CN107157598B - Manufacturing method of orthodontic traction device mold and manufacturing method of orthodontic traction device - Google Patents
Manufacturing method of orthodontic traction device mold and manufacturing method of orthodontic traction device Download PDFInfo
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- CN107157598B CN107157598B CN201710214217.6A CN201710214217A CN107157598B CN 107157598 B CN107157598 B CN 107157598B CN 201710214217 A CN201710214217 A CN 201710214217A CN 107157598 B CN107157598 B CN 107157598B
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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
Abstract
The invention relates to the field of orthodontic treatment, and discloses a method for manufacturing an orthodontic traction device and a method for manufacturing a die thereof, wherein the method for manufacturing the die comprises the following steps: preparing a model; making a soft mold of the model; preparing a hard mold coated with the soft mold; opening a die taking port on the hard die; taking out the mold coated with the soft mold from the mold taking port to obtain a hard mold with the mold taking port; releasing the model from a demolding opening of the soft mold to obtain the soft mold; and putting the soft mold out of the mold into the hard mold from the mold taking port of the hard mold again to prepare the mold. Compared with the prior art, the orthodontic traction device can be manufactured by using the obtained mould, when the orthodontic traction device is manufactured, only the injection molding material is injected into the soft mould of the mould, the mould filled with the injection molding material is attached to the surface of the tooth, and after the injection molding material is condensed, the orthodontic traction device can be obtained, so that the orthodontic traction device is simple to manufacture and low in cost. And the separated hard die and the soft die can be reused, so that the manufacturing cost of the orthodontic traction device is further reduced.
Description
Technical Field
The invention relates to the field of orthodontic treatment, in particular to an orthodontic traction device and a manufacturing method of a die thereof.
Background
Orthodontics, also called as orthodontics, is a process of rearranging teeth, recovering and rebuilding oral cavity functions and normal forms on the premise of keeping the original form of a single tooth unchanged.
Currently, the use of invisible appliances to straighten teeth is becoming increasingly popular in orthodontic treatment. In the invisible correction, a traction hook is adhered to the tooth surface of a tooth, and then a rubber ring is hung to apply traction force to the invisible correction device. The traction hook which is commonly used in clinic is an artificial stainless steel wire bent or metal finished product, and when in adhesion, the artificial bent traction hook needs to be adhered to the tooth surface by using composite resin, however, a certain time is needed for the artificial bent traction hook, and a certain cost is needed for the metal finished product. In addition, the artificial bending and metal finished product traction hook is made of stainless steel, which is not in accordance with the color in the oral cavity and affects the beauty. In addition, the metal and resin have low adhesive strength and are easily detached during use.
Therefore, it is an urgent need to solve the problem of producing a practical orthodontic traction device with low cost and good appearance.
Disclosure of Invention
The invention aims to provide a manufacturing method of an orthodontic traction device mould and a manufacturing method of an orthodontic traction device, so that the orthodontic traction device can be tightly adhered to the tooth surface of a tooth and is not easy to fall off during orthodontic treatment of the tooth, the color of the orthodontic traction device is consistent with the color in the oral cavity, the appearance is not influenced, metal products are not needed during manufacturing, the cost is lower, and the manufacturing is convenient and takes less time.
In order to solve the technical problem, an embodiment of the present invention provides a method for manufacturing an orthodontic traction device mold, including the following steps:
preparing a physical model of the orthodontic traction device;
pressing the physical model by using a first plastic material to prepare an elastic soft mold coating the physical model, wherein a demolding opening for taking out the physical model is formed in the elastic soft mold after the elastic soft mold is prepared;
pressing the physical model coated with the elastic soft mold by using a second plastic material to prepare a rigid hard mold coated with the elastic soft mold; after the rigid hard mold is manufactured, a hollow part used for exposing the demolding opening is formed on the rigid hard mold;
opening a die taking port on the rigid hard die;
taking out the physical model coated with the elastic soft mold from the mold taking opening to obtain a rigid hard mold with the mold taking opening;
releasing the physical model from a demolding opening of the elastic soft mold to obtain the elastic soft mold;
and putting the elastic soft die out of the physical model into the rigid hard die from the die taking opening of the rigid hard die again to prepare the die of the orthodontic traction device, wherein the die taking opening on the elastic soft die is exposed to the hollow part of the rigid hard die after the elastic soft die is put into the rigid hard die again.
In addition, the embodiment of the invention also provides a manufacturing method of the orthodontic traction device, which comprises the following steps:
providing a die manufactured by the manufacturing method of the orthodontic traction device die;
injecting injection molding materials into the elastic soft mold from a demolding opening of the elastic soft mold through the hollow-out part of the rigid hard mold;
after the injection molding material is filled in the elastic soft mold, the mold is attached to the surface of the tooth;
after the injection molding material is condensed into an orthodontic traction device, separating the rigid hard mold and the elastic soft mold from a mold taking port of the rigid hard mold;
and separating the orthodontic traction device from the demolding opening of the elastic soft mold to obtain the orthodontic traction device fixedly arranged on the surface of the tooth.
In addition, the embodiment of the invention also provides a manufacturing method of the orthodontic traction device mould, which comprises the following steps:
preparing a physical model of the orthodontic traction device;
pressing the physical model by using a plastic material to prepare an elastic soft mold coating the physical model, wherein a demolding opening for taking out the physical model is formed in the elastic soft mold after the elastic soft mold is prepared;
releasing the physical model from a demolding opening of the elastic soft mold to obtain the elastic soft mold;
in addition, the embodiment of the invention also provides a manufacturing method of the orthodontic traction device, which comprises the following steps:
providing a die manufactured by the manufacturing method of the orthodontic traction device die;
injecting injection molding materials into the elastic soft mold from a demolding opening of the elastic soft mold;
after the elastic soft die is filled with the injection molding material, the die is attached to the surface of the tooth through the injection molding material;
and after the injection molding material is condensed into the orthodontic traction device, separating the elastic soft mold from the orthodontic traction device through a demolding opening of the elastic soft mold to obtain the orthodontic traction device fixedly arranged on the surface of the tooth. Compared with the prior art, the embodiment of the invention does not use a metal traction hook, but manufactures the die of the orthodontic traction device, and the manufactured die is formed by combining an elastic soft die and a rigid hard die. The traction device can be tightly adhered to teeth and is not easy to fall off; the color of the oral cavity is consistent with that of the oral cavity, and the appearance is not influenced; the metal product with high cost is not needed to be used during the manufacturing, so that the price advantage is achieved; and the manufacture is very convenient, and much time is not needed. In addition, the separated rigid hard die and the separated elastic soft die can be reused, so that the manufacturing cost of the orthodontic traction device is further reduced.
In addition, in the step of preparing the physical model of the orthodontic traction device, the physical model is prepared by adopting the following sub-steps:
modeling the orthodontic traction device to obtain a 3D model of the orthodontic traction device;
and printing the 3D model of the modeled orthodontic traction device to obtain a physical model of the orthodontic traction device.
By means of 3D modeling and printing, a model with higher precision can be manufactured, and the model can be improved continuously according to the experience of a user, so that the manufactured orthodontic traction device has better experience.
Further, the first plastic material is a thermoplastic material and in the step of compression molding the physical model of the orthodontic traction device with the first plastic material, the first plastic material compression molding the physical model of the orthodontic traction device by the sub-steps of:
heating the first plastic material until the first plastic material softens;
stamping the physical model by using a die-pressing device through the softened first plastic material until the softened first plastic material is completely attached to the outer surface of the physical model;
and cooling the first plastic material until the first plastic material is molded to obtain the elastic soft mold for coating the physical model.
The elastic soft die is made of thermoplastic materials, so that the making process is more convenient and faster.
In addition, the demolding opening is formed directly by the first plastic material when the physical model of the orthodontic traction device is subjected to compression molding;
or the demolding opening is formed after the elastic soft mold is manufactured.
Further, the second plastic material is a thermoplastic material, and in the step of press-molding the physical model covering the elastic soft mold with the second plastic material, the second plastic material press-molds the physical model covering the elastic soft mold by the following substeps:
heating the second plastic material until the second plastic material softens;
stamping the second softened plastic material to the elastic soft die attached to the physical model by using die pressing equipment until the second softened plastic material is completely attached to the elastic soft die;
and cooling the second plastic material until the second plastic material is molded to obtain the rigid hard mold.
The rigid hard die is made of thermoplastic materials, so that the manufacturing process is more convenient and faster.
In addition, the hollow part is formed directly when the second plastic material is used for pressing the elastic soft mold attached with the physical model;
or the hollow part is formed by independently manufacturing the rigid hard mould.
In the step of opening the die-taking opening in the rigid die, the die-taking opening is opened by the following substeps:
arranging a cutting line on the rigid hard die;
and cutting along the cutting line, cutting off the rigid hard die on one side of the cutting line, wherein the position of the cut-off part is the die taking port of the rigid hard die.
In addition, the cut-off part of the rigid hard die is at least half of the rigid hard die, so that the rigid hard die and the elastic soft die are convenient to separate and reset.
In addition, after the step of releasing the physical model from the release opening of the soft mold to obtain the elastic soft mold, the method further comprises the following steps:
and finishing the rigid hard die.
In addition, the injection molding material is medical composite resin, and is solidified through photocuring, so that the material is healthy and environment-friendly, and the solidification speed is high.
Drawings
Fig. 1 is a schematic view of a method of making an orthodontic lead tool mold in accordance with a first embodiment of the invention;
fig. 2 is a schematic view of an orthodontic traction device mold in accordance with a first embodiment of the invention;
fig. 3 is a schematic view of the flexible soft mold of the orthodontic traction device mold in accordance with the first embodiment of the invention;
fig. 4 is a schematic view of a rigid die of an orthodontic traction device die in accordance with a first embodiment of the invention;
fig. 5 is a schematic view of a method of making an orthodontic lead in accordance with a second embodiment of the invention;
fig. 6 is a schematic view of a method of making an orthodontic lead tool mold in accordance with a third embodiment of the invention;
fig. 7 is a schematic view of an orthodontic traction device mold in a third embodiment of the invention;
fig. 8 is a schematic view of a method of making an orthodontic lead in accordance with a fourth embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
A first embodiment of the invention relates to a method for manufacturing an orthodontic traction device die, as shown in fig. 1, 2, 3 and 4, comprising the steps of:
and step 110, manufacturing a physical model of the orthodontic traction device.
And 120, performing compression molding on the physical model by using the first plastic material to obtain the elastic soft mold 1 covering the physical model, wherein after the elastic soft mold 1 is obtained, a demolding opening 3 for taking out the physical model is formed in the elastic soft mold 1.
And 140, opening a die taking opening 5 for the rigid hard die 2.
And 150, taking out the physical model coated with the elastic soft mold 1 from the mold taking opening 5 to obtain the rigid hard mold 2 with the mold taking opening 5.
And 160, releasing the physical model from the demolding opening 3 of the elastic soft mold 1 to obtain the elastic soft mold.
And 170, putting the elastic soft mold 1 from which the physical model is removed into the rigid hard mold 2 from the mold taking port 5 of the rigid hard mold 2 again to prepare the mold of the orthodontic traction device, and exposing the mold removing port 3 on the elastic soft mold 1 to the hollow part 4 of the rigid hard mold 2 after the elastic soft mold 1 is put into the rigid hard mold 2 again.
In conclusion, it is found that the manufactured mold is composed of an elastic soft mold 1 and a rigid hard mold 2, the rigid hard mold 2 is provided with a mold taking port 5, the elastic soft mold 1 can be placed into the rigid hard mold from the mold taking port 5 of the rigid hard mold 2 or taken out from the rigid hard mold, so that the elastic soft mold 1 and the rigid hard mold 2 can be disassembled and assembled conveniently, when the mold is combined together, the rigid hard mold 2 can be used as a grasping point of the mold by utilizing the non-deformation characteristic of the rigid hard mold 2, the elastic soft mold 1 can contain injection molding materials, after the injection molding materials are injected into the elastic soft mold, the rigid hard mold can determine the shape of the injection molding materials after being molded, meanwhile, the mold taking port 5 is also arranged on the rigid hard mold, the injection molding materials can be separated from the elastic soft mold after being molded, and the injection molding materials can be separated from the elastic soft mold by utilizing the mold taking port 3 arranged on the elastic soft mold to realize the separation from the elastic soft mold after being molded, thereby manufacturing the orthodontic traction device. In addition, the separated rigid hard die and the separated elastic soft die can be recycled, so that the manufacturing cost of the orthodontic traction device is further reduced.
In step 110, the physical model of the orthodontic traction device is prepared by the following steps:
and modeling the orthodontic traction device to obtain a 3D model of the orthodontic traction device.
And printing the 3D model of the modeled orthodontic traction device to obtain a physical model of the orthodontic traction device.
One end of the physical model is required to be attached to the tooth surface, so that a plane is manufactured, the middle part of the physical model can be hung with a rubber ring to provide traction force for the appliance, and the other end of the physical model is required to be contacted with the labial-buccal surface or the tongue-palate surface, so that the physical model is manufactured into an arc shape to prevent the labial-buccal surface or the tongue-palate surface from being damaged. By means of 3D modeling and printing, a model with higher precision can be manufactured, and the model can be improved continuously according to the experience of a user, so that the manufactured orthodontic traction device has better experience.
It is further noted that the first plastic material is a thermoplastic material and that in the step 120 of compression molding the physical model of the abnormal traction device with the first plastic material, the first plastic material may be compression molded to the physical model of the abnormal traction device by the sub-steps of:
the first plastic material is heated until the first plastic material softens.
And stamping the physical model by using a stamping device until the softened first plastic material is completely attached to the outer surface of the physical model.
And cooling the first plastic material until the first plastic material is molded to obtain the elastic soft mold 1 for coating the physical model.
The elastic soft mold 1 is made of thermoplastic materials, and the making process is more convenient and faster.
The mold release opening 3 in step 120 is formed directly when the first plastic material is used for compression molding the physical model of the abnormal traction device, or can be formed separately after the elastic soft mold 1 is manufactured.
It is worth mentioning that the second plastic material is a thermoplastic material, and in the step 130 of compression molding the physical model covering the elastic soft mold 1 with the second plastic material, the second plastic material compression molds the physical model covering the elastic soft mold 1 by the following sub-steps:
the second plastic material is heated until the second plastic material softens.
And stamping the elastic soft die attached to the physical model by the softened second plastic material by using die equipment until the softened second plastic material is completely attached to the elastic soft die.
And cooling the second plastic material until the second plastic material is molded to obtain the rigid die 2.
The rigid hard die 2 is made of thermoplastic materials, so that the manufacturing process is more convenient and faster.
The hollow part 4 in step 130 is formed directly by the second plastic material when the elastic soft mold to which the physical model is attached is compression molded, or the rigid hard mold 2 may be separately opened after being manufactured.
In the step 140 of opening the die opening 5 in the rigid die 2, the die opening 5 is opened by the following substeps:
a cutting line is arranged on the rigid hard die 2;
cutting is carried out along the cutting line, the rigid hard die 2 on one side of the cutting line is cut off, and the position of the cut part is the die taking opening 5 of the rigid hard die 2.
In order to realize quick separation and combination between the elastic soft die 1 and the rigid hard die 2, a hard die for cutting off a part is required, and cutting lines are arranged on the hard die to ensure that the hard die is more convenient to cut.
It is worth mentioning that the cut-off part of the rigid hard mold 2 is at least half of the rigid hard mold 2, so that the rigid hard mold 2 and the elastic soft mold 1 can be conveniently separated and reset.
Further, after the step 160 of releasing the physical model from the releasing port 3 of the soft mold to obtain the elastic soft mold, the method further comprises the steps of:
step 161, trimming the rigid die 2 to remove burrs of the rigid die.
A second embodiment of the present invention relates to a method for manufacturing an orthodontic traction device, as shown in fig. 5, comprising the steps of:
and 250, separating the orthodontic traction device from the demoulding port 3 of the elastic soft mould to obtain the orthodontic traction device fixedly arranged on the surface of the tooth.
It is not difficult to discover that the device for providing traction in orthodontics does not use a traction hook made of metal material, but a die of the orthodontic traction device is manufactured, the manufactured die is formed by combining an elastic soft die and a rigid hard die, when the orthodontic traction device is manufactured, injection molding materials are injected into the elastic soft die of the die, the die filled with the injection molding materials is attached to the surface of a tooth, after the injection molding materials are condensed, the rigid hard die and the elastic soft die can be separated through a die taking port 5 of the rigid hard die, then the elastic soft die and the condensed injection molding materials can be separated through a die removing port 3 of the elastic soft die, and meanwhile, the condensed injection molding materials and the surface of the tooth are combined into a whole to form the orthodontic traction device on the surface of the tooth so as to replace the action of the traction hook. The traction device can be tightly adhered to the tooth surface of the tooth and is not easy to fall off; the color of the oral cavity is consistent with that of the oral cavity, and the appearance is not influenced; the metal product with high cost is not needed to be used during the manufacturing, so that the price advantage is achieved; and the manufacture is very convenient, and much time is not needed. In addition, the separated rigid hard die and the separated elastic soft die can be reused, so that the manufacturing cost of the orthodontic traction device is further reduced.
It is worth mentioning that the injection molding material in the step 220 is medical composite resin, and the material is healthy and environment-friendly through light curing and condensation, and the condensation speed is high.
Because in correcting the treatment, need use a plurality of such just abnormal draw gear, when the preparation, can make a plurality of moulds simultaneously, use simultaneously for speed when doctor operates brings better experience for correcting the patient.
A third embodiment of the present invention relates to a method for manufacturing an orthodontic traction device mold, and is substantially the same as the first embodiment, and mainly differs therefrom in that: in a first embodiment, the orthodontic traction device die is composed of a flexible elastic die and a rigid hard die. In a third embodiment of the invention, the orthodontic traction device mould consists of only the elastic soft mould, as shown in fig. 6 and 7, and comprises the following steps:
in conclusion, it is obvious that the manufactured mould only consists of the elastic soft mould, the elastic soft mould is used for accommodating the injection molding material and determining the shape of the injection molding material after being formed, and after the injection molding material is injected into the elastic soft mould and is formed, the elastic soft mould and the elastic soft mould can be separated from each other by utilizing the demoulding port 3 of the elastic soft mould and the elastic characteristic of the elastic soft mould, so that the orthodontic traction device is manufactured. In addition, the elastic soft die can be repeatedly used, so that the manufacturing cost of the orthodontic traction device is further reduced.
A fourth embodiment of the present invention relates to a method for manufacturing an orthodontic traction device, as shown in fig. 8, including the steps of:
step 810, providing a mold manufactured by the manufacturing method of the orthodontic traction device mold according to the third embodiment;
step 820, injecting injection molding materials into the elastic soft mold from a demolding opening of the elastic soft mold;
step 830, after the elastic soft mold is filled with the injection molding material, attaching the mold to the surface of the tooth through the injection molding material;
and 840, after the injection molding material is condensed into the orthodontic traction device, separating the elastic soft mold and the orthodontic traction device through a demolding opening of the elastic soft mold to obtain the orthodontic traction device fixedly arranged on the surface of the tooth.
When the orthodontic traction device is manufactured, injection molding materials are injected into an elastic soft mold of a mold, the mold filled with the injection molding materials is attached to the surface of a tooth, after the injection molding materials are condensed, the elastic soft mold is separated from the plastic materials condensed into the orthodontic traction device from a demolding opening, and the condensed injection molding materials are integrated with the surface of the tooth to form the orthodontic traction device on the surface of the tooth so as to replace the function of a traction hook. The traction device can be tightly adhered to the tooth surface of the tooth and is not easy to fall off; the color of the oral cavity is consistent with that of the oral cavity, and the appearance is not influenced; the metal product with high cost is not needed to be used during the manufacturing, so that the price advantage is achieved; and the manufacture is very convenient, and much time is not needed. In addition, the separated elastic soft die can be recycled, so that the manufacturing cost of the orthodontic traction device is reduced.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (12)
1. A manufacturing method of an orthodontic traction device die is characterized by comprising the following steps:
preparing a physical model of the orthodontic traction device;
pressing the physical model by using a first plastic material to prepare an elastic soft mold coating the physical model, wherein a demolding opening for taking out the physical model is formed in the elastic soft mold after the elastic soft mold is prepared;
pressing the physical model coated with the elastic soft mold by using a second plastic material to prepare a rigid hard mold coated with the elastic soft mold; after the rigid hard mold is manufactured, a hollow part used for exposing the demolding opening is formed on the rigid hard mold;
opening a die taking port on the rigid hard die;
taking out the physical model coated with the elastic soft mold from the mold taking opening to obtain a rigid hard mold with the mold taking opening;
releasing the physical model from a demolding opening of the elastic soft mold to obtain the elastic soft mold;
and putting the elastic soft die out of the physical model into the rigid hard die from the die taking opening of the rigid hard die again to prepare the die of the orthodontic traction device, wherein the die taking opening on the elastic soft die is exposed to the hollow part of the rigid hard die after the elastic soft die is put into the rigid hard die again.
2. The method of making an orthodontic traction device die of claim 1 wherein, in the step of creating a physical model of the orthodontic traction device, the physical model is created using the sub-steps of:
modeling the orthodontic traction device to obtain a 3D model of the orthodontic traction device;
and printing the 3D model of the modeled orthodontic traction device to obtain a physical model of the orthodontic traction device.
3. The method of making an orthodontic traction device mold of claim 1 wherein the first plastic material is a thermoplastic material and wherein in the step of compression molding the physical model of the orthodontic traction device with the first plastic material, the first plastic material compression molds the physical model of the orthodontic traction device by the sub-steps of:
heating the first plastic material until the first plastic material softens;
stamping the physical model by using a die-pressing device through the softened first plastic material until the softened first plastic material is completely attached to the outer surface of the physical model;
and cooling the first plastic material until the first plastic material is molded to obtain the elastic soft mold for coating the physical model.
4. The method of making an orthodontic traction device mold of claim 1 wherein the demolding opening is formed directly in the first plastic material as the physical model of the orthodontic traction device is compression molded;
or the demolding opening is formed after the elastic soft mold is manufactured.
5. The method of making an orthodontic traction device mold as defined in claim 1, wherein the second plastic material is a thermoplastic material, and in the step of compression molding the physical model covering the elastic soft mold with the second plastic material, the second plastic material compression molds the physical model covering the elastic soft mold by the sub-steps of:
heating the second plastic material until the second plastic material softens;
stamping the second softened plastic material to the elastic soft die attached to the physical model by using die pressing equipment until the second softened plastic material is completely attached to the elastic soft die;
and cooling the second plastic material until the second plastic material is molded to obtain the rigid hard mold.
6. The method of making an orthodontic traction device mold of claim 1 wherein the hollowed out portion is formed directly by the second plastic material when compression molding the flexible elastic mold to which the physical model is attached;
or the hollow part is formed by independently manufacturing the rigid hard mould.
7. The method for making the orthodontic traction device die of claim 1, wherein in the step of opening the die-taking opening to the rigid die, the die-taking opening is opened by the following substeps:
arranging a cutting line on the rigid hard die;
and cutting along the cutting line, cutting off the rigid hard die on one side of the cutting line, wherein the position of the cut-off part is the die taking port of the rigid hard die.
8. The method of making the orthodontic traction device mold of claim 7 wherein the cut-away portion of the rigid die is at least one-half of the rigid die.
9. The method for making the orthodontic traction device die of claim 1, further comprising the steps of, after the step of releasing the physical model from the die release opening of the soft die to obtain the elastic soft die:
and finishing the rigid hard die.
10. A manufacturing method of an orthodontic traction device is characterized by comprising the following steps: the method comprises the following steps:
providing a mold made by the method of making an orthodontic traction device mold of any one of claims 1 to 9;
injecting injection molding materials into the elastic soft mold from a demolding opening of the elastic soft mold through the hollow-out part of the rigid hard mold;
after the elastic soft die is filled with the injection molding material, the die is attached to the surface of the tooth through the injection molding material;
after the injection molding material is condensed into an orthodontic traction device, separating the rigid hard mold and the elastic soft mold from a mold taking port of the rigid hard mold;
and separating the orthodontic traction device from the demolding opening of the elastic soft mold to obtain the orthodontic traction device fixedly arranged on the surface of the tooth.
11. The method of manufacturing an orthodontic traction device of claim 10 wherein the injected material is a medical grade composite resin that is cured by light.
12. A manufacturing method of an orthodontic traction device is characterized by comprising the following steps: the method comprises the following steps:
preparing a physical model of the orthodontic traction device;
pressing the physical model by using a plastic material to prepare an elastic soft mold coating the physical model, wherein a demolding opening for taking out the physical model is formed in the elastic soft mold after the elastic soft mold is prepared;
releasing the physical model from a demolding opening of the elastic soft mold to obtain the elastic soft mold; injecting injection molding materials into the elastic soft mold from a demolding opening of the elastic soft mold;
after the elastic soft die is filled with the injection molding material, the injection molding material is used for attaching the die to the surface of the tooth;
and after the injection molding material is condensed into the orthodontic traction device, separating the elastic soft mold from the orthodontic traction device through a demolding opening of the elastic soft mold to obtain the orthodontic traction device fixedly arranged on the surface of the tooth.
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