阅读说明：本技术 一种正畸托槽的数字化***及其制作方法及其使用方法及一种联接件 (Digital positioner of orthodontic bracket, manufacturing method and using method thereof and connecting piece ) 是由 钟庭进 余健文 吉利 于 2019-09-24 设计创作，主要内容包括：本发明公开了一种正畸托槽的数字化定位器及其制作方法及其使用方法及一种联接件,数字化定位器包括包覆限位件和至少一个联接件,该包覆限位件用于自牙齿的咬合面向牙龈包覆至少一颗牙齿,该包覆限位件的唇侧面或舌侧面的边沿轮廓预留并指示托槽预定粘接在牙面上的位置；该联接件用于可拆卸连接至少两个托槽,并将该托槽在该包覆限位件的限位作用下准确落于所对应的牙面上。本发明的数字化定位器中,包覆限位件和联接件配合使用,以包覆限位件为基点,联接件为调准,双重定位,减少粘接定位的误差。定位准确,则可获得最优的矫治效果。(The invention discloses a digital positioner of an orthodontic bracket, a manufacturing method and a using method thereof as well as a connecting piece, wherein the digital positioner comprises a coating limit piece and at least one connecting piece, the coating limit piece is used for coating at least one tooth from the occlusal surface of the tooth to the gum, and the edge contour of the labial side surface or the lingual side surface of the coating limit piece 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. In the digital positioner, the cladding limiting part and the connecting part are matched for use, the cladding limiting part is used as a base point, the connecting part is used for alignment, double positioning is realized, and the error of bonding positioning is reduced. The positioning is accurate, and the optimal correction effect can be obtained.)

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.

11. A manufacturing method of a digital locator of an orthodontic bracket is characterized by comprising 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 of any one of claims 1-10 according to the tooth model of step 4);

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

12. The method for making the digital locator for orthodontic brackets as set forth in claim 11, wherein: the generation mode of the cladding limiting part is that a first surface of the cladding limiting part is cut out on the digital dentition model by using a space curve, and a second surface is generated by thickening outwards.

13. The use method of the digital locator of the orthodontic bracket is characterized by comprising the following steps:

one) coating the coated position limiter of the digital positioner prepared in claim 11 on the corresponding teeth of the patient;

two) the digital locator made in claim 11 can be used to connect the bracket main body on the connector in a detachable way, so that the connector can carry more than two brackets at the same time;

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.

14. A connecting piece for a digital positioner of an orthodontic bracket is characterized in that: the 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.

Technical Field

The invention relates to the orthodontic industry, in particular to a digital locator for orthodontic brackets, a manufacturing method and a using method thereof.

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