CN201320224Y

CN201320224Y - Orthodontic appliance

Info

Publication number: CN201320224Y
Application number: CNU2008202291764U
Authority: CN
Inventors: 陈启锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-01
Filing date: 2008-12-01
Publication date: 2009-10-07
Anticipated expiration: 2018-12-01

Abstract

The utility model relates to an orthodontic appliance which comprises an arch wire, a support groove and an elastic piece; wherein the support groove comprises a main body, a movable raised wing and a stationary raised wing fixed with the main body; the main body comprises an underside matching with the surface of a tooth; a straight slot with adjustable width is arranged between the stationary raised wing and the movable raised wing; the stationary raised wing is ligated with the movable raised wing through an elastic ring; the first end of the elastic piece is connected with the support groove, and the second end, transformed under stress, is connected on the arch wire, with certain distance to the first end; and torsional force acting on the tooth surface is generated between the support groove and the arch wire. The orthodontic appliance has the advantages of straightening the tooth and reducing the pain of the patient.

Description

A kind of orthodontic appliance

Technical field

This utility model relates to the medical apparatus field, relates in particular to a kind of orthodontic appliance.

Background technology

At present usually the orthodontic appliance that adopts is to be fixed on the corona by the metal arch wire that bracket will have a Standard arch wire, and the metal arch wire produces corrective force and realizes rectification to lopsided tooth.

The bracket structure of existing orthodontic appliance is the bracket that a bottom surface and the flank of tooth match, and as shown in Figure 1, bracket 30 comprises a body 32 and four protruding wings 34.Four protruding wings 34 are one-body molded with body 32, and body 32 bottom surfaces are matsurfaces, and itself and the tooth flank of tooth coincide, and be used to stick binding agent, thereby bracket 30 is bonded on the tooth.Be formed with flat recess 38 between two protruding wings 34 of bracket 30 1 sides and two the protruding wings 34 of opposite side.Arch wire is contained in this flat recess 38.The outside of the protruding wing 34 offers ligation groove 36, is convenient to by the elastic ring ligation further arch wire is fixed on the body 32.In use, bracket 30 bottom surfaces are bonded on the tooth, bracket 30 of each tooth bonding is pacified arch wire in the flat recess 38 of bracket 30 then, uses the structure of each malposed tooth of elastic force traction correcting of arch wire.

Yet malposed tooth is clinically arranged different, dislocation before and after the tooth that has, and the tooth that has tilts, because flat recess 38 width of this orthodontic appliance are fixed and its width is suitable with the arch wire diameter.For on the facing with tooth left or Right deviation tiltedly be arranged on bracket 30 on the inclination tooth, pacify the flat recess 38 of its inclination at arch wire after, one section arch wire part of this position also becomes heeling condition, but because arch wire tends to keep and the normal tooth horizontal state, its part that is positioned at flat recess 38 on this inclination tooth bracket 30 is turned round to level by brute force, tend to tooth is applied big active force, thereby brought bigger misery to the patient.

The utility model content

The purpose of this utility model is to provide a kind of patient suffering's of alleviating orthodontic appliance.

For achieving the above object, this utility model adopts following structure:

A kind of orthodontic appliance, comprise arch wire and bracket, wherein, this bracket comprises body, the moving protruding wing reaches and the fixed fixed protruding wing of body, should decide between the protruding wing and the moving protruding wing is broad-adjustable flat recess, should pass through an elastic ring ligation with the moving protruding wing by the fixed protruding wing, this body comprises a bottom surface that coincide with the tooth flank of tooth, this orthodontic appliance also comprises elastic component, described elastic component first end connects described bracket, second end has on the position of a segment distance from first end being connected on arch wire under the stress and deformation situation, and at the twisting resistance that is created between described bracket and the arch wire on the described flank of tooth.

Wherein, described elastic component is a torsion spring, offers the installing hole that becomes angle on the described flank of tooth with described arch wire on the described body, first end of described torsion spring is straight end, second end is a hook arrangement, and described first end is plugged in the described installing hole, and described second end colludes on described arch wire.

Wherein, described elastic component is a tinsel, and this tinsel one end is fixed in described bracket, and other end clasp joint is on described arch wire.

Wherein, should move the protruding wing and be dynamically connected with fixed protruding wing slip, so that the flat recess width-adjustable, the moving protruding wing and the folding hook of deciding also to be formed with on the protruding wing belt grooves, the moving protruding wing becomes back structure setting mutually with the folding hook of the fixed protruding wing, and described elastic ring winding is accommodated the described moving protruding wing and the fixed protruding wing in groove.

Wherein, this moving protruding wing is respectively two with the fixed protruding wing, and two moving protruding wings and two fixed protruding wings fuse respectively.

This utility model by elastic ring and elastic component can provide on the described flank of tooth twisting resistance, with respect to prior art, have aligning tooth and alleviate patient suffering's beneficial effect.

Description of drawings

Fig. 1 is existing orthodontic appliance bracket structure chart;

Fig. 2 is the structural representation of this utility model orthodontic appliance embodiment;

Fig. 3 is the three-dimensional structure diagram of the bracket of this utility model orthodontic appliance embodiment;

Fig. 4 is the planar structure sketch map of the bracket of this utility model orthodontic appliance embodiment.

The primary clustering symbol description

The 10-arch wire; The 20-torsion spring; The 30a-bracket; The 32a-body; 34a-moves the protruding wing; The fixed protruding wing of 34b-; 36a, 36b-groove; The 38a-flat recess; The 39a-installing hole; The 50-elastic ring

The specific embodiment

As shown in Figure 2, this utility model orthodontic appliance proposes an embodiment.The orthodontic appliance comprises arch wire 10, torsion spring 20 and bracket 30a.

As shown in Figure 3, bracket 30a is a moving wing bracket, and it comprises body 32a, at least one moving protruding wing 34a and and the integrated certain at least protruding wing 34b of body 32a.In the present embodiment, moving protruding wing 34a and fixed protruding wing 34b respectively have two, and fuse respectively.Body 32a bottom surface is a matsurface, and itself and the tooth flank of tooth coincide, and be used to stick binding agent, thereby bracket 30a is bonded on the tooth.Form flat recess 38a between moving protruding wing 34a and fixed protruding wing 34b holding arch wire 10, and moving protruding wing 34a is slidingly connected with deciding protruding wing 34b, thereby makes the width-adjustable of flat recess 38a.

Protruding wing 34a becomes back structure setting mutually with the folding hook of fixed protruding wing 34b, this folding hook-forming has

ligation groove

36a, 36b, elastic ring 50 (see figure 4) windings will move protruding wing 34a in groove 36a, the 36b of folding hook and fixed protruding wing 34b accommodates, and further arch wire 10 are fixed on the body 32a.Elastic ring 50 is made by elastomeric material.Also offer an installing hole 39a who has angle with flat recess 38a on the body 32a of bracket 30a.In the present embodiment, installing hole 39a is vertical with flat recess 38a.Installing hole 39a runs through the both sides of body 32a up and down, is used to plug torsion spring 20, also can be used for plugging other auxiliary tube of clinical usefulness.

Please consult Fig. 1 again, arch wire 10 and torsion spring 20 all adopt elastic metallic material.Torsion spring 20 comprises first end and second end, wherein first end is straight end, be used to insert in the bracket 30a, second end is a hook arrangement, it colludes at described arch wire 10 by elastic bending torsion spring 20 or arch wire 10 has on the position of a segment distance from bracket 30a, thereby is created in the twisting resistance on the tooth flank of tooth between bracket 30 and arch wire 10.

During use, bracket 30a is bonded on each dislocation tooth, if deformation extent (as the inclined degree) difference of adjacent teeth, after arch wire 10 was gone into flat recess 38a, arch wire 10 can will move protruding wing 34a and back down.As shown in Figure 2, for the tooth of seeing from labial surface toward left bank, make protruding wing 34a slide to the trend of protruding surely wing 34b because the accommodation of elastic ring 50 has, 50 couples of bracket 30a of elastic ring have produced the twisting resistance of a counter clockwise direction (from the labial surface direction), can be to a certain extent with this tooth aligning; Simultaneously, first end of torsion spring 20 is inserted among the installing hole 39a of bracket 30a of this tooth correspondence, spring coil is positioned at bracket 30 tops, and second end is buckled on the arch wire in bracket 30a left side, can produce an anticlockwise twisting resistance once more to bracket 30 bottom surfaces by torsion spring 20, thereby make tooth obtain better rectification effect.Simultaneously, because moving protruding wing 34a is movable, but the elasticity in arch wire 10 processes that tilt or the trend level of the flat recess 38a between moving protruding wing 34a and the fixed protruding wing 34b is backed down or is folded, 10 pairs of brackets of arch wire, 30 excessive twisting resistances can dwindle in the big process of flat recess 38a width change, be that arch wire 10 tilts more, flat recess 38a width is big more, make the deflection angle of bracket 30a be unlikely to excessive, also just be unlikely to the inclination tooth is produced excessive active force, alleviate the misery of bringing to the patient in the orthodontics process.

Be appreciated that in the foregoing description that torsion spring 20 1 ends remove and are plugged in bracket 30a China and foreign countries, also can fix with bracket 30a.In addition, torsion spring 20 also can connect the elastic component replacement that is connected and provides tooth flank of tooth twisting resistance with bracket 30a with arch wire 10 respectively by other two ends, be fixed in bracket 30a as an end, the tinsel of other end clasp joint on arch wire 10, perhaps two ends are individually fixed on bracket 30a and the arch wire 10 and the extension spring that is stretched.

The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes this utility model description and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1, a kind of orthodontic appliance, comprise arch wire and bracket, it is characterized in that: this bracket comprises body, the moving protruding wing reaches and the fixed fixed protruding wing of body, should decide between the protruding wing and the moving protruding wing is broad-adjustable flat recess, should pass through an elastic ring ligation with the moving protruding wing by the fixed protruding wing, this body comprises a bottom surface that coincide with the tooth flank of tooth, this orthodontic appliance also comprises elastic component, described elastic component first end connects described bracket, second end has on the position of a segment distance from first end being connected on arch wire under the stress and deformation situation, and at the twisting resistance that is created between described bracket and the arch wire on the described flank of tooth.

2, orthodontic appliance according to claim 1, it is characterized in that: described elastic component is a torsion spring, offer the installing hole that on the described flank of tooth, becomes angle on the described body with described arch wire, first end of described torsion spring is straight end, second end is a hook arrangement, described first end is plugged in the described installing hole, and described second end colludes on described arch wire.

3, orthodontic appliance according to claim 1 is characterized in that: described elastic component is a tinsel, and this tinsel one end is fixed in described bracket, and other end clasp joint is on described arch wire.

4, orthodontic appliance according to claim 1 and 2, it is characterized in that: this moving protruding wing is dynamically connected with fixed protruding wing slip, so that flat recess width-adjustable, the moving protruding wing and the folding hook of deciding also to be formed with on the protruding wing belt grooves, the moving protruding wing becomes back structure setting mutually with the folding hook of the fixed protruding wing, and described elastic ring winding is accommodated the described moving protruding wing and the fixed protruding wing in groove.

5, orthodontic appliance according to claim 1 is characterized in that: this moving protruding wing is respectively two with the fixed protruding wing, and two moving protruding wings fuse.