Trapezoidal groove bracket

Abstract

The utility model relates to a trapezoidal groove bracket which comprises a bracket seat and a bracket wing which are matched to form a groove with a variable distance, wherein at least one surface of the groove wall of the groove formed by oppositely matching the bracket seat and the bracket wing is an inclined surface, and the included angle between the groove wall and the groove bottom is 45-90 degrees. The utility model has the characteristics of unique conception, simple structure, and easy stable ligation of the arch wire; especially, the three entity planes of the trapezoid groove can be adjusted to form a triangle in an enclosing mode, the arch wire is ligated after being placed, the arch wire is easily and stably ligated to the precise position, the clearance between the arch wire and the groove is reduced, and the arch wire is not prone to dislocating.

Description

Technical Field:

[0001] The utility model belongs to the technical field of dental orthodontics, and particularly relates to a trapezoidal groove bracket. Background Art:

[0002] The popularization of the active wing bracket has brought great convenience to the orthodontic clinic. At different stages of orthodontics, the width of the rectangular groove can be adjusted to meet the needs, overcoming the need to replace the bracket multiple times in the case of fixed wing brackets. The adjustable rectangular groove follows the idea of the fixed groove. After the arch wire enters the groove, it is not easy to be ligated tightly and is prone to slipping out, affecting the accurate positioning of the teeth.

[0003] How to provide a more reasonable technical solution has become the object of research of the present invention. Summary of the Invention:

[0004] The purpose of the utility model is to design a trapezoidal groove bracket with a bevel surface on the mating surface of the bracket base and the bracket wing.

[0005] The technical solution of the utility model is realized as follows: A trapezoidal groove bracket includes a bracket base and a bracket wing, and the two cooperate to form a groove with variable spacing; characterized in that: at least one of the groove walls formed by the opposite cooperation of the bracket base and the bracket wing is a bevel surface, and the angle between the groove wall and the groove bottom is between 45 degrees and 90 degrees.

[0006] The bracket base is processed from bottom to top with a base for bonding, a platform with tenon grooves on both sides, and a fixed wing standing at one end of the platform; symmetric tenon feet are processed on both sides of the lower part of the bracket wing, and the tenon feet are inserted into the tenon grooves and can be slidably adjusted; the opposite surfaces of the fixed wing and the bracket wing form the groove wall of the groove, and the platform forms the groove bottom of the groove.

[0007] A groove with the same direction as the groove direction is processed on the platform of the bracket base.

[0008] Step portions are convexly provided on the upper parts of the opposite surfaces of the fixed wing and the bracket wing on the bracket base towards the groove, and ligation hooks are exhibited outwards on the upper parts of the opposite surfaces; the groove formed by the two step portions is a closed groove.

[0009] The utility model has the characteristics of unique concept, simple structure, and easy stable ligation of the arch wire; in particular, the three solid planes of the adjustable trapezoidal groove enclose a triangle. After the inserted arch wire is ligated, it is easy to stably ligate the arch wire at the accurate position, and the clearance between the arch wire and the groove is reduced, and the arch wire is not easy to be displaced. Brief Description of the Drawings:

[0010] The following further illustrates the present invention with specific illustrations:

[0011] Figure 1 It is a schematic diagram of a trapezoidal groove bracket

[0012] Figure 2 Schematic diagram of one side of a trapezoidal groove bracket

[0013] Figure 3 Exploded view of a trapezoidal groove bracket

[0014] Figure 4 Schematic diagram of the second trapezoidal groove bracket

[0015] Figure 5 Schematic diagram of one side of the second trapezoidal groove bracket

[0016] Figure 6 Exploded view of the second trapezoidal groove bracket

[0017] Figure 7 Schematic diagram of the side of a right trapezoidal groove

[0018] Wherein

[0019] 1 - Bracket base; 11 - Base; 111 - Background pattern; 12 - Platform; 121 - Mortise groove; 122 - Groove;

[0020] 13 - Fixed wing;

[0021] 2 - Bracket wing; 21 - Mortise foot; 22 - Ligation hook;

[0022] 3 - Groove; 31 - Groove wall; 32 - Groove bottom; 33 - Step portion; Specific implementation manner:

[0023] Referring to Figure 1 、 Figure 2 and Figure 3 , the trapezoidal groove bracket includes a bracket base 1 and a bracket wing 2, and the two cooperate to form a groove 3 with variable spacing; the groove walls 31 formed by the bracket base and the bracket wing cooperating with each other are inclined planes, and the included angle between the groove wall 31 and the groove bottom 32 is between 45 degrees and 90 degrees. During the ligation process, the bracket wing 2 forms a trapezoidal groove 3 with a width that can be contracted, changing the structural form of the traditional rectangular groove, that is, both groove walls are in a right - angle state. During ligation, the two groove walls only form a clamping force parallel to the arch wire surface, which is not only difficult to ligate tightly but also easy to come out. However, during the ligation process of the trapezoidal groove 3, the three solid planes forming the groove can enclose a triangle and can stably restrain the arch wire therein.

[0024] More specifically, the bracket base 1 is processed from bottom to top with a base 11, a platform 12, and a fixed wing 13 standing at one end of the platform; the bottom surface of the base 11 is processed with a background pattern 111 for bonding to the tooth surface, and mortise grooves 121 for inserting and sliding - positioning the bracket wing 2 are processed on both sides of the platform 12. Symmetric mortise feet 21 are processed on both sides of the lower part of the bracket wing 2. By inserting the mortise feet 21 into the mortise grooves 121, the width of the groove 3 formed by the two can be adjusted by sliding.

[0025] The groove 3 is substantially a space, which is enclosed by the fixing wing 1 and the bracket wing 2 to form an open space, wherein the fixing wing 1 and the bracket wing 2 face each other to form a groove wall 31 of the groove, and the platform 12 forms a groove bottom 32 of the groove.

[0026] Reference Figure 4 , Figure 5 and Figure 6 On the basis of the above, a groove 122 is processed on the platform 12 of the bracket seat, and the central axis of the groove 122 is consistent with the direction of the groove 3. At the beginning of correction, due to the serious dislocation, only a small steel wire can be used for traction. However, during the process of ligating the small steel wire into the groove, it is difficult to locate it to the accurate position, and it is easy to slide on the bottom of the groove 32. Using this groove 122 can also increase resistance and effectively reduce sliding.

[0027] Furthermore, the facing surfaces of the fixing wing 13 and the bracket wing 2 on the bracket seat, that is, the upper part of the groove wall 31, are both provided with a step portion 33 protruding toward the groove 3, and the upper part of the opposite back surface is provided with a ligation hook 22 extending outward. The groove 3 formed by the two step portions 33 can restrain the rectangular cross-section archwire therein, and the two ligation hooks 22 provide a force point for the rubber ring ligation.

[0028] Reference Figure 7 In the above two examples, the groove 3 is an isosceles trapezoid, or a right-angled trapezoid. The groove wall on one side of the bracket seat 1 and the bracket wing 2 is a right angle, and the other side is an inclined surface, such as Figure 7 One side of the middle bracket seat 1 is a right angle, and one side of the bracket wing 2 is an inclined surface, and the facing surfaces cooperate to form a right-angle trapezoidal groove 3.

[0029] The structure of the right-angled trapezoidal groove 3 is particularly suitable for the solution in which the groove wall 31 has a step portion 33, so that the upper edge of the groove wall 31 of the right-angle surface can also be constrained by the step portion.

Claims

1. A trapezoidal groove bracket, comprising a bracket base and a bracket wing, which cooperate to form a groove with variable spacing; characterized in that: At least one side of the groove wall formed by the bracket base and the bracket wing cooperating with each other is an inclined surface, and the angle between the groove wall and the groove bottom is between 45 degrees and 90 degrees.

2. The trapezoidal groove bracket according to claim 1, characterized in that: The bracket base is processed from bottom to top with a base for bonding, a platform with tenon grooves on both sides, and a fixed wing standing at one end of the platform; the lower sides of the bracket wings are processed with symmetric tenon feet, which are inserted into the tenon grooves and can be adjusted by sliding; the opposite surfaces of the fixed wing and the bracket wing form the groove wall of the slot groove, and the platform forms the groove bottom of the slot groove.

3. A trapezoidal groove bracket according to claim 1 or 2, characterized in that: A groove with an axis consistent with the direction of the slot groove is processed on the platform of the bracket base.

4. A trapezoidal groove bracket according to claim 1 or 2, characterized in that: On the opposite surfaces of the fixed wing and the bracket wing on the bracket base, a stepped portion is convexly provided towards the slot groove at the upper part, and a ligature hook is extended outwards at the upper part of the opposite surface. The stepped portions form a slot groove with a constricted opening.

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