CN105407831A - Orthodontic aligners - Google Patents

Orthodontic aligners Download PDF

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Publication number
CN105407831A
CN105407831A CN 201480028667 CN201480028667A CN105407831A CN 105407831 A CN105407831 A CN 105407831A CN 201480028667 CN201480028667 CN 201480028667 CN 201480028667 A CN201480028667 A CN 201480028667A CN 105407831 A CN105407831 A CN 105407831A
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Prior art keywords
model
virtual
aligner
physical
slightly
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CN 201480028667
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Chinese (zh)
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王奉基
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威斯布拉斯有限公司
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/08Mouthpiece-type retainers or positioners, e.g. for both the lower and upper arch
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00Dental prostheses; Making same
    • A61C13/0003Making bridge-work, inlays, implants or the like
    • A61C13/0006Production methods
    • A61C13/0019Production methods using three dimensional printing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00Impression cups, i.e. impression trays; Impression methods
    • A61C9/004Means or methods for taking digitized impressions
    • A61C9/0046Data acquisition means or methods
    • A61C9/0053Optical means or methods, e.g. scanning the teeth by a laser or light beam

Abstract

An orthodontic aligner is formed by producing a virtual 3D model of the dentition of a patient, modifying the virtual model by enlarging the crown of the posterior teeth so that the dimensions of each tooth is slightly enlarged slightly and depressing the area immediately gingival to the most prominent part of the crown, 3D printing the modified virtual model to produce a physical model for the aligner and using the physical model for forming the aligner.

Description

正畸矫正器 Orthodontic braces

技术领域 FIELD

[0001] 本发明涉及正畸矫正器,并且更具体地涉及用于形成正畸矫正器的方法。 [0001] The present invention relates to orthodontic appliances and, more particularly, to a method for forming orthodontic appliances.

背景技术 Background technique

[0002] 正畸矫正器已被公知多年,其作为一种工具以用于矫直错位的牙齿以及与牙齿相关的可以通过改变病人牙齿的位置来治疗的齿列和口腔的其它病症。 [0002] The orthodontic appliance has been known for many years, as a tool for straightening teeth to misalignment and may be associated with the teeth of the patient's teeth by changing the position of the teeth and to treat other disorders of the oral cavity.

[0003] 正畸矫正器的最初形式是由金属丝、弹簧和调节螺钉形成,它们被插入患者的口中并附着在牙齿上对错位的牙齿或齿列的其他部分施加外力来纠正它们在口中的位置,它们是比较粗糙和笨拙的装置。 [0003] Initially orthodontic appliance is in the form of a wire, a spring and adjusting screw is formed, which is inserted into the patient's mouth and attached to the external force is applied or other portions of misaligned teeth in the dentition to correct their teeth in the mouth position, which is relatively coarse and awkward devices. 它们最常用于如覆咬合或反颂及其他干扰进食过程的齿畸形的情况。 They are most often the case for teeth deformities such as overbite or interfere with other anti-Chung and eating process.

[0004] 早期的装置通常是不舒服,不美观的,并造成痛苦和尴尬,尤其是对年轻患者。 [0004] The early devices are generally uncomfortable, unsightly, and caused pain and embarrassment, especially for younger patients.

[0005] 多年来已作出许多改进,且当前正畸矫正器通常由丙烯酸或其他塑料材料制成,使得它们不太显眼并且佩戴更舒适。 [0005] Over the years many improvements have been made, and the current orthodontic appliances typically made of acrylic or other plastic material, such that they are less visible and more comfortable to wear.

[0006] 然而,问题依然出现。 [0006] However, the problem is still there. 经常需要保持工具来确保保持器留在患者口中的正确位置,并且不能由于如咀嚼或刷牙这种正常的和必要的行动而移位。 Often we need to keep tools to ensure the correct position of the holder to stay in the mouth of the patient, and not due as chewing or brushing this normal and necessary action shifted.

[0007] 这种保持方法包括在外部附连到矫正器的线扣,例如通过使用粘合剂,或在成形过程中在内部附连,或附连装置粘接于牙齿。 [0007] This method comprises holding externally attached to the cable tie brace, for example by using an adhesive, or during the forming process within the attachment or attachment means is bonded to the tooth. 这些方法并不完全可靠,因为它们都需要额外步骤,不论是在线扣的情况下的制造阶段或是在用于牙齿上的附连工具的应用阶段。 These methods are not entirely reliable, because they require additional steps, both the manufacturing stage or stage application tool attached on the teeth for the case of online buckle. 此外,线扣可能会松动或折断,并有可能被患者吞下。 In addition, the deduction line may come loose or break, and the patient is likely to be swallowed. 已使用的另一备选保持方法形成矫正器以在齿龈区域延伸,使得通过矫正器插入齿龈表面而获得保持,这可能引起患者的疼痛和对软组织造成创伤。 Another alternative has been to use the method of forming the holding brace to extend in the gingival area, so that the surface is obtained by holding the gingival orthotic insert, which may cause pain and trauma to the soft tissue.

[0008] 在治疗过程推进时以及牙齿的位置改变时,所有的正畸矫正器都需要被移除以便做调整,而这必须手动完成。 When [0008] the advanced position changed and teeth during the treatment, all of orthodontic appliances need to be removed in order to make adjustments, and this must be done manually. 对于患者来说,现有的保持方法会使去除和插入很困难。 For patients, the conventional holding method will make it difficult to insert and remove.

发明内容 SUMMARY

[0009] 本发明提供了一种新颖的正畸矫正器的形式,不会遇到与现有技术相关联的问题的困扰,并提供了一种制造新的矫正器的方法。 [0009] The present invention provides a novel form of orthodontic appliances without encountering problems of the prior art and problems associated with, and provides a method of manufacturing a new aligner.

[0010] 根据本发明的正畸矫正器的形成是通过制作病人的齿列的三维虚拟模型、通过增大至少一些后牙的冠或冠部(即,白齿和前白齿)并缩减紧邻齿龈至齿冠最突出部分的区域来修正虚拟模型、三维打印修正后的虚拟模型以制作用于矫正器的实体模型并使用该实体模型用于形成矫正器。 [0010] The formation of the orthodontic appliance of the present invention is a three-dimensional virtual model of the dentition made by the patient, at least some of the posterior teeth by increasing the crown or a crown portion (i.e., front teeth and the white white teeth) and immediately reduced the most prominent part of the region of the crown to the gingival corrected virtual model, virtual three-dimensional model to make a solid model print correction device for correcting and using the solid model for forming the aligner.

[0011 ] 病人的牙列的虚拟模型可以,例如,通过口腔内扫描,扫描牙印模或扫描石膏模型制得。 [0011] The virtual model of the dentition of the patient may be, for example, by scanning intraoral scan or scan a dental impression prepared plaster model.

[0012] 矫正器本身优选地由真空成型热塑性材料的片材,使用修正的实体模型制成,优选地为聚对苯二甲酸乙酯二醇改性的或另一种共聚酯的片材,或其它无色透明材料的片材。 [0012] Preferably, the aligner itself, using a modified solid model is made of vacuum formed sheet of thermoplastic material, preferably a sheet of polyethylene terephthalate of ethyl glycol-modified copolyester or another material , colorless and transparent, or other sheet materials.

[0013] 制成的矫正器将沿着后牙修正后的轮廓,并且当引入到病人的齿弓时,增大的齿冠部将允许后牙移动以完全匹配进入矫正器,牙齿和矫正器之间存在空间。 After [0013] formed along the contour of the brace after the teeth corrected, and when introduced into the patient's dental arch, the increase in the crown portion of the tooth movement to allow exact match into the aligner, teeth and braces there is a space between. 这个空间可以让血液在牙周组织内通畅地流动。 This space can allow blood to flow smoothly in the periodontal tissues. 血流对于牙齿的健康和正畸治疗令人满意的进展是至关重要的。 For healthy blood flow and progress satisfactory orthodontic treatment teeth is essential. 凹陷区使得在矫正器的内表面上产生内弯的唇部,其允许矫正器卡扣配合到后齿,而不与患者的齿龈接触或以其他方式影响患者的齿龈。 Recessed area such that the inturned lip on the inner surface of the aligner, which allows the brace to the snap-fit ​​teeth, without contact with the patient's gums or gingiva affect the patient in other ways.

[0014] 后牙虚拟图像的增大量将取决于病人牙齿的大小,但可以小到0.2毫米。 [0014] The virtual tooth image by the large number will depend on the size of the patient's teeth, but can be as small as 0.2 mm.

[0015] 本发明的虚拟图像的修正可以在口腔的每一侧的一个或多个后牙进行。 [0015] The virtual image correction according to the present invention may be carried out after the one or more teeth in each side of the mouth. 所涉及的牙齿不必一定是每侧上相同的牙齿或相同编号的牙齿。 Tooth involved is not necessarily the same on each side of the tooth or the same number of teeth.

附图说明 BRIEF DESCRIPTION

[0016] 本发明现在将以举例的方式参考附图更详细地描述,其中: [0016] The present invention will now be described by way of example in more detail with reference to the accompanying drawings, wherein:

[0017] 图1是后牙的齿龈以上部分的示意性透视图; [0017] FIG. 1 is a schematic perspective view of a portion of the teeth above the gum;

[0018] 图2是表示修正前的虚拟模型的形状的示意图; [0018] FIG. 2 is a schematic view showing the shape of the virtual model before correction;

[0019] 图3是表示修正后的虚拟模型的形状的示意图;及 [0019] FIG. 3 is a schematic view showing the shape of the corrected virtual model; and

[0020]图4是使用根据本发明的模具制作的模具制得的修正的矫正器的穿过后齿部的一段。 [0020] FIG. 4 is a period of the tooth portion in accordance with the correction made through the mold die of the present invention produced orthotic.

具体实施方式 detailed description

[0021] 如图1所示,人的后牙1具有上部球形冠或齿冠2,其占据暴露在齿龈或齿龈4以上牙齿部分的大约一半,以及朝向牙根(未示出)逐渐变细的下部3。 [0021] 1, 1 human posterior crown having a spherical or an upper crown 2, which occupies the gingival or gum exposed portion 4 over about half of the tooth and towards the root (not shown) that tapers the lower part 3.

[0022] 如图2所示,在本发明的方法的第一步骤中,制得患者牙列的三维虚拟图像。 [0022] As shown, in the first step of the method of the present invention to prepare three-dimensional virtual image of the patient's dentition 2. 只有一个牙齿1与齿銀4的一部分一起被不出。 1 is not only a tooth portion of the teeth with silver 4.

[0023] 如图3所示,在该方法的第二步骤中,齿冠2的虚拟图像的修正是通过稍微增大由线AA表示的牙齿的最大尺寸上方的图像的边界5,并略微缩减线AA下面的部分3的边界以形成凹陷6。 [0023] As shown in FIG 3, in the second step of the method, the crown 2 is corrected virtual image is the image of the maximum size of the upper teeth slightly increased represented by a boundary line AA 5, and slightly reduced below the boundary line AA portion 3 to form a recess 6.

[0024] 如图4所示,本发明的矫正器具有第一部分7,它比牙齿9的齿冠2大,第二部分包括内弯的唇部8,其夹扣配合在齿冠2下面的牙齿上,以及第三部分9,其配合在齿龈表面4的顶部区域上。 [0024] As shown in FIG. 4, the correction of the present invention has a first portion 7, which is larger than the crown of the tooth 9 2, the second portion including inturned lip 8, which is fitted in the clip following the crown 2 on the teeth, as well as 9, with its top surface region of the third portion 4 of the gum.

Claims (7)

  1. 1.一种用于形成正畸矫正器的方法,包括制作病人的齿列的三维虚拟模型、通过增大口腔每一侧上至少一个后牙的齿冠使得每个牙齿的尺寸稍微被增大并且缩减紧邻齿龈至齿冠最突出部分的区域来修正虚拟模型、三维打印修正后的虚拟模型以制作用于矫正器的实体模型并使用所述实体模型用于形成矫正器。 1. A method for forming orthodontic appliance, comprising teeth made of a three-dimensional virtual model of the patient, by increasing at least one on each side of the mouth after the dental crown so that the size of each tooth is slightly increased and immediately reduced to the most prominent portion of the gingival area of ​​the crown to correct the virtual model, the virtual three-dimensional model modified to produce a printed solid model using the aligner and for forming a solid model aligner.
  2. 2.根据权利要求1所述的方法,其中所述虚拟模型是由口腔内扫描、扫描牙印模或扫描石膏模型制得的。 The method according to claim 1, wherein the virtual model is scanned by the intraoral scan or dental impression of the prepared plaster model scan.
  3. 3.根据权利要求1或2所述的方法,其中所述矫正器是通过真空成型热塑性材料的片材制得的。 3. The method of claim 1 or 2, wherein the correction is made by vacuum forming a sheet of thermoplastic material is obtained.
  4. 4.根据权利要求1至3中任一权利要求所述的方法,其中所述热塑性材料是无色透明材料。 4. The method according to any one of the claims claimed in claim 3, wherein the thermoplastic material is colorless and transparent material.
  5. 5.根据权利要求1至4中任一权利要求所述的方法,其中所述热塑性材料是二醇改性的聚对苯二甲酸乙二醇酯。 The method of any one of 1 to 4 claim in claim, wherein said thermoplastic material is a glycol-modified polyethylene terephthalate.
  6. 6.一种由权利要求1至5中任一权利要求所述的方法生产的正畸矫正器。 6. A method of claims 1 to 5 A method according to claim produced orthodontic appliances.
  7. 7.—种正畸矫正器,其具有第一部分(7),所述第一部分(7)比牙齿(1)的齿冠(2)大,第二部分包括内弯的唇部8和第三部分(9),所述内弯的唇部8夹扣配合在齿冠(2)下方的牙齿上,所述第三部分(9)套在齿龈表面(4)的顶部区域上。 7.- kinds of orthodontic appliances, having a first portion (7), said first portion (7) than the tooth (1) of the crown (2) is large, the second portion including inturned lip 8 and the third part (9), said curved inner lip portion 8 in the clip sleeve fitted on the gingival surface (4) of the top region (2) on the tooth below the third portion (9) on the crown.
CN 201480028667 2014-07-10 2014-07-10 Orthodontic aligners CN105407831A (en)

Priority Applications (1)

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PCT/SG2014/000329 WO2016007085A1 (en) 2014-07-10 2014-07-10 Orthodontic aligners

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6309215B1 (en) * 1997-06-20 2001-10-30 Align Technology Inc. Attachment devices and method for a dental applicance
US8496474B2 (en) * 1997-06-20 2013-07-30 Align Technology, Inc. Computer automated development of an orthodontic treatment plan and appliance
US7717708B2 (en) * 2001-04-13 2010-05-18 Orametrix, Inc. Method and system for integrated orthodontic treatment planning using unified workstation
WO2006050452A3 (en) * 2004-11-02 2008-05-29 Align Technology Inc Methods and apparatuses for manufacturing dental aligners
US7831322B2 (en) * 2005-03-07 2010-11-09 Align Technology, Inc. Producing wrinkled dental aligner for dental treatment
US7942672B2 (en) * 2008-02-15 2011-05-17 Align Technology, Inc. Gingiva modeling

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