CN205569099U - Detachable's orthodontic bracket - Google Patents

Abstract

The utility model discloses a detachable's orthodontic bracket belongs to orthodontics technical field. A detachable's orthodontic bracket including holding in the palm the tank bottom board and holding in the palm the groove body, support groove body including holding in the palm the groove retainer and holding in the palm the groove activity body and connecting elements, ask the groove retainer to be connected with holding in the palm the tank bottom board, ask the groove activity body to be connected with the arch wire, hold in the palm groove retainer and movable the personally experiencing sth. Part of the body in support groove and can realize detachable's connection through the connecting elements. Orthodontic bracket can give the tooth with the accurate conduction of the deflection that prefabricates the arch wire to can accurate control tooth motion mode and amount of exercise.

Description

A kind of detachable orthodontic bracket

Technical field

This utility model relates to orthodontics technical field, especially relates to a kind of tooth rectification bracket.

Background technology

Mouth cavity orthodontic is uneven to tooth arrangement by application apparatus for correcting and lopsided treated of facing Subject.At present, the Bracket being most widely used is corrected, and mainly includes that fixed lip side is corrected and customized type Tongue side is corrected.

Fixed lip side is corrected and is realized based on the interaction between the arch wire of the bracket and sequence that are adhered to lip side , mainly include winged bracket (such as patent documentation CN204446157U, CN2614644Y, CN202020559U), Locking bracket (such as patent documentation CN104434324A, CN204636588U, CN201578387U) etc., its It is elasticity and the orthodontic bracket restriction to arch wire utilizing round wire in early days, to realize tooth substantially according to bow The shape of silk slidably realizes coming into line of tooth, and stage is by square arch wire and the square groove of orthodontic bracket Interaction, it is achieved the control on tooth three-dimensional direction.This is rescued system and there is problems in that 1. in early days The controllability that during coming into line, tooth moves is poor, is primarily due to during the correction in this stage, tooth Motion mainly by arch wire in the range of bracket slidably, it is impossible to the direction of motion and the motion to tooth Amount accurately controls, and is easily caused uncertain teeth training；2. during later stage intense adjustment, Square arch wire and square groove cannot realize being in close contact, and there is certain clearance between arch wire and groove, need torr Groove pre-sets and increases extra torque etc. above extra angle or arch wire and necessarily compensate.

Customized type tongue side is corrected the simulation row's tooth by computer or craft and is realized the individual character of whole correcting process Change arch wire customization, with realize the more accurate motor control of tooth (patent documentation CN104720901A, CN202136432U, CN202654253U).But, this is rescued system and yet suffers from problems with: 1. tongue side Fixed appliance still uses the principle of confounding of lip side NITI Ω arch wire and square arch wire next with the interaction of bracket The three-dimensional realizing tooth controls, the problem therefore equally existing above-mentioned lip side NITI Ω arch wire, and tongue side Bracket is less compared with labial bracket volume, and groove is narrower, and three-dimensional motion is worse；2. while, space, tongue side is relatively Little, patient's mouth opening is limited, and the ligation between lingual bracket and arch wire is increasingly complex compared with lip side, it is therefore desirable to face The bed more professional training of doctor and longer chair other operating time.

It can be seen that above-mentioned fixed rectification is based on arch wire sliding mechanism, it is desirable between arch wire and orthodontic bracket For low-frictional force, so it is easy to arch wire and slides in arch wire groove, set up and correct mechanical system.Based on arch wire Sliding mechanism rescue system, the accurate control of teeth training amount the most relatively difficult to achieve and motion mode.

Utility model content

This utility model is in order to solve the weak point in above-mentioned background technology, it is proposed that a kind of detachable Orthodontic bracket, the deflection of prefabricated arch wire can be conducted to tooth by this orthodontic bracket accurately, it is thus possible to smart Really control teeth training mode and quantity of motion.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of detachable orthodontic bracket, including bracket base and bracket body, it is characterised in that described Bracket body include bracket retainer and bracket mobile and connecting elements, at the bottom of bracket retainer and bracket Plate connects, and bracket mobile is connected with arch wire, and bracket retainer and bracket mobile are permissible by connecting elements Realize detachable connection.

Bracket base refers to the part being connected with bracket body being arranged on tooth, including such as In the patent documentations such as ZL200620115349.0, CN2686552Y describe base plate, also include as The tooth band described in the patent documentations such as ZL200920102206.X, CN102178563B, CN201642386U Ring.Bracket base can be the canonical form of being easy to mass production akin with tooth labial surface or lingual surface form State, it is also possible to for based on tooth labial surface or the form of lingual surface form personalized customization.

Bracket retainer described in the utility model is responsible for being connected with bracket base, and its connected mode is the most fixing Connect, such as welding etc..Bracket retainer can be personalized customization as bracket base, and one becomes Type, such as, use rapid shaping mode directly or indirectly to manufacture, or use numerical control milling directly to manufacture；Also may be used To be the standard type of batch production, then it is fixedly connected with bracket base.Preferably, bracket retainer For standard type, bracket base is based on dental morphology personalized customization, and is installing the one of bracket retainer Face is provided with a mounting platform, is connected fixing to bracket base and bracket retainer by modes such as welding.

In clinical practice state, phase para-position should be formed by connecting elements, bracket retainer and bracket mobile Putting fixing, the deflection of the most prefabricated profiled arch wire could pass through bracket mobile and be conducted to bracket accurately Retainer, accurate conduction is to tooth then.

Preferably, bracket retainer and bracket mobile are arranged to be formed each other the shape of interference fits, In conjunction with steel ligature, rubber ring or other connecting elements (card access node being such as arranged on bracket body Structure, pin joint structure or self-locking structure) so that bracket mobile is that relative position is fixed with bracket retainer.

Further, bracket retainer described in the utility model is provided with can contain all or part of torr The opening cavity of groove mobile.Opening cavity can be the barrel shaped structure of only one side (such as end face) opening, Can also be the through-hole structure of opposing sides (such as end face and bottom surface) opening, it is also possible to be end face and (or) Bottom surface opening, the groove structure of a certain relative two sides also opening.The shape of opening cavity is lived according to bracket The shape of kinetoplast is arranged, and should form interference fits with bracket mobile.Based on this purpose, the shape of opening cavity Shape and size can be set by global shape or the local shape of opening cavity containing part according to bracket mobile Put, preferably arrange according to global shape.So in clinical practice state, contain all for bracket retainer Or part bracket mobile, and form interference fits.

Be provided with arch wire groove and locating part in bracket mobile, in arch wire groove place arch wire, and be responsible for and Arch wire is fixed together, and it is certain form of on bracket retainer that locating part is responsible for limiting bracket mobile Motion.

Medically, the motion of tooth is defined with 6 kinds of type of sports, including the movement of middle-distant direction, gum Jaw to movement, words to movement, around the rotation of middle-distant direction, around gum jaw to rotation and around words to Rotation.

Arch wire groove can be consistent with the arch wire groove shape of existing orthodontic bracket, including two sides and one Bottom surface, now the opening direction of arch wire groove can be tongue to or lip to gum to or jaw to；Can also be Only one of which face, such as one side or a bottom surface；Can also be to have two faces, a side be plus one Individual bottom surface.

Further, through hole can be offered in a face of arch wire groove or two faces or three faces, in order to Later stage welding process increases the bonding area of arch wire and arch wire groove.

Locating part can limit the certain form of motion on bracket retainer of bracket mobile, at most can limit Bracket mobile is the motion of 5 types on bracket retainer, such as, limit bracket mobile at middle-distant direction With gum jaw to movement, and bracket mobile around near far to, gum jaw to words to rotation.At some In embodiment, arch wire groove is responsible for bracket mobile position on bracket retainer or fortune together with locating part Dynamic restriction, arch wire groove now should form interference fits with the opening cavity of bracket retainer.

Locating part in bracket mobile and bracket retainer contact or site of action can be at opening cavity Outward.Arranging locating part at the two ends of arch wire groove, locating part should cannot be introduced into bracket groove, therefore at gum jaw To and (or) words to external dimensions should be greater than the opening cavity of bracket retainer in both directions Inside dimension, the length of arch wire groove is consistent with the length of bracket retainer opening cavity simultaneously, so that Locating part can limit the movement along middle-distant direction in bracket retainer opening cavity of bracket mobile.Locating part Can be open cylinder, opening polygonal body or cylinder and the combination of polygonal body, preferably open cylinders Body or opening rectangular body.In this embodiment, the arch wire groove in bracket mobile is born together with locating part Blame bracket mobile position on bracket retainer or the restriction of motion, i.e. locating part are responsible for limiting bracket and are lived Kinetoplast in the movement of middle-distant direction, arch wire groove limit bracket mobile gum jaw to movement and around near and far To rotation and around words to rotation.In conjunction with on steel ligature or rubber ring or bracket retainer from The effect of lock construction element, can further limit bracket mobile in bracket retainer along words to movement, And around gum jaw to rotation.So that bracket mobile is fixed relative to position with bracket retainer.At this In embodiment, arch wire groove is as being made up of with a bottom surface two sides, then arch wire groove is being perpendicular to arch wire Each position or the external shape in the cross section of portion on groove length direction are polygons, preferably with torr The shape that the interior shape in the cross section of groove retainer opening cavity opposite position in the direction is consistent, Preferably, the arch wire groove external shape in the cross section of each position being perpendicular on arch wire groove length direction with The shape that the bracket retainer opening cavity interior shape in the cross section of direction correspondence position is consistent, thus Make the external dimensions of arch wire groove, i.e. plus the size after material thickness, and bracket retainer opening cavity Inside dimension consistent.Arch wire groove as being made up of a side and a bottom surface, or arch wire groove by One side or a bottom surface composition, then the face of arch wire groove should be the face that a thickness is bigger, its thickness Rotate around middle-distant direction in bracket retainer opening cavity it is ensured that arch wire groove can be limited.So archwire slot Ditch, after being installed to bracket retainer opening cavity, can form interference fits.

Locating part in bracket mobile and bracket retainer contact or site of action can also be at open-type Intracavity.Locating part is cylinder or polygonal body or a combination thereof, i.e. from opening opening of bracket retainer opening cavity Mouth side looks up, and its cross sectional shape is circular or polygon or circular and polygonal combination, and it can be with bow Silk groove side is intersected and is connected, it is also possible to be connected with archwire slot bottom surface.Enter for convenience of bracket mobile or leave Bracket retainer, can arrange draft angle on locating part.Preferably locating part is the circle being provided with draft angle Cylinder, cuboid, prismatoid or I-shaped body, i.e. from the opening direction opening bracket retainer opening cavity Seeing, its cross sectional shape is circle, rectangle, trapezoidal, I-shaped, and is provided with draft angle in the direction, Its connection orthogonal with arch wire groove, is i.e. middle-distant direction such as the length direction of arch wire groove, then locating part is gum Jaw to and (or) words to, connecting portion is side and (or) the bottom surface of arch wire groove.

Bracket mobile is responsible for being connected with arch wire, and after connection, arch wire is limited in bracket mobile, so that The resilience force obtaining arch wire can be conducted to bracket retainer accurately by bracket mobile, is finally applied to tooth On.Bracket mobile preferably can make the connected mode that the two relative position is fixing, example with the connected mode of arch wire As when bracket mobile and arch wire are after correct location positioning, use welding manner both to be fixed and connect, So that the scheme of rescuing of design can transfer to patient oral cavity accurately.

Further, bracket mobile is also provided with arch wire latch member on arch wire groove.General feelings Under condition, arch wire latch member is responsible for by arch wire Primary Location in bracket mobile, in some cases, and arch wire Latch member is responsible for being limited in fixing for arch wire in bracket mobile.Arch wire latch member can be arranged on arch wire The end of groove and (or) optional position, middle part, preferably two ends at arch wire groove arrange arch wire kayser Component, and be fixed together with arch wire groove.For strengthening the rigidity of structure of bracket mobile, Ke Yi The junction of arch wire groove and arch wire latch member is provided with reinforcement.

Arch wire latch member can be a kind of by external force formed plastic deformation thus clamp the rigid grasp of arch wire The tubular structure of component, preferably local openings, its cross sectional shape includes but not limited to

Arch wire latch member can also be to form elastic deformation when arch wire passes thus clamp the elastic clip of arch wire Tight component, preferably on the sidewall of arch wire groove relative to and a pair bouncing plate setting.

Connecting elements described in the utility model is to be arranged in bracket retainer and (or) bracket mobile Attachment structure or for ligation structure or a combination thereof.Connecting elements Neng Shi bracket mobile and bracket retainer Form detachable connection or assembling.

Connecting elements can be provided in the attachment structure in bracket retainer and (or) bracket mobile, bag Including but be not limited to interface arrangment, pin joint structure, self-locking structure or a combination thereof, can be one or more.

After interface arrangment should meet bracket mobile and the connection of bracket retainer or be assembled together, the most just only having Under the effect of the resilience force of abnormal arch wire, bracket mobile and bracket retainer do not separate, only in other external force Effect under, such as doctor applies external force, bracket mobile and bracket maintenance clinically and could separate.Enter One step, interface arrangment be arranged on bracket retainer and bracket mobile correspondence position agree with structure, Preferably arrange on the locating part correspondence position of bracket retainer and bracket mobile agrees with structure, holds in the palm simultaneously Can arrange groove on the locating part of groove mobile, above-mentioned groove can increase the structural elasticity of parts, convenient torr Groove mobile mounting and separating on bracket retainer.

Pin joint structure includes pin shaft structure, pin key structure or a combination thereof.In bracket retainer and bracket mobile Offer pin-and-hole or cotter way on correspondence position, can be one or more.When Clinical practice, use bearing pin Or bracket retainer and bracket activity are attached by pin key.

Self-locking structure is arranged on bracket retainer, including slip lid self-locking structure and renovate self-locking structure, its Including such as CN104434324A, CN102274081A, CN203710155U, CN204636588U, The patent documentations such as CN201578387U have a detailed description.

The knot for ligation that connecting elements can be provided in bracket retainer and (or) bracket mobile Structure.The described structure for ligation is piling strtucture, including boss, the bracket wing, hook etc., in conjunction with The ligation part such as steel ligature, rubber ring, can link together bracket mobile and bracket retainer.

Bracket body described in the utility model can also include a soft cushion, described soft cushion For the adhesive layer on bracket retainer and (or) bracket mobile or separate piece, be arranged on bracket retainer and On all or part of region that bracket mobile contacts.This soft cushion is based primarily upon examining of machining accuracy Consider and arrange.

According to clinical demand, it is also possible to arrange some additional structures, such as the bracket wing on bracket body, traction Hook etc..

Compared with prior art, this utility model has the advantage that as follows with effect:

This utility model is a kind of detachable orthodontic bracket, by bracket mobile by the change of prefabricated arch wire What shape amount was the most lossless is conducted to bracket body, then is conducted to tooth, it is achieved tooth recovers prefabricated along with arch wire Shape and shift in position, thus realize correcting, it can be said that be one based on abnormal correction system of the present utility model Plant brand-new abnormal correction system, be different from traditional abnormal correction system based on arch wire sliding mechanism.

Abnormal correction system based on arch wire sliding mechanism, needs to make between orthodontic bracket and arch wire as low friction as far as possible Power, in order to arch wire slides in orthodontic bracket arch wire groove, thus forms rectification mechanical system.And this reality Make arch wire there is no relative shift in position relative to orthodontic bracket with novel, correct mechanical system and entirely recovered by arch wire Preformed shape and formed.Relative to present fixed orthodontics, fix including lip side NITI Ω arch wire and tongue side Rescue, use abnormal correction system of the present utility model can be accurately controlled motion mode and the quantity of motion of tooth, The motion making tooth is carried out according to the scheme of design, too much intervenes without doctor mid-term correcting, and is correcting Later stage carries out the operations such as clearance compensation without doctor.Simultaneously by bracket retainer and bracket mobile Connecting elements is set, facilitates doctor's clinical manipulation, therefore greatly reduce working strength and the other behaviour of chair of doctor Make the time.

Accompanying drawing explanation

Fig. 1 be a kind of locating part be cylindrical detachable orthodontic bracket structural representation

Fig. 2 is the bracket retainer structural representation in Fig. 1

Fig. 3 is the bracket mobile structural representation in Fig. 1

Fig. 4 is the structural representation of the bracket base in Fig. 1

Fig. 5 be a kind of locating part be the detachable orthodontic bracket structural representation of cuboid

Fig. 6 is the bracket retainer in Fig. 5 and the structural representation of bracket base

Fig. 7 is the bracket mobile structural representation in Fig. 5

Fig. 8 be a kind of locating part be the bracket body construction schematic diagram of the detachable orthodontic bracket of prismatoid

Fig. 9 is the bracket retainer structural representation in Fig. 8

Figure 10 is the bracket mobile structural representation in Fig. 8

Figure 11 is the bracket of a kind of locating part detachable orthodontic bracket outside bracket retainer opening cavity Body construction schematic diagram

Figure 12 is the bracket retainer structural representation in Figure 11

Figure 13 is the bracket mobile structural representation in Figure 11

Figure 14 be a kind of locating part be the detachable orthodontic bracket of I-shaped body bracket body construction signal Figure

Figure 15 is the bracket retainer structural representation in Figure 14

Figure 16 is the bracket mobile structural representation in Figure 14

Detailed description of the invention

Enforcement of the present utility model is to further illustrate of the present utility model, rather than to this utility model The restriction of scope.

Embodiment 1: a kind of detachable orthodontic bracket, specifically locating part are cylindrical lingual orthodontic torr Groove, its structural representation as Figure 1-4, including bracket base 1, bracket body 2.Wherein bracket body 2 include bracket retainer 3, bracket mobile 4, and are arranged on bracket retainer 3 and bracket mobile 4 Fit-type interface arrangment 5 on corresponding contact position.Wherein it is provided with opening cavity 6 on bracket retainer 3, The hook 7 for ligation is set up at gum jaw；Arch wire groove 8 it is provided with, circle in bracket mobile 4 Cylinder locating part 9, and it is arranged on the rigid grasp component 10 at arch wire groove 8 two ends, and at cylinder Groove 11 is offered on locating part.Wherein the shape and size of opening cavity 6 are according to the shape of bracket mobile 4 Shape and corresponding size are arranged, it is possible to contain complete bracket mobile 4.By opening cavity 6, cylinder Body locating part 9, arch wire groove 8 and fit-type interface arrangment 5, bracket retainer 3 and bracket mobile 4 Interference fits can be formed so that after assembling, bracket retainer 3 is fixed with the relative position of bracket mobile 4.

In the present embodiment, bracket base 1 is the personalized customization that the form according to tooth is carried out, and is specially a left side The tongue side form of upper incisor.Bracket base 1 is arranged one for connecting the boss 12 of bracket retainer 2, The size of boss 12 is arranged according to the correspondingly-sized of bracket retainer 3.Bracket body 2 is standard component, is suitable for Mass production.Bracket base 1 can be fixedly connected by modes such as laser welding with bracket body 2.

On using, the arch wire of prefabricated shaping completes after relative position determines with orthodontic bracket, it is possible to pass through External force makes rigid grasp component 10 form plastic deformation, thus clamps arch wire so that arch wire and bracket mobile The relative position of 4 is fixed, and can be connected fixing further to arch wire and bracket mobile 4 by modes such as laser welding It is connected together.By fit-type interface arrangment 5, bracket retainer 3 and bracket mobile 4 are linked together, And on projective table type piling strtucture 7 steel ligature or rubber ring, movable to increase bracket retainer 3 and bracket The bonding strength of body 4.

By the way, bracket retainer 3 forms relative position with bracket mobile 4 and fixes, arch wire with Bracket mobile 4 is fixing to be connected, and the deformation resilience power of such prefabricated arch wire can be passed by bracket mobile 4 Pass bracket retainer 3, then pass to bracket base 1, be ultimately transferred to tooth, drive teeth training, from And straightening of teeth.

Pluck at arch wire and unload aspect, can be by removing steel ligature or rubber ring then by external force, arch wire is related Bracket mobile 4 separates from bracket retainer 3, simple and convenient.

Embodiment 2: a kind of detachable orthodontic bracket, specifically locating part are the lip side correction torr of cuboid Groove, its structural representation as illustrated in figs. 5-7, including bracket base, bracket body.Wherein bracket body bag Include bracket retainer, bracket mobile, and be arranged on bracket retainer and contact position with bracket mobile correspondence The fit-type interface arrangment put.Wherein bracket base and bracket retainer are formed in one.Bracket retainer On be provided with opening cavity, its shape and size are arranged according to the shape of bracket mobile and corresponding size, Complete bracket mobile can be contained.Arch wire groove and cuboid locating part 13 it is provided with in bracket mobile, The opening direction of arch wire groove is tongue to, the most just direction to bracket retainer.Set at the two ends of arch wire groove It is equipped with rigid grasp component, cuboid locating part 13 offers groove.By opening cavity, cuboid Locating part 13, arch wire groove and fit-type interface arrangment, bracket retainer and bracket mobile can be formed Cross cooperation so that after assembling, bracket retainer is fixed with the relative position of bracket mobile.

Embodiment 3: a kind of locating part is the bracket body of the detachable orthodontic bracket of prismatoid, its structure Schematic diagram as seen in figs. 8-10, including bracket retainer, bracket mobile, and is arranged on bracket retainer With the pin joint structure 14 on bracket mobile correspondence position.Opening cavity is offered, its shape on bracket retainer Shape and size are arranged according to shape and the corresponding size of bracket mobile, can contain complete bracket movable Body.Arch wire groove and prismatoid locating part 15 it is provided with in bracket mobile.Arrange at the two ends of arch wire groove There are two pairs of bouncing plates 16.Bouncing plate 16 can clamp arch wire by resilience force so that arch wire and bracket mobile Primary Location, it is simple to the operation of the fixing connected modes such as post laser welding.Trapezoidal locating part 15 from middle part to Bottom surface is provided with the draft angle that number of degrees are 10 degree.Pin joint structure 14 in the present embodiment is solid for running through bracket Position body and the pin-and-hole 17 of bracket mobile correspondence position, coordinate with bearing pin 18.By opening cavity, prismatoid Locating part 15, arch wire groove, and pin shaft connection structure 14, bracket retainer and bracket mobile can be formed Interference fits so that after assembling, bracket retainer is fixed with the relative position of bracket mobile.

Pin joint structure can be a bearing pin and a pin-and-hole, it is also possible to is many bearing pins and the pin of respective amount Hole, can also be simultaneously pin key and cotter way with the use of.

Embodiment 4: the torr of a kind of locating part detachable orthodontic bracket outside bracket retainer opening cavity Groove body, its structural representation as figs 11-13, including bracket retainer, bracket mobile, is arranged Slip lid self-locking structure 19 on bracket retainer.Arch wire groove it is provided with, at archwire slot in bracket mobile Ditch two ends are provided with open circles cylindricality limit body 20 and two pairs of bouncing plates, at arch wire groove and bracket retainer A soft cushion 21 it is provided with on contact surface.An opening cavity 22 containing part it is provided with on bracket retainer Bracket mobile.Opening cavity 22 is trench-type, and only two sidewalls, its shape and size are according to archwire slot The shape of ditch and corresponding size are arranged, and contain part bracket mobile.Open circles cylindricality locating part 20 Outside diameter is more than width and the height of opening cavity so that open circles cylindricality locating part can limit bracket and live Kinetoplast is the movement of middle-distant direction on bracket retainer.By opening cavity, open circles cylindricality locating part 20, Arch wire groove and slip lid self-locking structure 19, bracket retainer and bracket mobile can form transition configuration, make After must assembling, bracket retainer is fixed with the relative position of bracket mobile.

Embodiment 5: a kind of locating part is the bracket body of the detachable orthodontic bracket of I-shaped body, its knot Structure schematic diagram as illustrated in figures 14-16, including bracket retainer, bracket mobile, is arranged on bracket body Slidingtype pin key attachment structure 23.Arch wire groove it is provided with, at the sidewall of arch wire groove in bracket mobile It is connected with an I-shaped locating part 24 with bottom surface.An opening cavity containing portion it is provided with on bracket retainer Divide bracket mobile.Opening cavity is trench-type, only two sidewalls, and its shape and size are lived according to bracket The shape of the I-shaped locating part of kinetoplast and correspondingly-sized are arranged.Slidingtype pin key attachment structure 23 is by being arranged on Slidingtype pin key 25 on bracket retainer and be arranged in bracket retainer and bracket mobile run through pin Keyhole 26 forms.Slidingtype pin key 25 is provided with a dumb-bell shape through hole 27, in conjunction with a circular bearing pin 28, self-locking and the connection with bracket retainer can be realized.Offer a circular hole 29 on slidingtype pin key 25 simultaneously, Bracket retainer correspondence position offers a groove 30, it is simple to clinic carries out slide.By opening cavity, I-shaped locating part 24, and slidingtype pin key attachment structure 23, bracket retainer and bracket mobile can shapes Become transition configuration so that after assembling, bracket retainer is fixed with the relative position of bracket mobile.

Claims (21)

1. a detachable orthodontic bracket, including bracket base and bracket body, it is characterized in that: described bracket body includes bracket retainer and bracket mobile and connecting elements, bracket retainer is connected with bracket base, bracket mobile is connected with arch wire, and bracket retainer and bracket mobile can realize detachable connection by connecting elements.

Detachable orthodontic bracket the most according to claim 1, it is characterised in that: it is provided with, on described bracket retainer, the opening cavity that all or part of bracket mobile can be contained.

Detachable orthodontic bracket the most according to claim 2, it is characterised in that: the shape of described opening cavity is arranged according to the shape of bracket mobile, is interference fits with bracket mobile.

Detachable orthodontic bracket the most according to claim 1, it is characterised in that: being provided with arch wire groove and locating part in described bracket mobile, arch wire groove is connected with locating part.

Detachable orthodontic bracket the most according to claim 4, it is characterised in that: described locating part is arranged on the two ends of arch wire groove, and its size is more than the opening cavity of bracket retainer, and is not contained by the opening cavity of bracket retainer.

Detachable orthodontic bracket the most according to claim 4, it is characterised in that: described locating part is contained by the opening cavity on bracket retainer.

Detachable orthodontic bracket the most according to claim 6, it is characterized in that: described locating part cross sectional shape on the opening direction of bracket retainer opening cavity is circular or polygon or a combination thereof, and it is connected with arch wire groove sidewall and/or archwire slot ditch bottom surface.

Detachable orthodontic bracket the most according to claim 7, it is characterised in that: described locating part is provided with draft angle on the opening direction of the opening cavity of bracket retainer.

Detachable orthodontic bracket the most according to claim 6, it is characterized in that: described locating part is cylinder, cuboid, prismatoid, I-shaped body or a combination thereof, the opening direction of bracket retainer opening cavity is provided with draft angle, its connection orthogonal with arch wire groove, connecting portion is sidewall and/or the bottom surface of arch wire groove.

Detachable orthodontic bracket the most according to claim 4, it is characterised in that: described bracket mobile is provided with arch wire latch member on arch wire groove.

11. detachable orthodontic brackets according to claim 10, it is characterised in that: described arch wire latch member is arranged on the two ends of arch wire groove, and arch wire latch member is fixing with arch wire groove to be connected.

12. according to the detachable orthodontic bracket described in claim 10 or 11, it is characterised in that: described arch wire latch member be one by external force formed plastic deformation thus clamp the rigid grasp component of arch wire.

13. detachable orthodontic brackets according to claim 12, it is characterised in that: the described tubular structure that rigid grasp component is local openings, its cross sectional shape includes

14. according to the detachable orthodontic bracket described in claim 10 or 11, it is characterised in that: described arch wire latch member be one when arch wire passes formed elastic deformation thus clamp the resilient clipping members of arch wire.

15. detachable orthodontic brackets according to claim 14, it is characterised in that: described resilient clipping members is relative to a pair bouncing plate set on the sidewall of arch wire groove.

16. detachable orthodontic brackets according to claim 1, it is characterised in that: described connecting elements is to be arranged on the attachment structure in bracket retainer and/or bracket mobile or for the structure ligatured or a combination thereof.

17. detachable orthodontic brackets according to claim 16, it is characterised in that: described attachment structure is interface arrangment, pin joint structure, self-locking structure or a combination thereof.

18. detachable orthodontic brackets according to claim 17, it is characterised in that: described interface arrangment be arranged on bracket retainer contact position corresponding with the locating part of bracket mobile agree with structure；Described pin joint structure includes pin shaft structure, pin key structure or a combination thereof, can be one or more, offers pin-and-hole or cotter way on the correspondence position of bracket retainer and bracket mobile simultaneously；Described self-locking structure is arranged on bracket retainer.

19. detachable orthodontic brackets according to claim 18, it is characterized in that: described interface arrangment be arranged on bracket retainer contact position corresponding with the locating part of bracket mobile agree with structure, be provided with on the locating part of bracket mobile simultaneously increase locating part structural elasticity groove.

20. detachable orthodontic brackets according to claim 16, it is characterised in that: the described structure for ligation is piling strtucture, including boss, the bracket wing, hook.

21. detachable orthodontic brackets according to claim 1, it is characterized in that: described bracket body also includes soft cushion, this soft cushion is the adhesive layer in bracket retainer and/or bracket mobile or separate piece, is arranged on bracket retainer and on all or part of region that bracket mobile contacts.