CN114191123B

CN114191123B - Firmly positioned transfer clip, bracket mounting method and bracket transfer guide plate

Info

Publication number: CN114191123B
Application number: CN202111508158.6A
Authority: CN
Inventors: 陶刚强; 王犇; 陶明华
Original assignee: Hangzhou Youyi Shuchi Technology Co ltd
Current assignee: Hangzhou Youyi Shuchi Technology Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2023-08-15
Anticipated expiration: 2041-12-10
Also published as: CN114191123A

Abstract

The application discloses a firmly positioned transfer clip, a bracket mounting method and a bracket transfer guide plate, wherein the firmly positioned transfer clip is used for positioning a bracket on the surface of teeth and comprises a base, a bracket and a bracket, wherein the base is used for being connected with an occlusion block; a positioning plate extending from the base and disposed toward the tooth surface; the plurality of clamping arms are arranged in groups, each clamping arm extends from the positioning plate towards the tooth surface, each clamping arm is provided with an anti-falling hook at the tail end far away from the tooth surface, and the anti-falling hooks of the clamping arms in the same group are arranged in opposite directions; the base, the locating plate and the clamping arms surround to form a clamping space for restraining the bracket. The application improves the matching effect with the bracket through the structural optimization of the transfer clamp, and has simple assembly and stable positioning.

Description

Firmly positioned transfer clip, bracket mounting method and bracket transfer guide plate

Technical Field

The application relates to the field of dental orthodontics, in particular to a firmly positioned transfer clip, a bracket mounting method and a bracket transfer guide plate.

Background

In the orthodontic treatment process, an orthodontic bracket is fixed on a tooth surface, an arch wire passes through an arch wire groove (also called square wire groove) on the bracket, the arch wire is directly ligated with the bracket arch wire groove through a ligature rubber ring or a ligature wire, and the orthodontic force of the arch wire is transmitted to the tooth through the bracket, so that the tooth generates expected movement, and the aim of correcting the tooth is fulfilled. The brackets have strict requirements for the attachment location on the teeth, as this is an important factor affecting the corrective effect. Traditional orthodontic bracket bonding basically carries out the manual location according to doctor's clinical experience to direction, the angle that the bracket was kept still can not pinpoint, and the operation is complicated, consumes a large amount of clinical time of seeing a doctor simultaneously, and the patient is cooperation doctor operation moreover, can keep opening a mouthful state for a long time, leads to the patient to easily tired. And traditional bracket bonding relies on doctor's experience, and the condition of judging error or bracket drop easily appears, and the bracket just needs to bond again this moment, and patient's facing also can produce certain adhesive and remain. And when the bracket is bonded, the using amount of the adhesive is also finished by the bonding experience of a doctor, if the doctor performs bracket position correction on the tooth surface of the patient, excessive adhesive can be generated on the tooth surface of the patient, the clinician takes time and energy to remove the excessive adhesive, the treatment process is time-consuming and complex, and the clinical operation skill requirement of the doctor is extremely high.

Thus, bracket transfer guides (i.e., orthodontic bracket transfer bond locators) have been developed in the marketplace to overcome the above-described problems. The bracket transfer guide plate is common to have the forms such as pressed film type, wax mode, integrative frame type, 3D print guide formula, 3D print transfer formula, generally including being used for with the inside tissue cooperation location of patient's oral cavity bite the board and set up the transfer clamp on bite the board, transfer clamp is used for with bracket location to the space gesture of predetermineeing in order to satisfy bracket location's needs. Along with the development of the technology, the existing bracket transfer guide plate is mostly manufactured by adopting photosensitive resin 3D printing.

The inventor has found that most photosensitive resins retain a certain elasticity after the conventional photo-curing process is finished, and that the bracket transfer guide after the bracket assembly is completed can harden over time to cause some structural failure due to deformation of part of the interference fit, particularly the transfer clip part, which causes deterioration of the retention effect of the bracket body and further causes deviation of the bonding position from the predetermined position, affecting the final therapeutic effect.

Disclosure of Invention

To solve the above technical problems, the present application discloses a firmly positioned transfer clip for positioning brackets on tooth surfaces, comprising

The base is used for being connected with the occlusion block;

a positioning plate extending from the base and disposed toward the tooth surface;

the plurality of clamping arms are arranged in groups, each clamping arm extends from the positioning plate towards the tooth surface, each clamping arm is provided with an anti-falling hook at the tail end far away from the tooth surface, and the anti-falling hooks of the clamping arms in the same group are arranged in opposite directions;

the base, the locating plate and the clamping arms surround to form a clamping space for restraining the bracket.

The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions.

Optionally, the bracket is provided with a tie wing, the bracket with transfer under the clamp bonding state, the top surface of bracket with the locating plate is leaned on, the arm clamp from the lip of tie wing extends to the tooth of tie wing is to the side, anticreep colludes with the tooth of tie wing is to the side block.

Optionally, in a combined state of the bracket and the transfer clip, at least a part of the bracket and the base are abutted against each other.

Optionally, each clamping arm has an expanded state and a corresponding clamping state, wherein the expanded state and the corresponding clamping state are far away from each other under the external force, and in the clamping state, the anti-falling hook prevents the bracket from falling out of the clamping space; the end face of the anti-drop hook, which is opposite to the positioning plate, is provided with a driving inclined plane for driving the clamping arm to enter an expanding state.

Optionally, the moment required by the bracket to overcome the constraint of the anti-disengaging hook of the clamping arm is a dismantling moment, the clamping arm at least comprises a jaw clamping arm and a gingival clamping arm, and the dismantling moment corresponding to the jaw clamping arm is smaller than the dismantling moment corresponding to the gingival clamping arm.

Optionally, the protrusion distance of the anti-unhooking hook of the gingival clamping arm is S1, the protrusion distance of the anti-unhooking hook of the jaw clamping arm is S2, and S1 is greater than or equal to S2; and the anti-falling hook of the jaw clamping arm is provided with a falling cambered surface.

Optionally, from the positioning plate, the jaw-to-gripping arm extends a distance less than the gingival-to-gripping arm.

Optionally, a plurality of deformation release notches are formed on the positioning plate, and at least one deformation release notch is located between the two clamping arms.

Optionally, the positioning plate includes a central portion and branch portions diverging from the central portion to the periphery, and each clamping arm is respectively disposed on the corresponding branch portion; or (b)

The positioning plate includes a central portion and a surrounding portion disposed around the central portion, each of the clamp arms being disposed on the surrounding portion.

Optionally, the whole locating plate is X-shaped or W-shaped or I-shaped, and each clamping arm is respectively positioned at the outer edge of the locating plate or at the end part of each branch shape.

Optionally, an observation hole penetrating through the positioning plate is formed in the positioning plate, and the central axis of the bracket is exposed to the observation hole in a combined state of the bracket and the transfer clamp.

Optionally, the clamping arms of different groups are connected with each other through a supporting rod, and two ends of the supporting rod are respectively connected to one side, close to the positioning plate, of the corresponding clamping arm; or two ends of the supporting rod are respectively connected near the anti-drop hooks of the corresponding clamping arms.

The application also discloses a bracket mounting method of the firmly positioned transfer clamp, which is used for assembling the bracket with the tie wings into the transfer clamp in the technical scheme, and comprises the following steps:

aligning the top surface of the bracket with the locating plate;

taking the plane of the base as a rotation plane, and rotating the bracket to a first direction by a preset angle;

positioning one side ligature wing of the bracket into the clamping space until the ligature wing is clamped with the corresponding anti-falling hook;

and taking the plane of the base as a rotation plane, rotating the bracket by a preset angle in the opposite direction of the first direction, so that the ligature wing at the other side of the bracket is extruded with the corresponding anti-falling hook to enter the clamping space.

The application also discloses a stably positioned bracket transfer guide plate, which comprises a snap-in block and a plurality of transfer clamps in the technical scheme.

Optionally, the lingual side of the occlusion block is provided with an extension part extending to the lingual side, an end part of the extension part, which is far away from the occlusion block, is a force application part, and a distance between the force application part and the incisal edge of the tooth is a dismantling force arm.

Optionally, the extension is whole U-shaped, and opening one end with the interlock piece is connected, and the other end cooperates with the tooth, is the empty space in the U-shaped opening.

According to the technical scheme disclosed by the application, the matching effect with the bracket is improved through the structural optimization of the transfer clamp, the positioning of the bracket is avoided mainly through interference fit in the prior art, the positioning deviation caused by hardening of materials is fundamentally avoided, and meanwhile, the advantages of simplicity in assembly and stability in positioning are brought.

Specific advantageous technical effects will be further explained in the detailed description in connection with specific structures or steps.

Drawings

FIG. 1 is a schematic view of a bracket transfer guide in a first embodiment;

FIG. 2 is a schematic view of the engagement of the transfer clip and bracket in a first embodiment;

FIG. 3 is a schematic illustration of the snap-off and bracket engagement of the transfer clip of FIG. 2;

FIG. 4 is a schematic view of the transfer clip and bracket of FIG. 2 in a mating top view;

FIG. 5 is a schematic view of the transfer clip of FIG. 2;

FIG. 6 is a schematic view of another view of the transfer clip of FIG. 5;

FIG. 7 is a schematic view of a transfer clip according to a second embodiment;

FIG. 8 is a schematic view of another view of the transfer clip of FIG. 7;

FIG. 9 is a schematic view of the transfer clip and bracket engagement of FIG. 7;

FIG. 10 is a schematic view of a bracket transfer guide in a third embodiment;

FIG. 11 is an enlarged schematic view of the incisor portion of the bracket transfer guide of FIG. 10;

FIG. 12 is a schematic view of the engagement of a bite plate with teeth without a recess;

FIG. 13 is a schematic view of the bracket transfer guide of FIG. 11 mated with a tooth;

FIG. 14 is a schematic view showing the engagement of a bracket transfer guide with teeth in a fourth embodiment;

FIG. 15 is a schematic view of a fifth embodiment of a transfer clip and bracket engagement;

FIG. 16 is a schematic view of the transfer clip of FIG. 15;

FIG. 17 is a schematic view of another view of the transfer clip of FIG. 16;

FIG. 18 is a schematic view of a sixth embodiment of a transfer clip and bracket engagement;

FIG. 19 is a schematic view of the transfer clip of FIG. 18;

FIG. 20 is a schematic view of another view of the transfer clip of FIG. 19;

FIG. 21 is a schematic view of a seventh embodiment of a transfer clip and bracket engagement;

FIG. 22 is a schematic view of the transfer clip of FIG. 21;

FIG. 23 is a schematic view of another view of the transfer clip of FIG. 22;

FIG. 24 is a schematic view of an anti-disengagement mechanism of a gingival clamping arm;

fig. 25 is a schematic view of an anti-disengaging hook structure of the jaw clamping arm.

Reference numerals in the drawings are described as follows:

1. a transfer clip; 11. a base; 12. a positioning plate; 121. deformation releasing notch; 122. an observation hole; 13. a clamping arm; 131. an anti-falling hook; 132. a driving inclined plane; 133. is separated from the cambered surface; 14. a clamping space; 15. a support rod;

2. a bracket; 21. ligature wings;

3. teeth;

4. a bite block; 41. an extension; 42. an empty region; 43. and an adjusting block.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 2 to 9, the present application discloses a firmly positioned transfer clip 1 for positioning a bracket 2 onto a tooth 3 surface, comprising

A base 11 for connection with the bite block 4;

a positioning plate 12 extending from the base 11 and disposed toward the surface of the tooth 3;

the plurality of clamping arms 13 are arranged in groups, each clamping arm 13 extends from the positioning plate 12 towards the surface of the tooth 3, each clamping arm 13 is provided with an anti-falling hook 131 at the tail end far away from the surface of the tooth 3, and the anti-falling hooks 131 of the clamping arms 13 in the same group are arranged in opposite directions;

the base 11, the positioning plate 12, and the clamp arm 13 enclose a clamp space 14 that constrains the bracket 2.

The clamping space 14 may be configured to resemble the clamping effect of the prior art, or may be configured to be a lifting effect, i.e. the surrounding of the base 11, the positioning plate 12, and the clamping arm 13 mainly enables positioning rather than positioning of the bracket 2 by clamping. However, it will be appreciated that the clamping space 14 may create a slight clamping force on the bracket 2 regardless of the particular product being set, which is primarily a matter of industrial precision and efficiency. According to the technical scheme disclosed by the application, the matching effect with the bracket 2 is improved through the structural optimization of the transfer clamp 1, the positioning of the bracket 2 mainly through interference fit in the prior art is avoided, the positioning deviation caused by material hardening is fundamentally avoided, and meanwhile, the advantages of simplicity in assembly and stability in positioning are brought.

In the embodiment shown in fig. 2 to 4, the ligating wing 21 is provided on the bracket 2, the top surface of the bracket 2 is abutted against the positioning plate 12 when the bracket 2 is combined with the transfer clip 1, the clamping arm 13 extends from the labial side of the ligating wing 21 to the toothed side of the ligating wing 21, and the trip preventing hook 131 is engaged with the toothed side of the ligating wing 21.

In the present embodiment, the anti-slip hook 131 engaged with the tooth-wise side surface of the tie wing 21 is in a hanging state, and a plurality of (4 in the drawing) tie wings 21 of the bracket 2 are hung. As can be seen in the figures, the gripping arms 13 are independent and have a certain elasticity. In a particular product, the inside of the clamp arm 13 may provide a slight interference fit to the tie wings 21 of the bracket 2. The bracket 2 can be positioned further by other means than the clamping arms 13. Referring to the drawings, in the state in which the bracket 2 is coupled to the transfer clip 1, at least a portion of the bracket 2 is abutted against the base 11. The advantage of this arrangement is that the clamping arm 13 can achieve complete control of the six degrees of freedom of the bracket 2.

In the drawings, one side of the tie wings 21 is abutted against each other at the base 11. By the jaw contact of the transfer clip 1 and the bracket 2, the auxiliary positioning is performed on the direction of the bracket 2, and the auxiliary positioning is performed when the bracket 2 is installed.

As will be appreciated from the foregoing, the clamping arms 13 need to be deformed to a certain extent, and in reference to an embodiment, each clamping arm 13 has an expanded state in which the clamping arms are separated from each other by an external force and a corresponding clamping state in which the anti-disengaging hook 131 prevents the bracket 2 from being disengaged from the clamping space 14; the end surface of the anti-drop hook 131, which is away from the positioning plate 12, is provided with a driving inclined surface 132 for driving the clamping arm 13 to be in an expanded state. The arrangement of the driving inclined plane 132 can more easily realize the assembly of the bracket 2 and the technical effect of easy scratching; removal of the opposing brackets 2 after bonding may be disengaged from the retention of the brackets 2 by twisting the snap plate to force the clamp arms 13 to fracture or enter an expanded state. In addition to the above-mentioned direct removal, reference may be made to an embodiment in which the moment required for the bracket to overcome the constraint of the retaining arm against the trip is a removal moment, the retaining arm at least comprising a jaw-wise retaining arm and a gingival-wise retaining arm, the removal moment corresponding to the jaw-wise retaining arm being smaller than the removal moment corresponding to the gingival-wise retaining arm. The advantage of this arrangement is that it provides different fixing effects for different sets of clamping arms, providing an adjustable structural basis for the removal of the hand. In particular, in the removal mode mentioned below, the bracket is preferentially pulled out of the jaw to the clamping arm, so that the removal moment can be reduced while the retention effect is ensured, and the condition of bracket bonding failure caused by removal is avoided.

The adjustment of the removal moment can be realized in various modes such as material adjustment, size and thickness adjustment, structural change and the like of the clamping arm. For example, referring to the embodiment shown in fig. 24 to 25, the protrusion distance of the gingival retraction hook 131 of the clamping arm is S1, and the protrusion distance of the jaw retraction hook 131 of the clamping arm is S2, where S1 is greater than or equal to S2; and the anti-falling hook 131 of the jaw clamping arm is provided with a falling-out cambered surface 133. The setting specifically becomes the jaw to the shorter and slick and sly of the anticreep of centre gripping arm collude 131, compares in other modification, and setting up simple structure in this embodiment changes little, to holding in the palm groove adaptability good, easily demolishs after the clinical bonding.

Independent of the trip prevention hook, in one embodiment, the jaw extends from the locating plate to the clamping arm less than the gingiva extends to the clamping arm. The dismantling moment can be controlled by adjusting the extension length of the clamping arm.

In order to further improve the adaptability of the transfer clip 1 to the bracket 2, it can be seen with reference to the drawings that the positioning plate 12 is provided with a plurality of deformation release notches 121, at least one of which is located between the two clamping arms 13. The deformation release notch 121 can improve the elasticity of the positioning plate 12 to improve the adaptability. The deformation release notch 121 may be provided separately or integrally with the positioning plate 12.

From another point of view, the locating plate can have the following design ideas:

the positioning plate comprises a central part and branch parts which diverge from the central part to the periphery, and each clamping arm is respectively arranged on the corresponding branch part (for example, fig. 2 to 9, 15 to 17 and 21 to 23); or (b)

The positioning plate includes a central portion and a surrounding portion disposed around the central portion, each of the clamping arms being disposed on the surrounding portion (e.g., fig. 18-20).

The above-mentioned different settings can all be understood as the deformation of deformation release breach, and core aim at improves the deformability of locating plate to improve the adaptability to different brackets, different cases and emergency.

In terms of the specific shape, referring to fig. 2 to 9, the positioning plate 12 is generally X-shaped and each clamping arm 13 is located at an end of the X-shape. Referring to fig. 15 to 17, the positioning plate 12 is generally W-shaped and each of the clamp arms 13 is located at an end of the W-shape, respectively. Referring to fig. 21 to 23, the positioning plate 12 is generally in the shape of an i and each of the holding arms 13 is located at an end of the i. Referring to fig. 18 to 20, the positioning plate 12 is generally in a shape of a Chinese character 'kou' and each clamping arm 13 is located at an outer edge of the Chinese character 'kou'. Those skilled in the art can adapt the product to various shapes based on the description above, and thus the specific shape set should not be construed as limiting the scope of the present embodiments.

In addition to the strain relief notch 121, the positioning plate 12 may further be provided with other components to enhance the adapting capability to the bracket 2, and in the embodiment shown in fig. 2, the positioning plate 12 is provided with a through-hole 122, and in the state that the bracket 2 is combined with the transfer clip 1, the central axis of the bracket 2 is exposed to the hole 122. The viewing aperture 122 presents a hollow design of the central axis of the top of the transfer clip 1. In a specific dimension, the width of the observation hole 122 is 0.3MM to 1MM, the observation hole 122 can be used for visually adhering to the central axis, the observation hole 122 and the deformation release structure can further improve the overall elasticity of the positioning plate 12, and when the mesh bottom of the bracket 2 is attached to the tooth surface and slightly deviates from the expected rotation, the engagement between the occlusion block 4 and the tooth 3 can be completely achieved through the overall elastic deformation.

The clamping arms 13 can be independently arranged with reference to the above description, and in the embodiment shown in fig. 7 to 9, the clamping arms 13 of different groups are connected with each other through supporting rods 15, and two ends of each supporting rod 15 are respectively connected to one side of the corresponding clamping arm 13 close to the positioning plate 12; or the two ends of the supporting rod 15 are respectively connected near the anti-falling hook 131 of the corresponding clamping arm 13. The support rods 15 may be disposed between the clamping arms 13, or may be disposed between the clamping arms 13 and the base 11, and the support rods 15 between different positions may be disposed in alignment with each other, or may be disposed in a staggered manner. The support bar 15 can independently adjust the mechanical properties of the clamping arm 13 compared to the positioning plate 12 and the clamping arm 13. The mechanical properties are mainly represented by the fact that the support rods 15 assist in constraining the deformation in the direction between the clamping arms 13. More importantly, the supporting rod 15 can achieve the auxiliary printing effect of the transfer clamp 1 in the 3D printing process, and prevent printing failure caused by suspension of the tail end of the clamping arm 13 during 3D printing, so that the production effect and the product quality are improved.

In combination with the above, the present application improves the positioning effect on the bracket 2 by optimizing the structure of the transfer clip 1, and correspondingly, the mounting method of the bracket 2 can also be optimized correspondingly, and the present application also discloses a method for mounting the bracket 2 of the transfer clip 1 with stable positioning, which is used for assembling the bracket 2 with the tie wings 21 into the transfer clip 1 in the above technical scheme, and comprises:

aligning the top surface of the bracket 2 with the positioning plate 12;

taking the plane of the base 11 as a rotation plane, and rotating the bracket 2 to a preset angle in a first direction;

positioning one side ligating wing 21 of the bracket 2 into the clamping space 14 until the ligating wing is clamped with the corresponding anti-falling hook 131;

the bracket 2 is rotated by a preset angle in the opposite direction of the first direction by taking the plane of the base 11 as the rotation plane, so that the ligature wing 21 on the other side of the bracket 2 is extruded with the corresponding anti-falling hook 131 to enter the clamping space 14.

In the specific embodiment, the jaw-direction ligating wings 21 of the bracket 2 are pre-screwed into one part of the clamping arms 13, and then the other part of the clamping arms 13 are pressed to deform and then are installed, and the specific pressing sequence can be expressed as above about the rotation direction of the bracket 2, or can be set so that the jaw-direction ligating wings 21 of the bracket 2 are pre-screwed into the gingival-direction clamping arms 13, and then the jaw-direction clamping arms 13 are pressed to deform and then are installed. Naturally, the tie wings 21 may also press the whole of the clamping arms 13 to deform outward in the expanded state, and spring back to the clamped state after being put in.

Accordingly, the separation method of the bracket 2 can be referred to the related records of the chinese patent document with publication number CN 111991108A, and will not be described herein.

Based on the above description, it is easy to understand that the application also discloses a firmly positioned bracket 2 transfer guide plate, which comprises a snap block 4 and a plurality of transfer clips 1 in the technical proposal.

The connection between the engagement block 4 and the transfer clip 1 can be directly achieved through the base 11, and can also be achieved through the connection of the adjusting block 43 as described with reference to fig. 13, and the adjusting block 43 can adjust the overall spatial posture of the transfer clip 1 relative to the engagement block 4 more freely, so that a better bracket 2 positioning effect is provided.

In a specific structural arrangement of the bite block 4, the bite block 4 is illustratively embedded in the labial portion of about 1mm to 4mm and the lingual portion is embedded in the labial portion of about 0mm to 1mm. In order to further enhance the separation effect of the blocks 4 to be engaged, the lingual side of the blocks 4 is provided with an extension 41 extending to the lingual side. The end of the extension 41 away from the bite block 4 is a biasing portion, and the distance between the biasing portion and the incisor edge of the tooth is a removal arm L1. The provision of the extension 41 has the advantage of providing a greater removal torque for the bite block, thereby facilitating removal, the provision being based on the direction of removal of the bite block being cooperatively provided. Specifically, the U-shaped bottom of the extension 41 is spaced from the cutting edge of the tooth 3 by a removal moment arm L1, L1 being 4mm to 15mm.

At the same time, the extension 41 extends from the lingual side of the bite block 4 to the lingual side by a predetermined distance and then returns to the labial side. After the extension 41 is folded back, it is attached to the lingual side of the tooth 3, thereby forming a positioning effect. The extension 41 is generally U-shaped, with one end of the opening connected to the bite block 4 and the other end engaging the tooth 3, and with an empty region 42 in the U-shaped opening. Referring to fig. 12, there is shown a schematic view of the bite plate without the hollow area 42, during the separation process, particularly the separation process of the incisors, the bite plate and the teeth 3 may be pressed against each other, thereby affecting the separation. In the embodiment shown with reference to fig. 13, the recess 42 is used to provide room for movement of the teeth 3 when the bite plate is separated, i.e. at least a portion of the teeth 3 enter the recess 42 during separation of the bite plate from the teeth 3. The height H1 of the empty area 42 is 1.5 mm-4 mm, and the space for rotating relative to the teeth 3 is reserved when the occlusal block 4 is removed.

Of course, the designs for easy removal and providing a movable space for tooth movement can be combined with each other, and the extension 41 can be provided with a separate force application part after providing enough empty areas 42, as shown in fig. 14, so as to meet the use requirements in different situations.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. When technical features of different embodiments are embodied in the same drawing, the drawing can be regarded as a combination of the embodiments concerned also being disclosed at the same time.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.

Claims

1. A firmly positioned transfer clip for positioning a bracket onto a tooth surface, comprising

The base is used for being connected with the occlusion block;

the base, the positioning plate and the clamping arms are surrounded to form a clamping space for restraining the bracket; the moment required by the bracket to overcome the constraint of the anti-disengaging hook of the clamping arm is a dismantling moment, the clamping arm at least comprises a jaw clamping arm and a gingiva clamping arm, and the dismantling moment corresponding to the jaw clamping arm is smaller than the dismantling moment corresponding to the gingiva clamping arm.

2. The firmly positioned transfer clip of claim 1, wherein the bracket has tie wings thereon, wherein in the engaged state of the bracket with the transfer clip, the top surface of the bracket abuts the positioning plate, and wherein the clamping arms extend from the labial sides of the tie wings to the dental sides of the tie wings, and wherein the anti-release hooks engage with the dental sides of the tie wings.

3. The firmly positioned transfer clip of claim 1 wherein at least a portion of the bracket and the base rest against each other in the engaged state of the bracket and the transfer clip.

4. The firmly positioned transfer clip of claim 1 wherein each clamping arm has an expanded state in which it is moved away from each other by an external force and a corresponding clamping state in which the anti-snag prevents the bracket from backing out of the clamping space; the end face of the anti-drop hook, which is opposite to the positioning plate, is provided with a driving inclined plane for driving the clamping arm to enter an expanding state.

5. The firmly positioned transfer clip of claim 1, wherein the gingival clamping arm has an anti-unhooking protrusion distance S1, the jaw clamping arm has an anti-unhooking protrusion distance S2, and S1 is greater than or equal to S2; and the anti-falling hook of the jaw clamping arm is provided with a falling cambered surface.

6. The firmly positioned transfer clip of claim 1 wherein the positioning plate is provided with a plurality of deformation release notches and at least one of the notches is positioned between the two clamping arms.

7. The firmly positioned transfer clip of claim 1, wherein the positioning plate includes a central portion and branch portions diverging from the central portion to the periphery, each clamping arm being disposed on a corresponding branch portion, respectively; or (b)

8. The firmly positioned transfer clip of claim 1 wherein the positioning plate is generally X-shaped or W-shaped or i-shaped or slot-shaped, each gripping arm being located at the outer edge of the positioning plate or at the end of each branch shape, respectively.

9. The firmly positioned transfer clip of claim 1, wherein the positioning plate is provided with a through-arranged viewing hole, and the central axis of the bracket is exposed to the viewing hole when the bracket is combined with the transfer clip.

10. The firmly positioned transfer clip according to claim 1, wherein the clamping arms of different groups are connected with each other through a supporting rod, and two ends of the supporting rod are respectively connected to one side, close to the positioning plate, of the corresponding clamping arm; or two ends of the supporting rod are respectively connected near the anti-drop hooks of the corresponding clamping arms.

11. A method of securely positioning a bracket mounting of a transfer clip for use in assembling a bracket with tie wings into a transfer clip according to any one of claims 1 to 10, comprising:

aligning the top surface of the bracket with the locating plate;

12. A firmly positioned bracket transfer guide comprising a snap-in block and a plurality of transfer clips according to any one of claims 1 to 10.

13. The firmly positioned bracket transfer guide of claim 12, wherein the lingual side of the bite block is provided with an extension extending lingually, the end of the extension distal from the bite block being a force applying portion, the force applying portion being a removal arm from the incisal edge of the tooth.

14. The securely positioned bracket transfer guide of claim 13, wherein the extension is generally U-shaped with one end of the opening connected to the bite block and the other end engaged with the tooth, the U-shape being open

The mouth is an empty area.