CN210990826U - Digital locator and coupling piece of orthodontic bracket - Google Patents

Abstract

The utility model discloses a digital positioner of orthodontic bracket and a manufacturing method and a using method thereof as well as a connecting piece, the digital positioner comprises a cladding limiting part and at least one connecting piece, the cladding limiting part is used for cladding at least one tooth from the occlusal surface of the tooth to the gum, the edge contour of the labial side surface or the lingual side surface of the cladding limiting part is reserved and indicates the position of the bracket which is bonded on the tooth surface in advance; the connecting piece is used for detachably connecting at least two brackets and accurately placing the brackets on the corresponding tooth surfaces under the limiting action of the cladding limiting piece. The utility model discloses an among the digital locator, cladding locating part and connector cooperation are used to the cladding locating part is the basic point, and the connector is the alignment, and dual location reduces the error of bonding location. The positioning is accurate, and the optimal correction effect can be obtained.

Description

Digital locator and coupling piece of orthodontic bracket

Technical Field

The invention relates to the orthodontic industry, in particular to a digital positioner for an orthodontic bracket.

Background

In the orthodontic correction process, the bonding position of the bracket has great influence on the treatment effect, inaccurate positioning can lead to poor treatment effect of patients, and the correction period is prolonged.

The existing bonding technology comprises direct bonding and indirect bonding, the direct bonding mainly depends on the clinical experience of doctors to position the bracket, and the bracket is observed by naked eyes, so the error is large.

The indirect bonding is to bond the bracket on the plaster model firstly, then utilize the diaphragm for the vacuum forming machine to suppress a template, become the indirect bonding tray after pruning, peel off the bracket from the plaster model and handle the back and place to the tray in the recess that is formed by vacuum forming, during clinical use, utilize the tray to bond a plurality of brackets on the tooth surface simultaneously, remove the tray after the bonding is accomplished. However, the existing bracket indirect bonding technology has the disadvantages of complicated manufacturing process, high difficulty, long manufacturing period and low efficiency, and in each step, manual errors can be generated, so that the final bracket positioning cannot achieve the expected effect.

Accordingly, a bonding technique has recently appeared. The positioning cap which extends to the gum and covers the teeth is arranged on the occlusal surface of the teeth, the positioning cap does not completely cover the tooth surface, but reserves partial tooth surface of the bracket to be bonded, and the positioning cap provides positioning benchmark reference for bonding the bracket for a doctor. However, this technique has two problems:

firstly, in order to reduce the processing difficulty, the tray is simplified into a positioning cap, and the positioning of a doctor can be quickened by the positioning cap, but the assistance of the tray is reduced, and the doctor needs to adhere the bracket to the tooth surface of a patient one by one.

Secondly, there is a deviation. The error generated in the processing process of the positioning cap is removed, the positioning cap is used as a soft body and is embodied in the perfect matching of the occlusal surface of the tooth, the positioning cap has a certain deformable space, and in the process of tight matching of the positioning cap and the tooth, the deformation of the positioning cap generates a certain positioning deviation caused by non-processing. Moreover, unlike the positioning tray, which is used for full-position bracket anastomosis, the positioning cap and the bracket are only partially butted, and certain deviation may exist in the angle and position of the bracket during bonding. These deviations are usually corrected during the process of individual bracket bonding by the physician, but also add to the operational difficulties for the physician, extend the time on hand and burden the patient physically.

Disclosure of Invention

Aiming at the technical problems, the invention provides the digital positioner of the orthodontic bracket, the manufacturing method and the using method thereof, the connecting piece with the auxiliary function is added, the positioning is accurate, and the removal is easy.

The technical scheme adopted by the invention for solving the technical problem is as follows: a digital locator of orthodontic bracket comprises a cladding limit part and at least one connecting piece, wherein the cladding limit part is used for cladding at least one tooth from the occlusal surface of the tooth to the gum, and the edge contour of the labial side or the lingual side of the cladding limit part is reserved and indicates the position of the bracket which is bonded on the tooth surface in advance; the connecting piece is used for detachably connecting at least two brackets and accurately placing the brackets on the corresponding tooth surfaces under the limiting action of the cladding limiting piece.

Compared with the prior art, the method has the following positive effects:

1. in the digital positioner, the cladding limiting piece is in matched butt joint with the tooth, so that a vacancy is provided and an indication is provided for a bonding position preset on the tooth surface of the bracket, namely the limiting function is realized; the connecting piece is in matched butt joint with the bracket, the mutual position relation of the bracket on the connecting piece corresponds to the position relation of a preset bracket positioning point, the coating limiting piece and the connecting piece are matched for use, the coating limiting piece is used as a base point, the connecting piece is used for alignment, double positioning is realized, the error of bonding positioning is reduced, and deviation is avoided. The positioning is accurate, and the optimal correction effect can be obtained.

2. More than two brackets are coupled on the connecting piece and are bonded at the same time or almost at the same time, so that manual operation is reduced, and efficiency is improved.

3. The brackets on the connecting piece and the cladding limiting piece can be in one-to-one correspondence, or the brackets are more than the cladding limiting piece. In the latter case, the use of the cladding limiting member is relatively reduced, thereby realizing the reduction of the processing time of the cladding limiting member and the reduction of the installation time and the removal time of the cladding limiting member.

Specifically, the connecting piece comprises a body and at least two clamping protrusions arranged on the body, and the clamping protrusions are used for coupling the bracket. The body may be rod-shaped or band-shaped according to a narrow space in the oral cavity. Through set up the card protruding on the body, fix bracket detachably on the connector, make things convenient for bonding and removal.

Further, the body is a curved bar, the clamping protrusion is a plug block, and the plug block is used for plugging the arch wire groove of the bracket. The rod shape is suitable for the narrow environment in the oral cavity. And the chock corresponds the archwire groove, and the joint is firm, avoids increasing edges and corners moreover, reduces the damage to the soft tissue inside the oral cavity.

Specifically, the cladding limiting part comprises more than two cladding limiting units, and the two cladding limiting units of adjacent tooth positions are mutually independent or connected in the near-far direction. The cladding limiting units can be connected and can be mutually independent, and individuation and variability in the bonding process are reflected.

Further, each wrapping limiting unit wraps a tooth from the occlusal surface of the tooth to the gum. The cladding limiting units correspond to the teeth one by one, but brackets on the connecting piece do not need to correspond to the cladding limiting units one by one, so that individuation and variability in the bonding process are reflected.

Specifically, the edge of the labial side or lingual side of each covered limiting unit is provided with a notch for matching the outer contour of the base plate or body of the bracket intended to be bonded to the tooth.

Furthermore, each cladding limiting unit is in a cap shape, and the side wall of the inner cavity of each cladding limiting unit is matched with the shape of the tooth surface.

Further, the cladding limiting part and/or the connecting piece are printed in a 3D mode, and the radian of the connecting piece is matched with the radian of the tooth surface formed by more than two corresponding teeth and the positioning points of the brackets on the tooth surface. The invention is preferably 3D printed, and the cladding limiters and couplers of the invention can also be obtained in other personalized customization ways.

Specifically, at least two jamming bulges are a group of correspondingly coupled one supporting grooves, and the group of jamming bulges clamp the main body or the bottom plate of the supporting groove in the proximal-distal direction or the gingival direction.

Specifically, the edge of the notch is in a dotted or centripetal grid shape. The disassembly of the cladding limiting unit is convenient.

In order to solve the technical problems, the invention provides a method for manufacturing a digital locator of an orthodontic bracket, which comprises the following steps:

1) converting the bracket into a digital model;

2) acquiring a digital dentition model of a patient;

3) setting a bracket positioning point according to tooth data;

4) positioning the digital model of the bracket on the tooth surface according to the positioning point of the bracket;

5) designing the digital positioner according to the tooth model in the step 4);

6)3D printing the digital positioner of the step 5).

Compared with the prior art, the manufacturing method of the digital positioner has the advantages of simple manufacturing process, short manufacturing period, high efficiency and effective reduction of errors.

The generation mode of the coating limiting part is that a first surface of the coating limiting part is cut out on the digital dentition model by using a space curve, and a second surface is generated by thickening outwards.

In order to solve the technical problems, the invention provides a using method of a digital locator of an orthodontic bracket, which comprises the following steps:

firstly), coating the coating limit part of the digital positioner prepared by the method on the corresponding tooth of a patient;

secondly), the digital locator manufactured by the method can be detachably connected with the main body of the bracket on the connecting piece, so that the connecting piece can simultaneously carry more than two brackets;

thirdly), coating adhesive on the net bottom of the bracket;

fourthly) positioning by utilizing the edge profile of the lip side surface or the tongue side surface of the cladding limit part, and accurately placing more than two brackets on the corresponding tooth surfaces through the connecting piece;

fifthly), separating the coupling element from the bracket;

sixthly) removing the cladding limiting piece.

The connecting piece for the digital locator of the orthodontic bracket comprises a body and at least two clamping bulges arranged on the body, wherein the clamping bulges are used for coupling the bracket; the connecting piece is used for detachably connecting the main bodies of at least two brackets and accurately placing the brackets on the corresponding tooth surfaces under the limiting action of the cladding limiting piece. The connecting piece is suitable for products with similar structures and functions to the coating positioning piece on the market.

The invention is further illustrated by the following figures and examples.

Drawings

Fig. 1 is a schematic structural diagram of a cladding limiting member according to an embodiment.

Fig. 2 is a schematic view of the cladding limiter of the embodiment cladding the tooth.

Fig. 3 is a schematic structural view of the coupling of the embodiment.

FIG. 4 is a schematic view of a coupling and bracket coupling of an embodiment.

Fig. 5 is a schematic view of the cladding limiter and the coupling piece in use.

Figure 6 is a variety of forms of indentations that wrap the spacing unit.

The device comprises 10-cladding limiting units, 13-notches, 132-notches at virtual point type edges, 134-notches at grid type edges, 20-connecting pieces, 25-curved rods, 27-plugs, 30-brackets and 32-bottom plates.

Detailed Description

Examples

As shown in fig. 1, the digital locator of the embodiment is suitable for labial orthodontic brackets, and for lingual orthodontic brackets, it can be adjusted according to the common knowledge in the art.

The digital positioner of the embodiment comprises a cladding limiting part and a plurality of coupling pieces 20, wherein the cladding limiting part is used for cladding teeth from the occlusal surface of the teeth to the gingiva, and the coupling pieces 20 are used for detachably connecting the main bodies of at least two brackets 30 and accurately placing the brackets 30 on the corresponding tooth surfaces under the limiting action of the cladding limiting part.

Specifically, the wrapping position-limiting member includes a plurality of wrapping position-limiting units 10, each wrapping position-limiting unit 10 corresponds to a tooth, the plurality of wrapping position-limiting units 10 may be independent from each other and may be connected to each other, in this embodiment, the wrapping position-limiting units 10 of three adjacent mandibular teeth are connected in the proximal and distal directions.

Each of the wrapping limiting units 10 is in a 3D printed cap shape, and the wrapping limiting units 10 wrap the teeth from the occlusal surface of the teeth to the gum. The coating part of the coating limiting unit 10 on the side of the tooth lip occupies 1/3-1/2 of the area of the side of the tooth lip. The design of cladding the spacing unit 10 half cladding is easily dismantled when not influencing the positioning effect. The inner side wall formed by the covering and limiting unit 10 matches the shape of the tooth surface, specifically, matches the occlusal surface of the tooth, the upper part of the labial surface, the upper part of the lingual surface and the gap between the tongue and the adjacent tooth in the mesial and distal directions.

The labial margin of each of the covering and restraining units 10 is concavely formed from the gingiva into the occlusal surface of the tooth to form a notch 13, and the notch 13 is matched with the outer contour of the base plate 32 of the bracket 30 which is intended to be bonded to the tooth. In the embodiment, the notch 13 is preferably matched with only the upper half part of the bottom plate 32, and the part of the cladding limiting unit 10, which is connected with the bracket 30, is less, so that the cladding limiting unit is easy to remove while the positioning effect is not influenced.

This coupling member 20 includes a body and a plurality of jamming protrusions, and the body and the jamming protrusions are integrally formed by 3D printing. The body is a curved rod body, and the radian of the curved rod 25 is set corresponding to the radian of the working tooth surface. The clamping protrusion is a plug 27, the plugs 27 are arranged on the body in a row, the plugs 27 correspond to each bracket 30 one by one, and the plugs 27 are plugged in the arch wire grooves of the brackets 30 so as to carry a plurality of brackets 30 simultaneously. Preferably, a plurality of coupling members 20 are provided, wherein one coupling member 20 carries three brackets 30 corresponding to the wrap-around spacing unit 10 of the three adjacent mandibular teeth.

The position of the plug 27 on the body is calculated by software so that the bracket 30 coupled to the coupler 20 corresponds to its intended drop point on the tooth surface. And the shape of the plug 27 is designed by software, the plug 27 projecting outwardly from the body, the longer the projection, the further the bracket 30 is from the body of the coupling 20 and vice versa. By adjusting the protruding length of the plug 27, different teeth can be bonded in a positional relationship with each other.

Specifically, the method for manufacturing the digital locator of the embodiment comprises the following steps:

1) converting each bracket 30 into a digital model;

2) acquiring a digital dentition model of a patient;

3) automatically forming bracket positioning points according to tooth data by using tooth arrangement software, and manually and finely adjusting the bracket positioning points if needed;

4) positioning the digital model of the bracket 30 on the tooth surface according to the bracket positioning point by using tooth arrangement software;

5) designing a coating limiting part and a connecting part 20 in a computer according to the tooth model in the step 4), wherein the coating limiting part is generated in a mode that a first surface of a positioning cap is cut out on the digital dentition model by using a space curve, a second surface is generated by thickening outwards, and the shape of a notch 13 of a coating limiting unit 10, the radian of a curved rod 25 of the connecting part 20 and the position and the shape of a plug block 27 are arranged in combination with a bracket positioning point;

6) the 3D printing covers the limiter and the link 20.

Specifically, the use method of the digital locator of the embodiment comprises the following steps:

firstly), treating the tooth surface of a patient, and then coating the coated limiting part prepared by the method on the tooth of the patient to obviously expose the gap 13; as can be seen in figure 2 of the drawings,

secondly), the chock block 27 of the coupling element 20 manufactured by the method is coupled with the corresponding arch wire groove of the bracket 30, so that the coupling element 20 simultaneously carries three brackets 30; as can be seen in figure 4 of the drawings,

thirdly) coating adhesive on the bottom of the net of each bracket 30;

fourthly) the bottom plates 32 of the brackets 30 are aligned with the notches 13 falling into the corresponding cladding limiting units 10, and the three brackets 30 are simultaneously and accurately fallen on the respective corresponding tooth surfaces through the connecting pieces 20; as can be seen in figure 5 of the drawings,

five) separating the coupling 20 from the bracket 30;

sixthly), repeating the fourth step and the fifth step), completing the bonding of the brackets 30 of other tooth positions, and removing the cladding limiting part after the bonding is completed.

A plurality of cladding limiting units can be mutually independent or mutually connected. The connection mode can be various, the cladding limiting units of adjacent tooth positions are connected in the mesial-distal direction, the cladding limiting units of the same lower jaw or the same upper jaw of non-adjacent tooth positions are connected, the connected part can be arranged on the occlusal surface or the lingual surface of other teeth of the same lower jaw or the same upper jaw, the connected part is arranged on the lingual surface, the bonded bracket is a labial surface bracket groove, and conversely, the connected part is arranged on the labial surface. By arranging a proper connecting piece, the digital positioner is also suitable for simultaneously bonding brackets of different jaws.

In an embodiment, the coupling carries three brackets corresponding to three clad check units. In other embodiments, the three covering and limiting units except the middle one can be independent from each other or connected with each other in a manner similar to that described above. By means of the head and the tail wrapping limiting units, the connecting piece can simultaneously adhere the three brackets to the tooth surface. Therefore, the brackets carried by the connecting piece are not in one-to-one correspondence with the cladding limiting unit, and the dual positioning effect is still achieved. In other embodiments, only one covering and limiting unit corresponds to one connecting piece with three brackets, and the technical scheme of the invention also belongs to.

In the embodiment, the body of the coupling is a curved rod body, and in other embodiments, the body can be a strip or a grid sheet, which is in a shape conforming to the use in a narrow space in the oral cavity.

In other embodiments, the edge of the notch can be adjusted to be in a virtual point shape or a centripetal grid shape, and the outer contour of the bracket bottom plate can be depicted. The edge of the gap is made into a virtual point shape or a grid strip shape, so that the removal of the cladding limiting unit is more convenient.

In an embodiment, the snap of the coupling is a plug disposed in the archwire slot of the bracket. In other embodiments, the tabs may couple the gripping locations of the brackets or the bracket wings. The clamping projections can be grouped into a group, one group is correspondingly coupled with one bracket, and the group of the clamping projections clamps the main body or the bottom plate of the bracket in the proximal-distal direction or the gingival direction.

In an embodiment, the edge of the gap covering the spacing unit is contoured to match the base plate of the bracket, thereby spacing the bracket. In other embodiments, the edge of the gap of the cladding limiting unit is matched with the main body of the bracket in a contour mode so as to achieve the purpose of limiting.

The present invention is not limited to the above-described embodiments, and various changes and modifications of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.

Claims (10)

1. The utility model provides a digital locator of orthodontic bracket which characterized in that: the tooth-covering device comprises a covering limiting part and at least one connecting piece, wherein the covering limiting part is used for covering at least one tooth from the occlusal surface of the tooth to the gum, and the edge contour of the labial side or the lingual side of the covering limiting part is reserved and indicates the position of the bracket which is preset to be bonded on the tooth surface; the connecting piece is used for detachably connecting at least two brackets and accurately placing the brackets on the corresponding tooth surfaces under the limiting action of the cladding limiting piece.

2. The digital locator of orthodontic brackets of claim 1, wherein: the connector comprises a body and at least two clamping protrusions arranged on the body, and the clamping protrusions are used for coupling the bracket.

3. The digital locator of orthodontic brackets of claim 2, wherein: the body is a curved bar, the clamping protrusion is a plug block, and the plug block is used for plugging the arch wire groove of the bracket.

4. The digital locator of orthodontic brackets of claim 1, wherein: the cladding limiting part comprises more than two cladding limiting units which are mutually independent or mutually connected.

5. The digital locator of orthodontic brackets of claim 4, wherein: each of the wrapping limiting units wraps one tooth from the occlusal surface of the tooth to the gingiva in a half wrapping manner.

6. The digital locator of orthodontic brackets of claim 4, wherein: the edge of the labial side or lingual side of each cladding limiting unit is provided with a notch which is used for matching the outer contour of the base plate or the main body of the bracket which is preset to be bonded on the tooth.

7. The digital locator of orthodontic brackets of claim 4, wherein: each cladding limiting unit is in a cap shape, and the side wall of an inner cavity of each cladding limiting unit is matched with the shape of a tooth surface.

8. The digital locator of orthodontic brackets of claim 1, wherein: the cladding limiting part and/or the connecting piece are printed in a 3D mode, and the radian of the connecting piece is matched with the radian of the tooth surface formed by more than two corresponding teeth and the positioning point of the bracket on the tooth surface.

9. The digital locator of orthodontic brackets of claim 2, wherein: at least two clamping bulges are a group of correspondingly coupled supporting grooves, and the group of clamping bulges clamps the main body or the bottom plate of the supporting groove in the proximal-distal direction or the gingival direction.

10. The digital locator of orthodontic brackets of claim 6, wherein: the edge of the gap is in a virtual dot shape or a centripetal grid strip shape.

Images