CN113749799B - Method for producing elastic element for orthodontic and method for producing orthodontic appliance - Google Patents

Abstract

The invention discloses a production method of an elastic piece for orthodontic and a production method of an orthodontic appliance, wherein the production method of the elastic piece comprises the following steps: designing a plurality of elastic piece standard components, wherein the two ends of each elastic piece standard component are respectively a first connecting end and a second connecting end, the first connecting ends are used for being connected with a fixing component, the fixing component is used for being adhered to the tooth surface of a patient, the second connecting ends are used for being connected with an arched component, the elastic piece standard components are provided with bending angles, the bending angles are included angles formed by planes of the first connecting ends and the second connecting ends, and at least one of the width, the length and the bending angles of each elastic piece standard component is different; manufacturing an elastic piece standard part; the invention simplifies the shape and the size design of the elastic piece to control the bending angle, the length and the width of the elastic piece, changes the custom production of the elastic piece into mass production standard pieces, and then selects the elastic piece matched with the needs of each patient from the standard pieces for use, thereby reducing the production cost of the elastic piece and improving the production efficiency.

Description

Method for producing elastic element for orthodontic and method for producing orthodontic appliance

Technical Field

The invention relates to the technical field of orthodontic appliances, in particular to a production method of an elastic part for orthodontic and a production method of an orthodontic appliance.

Background

At present, orthodontists use orthodontic appliances to treat patients aiming at the problems of teeth or faces such as crowding, bucks, uneven tooth arrangement, malocclusion and the like, and orthodontic appliances such as brackets, buccal tubes and the like are main components of orthodontic therapeutic appliances. In conventional orthodontic treatment, an orthodontist attaches a bracket to a patient's tooth and places an archwire into the archwire slot of the bracket, through which the archwire applies corrective forces to the tooth to move the tooth into the correct position. Orthodontic appliances are typically made of metal and are applied to the teeth to affect aesthetics, so some patients choose to apply orthodontic appliances to the lingual side of the teeth for aesthetic purposes during treatment.

Patent application CN109069229a discloses a tooth repositioning system and method, which comprises an arch-shaped member, a plurality of elastic pieces and a fixing member, wherein the fixing member is used for being stuck on teeth of a patient, one end of each elastic piece is connected with the fixing member, one end of each elastic piece is connected with the arch-shaped member, the fixing member is supported by the arch-shaped member, the elastic pieces have a memory function and are designed according to a model obtained after virtual tooth arrangement of original dentition model data of the patient, so that each fixing member can drive teeth to be aligned under the action force of restoring the original shape of the elastic pieces, and correction is realized. As can be seen from fig. 7 of the specification of this application, the inclination angles of the lingual sides of the teeth of a person are different, that is, the inclination angles of the sides of the teeth facing the tongue are different, and individual differences exist for each patient, so that the orthodontic appliances on the lingual sides are personalized customized products currently, and the elastic member in this application is firstly cut into a designed two-dimensional shape through a flexible flat sheet material and then bent into a desired three-dimensional shape, specifically, see the specifications [ 0082 ], [ 0189 ], [ 0220 ], [ 0236 ] of this application. Since the elastic member is made of an elastic material, if the elastic member is manufactured by the method described in the above application, there is a problem in that the elastic member is made of a material having a memory function, and because the elastic member itself has a memory function and is difficult to manufacture into different shapes, the current manufacturing process is to cut first and then perform heat treatment processing to deform the elastic member, and the current lingual orthodontic appliance is a personalized customized product, and the elastic member of each patient corresponding to each tooth is manufactured after the customized design, and the elastic member of each patient needs to be subjected to die opening and processing, so that the elastic member of the whole orthodontic appliance has a plurality of manufacturing procedures and high cost.

The method for mass production of the elastic piece can greatly reduce the production cost of the lingual orthodontic appliance and is more beneficial to market popularization and application of the lingual orthodontic appliance.

Disclosure of Invention

The invention aims at the technical problems and provides a production method of an elastic piece for orthodontic treatment and a production method of an orthodontic appliance, which are low in production cost.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a method of producing an elastic member for orthodontic use, comprising the steps of:

designing a plurality of elastic piece standard components, wherein two ends of each elastic piece standard component are respectively a first connecting end and a second connecting end, the first connecting ends are used for being connected with a fixed component, the second connecting ends are used for being connected with an arched component, the elastic piece standard components are provided with bending angles, namely the bending angles are included angles formed by a plane where the first connecting ends are located and a plane where the second connecting ends are located, and at least one of the width, the length and the bending angles of each elastic piece standard component is different;

and manufacturing the elastic piece standard component.

Most orthodontic appliances today are custom products for matching the dental condition of the patient, as are the resilient members in CN109069229 a. The customized product is designed according to the shape and the oral condition of each tooth of each patient, the shape of each customized product is different because the customized product is designed according to each patient, and the customized product is low in production efficiency, large in opening modulus, complex in working procedure and high in production cost because the product produced by each set of die can only be used for the specific tooth position of a specific patient and cannot be produced in batches. In orthodontic correction, teeth are driven to shift by using the memory performance of an elastic piece, the memory performance of the elastic piece is influenced by a common production process in order to keep the memory function of the elastic piece, and the conventional production method at present is that each elastic piece is designed to obtain a design scheme firstly, then the design scheme is unfolded to form a two-dimensional structure, the two-dimensional structure is cut in the production process, and then the two-dimensional structure is bent, placed in a mold and shaped, and subjected to heat treatment to obtain a final shape. Therefore, the customized elastic piece needs to be opened for each elastic piece, the elastic pieces of each tooth position of each patient are different, only one mold needs to be opened for each tooth for one patient, and the production process of the elastic piece is complex, so that the cost for customizing the elastic piece is high, and the production efficiency is low. Through the research of a large number of cases, although the lingual tooth surfaces and the soft and hard tissues of each patient are greatly different, the shape and the size of the elastic piece of each tooth position in the current market are different, but the shape of the elastic piece can be matched and connected with the arched component and the fixed component which are suitable for each patient only by making the elastic piece into different bending angles and different lengths, and the correction force of the elastic piece can be adjusted by modifying the width and the length of the elastic piece. According to the invention, the personalized elastic piece is produced by designing and manufacturing batch elastic piece standard pieces instead of custom-made, the design is not specific to a specific patient, but a set of whole standard pieces which can adapt to the oral conditions of all patients is designed, and when correction is carried out, the elastic pieces which are suitable for the bending angles, the bending widths and the bending lengths of the specific patient can be selected from the standard pieces for use in an orthodontic appliance. The standard component is a component standardized in all aspects such as a structure, a size, a mark and the like, and the structure, the shape and the size are all designed in advance and manufactured directly according to the established standard. Firstly, the customized production of the elastic piece is changed into standard piece production, the die opening is not needed for each tooth position of each patient, the die opening is carried out for all standard pieces at one time, the repeated die opening cost is reduced, the single production is changed into batch production, the production efficiency is greatly improved, and the production cost is further reduced; secondly, the elastic pieces with the same angle and the same length have different deflection curves with different widths, and when the deflection of the elastic pieces needs to be adjusted in different stages in the whole correction process of a patient, the elastic pieces are only required to be replaced by the elastic pieces with the same length, the same bending angle and different widths, so that the die opening times and the production cost are further reduced; thirdly, the spring piece is customized according to the specific shape of the lingual side of the oral cavity of each patient, the shape of the spring piece can be finely designed and adjusted according to the condition of the patient, but the effect of the fine design and adjustment is not great, on one hand, the actually produced elastic piece is not completely attached to the lingual side of the patient, on the other hand, the elastic piece is not required to be completely attached in the actual use process, and the elastic piece is designed into standard pieces with different bending angles and different lengths, so that the design requirement is simplified, and the actual correction requirement can be completely met.

In some preferred embodiments, the step of designing a plurality of said spring standard comprises: the bending angle difference of the two elastic piece standard parts with the closest bending angle is designed to be 0.5-5 degrees. Specifically, it may be 0.5 °, 0.6 °, 0.7 °, 0.8 °, 0.9 °, 1 °, 1.2 °, 1.4 °, 1.5 °, 1.6 °, 1.8 °, 2 °, 2.5 °, 3 °, 3.5 °, 4 °, 4.5 °, 5 °, and the like. The bending angle of the elastic member standard may be set to 100 ° -180 °, specifically, 100 °, 110 °, 115 °, 120 °, 125 °, 130 °, 135 °, 140 °, 145 °, 150 °, 155 °, 160 °, 165 °, 170 °, 175 °, 180 °. The specific angle can be designed according to the common demand angle of different regional patients.

In some preferred embodiments, the step of designing a plurality of said spring standard comprises: the difference in length between the two elastic piece standard parts with the closest length is designed to be 0.1-2mm. Specifically, it may be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm. The length of the elastic member standard may be set to 2mm to 20mm. Specifically, it may be 2mm, 2.5mm, 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, 5.5 mm, 6.0 mm, 6.5 mm, 7.0 mm, 7.5 mm, 8.0 mm, 8.5 mm, 9.0 mm, 9.5 mm, 10.0 mm, 10.5 mm, 11.0 mm, 11.5 mm, 12.0 mm, 12.5 mm, 13.0 mm, 13.5 mm, 14.0 mm, 14.5 mm, 15.0 mm, 15.5 mm, 16.0 mm, 16.5 mm, 17.0 mm, 17.5 mm, 18.0 mm, 18.5 mm, 19.0 mm, 19.5 mm, 20.0 mm, etc.

In some preferred embodiments, the step of designing a plurality of said spring standard comprises: the width difference of the two elastic piece standard parts with the closest width is designed to be 0.1-2mm. Specifically, it may be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm. The width of the elastic member standard may be set to 1.5mm to 15mm. Specifically, it may be 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, 5.5 mm, 6.0 mm, 6.5 mm, 7.0 mm, 7.5 mm, 8.0 mm, 8.5 mm, 9.0 mm, 9.5 mm, 10.0 mm, 10.5 mm, 11.0 mm, 11.5 mm, 12.0 mm, 12.5 mm, 13.0 mm, 13.5 mm, 14.0 mm, 14.5 mm, 15.0 and the like.

In some preferred embodiments, the step of designing a plurality of said spring standard comprises: and designing the bending angles of the elastic piece standard parts into an arithmetic progression. Namely, the bending angle difference of the elastic piece standard component closest to each two bending angles is the same.

In some preferred embodiments, the step of designing a plurality of said spring standard comprises: the length of each elastic piece standard component is designed into an arithmetic progression. I.e. the length difference of the elastic element standard piece closest to each other is the same.

In some preferred embodiments, the step of designing a plurality of said spring standard comprises: the width of each elastic piece standard component is designed into an equal difference array. I.e. the width difference between the two closest spring element standard elements is the same.

In some preferred embodiments, the specific steps of manufacturing the spring standard include:

manufacturing a mold for the shape and structure of each elastic piece standard component;

bending the strip-shaped elastic material, and placing the bent strip-shaped elastic material into the die;

and (5) heat treatment, and shaping the elastic piece standard component.

The above provides only one process for manufacturing the elastic member, and in other embodiments, other methods, such as injection molding using elastic polymer materials, may be used.

The invention also provides a production method of the orthodontic appliance, which comprises the following steps:

producing the elastic member standard member by using the production method of the elastic member for orthodontic treatment as described above;

establishing a virtual standard part library of the elastic piece standard parts according to the size and shape of each elastic piece standard part;

virtual tooth arrangement is carried out according to the original dentition model data of the patient, and ideal dentition model data after correction is obtained;

determining the configuration and location of the fixation member and the arch member on ideal dentition model data;

selecting the elastic piece standard parts which can be matched with the fixed component and the arched component from the virtual standard part library;

the securing member and the arcuate member are manufactured.

The order of the steps in the above production method is not limited, and each manufacturer may arrange the order of the steps according to the actual situation, and even some steps may be performed synchronously or in reverse order. The preparation method of the orthodontic appliance changes the production mode of complete customization of the traditional orthodontic appliance, changes personalized customization production elastic parts into mass production of standard parts, reduces the production cost, improves the production efficiency, and does not influence the use of the orthodontic appliance. The construction and location of the fixture and arch members may be determined in two ways, one is to custom design the construction and location of the fixture and arch members based on the desired dentition model data, the other may be to manufacture a collection of standards for the fixture and arch members, create a virtual standard library based on their standards, and then select the fixture and arch members from the virtual standard library of fixtures and the virtual standard library of arch members that are capable of matching the desired dentition model data, both methods being possible. Because the fixing member and the arcuate member are both rigid materials, such as stainless steel, even with a personalized customization process, the process complexity is low and the difference between the customization cost and the standard production cost is relatively small.

In some preferred embodiments, the method of producing an orthodontic appliance further comprises: according to the selected second connecting end of the elastic piece standard component, a connecting groove matched with the second connecting end is designed on the arched component. The arcuate member is provided with a connecting groove, and the second connecting end of the elastic piece is inserted into the connecting groove to realize the connection of the two. A boolean operation may be used to subtract the second connection end from the arcuate member to provide a connection slot on the arcuate member that mates with the second connection end.

Compared with the prior art, the method has the following positive effects: the invention provides a production method of an elastic piece for orthodontic and a production method of an orthodontic appliance, wherein the production method of the elastic piece comprises the following steps: designing a plurality of elastic piece standard components, wherein two ends of each elastic piece standard component are respectively a first connecting end and a second connecting end, the first connecting ends are used for being connected with a fixing component, the fixing component is used for being adhered to the tooth surface of a patient, the second connecting ends are used for being connected with an arched component, the elastic piece standard components are provided with bending angles, namely the bending angles are included angles formed by planes of the first connecting ends and the second connecting ends, and at least one of the width, the length and the bending angles of each elastic piece standard component is different; and manufacturing the elastic piece standard component. The invention changes the custom production of the elastic piece into batch production of standard pieces, then selects the elastic piece matched with the needs of each patient from the standard pieces for use, and mainly simplifies the shape and the size design of the elastic piece into control of the bending angle, the length and the width of the elastic piece, and obtains the elastic piece matched with the needs of each patient by adjusting the three indexes; the production method greatly reduces the production cost of the elastic piece and the whole orthodontic appliance and also greatly improves the production efficiency.

The invention is further described below with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic view of a tooth's reference system.

Fig. 2 is a perspective view of an orthodontic appliance of example 1.

Fig. 3 is a schematic structural view of the arcuate member of embodiment 1.

Fig. 4 is a front view of the elastic member in embodiment 1.

Fig. 5 is a left side view of the elastic member in embodiment 1.

Fig. 6 is a top view of the elastic member in embodiment 1.

Fig. 7 is a left side view of the elastic member in embodiment 2.

Fig. 8 is a front view of the elastic member in embodiment 2.

Detailed Description

In the following structural description, unless otherwise indicated, reference systems to the mandibular teeth are required to describe the adhesive positioning device. Thus, as used herein, terms such as labial, lingual, mesial, distal, tooth end, gingival and tooth end used to describe the adhesive positioning device are relative to a selected frame of reference. However, embodiments of the present invention are not limited to the chosen frame of reference and the terminology described, as the adhesive positioning device may be used with other teeth and other orientations within the mouth. For example, adhesive positioning devices may also be coupled to lingual surfaces of teeth and fall within the scope of the invention. Those skilled in the art will appreciate that where there is a variation in the frame of reference, the descriptive terms used herein may not be directly referenced. However, embodiments of the present invention are intended to be independent of the position and orientation within the oral cavity and the relative terms used to describe the embodiments are merely provided with an explicit description of the embodiments in the drawings. Likewise, the relative terms labial, lingual, mesial, distal, gingival and gingival end should in no way limit the invention to a particular location or orientation.

It should be noted that the related terms labial, lingual, mesial, distal, tooth end, gingival end and tooth end are industry terms of orthodontic treatment. Referring to fig. 1, taking a certain tooth in the right mandibular area as an example, the surface of the tooth may be roughly divided into six faces. The face of the tooth which is meshed with the maxillary tooth is a tooth end face or a tooth surface, and the end of the tooth surface is called a tooth end; the face of the tooth connected with the attached gingival tissue is the gingival face, and the end of the gingival face is the gingival end; the tooth surface is opposite to the gum, and the direction in which the tooth surface is formed with the gum is also called the gum direction. The face of the tooth facing the lip is a labial face, the face on which the labial face is located is called labial face, the face of the tooth facing the tongue is a lingual face, the face on which the lingual face is located is called lingual face, the labial face and the lingual face are opposed to each other, and the direction in which the labial face and the lingual face are formed is also called labial-lingual direction. In general, the labial-lingual direction and lingual-labial direction refer to directions in both directions, while the labial-lingual direction refers to a unidirectional direction from the lips to the tongue, and the lingual-labial direction refers to a unidirectional direction from the tongue to the lips. The two surfaces of the tooth which are in contact with the adjacent tooth are a mesial surface and a distal surface, respectively, which are different in that the distance from the middle is far and near, the mesial surface is close to the central incisor, the distal surface is far from the central incisor, and the directions of the two surfaces are also called as mesial-distal direction or mesial-distal direction.

Example 1:

the present invention provides a method of producing an elastic member in an orthodontic appliance as shown in fig. 2 and a method of producing such an orthodontic appliance. Referring to fig. 2, the orthodontic appliance is composed of a spring standard 10, a fixing member 20, and an arch member 30. Referring to fig. 3 to 6, fig. 3 is a schematic structural view of an arch member of embodiment 1, fig. 4 is a front view of an elastic member of embodiment 1, fig. 5 is a left side view of the elastic member of embodiment 1, fig. 6 is a plan view of the elastic member of embodiment 1, and the elastic member standard 10 has a first connection end 11 and a second connection end 12 at both ends, respectively, the first connection end 11 being used for connection with the fixing member 20, the fixing member 20 being used for adhesion to a dental surface of a patient, and the second connection end 12 being used for connection with an arch member 30, and the arch member 30 being used for supporting each of the elastic member standards 10. The elastic member standard 10 sets different bending angles for matching with the lingual environments of the teeth, and the bending angles are included angles formed by the plane of the first connecting end 11 and the plane of the second connecting end 12. The method for producing the elastic piece standard 10 comprises the steps of designing a plurality of elastic piece standard parts, wherein at least one of the width, the length and the bending angle of each elastic piece standard part 10 is different; the bending angle difference of the two elastic member standards 10 having the closest bending angle is set to 0.5 ° -5 °, specifically, may be 0.5 °, 0.6 °, 0.7 °, 0.8 °, 0.9 °, 1 °, 1.2 °, 1.4 °, 1.5 °, 1.6 °, 1.8 °, 2 °, 2.5 °, 3 °, 3.5 °, 4 °, 4.5 °, 5 °, and the like. The bending angle of the elastic member standard may be set to 100 ° -180 °, specifically, 100 °, 110 °, 115 °, 120 °, 125 °, 130 °, 135 °, 140 °, 145 °, 150 °, 155 °, 160 °, 165 °, 170 °, 175 °, 180 °. The specific angle may be designed according to the general demand angle of the patients in different regions, in this embodiment, the bending angles of the elastic member standard components 10 are designed into an equi-differential series, and the difference is 0.1 °; the middle section 14 connecting the first connection end 11 and the connection end 12 may be in the same plane with one of the first connection end 11 and the connection end 12, the middle section 14 may also be in a spiral shape, a spiral central axis of the middle section is in the same plane with one of the first connection end 11 and the connection end 12, or the middle section 14 extends along an arc curved surface, and in this embodiment, the middle section 14 is in the same plane with the second connection end 12; the width difference of the two elastic member standard pieces 10 closest in width is set to 0.1-2mm, specifically, may be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, and the width of each elastic member standard piece 10 may be set to 1.5mm-15mm, and in this embodiment, the width difference is set to 0.1mm in an arithmetic progression; the difference in length between the two elastic member standards 10 closest in length is set to 0.1-2mm. Specifically, it may be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm. The length of the elastic member standard part may be set to 2mm to 20mm, and in this embodiment, the length of each elastic member standard part 10 is designed to be an equal difference series, the length difference is set to 0.1mm, and the length range may be designed to be 2 to 5mm or 12mm to 20mm. The second step is to manufacture the spring standard. The specific steps for manufacturing the elastic piece standard component comprise: manufacturing a mold for the shape and structure of each of the elastic member standards 10; bending the strip-shaped elastic material, and placing the bent strip-shaped elastic material into the die; and (5) carrying out heat treatment to shape the elastic piece standard part 10.

Most of the existing orthodontic appliances are customized products for matching tooth states of patients, elastic pieces in CN109069229A are also customized products, because the elastic pieces are used for keeping memory functions, teeth move under the action of restoring force of the elastic pieces, the production method of the elastic pieces is different from that of common elastic pieces, each elastic piece is designed firstly and then is unfolded into a two-dimensional structure, the two-dimensional structure is cut out firstly in the production process, then the elastic pieces are bent and placed into a die for shaping and heat treatment to obtain a final shape, so that the die opening is needed for each customized product, the elastic pieces of each tooth position of each patient are different, the production process of the elastic pieces is complicated, the cost of the customized production is high, and the production efficiency is low. Through the research and development of a large number of cases, the tongue side tooth surface and the mouth shape of each patient are greatly different, but the correction force of the elastic piece can be adjusted by only manufacturing the elastic piece with different bending angles and different lengths, matching and connecting the shape of the elastic piece with the arched component and the fixing component suitable for each patient and modifying the width and the length of the elastic piece. When the series of elastic piece standard parts are manufactured in batches, elastic pieces with bending angles, widths and lengths suitable for specific patients can be selected from the series of elastic piece standard parts for orthodontic appliances. Firstly, the customized production of the elastic piece is changed into standardized production, the die opening is not needed for each tooth position of each patient, the die opening is carried out for all standard pieces at one time, the repeated die opening cost is reduced, the single production is changed into batch production, the production efficiency is greatly improved, and the production cost is further reduced; secondly, the elastic pieces with the same angle and the same length have different deflection curves with different widths, and when the deflection of the elastic pieces needs to be adjusted in different stages in the whole correction process of a patient, the elastic pieces are only required to be replaced by the elastic pieces with the same length, the same bending angle and different widths, so that the die opening times and the production cost are further reduced; thirdly, the spring piece is customized according to the specific shape of the lingual side of the oral cavity of each patient, the shape of the spring piece can be finely designed and adjusted according to the condition of the patient, but the effect of the fine design and adjustment is not great, on one hand, the actually produced elastic piece is not completely attached to the lingual side of the patient, on the other hand, the elastic piece is not required to be completely attached in the actual use process, and the elastic piece is designed into standard pieces with different bending angles and different lengths, so that the design requirement is simplified, and the actual correction requirement can be completely met.

The invention also provides a production method of the orthodontic appliance comprising the elastic piece, which comprises the following steps of:

a plurality of elastic member standard members 10 are manufactured by the above-described method;

establishing a virtual standard part library of the elastic piece standard parts 10 according to the size and shape of each elastic piece standard part 10;

virtual tooth arrangement is carried out according to the original dentition model data of the patient, and ideal dentition model data after correction is obtained;

determining the configuration and location of the securing member 20 and the arch member 30 on ideal dentition model data;

selecting a proper elastic piece standard 10 from the virtual standard part library to be matched with the fixed member 20 and the arched member 30;

the fixing member 20 and the arch member 30 are manufactured.

The preparation method of the orthodontic appliance changes the production method of complete customization of the traditional orthodontic appliance, changes personalized customization production elastic parts into standard part batch production, reduces the production cost, improves the production efficiency, and does not influence the use of the orthodontic appliance. The fixing member 20 and the arch member 30 may be manufactured by standard components or by customization, because the fixing member 20 and the arch member 30 are made of rigid materials, such as stainless steel, and the cost is much lower than the cost of the personalized customization of the elastic component even if the process of personalized customization is not high.

According to the selected second connecting end 12 of the elastic piece standard 10, a connecting groove matched with the second connecting end 12 is designed on the arched member 30, the design method can be that the second connecting end 12 is subtracted from the arched member 30 through Boolean operation, a connecting groove 31 is arranged on the arched member 30, and the second connecting end 12 of the elastic piece standard 10 is inserted into the connecting groove 31 to realize connection of the two. The connection of the second connecting end 12 to the arcuate member 30 thus configured may be accomplished quickly, and in other embodiments, the connection of the second connecting end 12 to the arcuate member 30 may be accomplished using a ligature or the like. Further, the second connection end 12 and the arcuate member 30 may be fixedly connected by a bolt, the second connection end 12 is provided with a threaded hole 13, and the arcuate member 30 is provided with a fixing hole 32 through which the bolt passes. When the second connection end 12 is inserted into the connection groove 31, a bolt is inserted from the fixing hole 32 and is connected to the second connection end 12 by a screw.

Example 2:

referring to fig. 7 to 8, fig. 7 is a left side view of the elastic member in embodiment 2, and fig. 8 is a front view of the elastic member in embodiment 2, in which the elastic member has substantially the same structure as that in embodiment 1, slightly different from that in embodiment 1, and the production method is exactly the same as that in embodiment 1. The elastic member standard 10 includes the first connection end 11, the middle section 14 and the connection end 12, which are sequentially connected, the middle section 14 is spiral, and the spiral central axis of the middle section is in the same plane with the connection end 12. In other embodiments the central axis of the spiral of the intermediate section 14 may be in the same plane as the first connection end 11.

The present invention is not limited to the above-described embodiments, but, if various modifications or variations of the present invention are not departing from the spirit and scope of the present invention, the present invention is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.

Claims (9)

1. A method of producing an orthodontic appliance comprising the steps of:

producing an elastic piece standard piece by adopting a production method of an elastic piece for orthodontic treatment;

establishing a virtual standard part library of the elastic piece standard parts according to the size and shape of each elastic piece standard part;

virtual tooth arrangement is carried out according to the original dentition model data of the patient, and ideal dentition model data after correction is obtained;

determining the configuration and location of the fixation member and the arch member on the ideal dentition model data;

selecting the elastic piece standard parts which can be matched with the fixed component and the arched component from the virtual standard part library;

manufacturing the fixing member and the arcuate member;

the production method of the elastic piece for orthodontic treatment comprises the following steps: designing a plurality of elastic piece standard components, wherein two ends of each elastic piece standard component are respectively a first connecting end and a second connecting end, the first connecting ends are used for being connected with a fixed component, the second connecting ends are used for being connected with an arched component, the elastic piece standard components are provided with bending angles, namely the bending angles are included angles formed by a plane where the first connecting ends are located and a plane where the second connecting ends are located, and at least one of the width, the length and the bending angles of each elastic piece standard component is different; and manufacturing the elastic piece standard component.

2. The method of producing an orthodontic appliance of claim 1, wherein the method of producing an orthodontic appliance further comprises: according to the selected second connecting end of the elastic piece standard component, a connecting groove matched with the second connecting end is designed on the arched component.

3. The method of producing an orthodontic appliance of claim 1, wherein the step of designing a plurality of said spring standard members comprises: the bending angle difference of the two elastic piece standard parts with the closest bending angle is designed to be 0.5-5 degrees.

4. The method of producing an orthodontic appliance of claim 1, wherein the step of designing a plurality of said spring standard members comprises: the difference in length between the two elastic piece standard parts with the closest length is designed to be 0.1-2mm.

5. The method of producing an orthodontic appliance of claim 1, wherein the step of designing a plurality of said spring standard members comprises: the width difference of the two elastic piece standard parts with the closest width is designed to be 0.1-2mm.

6. The method of producing an orthodontic appliance of claim 1, wherein the step of designing a plurality of said spring standard members comprises: and designing the bending angles of the elastic piece standard parts into an arithmetic progression.

7. The method of producing an orthodontic appliance of claim 1, wherein the step of designing a plurality of said spring standard members comprises: the length of each elastic piece standard component is designed into an arithmetic progression.

8. The method of producing an orthodontic appliance of claim 1, wherein the step of designing a plurality of said spring standard members comprises: the width of each elastic piece standard component is designed into an equal difference array.

9. The method of producing an orthodontic appliance of claim 1, wherein the specific steps of manufacturing the elastic member standard include:

manufacturing a mold for the shape and structure of each elastic piece standard component;

bending the strip-shaped elastic material, and placing the bent strip-shaped elastic material into the die;

and (5) heat treatment, and shaping the elastic piece standard component.