CN212996814U

CN212996814U - Upper jaw palate rod type traction correction device

Info

Publication number: CN212996814U
Application number: CN202021625838.7U
Authority: CN
Inventors: 石飒飒; 廖丽斐; 张晓东
Original assignee: Ordnance Industry Hygiene Institute
Current assignee: Ordnance Industry Hygiene Institute
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-04-20
Anticipated expiration: 2030-08-06

Abstract

The utility model provides a maxilla rod-type traction and correction device belongs to oral cavity tooth and corrects technical field, and the device includes: 2 ring rings, which are sleeved on the first molar teeth on the two sides, and a palatal tube is arranged on the palatal side of each ring; a palatal rod distractor connected to 2 of said band rings, said palatal rod distractor comprising: the horizontal palate rod is arranged between the 2 palate tubes; 2 retention arms, which are formed by bending two end parts of the cross palatal bar, and each retention arm is arranged in the palatal canal corresponding to the retention arm; 2U-shaped cantilevers extending from the corresponding retention arms to the palate side of the second molar, the end parts of the cantilevers being provided with U-shaped protrusions; the buccal side of the second molar is provided with a buccal tube which is detachably connected with the corresponding U-shaped bulge through a chain assembly. The traction direction of the device is flexible and adjustable, and the traction force can be gradually adjusted, so that the correction efficiency and the correction effect are improved; the device is convenient to use, low in cost and high in comfort level.

Description

Upper jaw palate rod type traction correction device

Technical Field

The utility model belongs to the technical field of oral cavity tooth is rescued, concretely relates to upper jaw palatal bar formula pulls orthotic devices.

Background

The molar occlusion deformity is a malocclusion deformity which is relatively common in oral clinic, the incidence rate of the second molar occlusion is reported to be 8-16% of the total malocclusion deformity according to literature, and the incidence rate of the second molar occlusion deformity is up to 22.86% in the second molar deep coverage. Korean spring, silver clock, etc. analysis of 5012 malocclusion patient models and the panoramic picture found that 2067 patients accompanied with the second malocclusion was accompanied with 41.24% of incidence rate, wherein the incidence rate of orthodontics reached 22.84%. The second molar orthodontics is characterized in that a tongue inclined plane of a palatal apex of the upper jaw second molar is contacted with a cheek inclined plane of a buccal apex of the lower jaw second molar, and an occlusal plane is not in occlusion contact relation.

At present, the clinical correction method for maxillary second molar occlusion is more, and the main correction principle is as follows: the maxillary second molar palate moves towards, bringing the maxillary second molar into dentition. For example, an upper jaw adhesive type variant palatal bar (TPA) worn in an entrance is an improved one, which is adhesively fixed to a first molar, pulls a locking tooth to move toward the palate, and is retained by the TPA by adhesion, and needs to be detached and re-adhered if force is applied for reshaping during a re-diagnosis, which is complicated in operation and the adhesive material is easily released during the intake of a patient.

In addition, the existing problems of long cycle, high cost, complex manufacture of the correction device, high dependence of patients and the like exist in the correction of the second molar orthodontics.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an object of the present invention is to provide a palatal maxillary bar type traction and correction device, which is disposed on the palatal side by a palatal bar type traction device, is placed in a palatal tube with the palatal side by bending and molding, extends a U-shaped cantilever from the palatal tube, and is connected to a buccal tube of a second molar by a chain assembly, wherein the traction direction is flexible and adjustable, and the traction force can be gradually adjusted, thereby improving the correction efficiency and the correction effect; the device is convenient to use, low in cost and high in comfort level.

In order to achieve the above object, the technical solution of the present invention is as follows.

A maxillo-palatal rod traction orthotic device, comprising:

2 ring rings, which are sleeved on the first molar teeth at two sides, and a palatal tube is arranged at the palatal side of each ring;

a palatal rod distractor connected to 2 of said band rings, said palatal rod distractor comprising:

the horizontal palate rod is arranged between the 2 palate tubes;

2 retention arms, which are formed by bending two end parts of the cross palatal bar, and each retention arm is arranged in the palatal canal corresponding to the retention arm;

2U-shaped cantilevers extending from the corresponding retention arms to the palate side of the second molar, the end parts of the cantilevers being provided with U-shaped protrusions;

the buccal side of the second molar is provided with a buccal tube which is detachably connected with the corresponding U-shaped bulge through a chain assembly.

Further, the end part of the cross palatine bar is arranged at one side of the palatine tube corresponding to the cross palatine bar, which is close to the second molar.

Further, the size of one side, far away from the second molar, of the U-shaped protrusion is larger than the size of one side, close to the second molar, of the U-shaped protrusion.

Furthermore, a plurality of buckling holes are formed in the chain assembly, and the size of each buckling hole is matched with the corresponding U-shaped protrusion.

Furthermore, the palatal bar type tractor is made of stainless steel wires, and the retention arms are detachably connected with the corresponding palatal tubes through twisted wires.

Further, the distance between the U-shaped cantilever and the side wall of the second molar is 10mm, and the distance between the U-shaped cantilever and the maxillary palatal side mucous membrane is 1 mm.

Further, the buccal tube comprises:

a connecting portion provided on a buccal side of the second molar;

and the buckling part is arranged on the connecting part and used for connecting the chain assembly.

Furthermore, the shape of the buckling part is C-shaped or inverted L-shaped.

The utility model provides a pair of upper jaw palatal bar formula pulls orthotic devices has following beneficial effect:

1. the utility model discloses a palatal bar tractor is formed by bending a stainless steel wire, and the both ends of the horizontal palatal bar of upper jaw are bent and are made the maintenance arm of laminating mutually with palatal canal, and the maintenance arm is turned over to the second molar to the curved U type cantilever of making of palatal centre joint, be used for hanging chain assembly, the terminal bending of U type cantilever is made the ringlet, in order to avoid fish tail tongue body or palatal side mucous membrane. When the appliance is used, the chain component is hung between a buccal tube and a U-shaped bulge of a second molar at the occlusion side, the force value is 200g, 1 time of force application is carried out every 4 weeks, the chain component is replaced during force application, the second molar is pressed down towards the palate side to right the second molar, and the appliance is stopped until the normal overlapping covering relation of the second maxillary molar is established.

2. The traction direction of the correction device provided by the utility model is flexible and adjustable, and the traction force can be gradually adjusted, thereby improving the correction efficiency and the correction effect; the device is convenient to use, low in cost and high in comfort level.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic view of the structure of the buccal tube of fig. 1.

In the figure: 1. a belt ring; 2. a palatine canal; 3. a buccal tube; 31. a connecting portion; 32. a fastening part; 4. a palatal bar retractor; 41. a cross palatal bar; 42. a retention arm; 43. a U-shaped cantilever; 431. a U-shaped bulge; 5. A chain assembly; 51. buckling holes; 6. a first molar; 7. and (5) second grinding the teeth.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1, which is a schematic structural diagram of a maxilla rod type traction and rectification device according to an embodiment of the present invention, the maxilla rod type traction and rectification device includes 2 belt rings 1 and a palatal rod type traction device 4.

2 ring rings 1 are sleeved on the first molar teeth 6 at two sides, and a palatal tube 2 is arranged at the palatal side of each ring 1; the buccal side is provided with a second buccal tube, 2 ring rings are arranged for positioning and installing a palatal rod type retractor 4, and the palatal tube 2 is welded on the palatal side of the ring 1.

The palatal bar type retractor 4 is connected with 2 belt rings 1 and is mainly used for retracting and correcting a second molar 7 on the maxillary and palatal side. The palatal bar retractor 4 includes a

cross palatal bar

41, 2 retention arms 42 and 2U-shaped cantilever arms 43.

The cross palatine bar 41 is arranged between 2 palatine tubes 2; for connecting 2 belt loops. The end of the cross palatine bar 41 is arranged on the side of the palatine tube 2 corresponding to the cross palatine bar close to the second molar 7.

2 retention arms 42 are formed by bending two end parts of the cross palatine bar 41, and each retention arm 42 is arranged in the palatine canal 2 corresponding to the retention arm; the palatal bar type retractor 4 is made of stainless steel wire, and the retention arm 42 is detachably connected with the corresponding palatal tube 2 through a twisted wire.

The 2U-shaped cantilevers 43 extend from the corresponding retention arms 42 to the palatal side of the second molar 7, and the ends thereof are provided with U-shaped projections 431; the dimension of the U-shaped protrusion 431 on the side away from the second molar 7 is larger than the dimension of the U-shaped protrusion 431 on the side close to the second molar 7.

For example, a cross palate bar 41 is bent by 0.8mm stainless steel wires between 2 first molars 6, the steel wires are bent at the palate side of the first molars 6 to form retention arms 42 respectively attached to the palate tube 2, the retention arms 42 are bent back toward the second molars 7, a U-shaped cantilever 43 is bent at the palate side of the second molars 7 toward the palatal suture direction of the palate to hang the rubber chain 5, and the tail end of the cantilever is bent into a small loop to avoid scratching the tongue. Wherein, the distance between the U-shaped cantilever 43 and the side wall of the second molar 7 is about 10mm, and the U-shaped cantilever is opposite to the palatal center of the second molar 7; the distance between the U-shaped cantilever 43 and the palatal mucosa is 1mm, so as not to press the palatal mucosa when applying force.

Referring to fig. 1 to 2, a buccal tube 3 is disposed on a buccal side of the second molar tooth 7, and the buccal tube 3 is detachably connected to the corresponding U-shaped protrusion 431 by a chain assembly 5. The chain component 5 is provided with a plurality of buckling holes 51, and the size of each buckling hole 51 is matched with the corresponding U-shaped protrusion 431. Here, the chain assembly is a rubber chain.

Specifically, the buccal tube 3 includes a connecting portion 31 and an engaging portion 32.

The connecting portion 31 is provided on the buccal side of the second molar 7;

the engaging portion 32 is disposed on the connecting portion 31 for connecting the chain assembly 5. The shape of the engaging portion 32 is C-shaped or inverted L-shaped. The chain component is buckled on the buckling part.

In use, the retention arm 42 is tied and fixed in the palatal canal with the ring of the first molar 6 by a 0.25mm twisted wire. After fitting, the palatal bar distractor is adhered to the first molar 6, and the buccal tube 3 is adhered to the buccal side of the second molar 7. The locking side is suspended between the buccal tube 3 of the second molar 7 and the U-shaped cantilever 43 by using a rubber chain, the force value is 200g, the force is applied once every 4 weeks, the rubber chain is replaced during the force application, the second molar 7 is righted by pressing down to the palate side, and the use is stopped until the second molar 7 establishes a normal covering relation.

In this embodiment, the palatal bar type retractor is formed by bending a stainless steel wire, the two ends of the upper jaw horizontal palatal bar are bent to form retention arms attached to the palatal tube, the retention arms are reversely bent towards the second molar and a U-shaped cantilever is sewn into the palate for suspending the chain assembly, and the tail end of the U-shaped cantilever is bent to form a small loop so as to avoid scratching the tongue body or the palatal side mucous membrane. The traction direction of the correction device is flexible and adjustable, and the traction force can be gradually adjusted, so that the correction efficiency and the correction effect are improved; convenient to use, with low costs, and the comfort level is high.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A maxillo-palatal rod traction orthotic device, comprising:

2 ring rings (1) which are sleeved on the first molars (6) at two sides, and a palatal tube (2) is arranged on the palatal side of each ring (1);

a palatal retractor (4) connected to 2 of said bands (1), said palatal retractor (4) comprising:

a lateral palatine bar (41) arranged between the 2 palatine tubes (2);

2 retention arms (42) formed by bending two end parts of the cross palatal bar (41), wherein each retention arm (42) is arranged in the palatal tube (2) corresponding to the retention arm;

2U-shaped cantilevers (43) extending from the corresponding retention arms (42) to the palate side of the second molar (7), the ends of which are provided with U-shaped protrusions (431);

the buccal side of the second molar (7) is provided with a buccal tube (3), and the buccal tube (3) is detachably connected with the corresponding U-shaped bulge (431) through a chain assembly (5).

2. The maxillary palatal bar type traction orthotic device of claim 1, wherein an end of the lateral palatal bar (41) is disposed at a side of the palatal tube (2) corresponding thereto near the second molar (7).

3. The maxillary palatal bar type traction orthotic device of claim 1, wherein a size of a side of the U-shaped protrusion (431) distal to the second molar (7) is larger than a size of a side of the U-shaped protrusion (431) proximal to the second molar (7).

4. The maxillary palatal bar type traction orthotic device of claim 1, wherein the chain assembly (5) is provided with a plurality of fastening holes (51), and each fastening hole (51) is matched with the corresponding U-shaped protrusion (431) in size.

5. The maxillary palatal traction orthotic device of claim 1, wherein the palatal retractor (4) is made of stainless steel wire, and the retention arms (42) are detachably connected with the corresponding palatal tubes (2) through twisted wire.

6. The maxillary palatal traction orthotic device of claim 1, wherein the U-shaped cantilever (43) is 10mm from the side wall of the second molar (7) and the U-shaped cantilever (43) is 1mm from the maxillary palatal mucosa.

7. The maxillary palatal traction orthotic device of claim 1, wherein the buccal tube (3) comprises:

a connecting portion (31) provided on the buccal side of the second molar (7);

and the buckling part (32) is arranged on the connecting part (31) and is used for connecting the chain assembly (5).

8. The maxillo-palatal rod traction orthotic device according to claim 7, wherein said clasp (32) is C-shaped or inverted L-shaped.