CN112754692B - Preparation method of invisible appliance, invisible appliance and application - Google Patents
Preparation method of invisible appliance, invisible appliance and application Download PDFInfo
- Publication number
- CN112754692B CN112754692B CN202110019974.4A CN202110019974A CN112754692B CN 112754692 B CN112754692 B CN 112754692B CN 202110019974 A CN202110019974 A CN 202110019974A CN 112754692 B CN112754692 B CN 112754692B
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- hook
- thermoplastic
- appliance
- tooth
- resin dental
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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
- A61C7/08—Mouthpiece-type retainers or positioners, e.g. for both the lower and upper arch
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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
- A61C7/002—Orthodontic computer assisted systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C9/00—Impression cups, i.e. impression trays; Impression methods
- A61C9/004—Means or methods for taking digitized impressions
- A61C9/0046—Data acquisition means or methods
Abstract
The invention discloses a preparation method of an invisible appliance, the invisible appliance and application thereof, wherein the preparation method comprises the following steps: s1, printing to obtain a resin dental model, wherein a thermoplastic hook is connected to the position of a tooth to be pulled of the resin dental model; s2, performing hot-press molding and film pressing on the resin dental model obtained in the step S1, removing the resin dental model and the thermoplastic hooks to obtain a hot-press film of the appliance, wherein an accommodating cavity matched with the shape of the thermoplastic hooks is formed in the position, corresponding to the thermoplastic hooks, of the hot-press film of the appliance; s3, placing a treatment hook in the accommodating cavity. The invisible appliance is accurate in positioning, more comfortable to wear and convenient to take off and wear, the appliance does not need to be punched, the integrity of the invisible appliance is kept, no force-bearing breakpoint exists, the rigidity of the appliance is stronger, and the treatment effect is improved.
Description
Technical Field
The invention relates to the technical field of orthodontics, in particular to a preparation method of an invisible appliance, the invisible appliance and application.
Background
Along with the increasing improvement of living standard of people, people pay more and more attention to tooth health and beauty. The technology of bracket-free invisible orthodontic is rapidly emerging and developing.
The nature of orthodontics is the movement of teeth, so effective traction on teeth is a crucial part in the orthodontic process, and is related to the length of the orthodontic period, the efficiency and effect of treatment, the user experience and the like. The traditional invisible orthodontic method in the past is troubled by single traction mode, inconvenient wearing, high technical requirements on operating doctors and the like. In addition, the traditional invisible orthodontic correction punching mode is easy to deform the invisible orthodontic appliance, so that the strength of the orthodontic appliance is reduced, and the correction effect is greatly reduced; the edge of the punched hole is easy to damage the oral cavity of a patient, scratch the tongue and mucous membranes, oral ulcer and the like; inconvenient to take off and wear; the traction hook stuck in the mouth of a patient has high technical requirements on clinicians and cannot be widely used; the intermediate links are too many, and after doctors and appliances are designed to produce and the accessories are attached by clinicians, the final position of the traction hook is seriously deviated from the position of the traction hook designed by the scheme, so that the treatment effect is reduced. How to overcome the above disadvantages to prepare a new invisible appliance is a technical problem to be solved.
Disclosure of Invention
Therefore, the invention provides a preparation method of an invisible appliance, the invisible appliance and application thereof, and aims to solve the problems of inconvenience in taking and putting, serious deviation of a traction hook position and poor treatment effect of the existing appliance.
In order to achieve the above purpose, the invention provides the following technical scheme:
according to a first aspect of the present invention, the present invention provides a method for preparing an invisible appliance, the method comprising the following steps: s1, printing to obtain a resin dental model, wherein a thermoplastic hook is connected to the position of a tooth to be pulled of the resin dental model; the thermoplastic hook comprises a windowing cylinder and a curved base attached to the surface of a tooth, the curved base protrudes upwards to form a curved surface shape so as to attach to the outer side surface of the tooth to be corrected, the windowing cylinder is connected to the upper surface of the curved base, and the windowing cylinder and the curved base are respectively provided with a circular through hole along the vertical direction so as to form a cylindrical channel; s2, performing hot-press molding and film pressing on the resin dental model obtained in the step S1, removing the resin dental model and the thermoplastic hooks to obtain a hot-press film of the appliance, wherein an accommodating cavity matched with the shape of the thermoplastic hooks is formed in the position, corresponding to the thermoplastic hooks, of the hot-press film of the appliance; s3, placing a treatment hook in the accommodating cavity, wherein the shape of the treatment hook is matched with that of the accommodating cavity; the treatment hook comprises a drawing pin-shaped hook and the thermoplastic hook, and the drawing pin-shaped hook is inserted into the accommodating cavity; the top hook of the drawing pin-shaped hook is exposed out of the accommodating cavity.
Further, the resin dental cast in step S1 is obtained by: t1, obtaining a digital model of the tooth, and printing the digital model to obtain an initial-stage resin tooth model; and T2, connecting the thermoplastic hook at the position of the initial resin dental model corresponding to the tooth to be pulled.
Further, step T2 includes: the thermoplastic hook is connected with the initial resin dental model in an adhesive mode.
Further, step T2 includes: punching holes at positions of the initial resin dental model corresponding to teeth to be pulled, placing the thermoplastic hooks at the punching positions, and inserting positioning nails into the cylindrical channels and the punching holes.
Further, step T2 further includes: after the positioning nail is inserted into the cylindrical channel and the perforation, the positioning nail exposed outside the cylindrical channel is removed.
Further, the resin dental model in step S1 is obtained by: and combining the parameters of the thermoplastic hook and the tooth parameters and then printing to obtain the resin tooth mold.
Further, the printing comprises the steps of: and inputting the parameters into American immediate orthodontic software, and printing by a three-dimensional rapid prototyping technology.
Further, the preparation method further includes the following steps between step S2 and step S3: forming a round hole in the position, corresponding to the cylindrical channel, of the appliance hot-pressing film so as to expose the top hook; the preparation method further includes a cutting step after step S3.
According to a second aspect of the invention, the invention provides an invisible appliance prepared based on the preparation method.
According to a third aspect of the invention, there is provided use of the invisible appliance in straightening teeth, the use comprising: the invisible orthodontic appliance is sleeved on the teeth of a patient, the treatment hook is positioned at the position of the teeth to be pulled, one end of the rubber ring is hung on the top hook, and the other end of the rubber ring is hung on other teeth or nails driven into alveolar bones.
The invention has the following advantages:
1. the problem of the traditional traction system is well solved, and a traction mode of effectively combining traditional orthodontics and invisible orthodontics endows the invisible appliance with a brand-new traction treatment mode in the orthodontic industry;
2. the positioning is accurate, the position of the treatment hook is accurately marked by a scheme design doctor through a computer, so that the position of the traction hook of the appliance worn by the patient is consistent with the original design scheme;
3. the special simple wearing and taking mode does not need a doctor to paste a traction hook, and the treatment hook is only needed to be put into the accommodating cavity before wearing, so that the operation is convenient and quick, and the operation difficulty of the doctor is reduced;
4. the appliance does not need to be punched, the integrity of the invisible appliance is kept, no force-bearing breakpoint exists, the rigidity of the appliance is stronger, and the treatment effect is improved;
5. the production mode is simple, compared with the similar traction system in the same industry, the production mode is simple, low-temperature plasma surface treatment and other processes are not needed, the cost is lower, and the effect is better;
6. the patient wears more comfortably, takes off and wears the convenience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope of the present invention.
Fig. 1 is a schematic structural view of a thermoplastic hook and a positioning nail in a disassembled state in a preparation method of an invisible appliance provided in embodiments 1 and 2 of the present invention;
FIG. 2 is a schematic structural diagram of a resin dental cast in the method for manufacturing the invisible orthodontic appliance provided in the embodiments 1, 2 and 5 of the invention;
FIG. 3 is a schematic structural diagram of a resin dental cast and a hot-pressed film of an appliance in the method for preparing an invisible appliance provided in embodiments 1, 2 and 5 of the present invention;
fig. 4 is a schematic structural diagram of a treatment hook in the preparation method of the invisible appliance provided in embodiments 1 and 2 of the present invention;
FIG. 5 is a schematic structural view of the invisible appliance provided in example 9 of the present invention in a use state in example 10;
in the figure:
1. a thermoplastic hook; 2. a treatment hook; 3. positioning nails; 4. resin dental cast; 5. hot pressing the appliance; 6. the patient's teeth; 7. a rubber ring; 11. a windowing cylinder; 12. a curved surface base; 13. a cylindrical passage; 21. a drawing pin-shaped hook.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The present embodiment provides a method for manufacturing an invisible appliance, as shown in fig. 1 to 4, the method includes the following steps:
s1, printing to obtain a resin dental model 4, wherein a thermoplastic hook 1 is connected to the position of a tooth to be pulled of the resin dental model 4 as shown in figure 2;
the thermoplastic hook 1 comprises a windowing cylinder 11 and a curved base 12 attached to the surface of a tooth, wherein the curved base 12 protrudes upwards to form a curved surface (a curved cuboid shape) so as to be attached to the outer side surface (the radian of the curved surface is equal to or close to that of the surface of the tooth) of the tooth to be corrected, the windowing cylinder 11 is connected to the upper surface of the curved base 12, and the windowing cylinder 11 and the curved base 12 are respectively provided with circular through holes in the vertical direction so as to form a cylindrical channel 13;
s2, performing hot-press molding and film pressing on the resin dental model 4 obtained in the step S1, removing the resin dental model 4 and the thermoplastic hook 1 to obtain a hot-press film 5 of the appliance, wherein a containing cavity matched with the shape of the thermoplastic hook 1 is formed in the position, corresponding to the thermoplastic hook 1, of the hot-press film 5 of the appliance;
s3, placing a treatment hook 2 in the accommodating cavity, wherein the shape of the treatment hook 2 is matched with that of the accommodating cavity;
the treatment hook 2 comprises a drawing pin-shaped hook 21 and the thermoplastic hook 1, and the drawing pin-shaped hook is inserted into the accommodating cavity; the top hook (diameter equal to the diameter of the fenestration cylinder 11) of the thumbtack-like hook is exposed outside the containment cavity.
In a preferred embodiment, the bottom surface of the window column 11 is also convex upward to form a curved surface so as to be connected with the upper surface of the curved base 12 in a fitting manner; the sizes of the windowing cylinder 11 and the curved base 12 are determined according to the size of teeth and the purpose of correction, and specifically, the size of the curved base 12 is not larger than the size of the teeth to be corrected and can be designed into different sizes.
In the preparation method of the embodiment, the appliance hot-pressing film 5 is obtained by hot-pressing a resin dental model 4, the resin dental model 4 is connected with the thermoplastic hook 1 at the position of the tooth to be pulled, and the treatment hook 2 comprises the staple-shaped hook 21 and the thermoplastic hook 1, so that when the treatment hook 2 is placed in the accommodating cavity of the appliance hot-pressing film 5, the shape of the treatment hook 2 can be well matched with the accommodating cavity; the preparation method is ingenious and convenient.
Example 2
The manufacturing method as described in example 1, as shown in fig. 1 to 4, the resin dental model 4 described in step S1 is obtained by the following method:
t1, obtaining a digital model of the tooth, and printing the digital model to obtain an initial-stage resin tooth model;
and T2, connecting the thermoplastic hook 1 at the position of the initial resin dental model corresponding to the tooth to be pulled.
Before the step T1, collecting the parameters of the teeth of the patient to be corrected to construct a digital model, wherein the digital model is completely determined by the teeth parameters of the patient and does not contain the parameters of the thermoplastic hook 1, and then the step T2 connects the thermoplastic hook 1 to the position of the initial resin dental model corresponding to the teeth to be pulled, so as to obtain the resin dental model 4. The resin dental cast 4 prepared by the embodiment is carried out in two steps, and the operation is simple and fast.
Example 3
The preparation process as described in example 2, step T2 comprising: the thermoplastic hook 1 is bonded to the initial resin dental cast. The bonding connection is such that the thermoplastic hook 1 can be firmly connected to the initial resin dental cast.
Example 4
The preparation method as described in example 2, as shown in fig. 2, step T2 includes: punching holes at positions of the initial resin dental model corresponding to teeth to be pulled, placing the thermoplastic hooks 1 at the punching positions, and inserting positioning nails 3 into the cylindrical channels 13 and the punching holes. The positioning nail 3 can be connected in the cylindrical channel 13 with in punching by interference, or, the positioning nail 3 can be in pegging graft to the cylindrical channel 13 with before punching the location nail 3 surface coating gluing layer, and the connection between the positioning nail 3 and the thermoplastic hook 1 is firm more like this.
Example 5
The preparation method of embodiment 4, as shown in fig. 2 and 3, step T2 further includes:
after inserting the positioning pin 3 into the cylindrical passage 13 and the punching, the positioning pin 3 exposed to the outside of the cylindrical passage 13 is removed. The part of the positioning nail 3 outside the cylindrical channel 13 can be cut off at first, then the outer surface of the top of the positioning nail 3 is polished to be in a smooth state, and therefore the accommodating cavity in the appliance hot pressing film 5 obtained through subsequent hot pressing molding and film pressing can be matched with the treatment hook 2 more accurately.
Example 6
The manufacturing method as described in example 1, the resin dental model 4 described in step S1 is obtained by the following method:
and combining the parameters of the thermoplastic hook 1 and the tooth parameters and then printing to obtain the resin dental model 4.
The method for preparing the resin dental model 4 in the embodiment is different from the method for preparing the resin dental model 4 in the embodiment 2, the method is completed in one step, the parameters of the teeth of the patient to be corrected are collected, the size parameters of the thermoplastic hooks 1 are combined at the same time, the parameters of the teeth combined with the thermoplastic hooks 1 are obtained, then a digital model is constructed based on the parameters, the resin dental model 4 obtained by printing the digital model forms a bulge with the same shape as the thermoplastic hooks 1 at the positions of the teeth to be pulled, and the shape of the bulge is completely the same as that of the thermoplastic hooks 1, so the resin dental model 4 prepared in the way is connected with the thermoplastic hooks 1 at the positions of the teeth to be pulled; the method for preparing the resin dental cast 4 according to this embodiment is simpler, more convenient, and can be completed in one step, more rapidly than the method according to embodiment 2.
Example 7
The production method according to any one of embodiments 1 to 6, wherein the printing includes the steps of: and inputting the parameters into American immediate orthodontic software, and printing by a three-dimensional rapid prototyping technology. The printing method is quick and easy to operate.
Example 8
The method of claim 1, further comprising the following steps between step S2 and step S3: forming a round hole in the position, corresponding to the cylindrical channel 13, of the appliance hot-pressing film 5 so as to expose the top hook;
the preparation method further includes a cutting step after step S3.
The size of the round hole is enough to expose the top hook, and the cutting step comprises cutting along a gum line so as to obtain the final invisible appliance.
Example 9
The embodiment provides the invisible appliance prepared by the preparation method of any one of embodiments 1 to 8.
The invisible appliance of the embodiment can improve the effectiveness of force application of traditional invisible appliance to jaw traction, can also provide a plurality of traction modes, and plays a good role in a plurality of traction modes such as malocclusion traction and bidirectional traction.
Example 10
This example provides a use of the invisible appliance of example 9 in straightening teeth, the use comprising: as shown in fig. 5, the invisible orthodontic appliance is sleeved on the teeth 6 of the patient, the treatment hook 2 is positioned at the position of the teeth to be pulled, one end of the rubber ring 7 is hung on the top hook, and the other end of the rubber ring 7 is hung on other teeth or nails driven into alveolar bones.
Hang the one end of rubber ring 7 and locate on the couple of top and then can remove the treatment, when the couple receives traction force, on the ware was rescued to the accessible treatment hook 2 transmission stealthy, the ware rethread is rescued to the stealthy parcel nature of ware and is transmitted the tooth and treat the removal, can obtain fine correction purpose.
The thermoplastic hook 1 and the therapeutic hook 2 according to the above embodiments of the present invention may be made of a biocompatible high hardness resin material, such as a non-toxic resin that is solid at a temperature of a human mouth.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, it is intended that all such modifications and alterations be included within the scope of this invention as defined in the appended claims.
Claims (9)
1. A preparation method of an invisible orthodontic appliance is characterized by comprising the following steps:
s1, printing to obtain a resin dental model (4), wherein a thermoplastic hook (1) is connected to the position of a tooth to be pulled of the resin dental model (4);
the thermoplastic hook (1) comprises a windowing cylinder (11) and a curved base (12) attached to the surface of a tooth, the curved base (12) protrudes upwards to form a curved surface shape so as to be attached to the outer side surface of the tooth to be corrected, the windowing cylinder (11) is connected to the upper surface of the curved base (12), and the windowing cylinder (11) and the curved base (12) are respectively provided with a circular through hole along the vertical direction so as to form a cylindrical channel (13);
s2, performing hot-press molding and film pressing on the resin dental model (4) obtained in the step S1, removing the resin dental model (4) and the thermoplastic hook (1) to obtain a corrector hot-press film (5), wherein a containing cavity matched with the shape of the thermoplastic hook (1) is formed in the position, corresponding to the thermoplastic hook (1), of the corrector hot-press film (5);
s3, placing a treatment hook (2) in the accommodating cavity, wherein the shape of the treatment hook (2) is matched with that of the accommodating cavity;
the treatment hook (2) comprises a drawing pin-shaped hook (21) and the thermoplastic hook (1), and the drawing pin-shaped hook is inserted into the accommodating cavity; the top hook of the drawing pin-shaped hook is exposed out of the accommodating cavity.
2. The method for producing a dental mold according to claim 1, wherein the resin dental mold (4) in step S1 is obtained by:
t1, obtaining a digital model of the tooth, and printing the digital model to obtain an initial-stage resin tooth model;
and T2, connecting the thermoplastic hook (1) at the position of the initial resin dental model corresponding to the tooth to be pulled.
3. The method according to claim 2, wherein step T2 includes: the thermoplastic hook (1) is connected with the initial resin dental cast in an adhesion mode.
4. The method according to claim 2, wherein step T2 includes: punching holes at the positions of the initial resin dental model corresponding to teeth to be pulled, placing the thermoplastic hooks (1) at the punching positions, and inserting positioning nails (3) into the cylindrical channels (13) and the punching holes.
5. The method according to claim 4, wherein step T2 further comprises:
after inserting the positioning pin (3) into the cylindrical channel (13) and the perforation, removing the positioning pin (3) exposed outside the cylindrical channel (13).
6. The method for producing a dental mold according to claim 1, wherein the resin dental mold (4) in step S1 is obtained by:
and combining the parameters of the thermoplastic hook (1) with the tooth parameters and then printing to obtain the resin dental model (4).
7. The production method according to any one of claims 1 to 6, wherein the printing includes the steps of: and inputting the parameters into American immediate orthodontic software, and printing by a three-dimensional rapid prototyping technology.
8. The method of claim 1, further comprising the steps of, between step S2 and step S3: forming a round hole in the position, corresponding to the cylindrical channel (13), of the appliance hot-pressing film (5) to expose the top hook;
the preparation method further comprises a cutting step after the step S3.
9. An invisible appliance prepared based on the preparation method of any one of claims 1 to 6 or 8.
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| CN202110019974.4A CN112754692B (en) | 2021-01-07 | 2021-01-07 | Preparation method of invisible appliance, invisible appliance and application |
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| CN202110019974.4A CN112754692B (en) | 2021-01-07 | 2021-01-07 | Preparation method of invisible appliance, invisible appliance and application |
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| CN112754692B true CN112754692B (en) | 2022-05-10 |
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