WO2022218303A1 - Method for manufacturing shell-shaped dental instrument - Google Patents

Method for manufacturing shell-shaped dental instrument Download PDF

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Publication number
WO2022218303A1
WO2022218303A1 PCT/CN2022/086357 CN2022086357W WO2022218303A1 WO 2022218303 A1 WO2022218303 A1 WO 2022218303A1 CN 2022086357 W CN2022086357 W CN 2022086357W WO 2022218303 A1 WO2022218303 A1 WO 2022218303A1
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Prior art keywords
shell
cavity
shaped
shaped dental
dental instrument
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PCT/CN2022/086357
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French (fr)
Chinese (zh)
Inventor
李俊生
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无锡时代天使生物科技有限公司
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Publication of WO2022218303A1 publication Critical patent/WO2022218303A1/en

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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

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  • the present application generally relates to a method of making a shell-shaped dental appliance.
  • Shell-shaped dental appliances eg, shell-shaped dental appliances made of polymer materials are becoming more and more popular due to their beauty, convenience, and ease of cleaning.
  • some additional shapes or structures (such as jaw plates or jaw pads, etc.) need to be formed on the shell-shaped dental appliance to assist orthodontic treatment, and these additional shapes or structures are usually hollow.
  • the inventors of the present application have realized that such a structure has insufficient strength and is easily deformed or damaged due to forces such as occlusion.
  • One aspect of the present application provides a method for manufacturing a shell-shaped dental appliance, comprising: obtaining a shell-shaped main body of the shell-shaped dental appliance, which is integrally shell-shaped to form a first cavity for accommodating teeth and a connection with the first cavity a second cavity that communicates with; and injecting filling material into the second cavity of the shell-like body worn on the solid model of the tooth, so that it solidifies to form a solid element fixed in the second cavity, and obtains a material comprising: The shell-like body and the shell-like dental instrument of the solid element fixed in the second cavity.
  • the solid element is a jaw plate or jaw pad.
  • the manufacturing method of the shell-shaped dental appliance further comprises: acquiring a first three-dimensional digital model representing the teeth; adding a three-dimensional digital model of the solid element at a predetermined position of the first three-dimensional digital model model to obtain a three-dimensional digital model of the male mold, wherein, in the three-dimensional digital model of the male mold, the main body corresponding to the teeth and the solid element are fixed to each other with weak connections;
  • the three-dimensional digital model controls the 3D printing equipment to make the male mold;
  • the shell-shaped main body of the shell-shaped dental instrument is formed by pressing the film on the male mold with a hot film forming process; and the solid elements on the male mold are removed, A solid model of the tooth is obtained.
  • the filler material is a photocurable glue.
  • the cured parameters of the light-curable adhesive are as follows: elastic modulus 200-1000MPa, water absorption less than 5%, and shear bonding strength with the shell-shaped dental instrument 5N/mm2-10N/ mm2.
  • the cured parameters of the photocurable adhesive are as follows: elastic modulus 200-500MPa, water absorption less than 3%, and shear bonding strength with the shell-shaped dental instrument 7N/mm2-10N/ mm2.
  • the manufacturing method of the shell-shaped dental instrument further comprises: forming an injection hole on the wall of the second cavity of the shell-shaped body, and the filling material is injected into the first cavity through the injection hole. Two chambers.
  • a shell-shaped dental appliance comprising: an integral shell-shaped body forming a first cavity containing a plurality of teeth and a second cavity in communication with the first cavity; and a solid element, It is formed after curing with the photocurable glue filled in the second cavity.
  • the second cavity is located on the occlusal surface, and the geometry of the second cavity enables the solid element accommodated in the cavity with the matching geometry to be released smoothly along the occlusal direction.
  • the cured parameters of the photocurable adhesive are as follows: elastic modulus 200-500MPa, water absorption less than 3%, and shear bonding strength with the shell-shaped dental instrument 7N/mm2-10N/ mm2.
  • FIG. 1 is a schematic flow chart of a method for manufacturing a shell-shaped dental appliance in an embodiment of the application
  • Fig. 2A schematically shows the shell-shaped main body of the shell-shaped dental appliance which is formed by film pressing on the male mold according to an embodiment of the present application;
  • Figure 2B schematically shows the shell-shaped body of the shell-shaped dental appliance worn on the male mold after removal of the jaw plate
  • Figure 2C schematically shows the finished shell-shaped dental appliance
  • Fig. 3A schematically shows the connection between the jaw plate shown in Fig. 2A and the main body part in one embodiment
  • FIG. 3B schematically shows the structure of the bottom surface of the jaw plate shown in FIG. 3A after it is separated from the main body;
  • Fig. 4 schematically shows a cross-section of the shell-shaped main body of the shell-shaped dental appliance formed by film pressing on the male mold according to another embodiment of the present application along the curve of the dental arch.
  • One aspect of the present application provides a method of manufacturing a shell-shaped dental appliance for manufacturing such a shell-shaped dental appliance, which includes a shell-shaped body that forms a first cavity for accommodating teeth and communicates with the first cavity.
  • the cavity communicates with a second cavity, wherein the second cavity is filled with a filling material.
  • This manufacturing method is especially suitable for the shell-shaped dental appliance whose structure corresponding to the second cavity needs to bear a large external force during use and is prone to deformation or collapse.
  • a shell-shaped dental appliance with jaw plate) and a shell-shaped dental appliance with a jaw pad are examples of the shell-shaped dental appliance with a jaw pad.
  • FIG. 1 is a schematic flowchart of a manufacturing method 100 of a shell-shaped dental appliance in an embodiment of the present application.
  • a first three-dimensional digital model representing a patient's teeth is acquired.
  • Orthodontic treatment with shell-like appliances requires a series of successive shell-like appliances, which are worn in sequence to sequentially reposition the patient's dentition from the original layout to the first intermediate layout , the second intermediate layout...the last intermediate layout, up to the target layout.
  • Each shell-shaped dental appliance corresponds to an orthodontic step for repositioning the patient's dentition from the initial layout of the orthodontic step to the target layout of the orthodontic step.
  • the shell-shaped dental appliance is an integral shell to form a cavity for accommodating teeth.
  • the geometry of the cavity basically matches the target layout of the corresponding treatment step.
  • the shell-shaped dental appliance is based on the target teeth of each treatment step. made for the layout.
  • the first three-dimensional digital model may be a three-dimensional digital model representing the target tooth layout for a certain treatment step.
  • the first three-dimensional digital model may also be a three-dimensional digital model representing the current dental layout of the patient.
  • the first three-dimensional digital model may be a three-dimensional digital model representing the entire dentition of the patient (eg, maxillary dentition or mandibular dentition), or a three-dimensional digital model representing part of the patient's dentition.
  • a 3D digital model representing the patient's current tooth layout can be obtained through intraoral scanning, and then a 3D digital model representing the corresponding tooth layout can be obtained through segmentation and movement. It will not be repeated here.
  • a three-dimensional digital model of a solid element is added to the first three-dimensional digital model to obtain a three-dimensional digital model of the male mold.
  • the male mold is used to shape the diaphragm material, and the heated and softened diaphragm material is pressed and formed on the male mold to obtain the shell-shaped main body of the shell-shaped dental instrument.
  • the three-dimensional digital model of the solid element and the three-dimensional digital model of the patient's teeth are fixed to each other with a weak connection.
  • a weak connection is a relatively weak connection, and its mechanical strength is much lower than the mechanical strength of the component (here refers to the three-dimensional solid model of the solid component and the patient's teeth) itself, and it can be broken with less force without causing damage to the component itself. damage.
  • thinner connections or spaced connections (eg, spaced point connections), etc.
  • the solid element can be solid or hollow.
  • the solid elements may be determined according to the specific use of the shell-shaped dental appliance. For example, if some patients have malocclusion, a Twin-Block can be used to adjust the patient's jaw position. Then, in the selected position of the selected teeth of the three-dimensional digital model of the patient's teeth (for example, , the occlusal surface of the molar region) to add a 3D digital model of the jaw plate.
  • a 3D printing device is controlled by using the three-dimensional digital model of the male mold to make a male mold.
  • the obtained male mold includes a main body portion and a solid element corresponding to the patient's teeth, and the two are fixed to each other by a weak connection, so that they can be disengaged from each other.
  • the shell-like body of the shell-like dental appliance is formed by pressing the film on the male mold in a hot pressing film forming process.
  • the hot pressing film forming process is a well-known technology in the industry, so it will not be described in detail here.
  • FIG. 2A schematically shows the shell-shaped main body 310 of the shell-shaped dental appliance formed by lamination on the male mold 200 according to an embodiment of the present application.
  • the male mold 200 includes a main body portion 201 corresponding to the patient's teeth and a jaw plate 203 added on the occlusal surface of the posterior teeth region, wherein the jaw plate 203 and the main body portion 201 are fixed to each other by a weak connection 205 .
  • the shell-shaped main body 310 of the shell-shaped dental appliance includes two cavities, the first cavity 311 is used to accommodate the patient's teeth, and the second cavity 313 communicated with the first cavity 311 is in conformity with the shape of the jaw plate 203 . match.
  • the shell-shaped body of the shell-shaped dental instrument is worn on the male mold from which the solid element has been removed, and the second cavity is filled with a filler material, which is cured to form a securement to the second cavity A solid element within the cavity, resulting in a shell-like dental instrument.
  • the shell-shaped main body 310 of the shell-shaped dental appliance can be removed from the male mold 200 first, and then the weak connection 205 between the main body 201 of the male mold 200 and the jaw plate 203 is broken, and the The jaw plate 203 is removed from the male mold 200, and then, the shell-shaped main body 310 of the shell-shaped dental appliance is refitted on the male mold 200 from which the jaw plate 203 was removed.
  • the second cavity 313 of the shell-shaped body 310 of the shell-shaped dental appliance is hollow.
  • the geometry of the second cavity 313 enables the solid element accommodated in the cavity 313 to be released smoothly along the occlusal direction.
  • FIG. 4 schematically shows a cross-section of the shell-shaped main body of the shell-shaped dental appliance formed by film pressing on the male mold according to another embodiment of the present application along the dental arch curve.
  • the projection of the jaw plate 203a is within the projection range of the tooth model 201a, and the lateral dimension of the jaw plate 203a decreases (or does not change) as it moves away from the tooth model 201a.
  • the two sides of the second cavity 313a are located between the two sides of the first cavity 311a, and the lateral size of the second cavity 313a decreases (or does not) as it moves away from the tooth model 201a. Change).
  • FIG. 3A schematically shows the connection between the jaw plate 203 shown in FIG. 2A and the main body 201 in one embodiment.
  • the outline of the jaw plate 203 on the tooth side is generally matched with the occlusal surface of the corresponding teeth, but microscopically, a plurality of concave structures are formed, and these concave structures are separated from the main body portion 201 to further weaken the gap between the jaw plate 203 and the main body portion 201 Connection.
  • FIG. 3B schematically shows the structure of the bottom surface of the jaw plate 203 shown in FIG. 3A after the jaw plate 203 is separated from the main body portion 201 .
  • injection holes 3131 may be formed in the wall of the second cavity of the shell-like body 310 of the shell-like dental appliance to inject filling material into the second cavity 313 .
  • a solid jaw plate 320 is formed and fixed in the second cavity 313 .
  • the shell-shaped main body 310 of the shell-shaped dental appliance is combined with the solid jaw plate 320 fixed in the second cavity 313 .
  • the male mold 200 from which the jaw plate 203 has been removed is removed to obtain a finished shell-shaped dental appliance 300 .
  • the filling material may be a photocurable glue.
  • different photocurable adhesives can be selected according to specific requirements to obtain different hardness after curing.
  • the filling material may be a silica-based material.
  • a light-curable adhesive whose base resin is urethane acrylate or acrylate can be used.
  • a photocurable adhesive with a shore hardness of D42-D70 after curing may be used.
  • a photocurable adhesive with an elongation at break after curing in the range of 100% to 300% may be used.
  • a light-curing adhesive with an elastic modulus of 200-1000 MPa after curing can be used, more preferably , a light-curing adhesive with an elastic modulus of 200 to 500 MPa after curing can be used.
  • a photocurable adhesive with a water absorption rate of less than 5% after curing can be used, and more preferably, a photocurable adhesive with a water absorption rate of less than 3% after curing can be used (for the test method, refer to ISO 62 or ASTM D570, in boiling water water absorption for two hours).
  • the shear bonding strength between the solid jaw plate 320 and the shell-shaped body 310 after curing may be in the range of 5-10N /mm 2 of light-cured glue, more preferably, a light-cured glue whose shear bond strength between the solid jaw plate 320 and the shell-like body 310 after curing is in the range of 7 to 10 N/mm 2 (refer to ISO for the test method) 4587).
  • a photocurable adhesive with a tensile strength after curing in the range of 10-20 MPa can be used.
  • Table 1 shows the test results of shell-shaped dental instruments with solid jaw plates made of light-cured glue with different parameters.
  • a retaining structure is formed on the jaw plate 203, for example, a concave or convex structure is formed on the side wall, or the size of one end close to the opposite jaw is larger than the opposite end, so that the second cavity 313 forms a corresponding retaining structure Therefore, the solid jaw plate 320 also forms a matching holding structure, so as to keep the solid jaw plate 320 fixed in the second cavity 213 .
  • a concave structure 207 is formed on the side wall of the jaw plate 203 , so that a concave structure 3133 is formed on the side wall of the second cavity 313 , so that the solid jaw plate 320 is formed after the filling material is cured.
  • a concave structure 321 matching the concavity and convexity is formed on the upper part to keep it fixed in the second cavity 213 .
  • a finished shell-shaped dental appliance 300 is schematically shown, which includes a shell-shaped body 310 , a first cavity 311 for accommodating teeth and a second cavity 313 communicating with the teeth are formed, and the shell-shaped dental appliance 300 further includes The solid jaw plate 320 fixed in the second cavity 313 .
  • the solid jaw plate 320 substantially matches the geometry of the abutting surface of the patient's teeth, which can make the shell-shaped dental appliance 300 more comfortable to wear and make the force more uniform.
  • two male molds can be made, the first male mold is a tooth model with a jaw plate formed for lamination to form a shell-shaped body of a shell-shaped dental appliance, and the second male mold is without jaw plate When the filling material is injected into the second cavity of the shell-shaped body, the shell-shaped body is worn on the second male mold.
  • the various diagrams may illustrate exemplary architectural or other configurations of the disclosed methods and systems, which may be helpful in understanding the features and functionality that may be included in the disclosed methods and systems. What is claimed is not limited to the exemplary architectures or configurations shown, and the desired features may be implemented in various alternative architectures and configurations. Additionally, with respect to the flowcharts, functional descriptions, and method claims, the order of blocks presented herein should not be limited to various embodiments that are implemented in the same order to perform the functions, unless the context clearly dictates otherwise. .

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

A method for manufacturing a shell-shaped dental instrument, the method comprising: obtaining a shell-shaped main body (310) of the shell-shaped dental instrument, wherein the shell-shaped main body has an integrated shell shape, and a first cavity (311) for accommodating teeth and a second cavity (313) in communication with the first cavity (311) are formed; and injecting a filling material into the second cavity (313) of the shell-shaped main body (310) borne on a solid model of the teeth, such that the filling material is solidified to form a solid element fixed in the second cavity (313), thereby obtaining the shell-shaped dental instrument comprising the shell-shaped main body (310) and the solid element fixed in the second cavity (313).

Description

壳状牙科器械的制作方法Manufacturing method of shell-shaped dental instrument 技术领域technical field
本申请总体上涉及一种壳状牙科器械的制作方法。The present application generally relates to a method of making a shell-shaped dental appliance.
背景技术Background technique
由于美观、便捷以及利于清洁等优点，以高分子材料制成的壳状牙科器械(例如，壳状牙齿矫治器)越来越受欢迎。Shell-shaped dental appliances (eg, shell-shaped dental appliances) made of polymer materials are becoming more and more popular due to their beauty, convenience, and ease of cleaning.
在一些情况下，壳状牙齿矫治器上需要形成一些额外的形状或结构(如颌板或颌垫等)，以辅助牙齿正畸治疗，这些额外的形状或结构通常是空心的。本申请的发明人意识到这种结构强度不足，容易因咬合等因素受力发生变形或破坏。In some cases, some additional shapes or structures (such as jaw plates or jaw pads, etc.) need to be formed on the shell-shaped dental appliance to assist orthodontic treatment, and these additional shapes or structures are usually hollow. The inventors of the present application have realized that such a structure has insufficient strength and is easily deformed or damaged due to forces such as occlusion.
因此，有必要提供一种新的壳状牙齿矫治器制作方法，以解决上述问题。Therefore, it is necessary to provide a new shell-shaped dental appliance manufacturing method to solve the above problems.
发明内容SUMMARY OF THE INVENTION
本申请的一方面提供了一种壳状牙科器械的制作方法，包括：获取壳状牙科器械的壳状主体，其为一体的壳状，形成容纳牙齿的第一腔以及与所述第一腔连通的第二腔；以及往佩戴于牙齿的实体模型上的所述壳状主体的所述第二腔内注入填充材料，使其固化形成固定于所述第二腔内的实体元件，得到包括所述壳状主体与固定于所述第二腔内的实体元件的壳状牙科器械。One aspect of the present application provides a method for manufacturing a shell-shaped dental appliance, comprising: obtaining a shell-shaped main body of the shell-shaped dental appliance, which is integrally shell-shaped to form a first cavity for accommodating teeth and a connection with the first cavity a second cavity that communicates with; and injecting filling material into the second cavity of the shell-like body worn on the solid model of the tooth, so that it solidifies to form a solid element fixed in the second cavity, and obtains a material comprising: The shell-like body and the shell-like dental instrument of the solid element fixed in the second cavity.
在一些实施方式中，所述实体元件是颌板或颌垫。In some embodiments, the solid element is a jaw plate or jaw pad.
在一些实施方式中，所述的壳状牙科器械的制作方法还包括：获取表示所述牙齿的第一三维数字模型；在所述第一三维数字模型的预定方位添加所述实体元件的三维数字模型，得到阳模的三维数字模型，其中，在所述阳模的三维数字模 型中，与所述牙齿对应的主体部与所述实体元件之间以弱连接相互固定；利用所述阳模的三维数字模型控制3D打印设备制作阳模；以热压膜成型工艺在所述阳模上压膜形成所述壳状牙科器械的壳状主体；以及将所述阳模上的实体元件移除，得到所述牙齿的实体模型。In some embodiments, the manufacturing method of the shell-shaped dental appliance further comprises: acquiring a first three-dimensional digital model representing the teeth; adding a three-dimensional digital model of the solid element at a predetermined position of the first three-dimensional digital model model to obtain a three-dimensional digital model of the male mold, wherein, in the three-dimensional digital model of the male mold, the main body corresponding to the teeth and the solid element are fixed to each other with weak connections; The three-dimensional digital model controls the 3D printing equipment to make the male mold; the shell-shaped main body of the shell-shaped dental instrument is formed by pressing the film on the male mold with a hot film forming process; and the solid elements on the male mold are removed, A solid model of the tooth is obtained.
在一些实施方式中，所述填充材料是光固化胶。In some embodiments, the filler material is a photocurable glue.
在一些实施方式中，所述光固化胶固化后的参数如下：弹性模量200～1000MPa，吸水率小于5％，以及与所述壳状牙科器械的剪切粘接强度5N/mm2～10N/mm2。In some embodiments, the cured parameters of the light-curable adhesive are as follows: elastic modulus 200-1000MPa, water absorption less than 5%, and shear bonding strength with the shell-shaped dental instrument 5N/mm2-10N/ mm2.
在一些实施方式中，所述光固化胶固化后的参数如下：弹性模量200～500MPa，吸水率小于3％，以及与所述壳状牙科器械的剪切粘接强度7N/mm2～10N/mm2。In some embodiments, the cured parameters of the photocurable adhesive are as follows: elastic modulus 200-500MPa, water absorption less than 3%, and shear bonding strength with the shell-shaped dental instrument 7N/mm2-10N/ mm2.
在一些实施方式中，所述的壳状牙科器械的制作方法还包括：在所述壳状主体的第二腔的壁上形成注入孔，所述填充材料是通过所述注入孔注入所述第二腔。In some embodiments, the manufacturing method of the shell-shaped dental instrument further comprises: forming an injection hole on the wall of the second cavity of the shell-shaped body, and the filling material is injected into the first cavity through the injection hole. Two chambers.
本申请的又一方面提供了一种壳状牙科器械，包括：一体的壳状主体，其形成容纳多颗牙齿的第一腔以及与所述第一腔连通的第二腔；以及实体元件，以填充于所述第二腔内的光固化胶固化后形成。Yet another aspect of the present application provides a shell-shaped dental appliance comprising: an integral shell-shaped body forming a first cavity containing a plurality of teeth and a second cavity in communication with the first cavity; and a solid element, It is formed after curing with the photocurable glue filled in the second cavity.
在一些实施方式中，所述第二腔位于咬合面，并且其几何形态使得收容于其中的几何形态与之匹配的实体元件能够沿咬合方向顺利脱出。In some embodiments, the second cavity is located on the occlusal surface, and the geometry of the second cavity enables the solid element accommodated in the cavity with the matching geometry to be released smoothly along the occlusal direction.
在一些实施方式中，所述光固化胶固化后的参数如下：弹性模量200～500MPa，吸水率小于3％，以及与所述壳状牙科器械的剪切粘接强度7N/mm2～10N/mm2。In some embodiments, the cured parameters of the photocurable adhesive are as follows: elastic modulus 200-500MPa, water absorption less than 3%, and shear bonding strength with the shell-shaped dental instrument 7N/mm2-10N/ mm2.
附图说明Description of drawings
以下将结合附图及其详细描述对本申请的上述及其他特征作进一步说明。应当理解的是，这些附图仅示出了根据本申请的若干示例性的实施方式，因此不应被视为是对本申请保护范围的限制。除非特别指出，附图不必是成比例的，并且其中类似的标号表示类似的部件。The above and other features of the present application will be further described below with reference to the accompanying drawings and the detailed description. It should be understood that these drawings only illustrate several exemplary embodiments according to the present application, and therefore should not be construed as limiting the scope of protection of the present application. Unless otherwise indicated, the drawings are not necessarily to scale and like numerals refer to like parts therein.
图1为本申请一个实施例中的壳状牙齿矫治器的制作方法的示意性流程图；1 is a schematic flow chart of a method for manufacturing a shell-shaped dental appliance in an embodiment of the application;
图2A示意性地展示了本申请一个实施例中在阳模上压膜成型的壳状牙齿矫治器的壳状主体；Fig. 2A schematically shows the shell-shaped main body of the shell-shaped dental appliance which is formed by film pressing on the male mold according to an embodiment of the present application;
图2B，示意性地展示了佩戴于去除颌板后的阳模上的壳状牙齿矫治器的壳状主体；Figure 2B, schematically shows the shell-shaped body of the shell-shaped dental appliance worn on the male mold after removal of the jaw plate;
图2C示意性地展示了壳状牙齿矫治器成品；Figure 2C schematically shows the finished shell-shaped dental appliance;
图3A，示意性地展示了一个实施例中图2A所示的颌板与主体部之间的连接方式；Fig. 3A schematically shows the connection between the jaw plate shown in Fig. 2A and the main body part in one embodiment;
图3B，示意性地展示了图3A所示颌板脱离主体部后其底面的结构；以及FIG. 3B schematically shows the structure of the bottom surface of the jaw plate shown in FIG. 3A after it is separated from the main body; and
图4，示意性地展示了本申请又一实施例中在阳模上压膜成型的壳状牙齿矫治器的壳状主体沿牙弓曲线的横截面。Fig. 4 schematically shows a cross-section of the shell-shaped main body of the shell-shaped dental appliance formed by film pressing on the male mold according to another embodiment of the present application along the curve of the dental arch.
具体实施方式Detailed ways
以下的详细描述中引用了构成本说明书一部分的附图。说明书和附图所提及的示意性实施方式仅仅出于是说明性之目的，并非意图限制本申请的保护范围。在本申请的启示下，本领域技术人员能够理解，可以采用许多其他实施方式，并且可以对所描述实施方式做出各种改变，而不背离本申请的主旨和保护范围。应当理解的是，在此说明并图示的本申请的各个方面可以按照很多不同的配置来布置、替换、组合、分离和设计，这些不同配置都在本申请的保护范围之内。In the following detailed description, reference is made to the accompanying drawings which form a part of this specification. The schematic embodiments mentioned in the description and drawings are for illustrative purposes only, and are not intended to limit the protection scope of the present application. Under the guidance of the present application, those skilled in the art can understand that many other embodiments may be employed and various changes may be made to the described embodiments without departing from the spirit and scope of the present application. It should be understood that the various aspects of the application described and illustrated herein may be arranged, substituted, combined, separated and designed in many different configurations, all of which are within the scope of the application.
本申请的一方面提供了一种壳状牙齿矫治器的制作方法，用于制作这样的壳状牙齿矫治器，它包括壳状主体，其形成用于容纳牙齿的第一腔以及与该第一腔连通的第二腔，其中，该第二腔填充有填充材料。这种制作方法尤其适用于第二腔所对应的结构在使用中需要承受较大外力而容易发生变形或塌陷的壳状牙齿矫治器，这样的例子包括但不限于具有颌位调整结构(如双颌板)的壳状牙齿矫治器以及具有颌垫的壳状牙齿矫治器。One aspect of the present application provides a method of manufacturing a shell-shaped dental appliance for manufacturing such a shell-shaped dental appliance, which includes a shell-shaped body that forms a first cavity for accommodating teeth and communicates with the first cavity. The cavity communicates with a second cavity, wherein the second cavity is filled with a filling material. This manufacturing method is especially suitable for the shell-shaped dental appliance whose structure corresponding to the second cavity needs to bear a large external force during use and is prone to deformation or collapse. A shell-shaped dental appliance with jaw plate) and a shell-shaped dental appliance with a jaw pad.
请参图1，为本申请一个实施例中的壳状牙齿矫治器的制作方法100的示意性流程图。Please refer to FIG. 1 , which is a schematic flowchart of a manufacturing method 100 of a shell-shaped dental appliance in an embodiment of the present application.
在101中，获取表示患者牙齿的第一三维数字模型。At 101, a first three-dimensional digital model representing a patient's teeth is acquired.
利用壳状牙齿矫治器进行牙齿正畸治疗，需要一系列逐次的壳状牙齿矫治器，按顺序依次佩戴这些壳状牙齿矫治器，以将患者牙列从原始布局依次重新定位到第一中间布局、第二中间布局......最后中间布局，直至目标布局。Orthodontic treatment with shell-like appliances requires a series of successive shell-like appliances, which are worn in sequence to sequentially reposition the patient's dentition from the original layout to the first intermediate layout , the second intermediate layout...the last intermediate layout, up to the target layout.
每一个壳状牙齿矫治器对应一个矫治步，用于将患者牙列从该矫治步的初始布局重新定位到该矫治步的目标布局。通常，壳状牙齿矫治器为一体的壳状，形成容纳牙齿的空腔，该空腔的几何形态与对应矫治步的目标布局基本匹配，壳状牙齿矫治器正是基于各矫治步的目标牙齿布局而制作。Each shell-shaped dental appliance corresponds to an orthodontic step for repositioning the patient's dentition from the initial layout of the orthodontic step to the target layout of the orthodontic step. Usually, the shell-shaped dental appliance is an integral shell to form a cavity for accommodating teeth. The geometry of the cavity basically matches the target layout of the corresponding treatment step. The shell-shaped dental appliance is based on the target teeth of each treatment step. made for the layout.
对于壳状牙齿矫治器，第一三维数字模型可以是表示某一矫治步的目标牙齿布局的三维数字模型。For shell-shaped dental appliances, the first three-dimensional digital model may be a three-dimensional digital model representing the target tooth layout for a certain treatment step.
根据壳状牙科器械的不同用途，第一三维数字模型也可以是表示患者当前牙齿布局的三维数字模型。Depending on the application of the shell-shaped dental appliance, the first three-dimensional digital model may also be a three-dimensional digital model representing the current dental layout of the patient.
根据壳状牙科器械的用途，第一三维数字模型可以是表示患者整个牙列(例如，上颌牙列或下颌牙列)的三维数字模型，也可以是表示患者部分牙列的三维数字模型。Depending on the purpose of the shell-shaped dental appliance, the first three-dimensional digital model may be a three-dimensional digital model representing the entire dentition of the patient (eg, maxillary dentition or mandibular dentition), or a three-dimensional digital model representing part of the patient's dentition.
获取患者牙齿的三维数字模型的方法已为业界所习知，例如，可以通过口内扫描先获取表示患者当前牙齿布局的三维数字模型，然后，通过分割和移动获得 表示对应牙齿布局的三维数字模型，此处不再赘述。The method of obtaining a 3D digital model of a patient's teeth has been known in the industry. For example, a 3D digital model representing the patient's current tooth layout can be obtained through intraoral scanning, and then a 3D digital model representing the corresponding tooth layout can be obtained through segmentation and movement. It will not be repeated here.
在103中，在所述第一三维数字模型上添加实体元件的三维数字模型，获得阳模的三维数字模型。In 103, a three-dimensional digital model of a solid element is added to the first three-dimensional digital model to obtain a three-dimensional digital model of the male mold.
阳模用于对膜片材料赋形，将经加热软化的膜片材料在阳模上压膜成型即可获得壳状牙科器械的壳状主体。The male mold is used to shape the diaphragm material, and the heated and softened diaphragm material is pressed and formed on the male mold to obtain the shell-shaped main body of the shell-shaped dental instrument.
所述实体元件的三维数字模型与所述患者牙齿的三维数字模型之间以弱连接相互固定。The three-dimensional digital model of the solid element and the three-dimensional digital model of the patient's teeth are fixed to each other with a weak connection.
弱连接是比较薄弱的连接，其机械强度远低于元件(在此是指实体元件与患者牙齿的三维实体模型)本身的机械强度，可以用较小的力将其破坏，而不对元件本身造成损坏。例如，较薄的连接，或间隔的连接(例如，间隔的点连接)等。A weak connection is a relatively weak connection, and its mechanical strength is much lower than the mechanical strength of the component (here refers to the three-dimensional solid model of the solid component and the patient's teeth) itself, and it can be broken with less force without causing damage to the component itself. damage. For example, thinner connections, or spaced connections (eg, spaced point connections), etc.
根据具体的需求，所述实体元件可以是实心的，也可以是空心的。According to specific requirements, the solid element can be solid or hollow.
在一个实施例中，所述实体元件可以根据壳状牙科器械的具体用途来确定。例如，一些患者存在错颌的情况，可以利用双颌板(Twin-Block)来调整患者的颌位，那么，可以在所述患者牙齿的三维数字模型的选定牙齿的选定位置处(例如，磨牙区的咬合面)上添加颌板的三维数字模型。In one embodiment, the solid elements may be determined according to the specific use of the shell-shaped dental appliance. For example, if some patients have malocclusion, a Twin-Block can be used to adjust the patient's jaw position. Then, in the selected position of the selected teeth of the three-dimensional digital model of the patient's teeth (for example, , the occlusal surface of the molar region) to add a 3D digital model of the jaw plate.
在105中，利用所述阳模的三维数字模型控制3D打印设备制作阳模。In 105, a 3D printing device is controlled by using the three-dimensional digital model of the male mold to make a male mold.
根据上述可知，所获得的阳模包括与所述患者牙齿相对应的主体部和实体元件，两者之间以弱连接相互固定，因此可相互脱离。As can be seen from the above, the obtained male mold includes a main body portion and a solid element corresponding to the patient's teeth, and the two are fixed to each other by a weak connection, so that they can be disengaged from each other.
在107中，以热压膜成型工艺在所述阳模上压膜形成壳状牙科器械的壳状主体。In 107, the shell-like body of the shell-like dental appliance is formed by pressing the film on the male mold in a hot pressing film forming process.
热压膜成型工艺为业界习知技术，故在此不再对其进行详细描述。The hot pressing film forming process is a well-known technology in the industry, so it will not be described in detail here.
请参图2A，示意性地展示了本申请一个实施例中在阳模200上压膜成型的壳状牙齿矫治器的壳状主体310。阳模200包括与所述患者牙齿对应的主体部201 和在其后牙区咬合面上添加的颌板203，其中，颌板203和主体部201之间是以弱连接205相互固定。壳状牙齿矫治器的壳状主体310包括两个腔，第一腔311用于***述患者的牙齿，与所述第一腔311连通的第二腔313与所述颌板203的形态相匹配。Please refer to FIG. 2A , which schematically shows the shell-shaped main body 310 of the shell-shaped dental appliance formed by lamination on the male mold 200 according to an embodiment of the present application. The male mold 200 includes a main body portion 201 corresponding to the patient's teeth and a jaw plate 203 added on the occlusal surface of the posterior teeth region, wherein the jaw plate 203 and the main body portion 201 are fixed to each other by a weak connection 205 . The shell-shaped main body 310 of the shell-shaped dental appliance includes two cavities, the first cavity 311 is used to accommodate the patient's teeth, and the second cavity 313 communicated with the first cavity 311 is in conformity with the shape of the jaw plate 203 . match.
在109中，将所述壳状牙科器械的壳状主体佩戴于去除了所述实体元件的阳模，并在所述第二腔中注满填充材料，使其固化形成固定于所述第二腔内的实体元件，得到壳状牙科器械。At 109, the shell-shaped body of the shell-shaped dental instrument is worn on the male mold from which the solid element has been removed, and the second cavity is filled with a filler material, which is cured to form a securement to the second cavity A solid element within the cavity, resulting in a shell-like dental instrument.
在一个实施例中，可以先把壳状牙齿矫治器的壳状主体310从阳模200上取下，接着，破坏阳模200的主体部201和颌板203之间的弱连接205，将所述颌板203从所述阳模200上移除，然后，将壳状牙齿矫治器的壳状主体310重新佩戴于移除颌板203的阳模200上，这时，由于颌板203已被移除，壳状牙齿矫治器的壳状主体310的第二腔313内为空心。In one embodiment, the shell-shaped main body 310 of the shell-shaped dental appliance can be removed from the male mold 200 first, and then the weak connection 205 between the main body 201 of the male mold 200 and the jaw plate 203 is broken, and the The jaw plate 203 is removed from the male mold 200, and then, the shell-shaped main body 310 of the shell-shaped dental appliance is refitted on the male mold 200 from which the jaw plate 203 was removed. When removed, the second cavity 313 of the shell-shaped body 310 of the shell-shaped dental appliance is hollow.
在一个实施例中，第二腔313的几何形态使得收容于其中的几何形态与之匹配的实体元件能够沿咬合方向顺利脱出。In one embodiment, the geometry of the second cavity 313 enables the solid element accommodated in the cavity 313 to be released smoothly along the occlusal direction.
请参图4，示意性地展示了本申请又一实施例中在阳模上压膜成型的壳状牙齿矫治器的壳状主体沿牙弓曲线的横截面。在牙齿模型201a高度方向上，颌板203a的投影位于牙齿模型201a的投影范围之内，且颌板203a的横向尺寸随着远离牙齿模型201a而缩小(或不变)。相应的，在牙齿模型201a高度方向垂直的方向上，第二腔313a的两侧面位于第一腔311a的两侧面之间，第二腔313a的横向尺寸随着远离牙齿模型201a而缩小(或不变)。Please refer to FIG. 4 , which schematically shows a cross-section of the shell-shaped main body of the shell-shaped dental appliance formed by film pressing on the male mold according to another embodiment of the present application along the dental arch curve. In the height direction of the tooth model 201a, the projection of the jaw plate 203a is within the projection range of the tooth model 201a, and the lateral dimension of the jaw plate 203a decreases (or does not change) as it moves away from the tooth model 201a. Correspondingly, in the direction perpendicular to the height direction of the tooth model 201a, the two sides of the second cavity 313a are located between the two sides of the first cavity 311a, and the lateral size of the second cavity 313a decreases (or does not) as it moves away from the tooth model 201a. Change).
请参图3A，示意性地展示了一个实施例中图2A所示的颌板203与主体部201之间的连接方式。Please refer to FIG. 3A , which schematically shows the connection between the jaw plate 203 shown in FIG. 2A and the main body 201 in one embodiment.
颌板203靠牙齿一侧的轮廓总体与对应牙齿的咬合面匹配，但微观上形成多处凹入结构，这些凹入结构与主体部201脱离，以进一步弱化颌板203与主体部201之间的连接。The outline of the jaw plate 203 on the tooth side is generally matched with the occlusal surface of the corresponding teeth, but microscopically, a plurality of concave structures are formed, and these concave structures are separated from the main body portion 201 to further weaken the gap between the jaw plate 203 and the main body portion 201 Connection.
请参图3B，示意性地展示了图3A所示颌板203脱离主体部201之后其底面的结构。Please refer to FIG. 3B , which schematically shows the structure of the bottom surface of the jaw plate 203 shown in FIG. 3A after the jaw plate 203 is separated from the main body portion 201 .
请参图2B，示意性地展示了佩戴于移除了颌板203的阳模200上的壳状牙齿矫治器的壳状主体310。在一个实施例中，可以在壳状牙齿矫治器的壳状主体310第二腔的壁上形成注入孔3131(例如，通过钻孔的方式)，以将填充材料注入第二腔313。Referring to FIG. 2B , the shell-shaped main body 310 of the shell-shaped dental appliance worn on the male mold 200 with the jaw plate 203 removed is schematically shown. In one embodiment, injection holes 3131 (eg, by drilling) may be formed in the wall of the second cavity of the shell-like body 310 of the shell-like dental appliance to inject filling material into the second cavity 313 .
注入第二腔313的填充材料固化后形成实体颌板320固定在第二腔313内，接着，将壳状牙齿矫治器的壳状主体310连同固定在第二腔313内的实体颌板320一起从移除了颌板203的阳模200上取下，得到壳状牙齿矫治器成品300。After the filling material injected into the second cavity 313 is cured, a solid jaw plate 320 is formed and fixed in the second cavity 313 . Next, the shell-shaped main body 310 of the shell-shaped dental appliance is combined with the solid jaw plate 320 fixed in the second cavity 313 . The male mold 200 from which the jaw plate 203 has been removed is removed to obtain a finished shell-shaped dental appliance 300 .
在一个实施例中，所述填充材料可以是光固化胶。在一个实施例中，可以根据具体需求选择不同的光固化胶，以获得不同的固化后硬度。在又一实施例中，所述填充材料可以是硅胶类材料。In one embodiment, the filling material may be a photocurable glue. In one embodiment, different photocurable adhesives can be selected according to specific requirements to obtain different hardness after curing. In yet another embodiment, the filling material may be a silica-based material.
在一个实施例中，可以采用基础树脂为聚氨酯丙烯酸酯或丙烯酸酯的光固化胶。In one embodiment, a light-curable adhesive whose base resin is urethane acrylate or acrylate can be used.
在一个实施例中，可以采用固化后邵氏硬度为D42～D70的光固化胶。In one embodiment, a photocurable adhesive with a shore hardness of D42-D70 after curing may be used.
在一个实施例中，可以采用固化后断裂伸长率范围为100％～300％的光固化胶。In one embodiment, a photocurable adhesive with an elongation at break after curing in the range of 100% to 300% may be used.
在一个实施例中，为使实体颌板320具备一定弹性，以保证牙齿接触时的舒适性，同时兼顾一定的刚度，可以采用固化后弹性模量为200～1000MPa的光固化胶，更优选地，可以采用固化后弹性模量为200～500MPa的光固化胶。In one embodiment, in order to make the solid jaw plate 320 have a certain elasticity, so as to ensure the comfort when the teeth are in contact, and at the same time take into account a certain rigidity, a light-curing adhesive with an elastic modulus of 200-1000 MPa after curing can be used, more preferably , a light-curing adhesive with an elastic modulus of 200 to 500 MPa after curing can be used.
由于制作实体颌板320的用胶量比仅起到粘接作用时更多，故要求其具有更低的吸水率。在一个实施例中，可以采用固化后吸水率小于5％的光固化胶，更优选地，可以采用固化后吸水率小于3％的光固化胶(测试方法可参考ISO 62或ASTM D570，在沸水中放置两小时的吸水率)。Since the amount of glue used to make the solid jaw plate 320 is larger than that used only for bonding, it is required to have a lower water absorption rate. In one embodiment, a photocurable adhesive with a water absorption rate of less than 5% after curing can be used, and more preferably, a photocurable adhesive with a water absorption rate of less than 3% after curing can be used (for the test method, refer to ISO 62 or ASTM D570, in boiling water water absorption for two hours).
为了避免在受压的情况下实体颌板320脱离壳状主体310，在一个实施例中，可以采用固化后实体颌板320与壳状主体310之间的剪切粘接强度范围为5～10N/mm 2的光固化胶，更优选地，可以采用固化后实体颌板320与壳状主体310之间的剪切粘接强度范围为7～10N/mm 2的光固化胶(测试方法参考ISO 4587)。 In order to prevent the solid jaw plate 320 from detaching from the shell-shaped body 310 under pressure, in one embodiment, the shear bonding strength between the solid jaw plate 320 and the shell-shaped body 310 after curing may be in the range of 5-10N /mm 2 of light-cured glue, more preferably, a light-cured glue whose shear bond strength between the solid jaw plate 320 and the shell-like body 310 after curing is in the range of 7 to 10 N/mm 2 (refer to ISO for the test method) 4587).
在一个实施例中，可以采用固化后拉伸强度范围为10～20MPa的光固化胶。In one embodiment, a photocurable adhesive with a tensile strength after curing in the range of 10-20 MPa can be used.
请参下表1，展示了具有以不同参数光固化胶制作的实体颌板的壳状牙科器械的测试结果。Please refer to Table 1 below, which shows the test results of shell-shaped dental instruments with solid jaw plates made of light-cured glue with different parameters.
Figure PCTCN2022086357-appb-000001
Figure PCTCN2022086357-appb-000001
表1Table 1
在一个实施例中，颌板203上形成保持结构，例如，在侧壁上形成凹或凸的结构，或靠对颌的一端尺寸大于相对的另一端，使得使得第二腔313形成对应的保持结构，进而使得实体颌板320也形成与之配合的保持结构，以将实体颌板320保持固定在第二腔213内。In one embodiment, a retaining structure is formed on the jaw plate 203, for example, a concave or convex structure is formed on the side wall, or the size of one end close to the opposite jaw is larger than the opposite end, so that the second cavity 313 forms a corresponding retaining structure Therefore, the solid jaw plate 320 also forms a matching holding structure, so as to keep the solid jaw plate 320 fixed in the second cavity 213 .
在一个实施例中，颌板203侧壁上形成凹入的结构207，使得第二腔313的侧壁上相应形成凹入的结构3133，进而使得所述填充材料固化后形成的实体颌板320上形成与之凹凸匹配的凹入结构321，以将其保持固定在第二腔213内。In one embodiment, a concave structure 207 is formed on the side wall of the jaw plate 203 , so that a concave structure 3133 is formed on the side wall of the second cavity 313 , so that the solid jaw plate 320 is formed after the filling material is cured. A concave structure 321 matching the concavity and convexity is formed on the upper part to keep it fixed in the second cavity 213 .
请参图2C，示意性地展示了壳状牙齿矫治器成品300，其包括壳状本体310，形成容纳牙齿的第一腔311和与其连通的第二腔313，壳状牙齿矫治器300还包括固定在第二腔313内的实体颌板320。Referring to FIG. 2C , a finished shell-shaped dental appliance 300 is schematically shown, which includes a shell-shaped body 310 , a first cavity 311 for accommodating teeth and a second cavity 313 communicating with the teeth are formed, and the shell-shaped dental appliance 300 further includes The solid jaw plate 320 fixed in the second cavity 313 .
实体颌板320与患者牙齿对接面的几何形态基本匹配，这能够使得壳状牙齿矫治器300的佩戴更为舒适，并且使受力更为均匀。The solid jaw plate 320 substantially matches the geometry of the abutting surface of the patient's teeth, which can make the shell-shaped dental appliance 300 more comfortable to wear and make the force more uniform.
在又一实施例中，可以制作两个阳模，第一阳模为形成有颌板的牙齿模型，用于压膜形成壳状牙齿矫治器的壳状主体，第二阳模为无颌板的牙齿模型，往壳状本体第二腔内注入填充材料时，将壳状本体佩戴于第二阳模。In yet another embodiment, two male molds can be made, the first male mold is a tooth model with a jaw plate formed for lamination to form a shell-shaped body of a shell-shaped dental appliance, and the second male mold is without jaw plate When the filling material is injected into the second cavity of the shell-shaped body, the shell-shaped body is worn on the second male mold.
尽管在此公开了本申请的多个方面和实施例，但在本申请的启发下，本申请的其他方面和实施例对于本领域技术人员而言也是显而易见的。在此公开的各个方面和实施例仅用于说明目的，而非限制目的。本申请的保护范围和主旨仅通过后附的权利要求书来确定。Although various aspects and embodiments of the present application are disclosed herein, other aspects and embodiments of the present application will also be apparent to those skilled in the art in light of the present application. The various aspects and embodiments disclosed herein are for purposes of illustration only and not limitation. The scope and spirit of this application are to be determined only by the appended claims.
同样，各个图表可以示出所公开的方法和***的示例性架构或其他配置，其有助于理解可包含在所公开的方法和***中的特征和功能。要求保护的内容并不限于所示的示例性架构或配置，而所希望的特征可以用各种替代架构和配置来实现。除此之外，对于流程图、功能性描述和方法权利要求，这里所给出的方框顺序不应限于以同样的顺序实施以执行所述功能的各种实施例，除非在上下文中明确指出。Likewise, the various diagrams may illustrate exemplary architectural or other configurations of the disclosed methods and systems, which may be helpful in understanding the features and functionality that may be included in the disclosed methods and systems. What is claimed is not limited to the exemplary architectures or configurations shown, and the desired features may be implemented in various alternative architectures and configurations. Additionally, with respect to the flowcharts, functional descriptions, and method claims, the order of blocks presented herein should not be limited to various embodiments that are implemented in the same order to perform the functions, unless the context clearly dictates otherwise. .
除非另外明确指出，本文中所使用的术语和短语及其变体均应解释为开放式的，而不是限制性的。在一些实例中，诸如“一个或多个”、“至少”、“但不限于”这样的扩展性词汇和短语或者其他类似用语的出现不应理解为在可能没有这种扩展性用语的示例中意图或者需要表示缩窄的情况。Unless expressly stated otherwise, the terms and phrases used herein, and variations thereof, are to be construed as open-ended rather than restrictive. In some instances, the appearance of expanding words and phrases such as "one or more," "at least," "but not limited to," or other similar expressions should not be construed as in instances where such expanding words may not be present Intent or need to indicate a narrowed situation.

Claims (10)

  1. 一种壳状牙科器械的制作方法，包括：A manufacturing method of a shell-shaped dental instrument, comprising:
    获取壳状牙科器械的壳状主体，其为一体的壳状，形成容纳牙齿的第一腔以及与所述第一腔连通的第二腔；以及obtaining a shell-shaped body of a shell-shaped dental appliance, which is integrally shell-shaped and forms a first cavity for accommodating teeth and a second cavity in communication with the first cavity; and
    往佩戴于牙齿的实体模型上的所述壳状主体的所述第二腔内注入填充材料，使其固化形成固定于所述第二腔内的实体元件，得到包括所述壳状主体与固定于所述第二腔内的实体元件的壳状牙科器械。Filling material is injected into the second cavity of the shell-like body worn on the solid model of the tooth, and solidified to form a solid element fixed in the second cavity, to obtain the shell-like body and the fixed body. A shell-like dental instrument with a solid element within the second cavity.
  2. 如权利要求1所述的壳状牙科器械的制作方法，其特征在于，所述实体元件是颌板或颌垫。The method of manufacturing a shell-shaped dental instrument according to claim 1, wherein the solid element is a jaw plate or a jaw pad.
  3. 如权利要求1所述的壳状牙科器械的制作方法，其特征在于，它还包括：The manufacturing method of the shell-shaped dental instrument according to claim 1, characterized in that, it further comprises:
    获取表示所述牙齿的第一三维数字模型；obtaining a first three-dimensional digital model representing the tooth;
    在所述第一三维数字模型的预定方位添加所述实体元件的三维数字模型，得到阳模的三维数字模型，其中，在所述阳模的三维数字模型中，与所述牙齿对应的主体部与所述实体元件之间以弱连接相互固定；Add the three-dimensional digital model of the solid element in the predetermined orientation of the first three-dimensional digital model to obtain a three-dimensional digital model of the male mold, wherein, in the three-dimensional digital model of the male mold, the main body part corresponding to the tooth is It is fixed with the solid element by weak connection;
    利用所述阳模的三维数字模型控制3D打印设备制作阳模；Use the three-dimensional digital model of the male mold to control the 3D printing equipment to make the male mold;
    以热压膜成型工艺在所述阳模上压膜形成所述壳状牙科器械的壳状主体；以及Forming the shell-shaped body of the shell-shaped dental instrument on the male mold by a hot stamping process; and
    将所述阳模上的实体元件移除，得到所述牙齿的实体模型。The solid elements on the male mold are removed, resulting in a solid model of the tooth.
  4. 如权利要求1所述的壳状牙科器械的制作方法，其特征在于，所述填充材料是光固化胶。The method for manufacturing a shell-shaped dental instrument according to claim 1, wherein the filling material is light-curing glue.
  5. 如权利要求1所述的壳状牙科器械的制作方法，其特征在于，所述光固化胶固化后的参数如下：弹性模量200～1000MPa，吸水率小于5％，以及与所述壳状牙科器械的剪切粘接强度5N/mm 2～10N/mm 2。 The manufacturing method of the shell-shaped dental instrument according to claim 1, wherein the parameters after curing of the photocurable glue are as follows: an elastic modulus of 200-1000 MPa, a water absorption rate of less than 5%, and a The shear bond strength of the device is 5N/mm 2 to 10N/mm 2 .
  6. 如权利要求5所述的壳状牙科器械的制作方法，其特征在于，所述光固化胶固化后的参数如下：弹性模量200～500MPa，吸水率小于3％，以及与所述壳状牙科器械的剪切粘接强度7N/mm 2～10N/mm 2。 The manufacturing method of the shell-shaped dental instrument according to claim 5, wherein the parameters after curing of the light-curing glue are as follows: an elastic modulus of 200-500 MPa, a water absorption rate of less than 3%, and a The shear bond strength of the device is 7N/mm 2 to 10N/mm 2 .
  7. 如权利要求1所述的壳状牙科器械的制作方法，其特征在于，它还包括：在所述壳状主体的第二腔的壁上形成注入孔，所述填充材料是通过所述注入孔注入所述第二腔。The method for manufacturing a shell-shaped dental instrument according to claim 1, further comprising: forming an injection hole on the wall of the second cavity of the shell-shaped body, and the filling material is passed through the injection hole into the second cavity.
  8. 一种壳状牙科器械，包括：A shell-shaped dental instrument comprising:
    一体的壳状主体，其形成容纳多颗牙齿的第一腔以及与所述第一腔连通的第二腔；以及a unitary shell-like body forming a first cavity for housing a plurality of teeth and a second cavity in communication with the first cavity; and
    实体元件，以填充于所述第二腔内的光固化胶固化后形成。The solid element is formed by curing the photocurable glue filled in the second cavity.
  9. 如权利要求8所述的壳状牙科器械，其特征在于，所述第二腔位于咬合面，并且其几何形态使得收容于其中的几何形态与之匹配的实体元件能够沿咬合方向顺利脱出。The shell-shaped dental appliance according to claim 8, wherein the second cavity is located on the occlusal surface, and its geometric shape enables the solid element accommodated therein with a matching geometric shape to be released smoothly along the occlusal direction.
  10. 如权利要求8所述的壳状牙科器械，其特征在于，所述光固化胶固化后的参数如下：弹性模量200～500MPa，吸水率小于3％，以及与所述壳状牙科器械的剪切粘接强度7N/mm 2～10N/mm 2。 The shell-shaped dental instrument according to claim 8, wherein the cured light-curable adhesive has the following parameters: an elastic modulus of 200-500 MPa, a water absorption rate of less than 3%, and a shearing force with the shell-shaped dental instrument. The cutting bond strength is 7N/mm 2 to 10N/mm 2 .
PCT/CN2022/086357 2021-04-12 2022-04-12 Method for manufacturing shell-shaped dental instrument WO2022218303A1 (en)

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US20110005527A1 (en) * 2007-02-21 2011-01-13 Ortho-Pro-Teknica Limited Orthodontic appliances
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