and the through hole, wherein the fixing area is arranged at the zygomatic crest, and the traction hook is arranged at the tooth root of the maxillary canine.

Further, the lower edge of the fixing area of the fixing plate is 5-8mm higher than the crest of the alveolar ridge.

Further, the elastic modulus F1 of the fixing plate is 1.98 x 10⁵-2.08×10⁵The Poisson ratio upsilon of the fixed plate is 0.3-0.5, the stress F2 of the fixed plate is 18.6-33.5MPa, and F1. F2 is more than or equal to 3948620 and less than or equal to 6745600.

Furthermore, a turning area is formed at the connecting position of the extension arm and the traction hook of the fixing plate, and the surface tension of the turning area meets the following requirements:

wherein S is the cross-sectional area of the fixed plate, α represents the included angle between the traction angle of the fixed plate and the plane, and α is more than or equal to 0 degree and less than or equal to 70 degrees.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention provides an orthodontic device with the combination of front traction and molar distancing, wherein a fixing plate is connected to a maxilla through a titanium nail, a buccal tube is fixed on the labial and buccal surfaces of molar, an anterior dental area of an orthodontic dental arch wire is arranged in a groove of an orthodontic bracket, the distal end of a posterior dental area is inserted into the buccal tube, one end of a spring is connected with the posterior dental area, the other end of the spring is connected with the buccal tube, when the front traction of the maxilla is performed, the pressure spring moves forwards under the traction effect, the pressure spring keeps releasing elasticity, the pressure spring presses against the buccal tube connected with the molar through the elasticity, and the molar distancing is realized through the sliding of the buccal tube.

2. The invention provides a front traction and molar distancing combined orthodontic device, which is used for treating patients with common maxillary hypoplasia and moderate and severe crowding in orthodontic department, wherein two sets of devices are worn simultaneously without mutual influence in the treatment process, and the two operations of front traction and molar distancing are completed simultaneously, so that the problems of maxillary sagittal hypoplasia are solved, the relationship between upper and lower jaws is coordinated, and simultaneously, a gap is provided for relieving maxillary crowding through molar distancing, the orthodontic treatment time is shorter, and the efficiency is higher.

3. According to the orthodontic device with the front traction and molar removability combination, the fixing plate is made of the micro titanium plate and is fixed by the three titanium nails, so that more stable anchorage can be provided, under the action of traction forces at different angles, regions with larger stress on a fixing region and a traction region of the fixing plate are concentrated in a turning region, the surface tension load born in a unit area is smaller, no obvious over-stress region appears, and the durability of the micro titanium plate is improved.

Drawings

Fig. 1 is a schematic structural view of an orthodontic device combining anterior traction and molar distalization according to the invention.

Fig. 2 is a schematic view of a structural fixing plate of the orthodontic device combining forward traction and molar distalization of the invention.

Fig. 3 is a schematic view of a distal component of a combined anterior traction and molar distal orthodontic device structure of the present invention.

FIG. 4 is a schematic view of an arch wire of the orthodontic device structure combining anterior traction and molar distalization

Fig. 5 is a schematic view of the orthodontic appliance of the invention in use with a combination of anterior distraction and molar distalization.

In the figure: 1. a fixing plate; 11. a fixed zone; 12. a through hole; 13. an extension arm; 14. a towing hook; 2. an arch wire; 21. an anterior tooth zone; 22. a posterior dental region; 23. a traction member; 3. a bracket; 4. a spring; 5. a buccal tube.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.