CN113749799A - Method for producing elastic element for orthodontics and method for producing orthodontic appliance - Google Patents
Method for producing elastic element for orthodontics and method for producing orthodontic appliance Download PDFInfo
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- CN113749799A CN113749799A CN202010503796.8A CN202010503796A CN113749799A CN 113749799 A CN113749799 A CN 113749799A CN 202010503796 A CN202010503796 A CN 202010503796A CN 113749799 A CN113749799 A CN 113749799A
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
- A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
- A61C7/28—Securing arch wire to bracket
- A61C7/30—Securing arch wire to bracket by resilient means; Dispensers therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
- A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
- A61C7/28—Securing arch wire to bracket
- A61C7/30—Securing arch wire to bracket by resilient means; Dispensers therefor
- A61C7/303—Elastic bands
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Abstract
The invention discloses a method for producing an elastic piece for orthodontics and a method for producing an orthodontic appliance, wherein the method for producing the elastic piece comprises the following steps: designing a plurality of elastic piece standard parts, wherein two ends of each elastic piece standard part are respectively a first connecting end and a second connecting end, the first connecting end is used for being connected with a fixed component, the fixed component is used for being bonded on the tooth surface of a patient, the second connecting end is used for being connected with an arched component, the elastic piece standard parts are provided with bending angles, the bending angles are included angles formed by the plane where the first connecting end is located and the plane where the second connecting end is located, and at least one of the width, the length and the bending angles of each elastic piece standard part is different; manufacturing an elastic piece standard piece; according to the invention, the shape and size design of the elastic part is simplified into control of the bending angle, length and width of the elastic part, the customized production of the elastic part is changed into batch production of standard parts, and then the elastic part matched with the requirements of each patient is selected from the standard parts for use, so that the production cost of the elastic part is reduced, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of orthodontic appliances, in particular to a production method of an elastic piece for orthodontics and a production method of an orthodontic appliance.
Background
At present, aiming at the problems of teeth or faces such as crowding of teeth, bucking of teeth, uneven arrangement of teeth, malocclusion and the like, an orthodontist treats a patient by adopting an orthodontic appliance, and orthodontic appliances such as a bracket, a buccal tube and the like are main components of the orthodontic treatment appliance. In conventional orthodontic treatment, an orthodontist affixes brackets to a patient's teeth and places an archwire into the archwire slots of the brackets, the archwire applying corrective forces through the brackets to the teeth to move the teeth into the correct positions. Orthodontic appliances are generally made of metal and are affixed to the teeth to affect the appearance of the appearance, so there are some patients who choose to affix 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 includes an arch-shaped member, a plurality of elastic members and a fixing member, wherein the fixing member is used for being stuck on the teeth of a patient, one end of each elastic member is connected with the fixing member, the other end of each elastic member is connected with the arch-shaped member, the fixing member is supported by the arch-shaped member, the elastic members have a memory function and are designed according to a model obtained after the teeth are virtually arranged according to original dentition model data of the patient, so that each fixing member can drive the teeth to be aligned under the action force of the elastic members recovering the original shape, and the correction is realized. As can be seen from the description of the application and fig. 7, the inclination angles of the lingual side of the human teeth are different, that is, the inclination angles of the lingual side of the teeth facing the tongue are different, and there are individual differences among patients, so that the lingual orthodontic appliances are customized products, and the elastic member in the application is cut into a designed two-dimensional shape and then bent into a desired three-dimensional shape by a flexible flat sheet, which is described in the specification [ 0082 ], [ 0189 ], [ 0220 ] and [ 0236 ]. Since the elastic member needs to be 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 it is difficult to manufacture the elastic member into different shapes because the elastic member itself has a memory function, so the current manufacturing process is to cut the elastic member and then perform heat treatment to deform the elastic member.
The method for producing the elastic pieces in batches is provided, 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
In view of the above technical problems, the present invention provides a method for producing an elastic member for orthodontic use and a method for producing an orthodontic appliance at low production cost.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a method of producing a spring for use in orthodontics, comprising the steps of:
designing a plurality of elastic piece standard pieces, wherein two ends of each elastic piece standard piece are respectively a first connecting end and a second connecting end, the first connecting end is used for being connected with a fixed component, the second connecting end is used for being connected with an arched component, each elastic piece standard piece is provided with a bending angle, the bending angle is an included angle formed by a plane where the first connecting end is located and a plane where the second connecting end is located, and at least one of the width, the length and the bending angle of each elastic piece standard piece is different;
manufacturing the standard elastic piece.
Most current orthodontic appliances are custom made products in order to match the patient's dental condition, and the elastic member in CN109069229A is also a custom made product. The customized product is designed according to the shape and oral cavity 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 product produced by each set of mould can only be used for the specific tooth position of a specific patient and cannot be produced in batch, so that the production efficiency is low, the mould opening quantity is large, the process is complicated, and the production cost is high. In orthodontic correction, the memory performance of elastic pieces is utilized to drive teeth to shift so as to realize tooth correction, the memory performance of the elastic pieces can be influenced by a common production process in order to keep the memory function of the elastic pieces, the conventional production method at present is that each elastic piece is firstly designed to obtain a design scheme, then the design scheme is unfolded into a two-dimensional structure, the two-dimensional structure is firstly cut out in the production process, and then the elastic pieces are bent and placed in a die for shaping and heat treatment so as to obtain a final shape. Therefore, the customized elastic member needs to be opened for each elastic member, the elastic member of each tooth position of each patient is different, only one patient needs to be opened for each tooth, and the production process of the elastic member is complex, so that the customized elastic member is high in cost and low in production efficiency. Through the research of a large number of cases, although the difference between the lingual tooth surface and the soft and hard tissues of each patient is large, the shape and the size of the elastic part of each tooth position in the current market are different, the elastic part is only required to be manufactured into the arch-shaped component and the fixed component which have different bending angles and different lengths and can be matched and connected with each patient in shape, and the width and the length of the elastic part are modified, so that the correction force of the elastic part can be adjusted. The invention relates to a method for manufacturing an orthodontic appliance, which is characterized in that a batch of standard elastic piece parts are designed and manufactured to replace customized and produced individualized elastic pieces, the design is not specific to a specific patient, but a whole set of standard elastic piece parts capable of adapting to the oral conditions of all patients are designed, and when in orthodontic treatment, the elastic pieces suitable for the bending angle, the width and the length of the specific patient can be selected to be used in the orthodontic appliance. The standard component is a component standardized in various aspects such as structure, size, and mark, and the structure, shape, and size are designed in advance and manufactured directly according to a predetermined standard. Firstly, the customized production of the elastic part is changed into the production of standard parts, the die sinking is not needed to be carried out on each tooth position of each patient, the die sinking is carried out on all the standard parts at one time, the cost of repeated die sinking 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 just can be matched with the deflection of the elastic pieces required to be adjusted at different stages in the whole correcting process of a patient, and only the elastic pieces are 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 part is customized according to the specific shape of the oral cavity tongue side of each patient, the shape of the spring part can be finely designed and adjusted according to the condition of the patient, but the fine design and adjustment effects are not large, on one hand, the actually produced elastic part is not completely attached to the tongue side of the patient, on the other hand, the elastic part is not completely attached in the actual use process, and the elastic part is designed into standard parts 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 standards comprises: and designing the bending angle difference of the two elastic piece standard pieces with the closest bending angles 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 °, or the like. The bending angle of the standard piece of elastic member may be set to 100 ° -180 °, specifically, such as 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 general demand angle of patients in different regions.
In some preferred embodiments, the step of designing a plurality of said spring standards comprises: the length difference of the two elastic part standard parts with the closest length is designed to be 0.1-2 mm. 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, 2 mm. The length of the elastic member standard may be set to 2mm to 20 mm. 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 or the like.
In some preferred embodiments, the step of designing a plurality of said spring standards comprises: the width difference of the two elastic part standard parts with the closest width is designed to be 0.1-2 mm. 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, 2 mm. The width of the elastic member standard may be set to 1.5mm to 15 mm. 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 mm or the like.
In some preferred embodiments, the step of designing a plurality of said spring standards comprises: and designing the bending angle of each elastic element standard element into an arithmetic progression. Namely, the bending angle difference of the elastic part standard parts with the closest bending angles is the same.
In some preferred embodiments, the step of designing a plurality of said spring standards comprises: and designing the length of each elastic element standard element into an arithmetic progression. That is, the length difference between every two elastic member standard members with the closest length is the same.
In some preferred embodiments, the step of designing a plurality of said spring standards comprises: and designing the width of each elastic element standard element into an arithmetic progression. That is, the width difference between every two elastic member standards with the closest width is the same.
In some preferred embodiments, the specific steps of manufacturing the standard elastic member include:
manufacturing a mould according to the shape structure of each elastic piece standard piece;
bending the strip-shaped elastic material, and putting the bent strip-shaped elastic material into the die;
and (4) carrying out heat treatment to shape the elastic piece standard piece.
The above is provided only for the manufacturing process of the elastic member, and in other embodiments, other methods, such as injection molding using a polymer material with elasticity, may be adopted.
The invention also provides a production method of the orthodontic appliance, which comprises the following steps:
the elastic piece standard piece is produced by the production method of the elastic piece for orthodontics;
establishing a virtual standard part library of the elastic part standard parts according to the size and shape of each elastic part standard part;
performing virtual tooth arrangement according to the original dentition model data of the patient to obtain corrected ideal dentition model data;
determining the configuration and position of the fixation member and the arch member on ideal dentition model data;
selecting the elastic part standard which can be matched with the fixed component and the arched component from the virtual standard part library;
manufacturing the fixing member and the arch member.
The order of the steps in the above production method is not limited, and various manufacturers can arrange the order of the steps according to actual situations, and even some steps can be performed synchronously or in reverse order. The preparation method of the orthodontic appliance changes the completely customized production mode of the traditional orthodontic appliance, changes the individually customized production of the elastic piece into the batch production of the standard piece, reduces the production cost, improves the production efficiency, and does not influence the use of the orthodontic appliance. The configuration and position of the fixing component and the arch component can be determined in two ways, one is to customize and design the configuration and position of the fixing component and the arch component according to the ideal dentition model data, the other is to manufacture a batch of standard parts of the fixing component and standard parts of the arch component, establish a virtual standard part library according to the standard parts of the standard parts, and then select the fixing component and the arch component which can match the ideal dentition model data from the virtual standard part library of the fixing component and the virtual standard part library of the arch component, and both methods can be used. Because the fixed component and the arched component are both made of rigid materials, such as stainless steel and the like, even if the customized process is adopted, the process complexity is not high, and the difference between the customized cost and the standard production cost is relatively small.
In some preferred embodiments, the method of producing an orthodontic appliance further comprises: and according to the selected second connecting end of the elastic piece standard, designing a connecting groove matched with the second connecting end on the arched component. And a connecting groove is arranged on the arched component, and the second connecting end of the elastic piece is inserted into the connecting groove to realize the connection of the two. The second connecting end can be subtracted from the arcuate member by boolean operations, resulting in a connecting groove on the arcuate member matching said second connecting end.
Compared with the prior art, the method has the following positive effects: the invention provides a production method of an elastic piece for orthodontics 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 parts, wherein two ends of each elastic piece standard part are respectively a first connecting end and a second connecting end, the first connecting end is used for being connected with a fixed component, the fixed component is used for being bonded on the tooth surface of a patient, the second connecting end is used for being connected with an arched component, the elastic piece standard parts are provided with bending angles, the bending angles are included angles formed by the plane where the first connecting end is located and the plane where the second connecting end is located, and at least one of the width, the length and the bending angles of each elastic piece standard part is different; manufacturing the standard elastic piece. The invention changes the customized production of the elastic parts into the batch production of standard parts, and selects the elastic parts matched with the requirements of each patient from the standard parts for use, and the invention is characterized in that the shape and the size of the elastic parts are simplified into the control of the bending angle, the length and the width of the elastic parts, and the elastic parts matched with the requirements of each patient are obtained 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 illustrated by the following figures and examples.
Drawings
FIG. 1 is a schematic view of a reference frame of a tooth.
Fig. 2 is a perspective view of the orthodontic appliance of example 1.
Fig. 3 is a schematic structural view of an 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 plan view of the elastic member in example 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
Unless otherwise indicated, in the following structural description, a reference frame to mandibular teeth is used to describe the adhesive positioning device. Thus, as used herein, terms such as labial, lingual, mesial, distal, mesial, gingival, and dental used to describe the adhesive locating 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 described terminology, as the adhesive locating device may be used with other teeth and other orientations within the oral cavity. For example, an adhesive positioning device may also be coupled to the lingual surface of the teeth and fall within the scope of the invention. Those skilled in the art will appreciate that there are variations in the frame of reference that may not be directly referenced to the descriptive terms used herein. However, embodiments of the invention are intended to be independent of position and orientation within the oral cavity and the relative terms used to describe the embodiments are merely intended to provide an unambiguous explanation of the embodiments in the drawings. Likewise, the relative terms labial, lingual, mesial, distal, mesial, gingival and dental in no way limit the invention to a particular position or orientation.
It is to be noted that the relative terms labial, lingual, mesial, distal, mesial, gingival and orthodontic terms are used in the industry. Referring to fig. 1, the surface of a tooth can be roughly divided into six surfaces, taking a certain tooth in the lower right jaw area as an example. The surface of the tooth that is to be occlusal with the maxillary tooth is the end surface or the tooth surface, and the end where the tooth surface is located is called the tooth end; the surface of the tooth connected with the attached gingival tissue is the gingival surface, and the end where the gingival surface is located 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 gingival direction. The surface of the tooth facing the lips is the labial surface, the side where the labial surface is located is called the labial surface, the surface of the tooth facing the tongue is the lingual surface, the side where the lingual surface is located is called the lingual surface, the labial surface and the lingual surface are opposed to each other, and the direction in which the labial surface and the lingual surface are formed is also called the labial-lingual direction. Generally, the labial-lingual direction, the lingual-labial direction, refers to a bi-directional direction, while the labial-lingual direction refers to a unidirectional direction from the labia to the labia, and the lingual-labial direction refers to a unidirectional direction from the lingual to the labia. The two surfaces of the tooth that contact adjacent teeth are the mesial and distal surfaces, respectively, and are distinguished by the distance from the middle, the mesial surface being closer to the central incisor and the distal surface being further from the central incisor, the direction formed by the two being also called the mesial-distal direction, or the 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 the orthodontic appliance. Referring to fig. 2, the orthodontic appliance is composed of an elastic member standard 10, a fixing member 20, and an arch member 30. Referring to fig. 3-6, fig. 3 is a schematic structural view of the arch-shaped member of embodiment 1, fig. 4 is a front view of the elastic member of embodiment 1, fig. 5 is a left side view of the elastic member of embodiment 1, fig. 6 is a top view of the elastic member of embodiment 1, the two ends of the standard elastic member 10 are respectively a first connecting end 11 and a second connecting end 12, the first connecting end 11 is used for connecting with the fixing member 20, the fixing member 20 is used for adhering to the tooth surface of a patient, the second connecting end 12 is used for connecting with the arch-shaped member 30, and the arch-shaped member 30 is used for supporting each standard elastic member 10. The elastic part standard part 10 is provided with different bending angles for matching the lingual environments of the tooth positions, and the bending angle is an included angle formed by a plane where the first connecting end 11 is located and a plane where the second connecting end 12 is located. The method for producing the standard elastic part 10 comprises the first step of designing a plurality of standard elastic parts, wherein at least one of the width, the length and the bending angle of each standard elastic part 10 is different; the difference between the bending angles of the two elastic piece standard parts 10 with the closest bending angles is set to be 0.5-5 °, specifically, the difference 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 standard piece of elastic member may be set to 100 ° -180 °, specifically, such as 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 general demand angle of patients in different regions, in this embodiment, the bending angle of each elastic piece standard part 10 is designed into an arithmetic progression, 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 as 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 as one of the first connection end 11 and the connection end 12, or the middle section 14 may extend along an arc-shaped curved surface, in this embodiment, the middle section 14 and the second connection end 12 are in the same plane; setting the width difference of the two elastic piece standards 10 with the closest width to be 0.1-2mm, specifically, 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, setting the width of the elastic piece standards to be 1.5mm-15mm, in this embodiment, the width of each elastic piece standard 10 is designed to be an equal difference series, and the width difference is set to be 0.1 mm; the difference in length between the two standards 10 of the elastic member having the closest length is set to 0.1-2 mm. 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, 2 mm. The length of the elastic member standard may be set to 2mm to 20mm, and in this embodiment, the length of each of the elastic member standards 10 is designed to be in an arithmetic progression, the length difference is set to 0.1mm, and the length may be designed to be in a range of 2 to 5mm or 12mm to 20 mm. The second step is to manufacture the elastomeric standard. The specific steps for manufacturing the standard elastic part comprise: manufacturing a mold for the shape structure of each elastic member standard 10; bending the strip-shaped elastic material, and putting the bent strip-shaped elastic material into the die; and (4) carrying out heat treatment to shape the elastic piece standard part 10.
Most of the current orthodontic appliances are customized products in order to match the tooth states of patients, and elastic members in CN109069229A are also customized products, because the elastic members are used for keeping the memory function of the elastic members, teeth move under the action of the reset force of the elastic members, the production method of the orthodontic appliances is different from that of common elastic members, each elastic member is designed firstly and then is unfolded into a two-dimensional structure, the two-dimensional structure is cut out in the production process, and then the elastic members are bent and placed in a mold for shaping and heat treatment to obtain the final shape, so that the mold opening needs to be carried out on each customized product, the elastic members of each tooth position of each patient are different, the production process of the elastic members is originally complex, the customized production cost is high, and the production efficiency is low. Through research and development of a large number of cases, although the tongue side tooth surface and the mouth shape of each patient are greatly different, the elastic piece is only required to be made into the shape with different bending angles and different lengths, the shape of the elastic piece can be matched and connected with the arched component and the fixing component which are suitable for each patient, and the width and the length of the elastic piece are modified, so that the correction force of the elastic piece can be adjusted. And manufacturing a batch of standard part sequences of the elastic parts, and selecting the elastic parts with the bending angles, the widths and the lengths suitable for specific patients from the sequences for orthodontic appliances. Firstly, the customized production of the elastic part is changed into standardized production, the die sinking is not needed to be carried out on each tooth position of each patient, the die sinking is carried out on all standard parts at one time, the cost of repeated die sinking 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 just can be matched with the deflection of the elastic pieces required to be adjusted at different stages in the whole correcting process of a patient, and only the elastic pieces are 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 part is customized according to the specific shape of the oral cavity tongue side of each patient, the shape of the spring part can be finely designed and adjusted according to the condition of the patient, but the fine design and adjustment effects are not large, on one hand, the actually produced elastic part is not completely attached to the tongue side of the patient, on the other hand, the elastic part is not completely attached in the actual use process, and the elastic part is designed into standard parts 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:
manufacturing a plurality of elastic member standard parts 10 by the method;
establishing a virtual standard part library of the elastic part standard parts 10 according to the size and shape of each elastic part standard part 10;
performing virtual tooth arrangement according to the original dentition model data of the patient to obtain corrected ideal dentition model data;
determining the configuration and position of said fixation member 20 and said arch member 30 on ideal dentition model data;
selecting a proper elastic part standard 10 from the virtual standard part library to be matched with the fixed component 20 and the arched component 30;
the fixing member 20 and the arcuate member 30 are manufactured.
The preparation method of the orthodontic appliance changes the completely customized production method of the traditional orthodontic appliance, changes the individualized customized production of the elastic piece into the standard piece for 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 can be made of standard parts or customized production, because the fixing member 20 and the arch member 30 are made of rigid materials, such as stainless steel, and the like, even if the fixing member is made of a personalized customization process, the process complexity is not high, and the cost is much lower than the personalized customization production cost of the elastic member.
According to the selected second connecting end 12 of the standard elastic element 10, a connecting groove matched with the second connecting end 12 is designed on the arched component 30, the second connecting end 12 and the arched component 30 are subtracted by Boolean operation, the connecting groove 31 is arranged on the arched component 30, and the second connecting end 12 of the standard elastic element 10 is inserted into the connecting groove 31 to realize the connection of the two. The bow-shaped member 30 designed in this way can be quickly connected to the second connecting end 12, and in other embodiments, the second connecting end 12 can be connected to the bow-shaped member 30 by using a ligature wire or the like. Further, the second connecting end 12 and the arch member 30 may be fixedly connected by bolts, the second connecting end 12 is provided with a threaded hole 13, and the arch member 30 is provided with a fixing hole 32 for passing the bolts. 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. 7-8, 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, the structure of the elastic member in this embodiment is basically the same as embodiment 1, slightly different, and the production method is completely the same as embodiment 1. The elastic component standard component 10 comprises the first connecting end 11, a middle section 14 and the connecting end 12 which are connected in sequence, wherein the middle section 14 is in a spiral shape, and a spiral central axis of the middle section and the connecting end 12 are in the same plane. In other embodiments, the central axis of the helix of the intermediate section 14 can be in the same plane as the first connection end 11.
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. A method of producing a spring for use in orthodontics, comprising the steps of:
designing a plurality of elastic piece standard pieces, wherein two ends of each elastic piece standard piece are respectively a first connecting end and a second connecting end, the first connecting end is used for being connected with a fixed component, the second connecting end is used for being connected with an arched component, each elastic piece standard piece is provided with a bending angle, the bending angle is an included angle formed by a plane where the first connecting end is located and a plane where the second connecting end is located, and at least one of the width, the length and the bending angle of each elastic piece standard piece is different;
manufacturing the standard elastic piece.
2. The method for producing an elastic member for orthodontics according to claim 1, wherein the step of designing the plurality of elastic member standards comprises: and designing the bending angle difference of the two elastic piece standard pieces with the closest bending angles to be 0.5-5 degrees.
3. The method for producing an elastic member for orthodontics according to claim 1, wherein the step of designing the plurality of elastic member standards comprises: the length difference of the two elastic part standard parts with the closest length is designed to be 0.1-2 mm.
4. The method for producing an elastic member for orthodontics according to claim 1, wherein the step of designing the plurality of elastic member standards comprises: the width difference of the two elastic part standard parts with the closest width is designed to be 0.1-2 mm.
5. The method for producing an elastic member for orthodontics according to claim 1, wherein the step of designing the plurality of elastic member standards comprises: and designing the bending angle of each elastic element standard element into an arithmetic progression.
6. The method for producing an elastic member for orthodontics according to claim 1, wherein the step of designing the plurality of elastic member standards comprises: and designing the length of each elastic element standard element into an arithmetic progression.
7. The method for producing an elastic member for orthodontics according to claim 1, wherein the step of designing the plurality of elastic member standards comprises: and designing the width of each elastic element standard element into an arithmetic progression.
8. The method for producing an elastic member for orthodontics according to claim 1, wherein the specific step of manufacturing the elastic member standard member comprises:
manufacturing a mould according to the shape structure of each elastic piece standard piece;
bending the strip-shaped elastic material, and putting the bent strip-shaped elastic material into the die;
and (4) carrying out heat treatment to shape the elastic piece standard piece.
9. A method of producing an orthodontic appliance comprising the steps of:
producing the elastic piece standard by using the production method of the elastic piece for orthodontics according to any one of claims 1 to 8;
establishing a virtual standard part library of the elastic part standard parts according to the size and shape of each elastic part standard part;
performing virtual tooth arrangement according to the original dentition model data of the patient to obtain corrected ideal dentition model data;
determining the configuration and position of the fixation member and the arch member on ideal dentition model data;
selecting the elastic part standard which can be matched with the fixed component and the arched component from the virtual standard part library;
manufacturing the fixing member and the arch member.
10. The method of producing an orthodontic appliance according to claim 9, further comprising: and according to the selected second connecting end of the elastic piece standard, designing a connecting groove matched with the second connecting end on the arched component.
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| CN113749799B (en) | 2023-10-13 |
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