WO2018035985A1 - 一种口腔正畸力测量的方法及装置 - Google Patents
一种口腔正畸力测量的方法及装置 Download PDFInfo
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- WO2018035985A1 WO2018035985A1 PCT/CN2016/105474 CN2016105474W WO2018035985A1 WO 2018035985 A1 WO2018035985 A1 WO 2018035985A1 CN 2016105474 W CN2016105474 W CN 2016105474W WO 2018035985 A1 WO2018035985 A1 WO 2018035985A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/04—Measuring instruments specially adapted for dentistry
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- the present invention relates to the field of orthodontic techniques, and in particular, to a method and apparatus for orthodontic force measurement.
- the measurement of orthodontic force is not easy to achieve due to many limitations of the in vivo measurement technique, and more is measured by means of in vitro measurement.
- Existing in vitro measurement techniques are measured using the patient's overall oral model without distinguishing the biomechanical effects of different tissues.
- the teeth, periodontal ligament, and alveolar bone have different effects on the orthodontic force, so the existing measurement method will result in the difference between the measured orthodontic force data and the actual orthodontic force of the tooth.
- the orthodontic force currently applied to the teeth is mainly applied by the doctor's experience. As a result, the orthodontic force applied is not accurate enough, and the correct application of the orthodontic force is also highly demanding for the practitioner.
- An object of the present invention is to provide a method and apparatus for measuring orthodontic force, which aims to solve the problem that the orthodontic force data measured in the prior art differs from the actual orthodontic force to which the teeth are subjected.
- the technical solution of the present invention is: Providing a method for orthodontic force measurement, comprising the following steps: performing CT scan on a patient's oral cavity to obtain an oral CT image, and according to the obtained Oral CT image preparation includes a three-dimensional model of the oral cavity, periodontal membrane model and alveolar bone model; an orthodontic appliance is selected, and the appliance is mounted on the dental model of the oral three-dimensional model and the three-dimensional model of the oral cavity All dental models are corrected to the target form; the alveolar bone model of the dental model to be tested in the three-dimensional model of the oral cavity is cut out from the alveolar bone model of the adjacent two-sided dental model; the mechanical sensor is connected to the dental model to be tested On the alveolar bone model; the alveolar bone model of the tooth model to be tested is returned to the original position before cutting, and the ⁇ mechanical sensor measures the orthodontic force data of the tooth model to be tested.
- the tooth model and the alveolar bone model were prepared by 3D printing technology, and the colloidal material was filled in the gap between the alveolar bone model and each tooth model to simulate the periodontal membrane of the patient's mouth.
- the colloidal material is GS silica gel, RTV silica gel or a mixture thereof.
- the three-dimensional model of the cavity in which the appliance is installed is fixed on the support table.
- the three-dimensional model of the oral cavity on which the appliance is installed is fixed on the support table.
- an orthodontic force measuring device including a three-dimensional model of the oral cavity
- an appliance a mechanical sensor
- the three-dimensional model of the oral cavity includes a tooth model, a periodontal ligament model, and an alveolar bone model
- the appliance is mounted on the tooth model and all the dental models are corrected to a target form
- the mechanical sensor is connected to the test to be tested
- the alveolar bone model of the tooth model to be tested is separated from the alveolar bone model of the tooth model on both sides of the tooth model to be tested.
- the orthodontic force measuring device further comprises a support table, and the three-dimensional model of the oral cavity is fixed on the support table during the measurement of the orthodontic force.
- the mechanical sensor comprises a mechanical sensor body and a measuring rod extending out of the mechanical sensor body, and the measuring rod is connected to the alveolar bone model of the tooth model to be tested.
- the appliance is one of a common steel braces, a lingual braces, a self-locking braces or a bracketless braces.
- the CT scan of the patient's mouth is performed to obtain the correct data of the patient's mouth, and then the three-dimensional model of the oral cavity conforming to the patient's mouth is prepared according to the data, so that the three-dimensional model of the oral cavity is formed with the tooth model and the periodontal ligament.
- the model and the complete biomechanical biomimetic model of the alveolar bone model, and the formal orthodontic force measurement is performed by the formal appliance, so that the measurement result is closer to the actual use effect, and the tooth model to be tested is further separated and the orthodontic force is separated.
- the test discharges the interference factors of the alveolar bone model on both sides of the tooth model to be tested to the measurement data, making the measurement result more accurate.
- FIG. 1 is a schematic view showing a three-dimensional oral cavity model and a mechanical sensor connection structure of an embodiment of the orthodontic force measuring device of the present invention.
- the method for measuring orthodontic force includes the following steps: Performing a CT scan to obtain an oral CT image, and preparing a dental model based on the obtained oral CT image
- Oral three-dimensional model of periodontal ligament model and alveolar bone model selecting appliance for orthodontic treatment, installing the appliance on the dental model of the three-dimensional model of the oral cavity and correcting all the dental models in the three-dimensional model of the oral cavity into the target form
- the alveolar bone model of the tooth model to be tested in the three-dimensional model of the oral cavity is cut out from the alveolar bone model of the adjacent two-sided tooth model; the mechanical sensor is connected to the alveolar bone model of the tooth model to be tested;
- the alveolar bone model of the tooth model to be tested is restored to the original position before cutting, and the mechanical sensor measures the orthodontic force data of the tooth model to be tested.
- a CT scan of a patient's mouth is performed to obtain correct data of the patient's mouth, and then a three-dimensional model of the oral cavity conforming to the patient's mouth is prepared according to the data, so that the three-dimensional model of the oral cavity is formed.
- a complete biomechanical bionic model with a tooth model, a periodontal ligament model, and an alveolar bone model, and a formal appliance for orthodontic force measurement, so that the measurement results are closer to the actual use effect, and the tooth model to be tested is further The independent orthodontic force test is separated, and the interference factors of the alveolar bone model on both sides of the tooth model to be tested are measured to make the measurement result more accurate.
- Oral CT images for image processing and reverse engineering analysis which is a key step in obtaining patient oral data information.
- the staff is required to be unable to have data omissions and data errors beyond the predetermined error range. , so that the correct data of the patient's mouth is correctly obtained.
- the dental model and the alveolar bone model were prepared by 3D printing technology, and the colloidal material was used to fill the gap between the alveolar bone model and each tooth model.
- the periodontal ligament is a dense connective tissue, and the periodontal ligament fibers have a certain elasticity. Can play the role of regulating and buffering the orthodontic force).
- the dental model and the alveolar bone model are produced according to the analysis result of the CT image of the patient's mouth and by means of 3D printing, and the patient's teeth are copied by the dental mold in the prior art.
- the preparation method (the existing in vitro orthodontic force measurement method regards the oral tissues as a whole, and in the process of preparing the oral model, the tooth model and the alveolar bone model are integrally formed and in the tooth model and the alveolar bone model) There is no periodontal membrane model between them, the force is transmitted between the tissues through rigid contact, and then the sensor is used to directly measure the orthodontic force on the tooth model or the appliance, without considering the periodontal membrane during the implementation of the orthodontic force.
- the preparation form in this method can more accurately simulate the relationship between teeth and alveolar bone in the patient's mouth, and use the colloidal material in the alveolar bone model and the tooth model.
- a periodontal membrane model similar to the periodontal ligament in the patient's mouth is formed in the gap to perform a bionic simulation, and the patient is directly reproduced. Physiological oral situation, so that more accurate measurement structure.
- the colloidal material formed into the periodontal membrane model may be a colloidal material such as GS silica gel, RT V silica gel or the like or a mixture thereof.
- the oral cavity must also be used in the process of measuring the orthodontic force in vitro.
- the 3D model is fixed. Therefore, before the cutting of the alveolar bone model of the tooth model to be tested, the three-dimensional model of the oral cavity in which the appliance is installed is fixed on the support table; or, the alveolar bone model of the tooth model to be tested is returned to the original before cutting. Before the position, the three-dimensional model of the oral cavity in which the appliance is installed is fixed on the support table. This ⁇ can simulate the orthodontic force measurement of the patient's mouth to achieve a more realistic measurement of the orthodontic force.
- the orthodontic force of the patient's oral cavity is measured by performing the above-described method for measuring the orthodontic force, because the orthodontic force measuring device to be applied includes the oral three-dimensional model 10, the appliance 30, and the mechanical sensor. 20, wherein the oral three-dimensional model 10 comprises a tooth model 11, a periodontal ligament model 12 and an alveolar bone model 13, and the appliance 30 is mounted on the crown 111 of the tooth model 11 and corrects the crown 111 of all the tooth models 11 into
- the mechanical sensor 20 is connected to the alveolar bone mold type 13 of the tooth model 11 to be tested, and in measuring the orthodontic force ⁇ , the alveolar bone model 13 of the tooth model to be tested and the tooth model to be tested The alveolar bone model 13 of the two-sided tooth model is separated.
- the gap between the root 112 of the tooth model 11 and the alveolar bone 13 The medium is filled with a colloidal material and molded into a periodontal membrane model 12 to simulate the periodontal membrane of the patient's mouth.
- the oral three-dimensional model 10 including the tooth model 11, the periodontal ligament model 12, and the alveolar bone model 13 can more accurately and realistically simulate the patient's mouth, thereby measuring more accurate orthodontic force measurement data.
- the device further includes a support table, and the three-dimensional model of the oral cavity is measured on the support table to measure the orthodontic force, thereby more realistically simulating the teeth in the patient's mouth.
- the alveolar bone is a solid skeletal tissue in the mouth for the measurement of orthodontic force.
- the mechanical sensor 20 includes a mechanical sensor body 21 and a measuring rod 22 extending out of the mechanical sensor body 21, and the measuring rod 22 is coupled to the alveolar bone model 13 of the tooth model 11 to be tested.
- the worker applies a force to the measuring rod 22 to overcome the application of the appliance 30 to the crown.
- 111 and the orthodontic force transmitted to the alveolar bone 13 through the root 112 and the periodontal ligament model 12, and the orthodontic force data applied by the appliance 30 is measured according to the mechanical principle that the force is equal to the reaction.
- the appliance 30 applied to the orthodontic force measuring device is generally used in practical treatment.
- the actual application is combined with the measurement, and the actual operation process is based on the appliance 30 selected by the patient.
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Abstract
一种口腔正畸力测量方法和装置。该口腔正畸力测量的方法包括以下步骤:对患者口腔进行CT扫描以获得口腔CT图像,并根据所获得的口腔CT图像制备包含牙齿模型(11)、牙周膜模型(12)和牙槽骨模型(13)的口腔三维模型(10);选择正畸治疗用的矫治器(30),将矫治器(30)安装在牙齿模型(11)上并将口腔三维模型(10)中的所有牙齿模型(11)矫正成目标形式;将口腔三维模型(10)中的待测牙齿模型(11)的牙槽骨模型(13)从相邻两侧牙齿模型(11)的牙槽骨模型(13)中切割独立出来;将力学传感器(20)连接至待测牙齿模型(11)的牙槽骨模型(13)上;将该牙槽骨模型(13)回复至切割前的原位置。该口腔正畸力测量的方法解决了现有技术中所测口腔正畸力数据与牙齿所受的实际矫治力存在差异的问题。
Description
技术领域
[0001] 本发明涉及牙齿矫正技术领域, 具体地, 涉及一种口腔正畸力测量的方法及装 置。
背景技术
[0002] 错颌畸形具有较高的发病率, 其除了影响患者美观给患者带来心理伤害外, 还 会影响颌面发育和口腔功能, 给患者造成身体伤害。 口腔正畸学是专门研究错 颌畸形的病因、 诊断、 治疗和预防的学科。 口腔正畸是通过矫正器给牙齿施加 适当的正畸力, 使其产生生理性移动, 从而矫治错颌畸形。 施加在牙齿上的正 畸力对口腔正畸的效果有直接影响。 正畸力的方向将影响牙齿移动模式, 而正 畸力大小将影响牙齿移动速度。 过大的正畸力可能引起牙齿松动、 牙根吸收等 副作用。
[0003] 在现有技术中, 对于口腔正畸力的测量, 由于体内测量技术有许多局限性而不 易实现, 更多的是采用体外测量的方式进行测量。 现有的体外测量技术是使用 患者的口腔整体模型进行测量, 未区分不同组织的生物力学作用。 而牙齿、 牙 周膜、 牙槽骨对正畸力有不同的影响, 因此现有的测量方法将导致所测口腔正 畸力数据与牙齿所受的实际矫治力存在差异。 并且, 目前施加在牙齿上的正畸 力主要依靠医师的经验判断进行施加, 结果施加的正畸力不够准确, 若要正确 施加口腔正畸力也对医师从业要求较高。
技术问题
[0004] 本发明的目的在于提供一种口腔正畸力测量方法和装置, 旨在解决现有技术中 所测口腔正畸力数据与牙齿所受的实际矫治力存在差异的问题。
问题的解决方案
技术解决方案
[0005] 为解决上述技术问题, 本发明的技术方案是: 提供一种口腔正畸力测量的方法 , 包括以下步骤: 对患者口腔进行 CT扫描以获得口腔 CT图像, 并根据所获得的
口腔 CT图像制备包含牙齿模型、 牙周膜模型和牙槽骨模型的口腔三维模型; 选 择正畸治疗用的矫治器, 将矫治器安装在口腔三维模型的牙齿模型上并将口腔 三维模型中的所有牙齿模型矫正成目标形式; 将口腔三维模型中的待测牙齿模 型的牙槽骨模型从相邻两侧牙齿模型的牙槽骨模型中切割独立出来; 将力学传 感器连接至待测牙齿模型的牙槽骨模型上; 将该待测牙齿模型的牙槽骨模型回 复至切割前的原位置, 此吋力学传感器测得待测牙齿模型的口腔正畸力数据。
[0006] 可选地, 在根据所获得的口腔 CT图像制备包含牙齿模型、 牙周膜模型和牙槽 骨模型的口腔三维模型的过程中, 对口腔 CT图像进行图像处理以及进行逆向工 程分析, 根据图像处理与逆向工程分析结果采用 3D打印技术制备牙齿模型和牙 槽骨模型, 并采用胶体材料填充在牙槽骨模型与各个牙齿模型之间的间隙中成 型以模拟患者口腔的牙周膜。
[0007] 可选地, 胶体材料为 GS硅胶、 RTV硅胶或其混合体。
[0008] 可选地, 在对待测牙齿模型的牙槽骨模型进行切割前, 将安装完成矫治器的口 腔三维模型固定在支撑台上。
[0009] 可选地, 在将待测牙齿模型的牙槽骨模型回复至切割前的原位置前, 将安装完 成矫治器的口腔三维模型固定在支撑台上。
[0010] 根据本发明的另一方面, 提供了一种口腔正畸力测量装置, 包括口腔三维模型
、 矫治器、 力学传感器, 其中, 口腔三维模型包括牙齿模型、 牙周膜模型和牙 槽骨模型, 矫治器安装在牙齿模型上并将所有牙齿模型矫正成目标形式, 力学 传感器连接至待测的牙齿模型的牙槽骨模型上, 并且在测量口腔正畸力吋, 待 测的牙齿模型的牙槽骨模型与待测的牙齿模型的两侧牙齿模型的牙槽骨模型分 离开。
[0011] 可选地, 口腔正畸力测量装置还包括支撑台, 在测量口腔正畸力吋口腔三维模 型固定在支撑台上。
[0012] 可选地, 力学传感器包括力学传感器本体和延伸出力学传感器本体的测量杆, 测量杆连接在待测的牙齿模型的牙槽骨模型上。
[0013] 可选地, 矫治器为普通钢牙套、 舌侧牙套、 自锁牙套或无托槽牙套中的一种。
发明的有益效果
有益效果
[0014] 本发明中, 通过对患者口腔进行 CT扫描, 获得患者口腔的正确数据, 然后根 据这些数据来制备与患者口腔相一致的口腔三维模型, 使得口腔三维模型形成 具备牙齿模型、 牙周膜模型以及牙槽骨模型的完全生物力学仿生模型, 并且利 用正式的矫治器进行口腔正畸力测量, 使得测量结果更加接近实际使用效果, 进一步地将待测牙齿模型进行分离独立的口腔正畸力测试, 排出了待测牙齿模 型两侧的牙槽骨模型对测量数据的干扰因素, 使得测量结果更加准确。
对附图的简要说明
附图说明
[0015] 图 1是本发明的口腔正畸力测量装置的实施例的口腔三维模型和力学传感器连 接结构示意图。
[0016] 在附图中:
[0017] 10、 口腔三维模型; 11、 牙齿模型;
[0018] 111、 牙冠; 112、 牙根;
[0019] 12、 牙周膜模型; 13、 牙槽骨模型;
[0020] 20、 力学传感器; 21、 力学传感器本体;
[0021] 22、 测量杆; 30、 矫治器。
本发明的实施方式
[0022] 为了使本发明的目的、 技术方案及优点更加清楚明白, 以下结合附图及实施例 , 对本发明进行进一步详细说明。 应当理解, 此处所描述的具体实施例仅仅用 以解释本发明, 并不用于限定本发明。
[0023] 需要说明的是, 当元件被称为 "固定于"或"设置于"另一个元件, 它可以直接在 另一个元件上或者间接在该另一个元件上。 当一个元件被称为"连接于 "另一个元 件, 它可以是直接连接到另一个元件或者间接连接至该另一个元件上。
[0024] 还需要说明的是, 本实施例中的左、 右、 上、 下等方位用语, 仅是互为相对概 念或是以产品的正常使用状态为参考的, 而不应该认为是具有限制性的。
[0025] 在本发明的实施方法中, 该口腔正畸力测量的方法包括以下步骤: 对患者口腔
进行 CT扫描以获得口腔 CT图像, 并根据所获得的口腔 CT图像制备包含牙齿模型
、 牙周膜模型和牙槽骨模型的口腔三维模型; 选择正畸治疗用的矫治器, 将矫 治器安装在口腔三维模型的牙齿模型上并将口腔三维模型中的所有牙齿模型矫 正成目标形式; 将口腔三维模型中的待测牙齿模型的牙槽骨模型从相邻两侧牙 齿模型的牙槽骨模型中切割独立出来; 将力学传感器连接至待测牙齿模型的牙 槽骨模型上; 将该待测牙齿模型的牙槽骨模型回复至切割前的原位置, 此吋力 学传感器测得待测牙齿模型的口腔正畸力数据。
[0026] 在上述口腔正畸力测量的方法中, 通过对患者口腔进行 CT扫描, 获得患者口 腔的正确数据, 然后根据这些数据来制备与患者口腔相一致的口腔三维模型, 使得口腔三维模型形成具备牙齿模型、 牙周膜模型以及牙槽骨模型的完全生物 力学仿生模型, 并且利用正式的矫治器进行口腔正畸力测量, 使得测量结果更 加接近实际使用效果, 进一步地将待测牙齿模型进行分离独立的口腔正畸力测 试, 排出了待测牙齿模型两侧的牙槽骨模型对测量数据的干扰因素, 使得测量 结果更加准确。
[0027] 当然, 在上述口腔正畸力测量的方法的步骤中, 这些步骤中的某些步骤执行可 以不按照上述过程的先后顺序进行。 例如, "将口腔三维模型中的待测牙齿模型 的牙槽骨模型从相邻两侧牙齿模型的牙槽骨模型中切割独立出来"与"将力学传感 器连接至待测牙齿模型的牙槽骨模型上"这两个执行步骤则可以调换执行。
[0028] 在实际测量操作过程, 该口腔正畸力测量的方法中, 在根据所获得的口腔 CT 图像制备包含牙齿模型、 牙周膜模型和牙槽骨模型的口腔三维模型的过程中, 对口腔 CT图像进行图像处理以及进行逆向工程分析 , 这是获得患者口腔数据信 息的关键步骤, 在进行图形处理和进行逆向工程分析过程中, 要求工作人员不 能出现数据遗漏以及出现数据误差超出预定误差范围, 从而正确得出患者口腔 的正确数据。 根据图像处理与逆向工程分析结果, 即根据分析所得的患者口腔 数据, 采用 3D打印技术制备牙齿模型和牙槽骨模型, 并采用胶体材料填充在牙 槽骨模型与各个牙齿模型之间的间隙中成型以模拟患者口腔的牙周膜 (在口腔 组织中, 牙周膜是牙齿与牙槽骨间力的传递介质, 牙周膜是一种致密的结缔组 织, 牙周膜纤维具有一定的弹性, 能起到调节、 缓冲正畸力的作用) 。 本发明
的口腔正畸力测量的方法中根据对患者口腔的 CT图像的分析结果并利用 3D打印 的方式进行制作牙齿模型和牙槽骨模型, 相较于现有技术中通过牙模对患者牙 齿进行复制的制备方法 (已有的体外正畸力测量方法将口腔各组织视为一个整 体, 在制备口腔模型过程中则体现为牙齿模型与牙槽骨模型一体成型并且在牙 齿模型与牙槽骨模型之间并不存在牙周膜模型, 各组织间通过刚性接触进行力 的传递, 然后直接利用传感器测量牙齿模型或矫治器上的正畸力, 而未考虑在 正畸力实施过程中牙周膜的组织特性对正畸力的影响) , 本方法中制备形式能 够更加准确地对患者口腔中牙齿与牙槽骨之间的关系进行仿生学模拟, 并且利 用胶体材料在牙槽骨模型与牙齿模型之间的间隙中形成与患者口腔中牙周膜相 近的牙周膜模型进行仿生模拟, 更进一步地直接再现患者口腔的生理情形, 使 得测量结构更加准确。
[0029] 在制备口腔三维模型的过程中, 成型为牙周膜模型的胶体材料为 GS硅胶、 RT V硅胶等胶体材料或其混合体的胶体材料均可。
[0030] 在本发明的口腔正畸力测量的方法中 , 由于患者口腔中的牙齿与牙槽骨均为口 腔中坚固的骨骼组织, 因而在进行体外测量正畸力的过程中也必须将口腔三维 模型进行固定。 因此, 在对待测牙齿模型的牙槽骨模型进行切割前, 将安装完 成矫治器的口腔三维模型固定在支撑台上; 或者, 在将待测牙齿模型的牙槽骨 模型回复至切割前的原位置前, 将安装完成矫治器的口腔三维模型固定在支撑 台上。 此吋即可模拟患者口腔进行正畸力测量, 实现更贴合实际使用的正畸力 的测量效果。
[0031] 本发明中通过执行上述口腔正畸力的测量方法对患者口腔的正畸力进行测量, 因为所需应用到的口腔正畸力测量装置包括口腔三维模型 10、 矫治器 30、 力学 传感器 20, 其中, 口腔三维模型 10包括牙齿模型 11、 牙周膜模型 12和牙槽骨模 型 13, 矫治器 30安装在牙齿模型 11的牙冠 111上并将所有牙齿模型 11的牙冠 111 矫正成目标形式, 力学传感器 20连接至待测的牙齿模型 11的牙槽骨模 13型上, 并且在测量口腔正畸力吋, 待测的牙齿模型的牙槽骨模型 13与待测的牙齿模型 的两侧牙齿模型的牙槽骨模型 13分离开。
[0032] 在该口腔正畸力测量的装置中, 牙齿模型 11的牙根 112与牙槽骨 13之间的间隙
中填充进行胶体材料并成型固定为牙周膜模型 12, 从而模拟患者口腔的牙周膜 。 这样, 包含牙齿模型 11、 牙周膜模型 12和牙槽骨模型 13的口腔三维模型 10能 够更加准确、 真实地模拟患者口腔, 从而测量得到更加准确的口腔正畸力测量 数据。
[0033] 在该口腔正畸力测量的装置中, 其还包括支撑台, 在测量口腔正畸力吋口腔三 维模型固定在支撑台上, 从而将口腔三维模型 10更加真实地模拟患者口腔中牙 齿与牙槽骨均为口腔中坚固的骨骼组织来进行口腔正畸力的测量。
[0034] 力学传感器 20包括力学传感器本体 21和延伸出力学传感器本体 21的测量杆 22, 测量杆 22连接在待测的牙齿模型 11的牙槽骨模型 13上。 在执行上述的口腔正畸 力测量的方法过程中的"将该牙槽骨模型回复至切割前的原位置"步骤吋候, 工作 人员对测量杆 22施力以克服矫治器 30施加在牙冠 111并通过牙根 112、 牙周膜模 型 12传递至牙槽骨 13的正畸力, 根据作用力与反作用相等的力学原理, 从而测 量得到矫治器 30所施加的正畸力数据。
[0035] 为了使所测量得到的正畸力数据能够切实地应用在临床治疗患者的实际应用中 , 因此, 该口腔正畸力测量的装置所应用的矫治器 30为实际治疗中所应用的普 通钢牙套、 舌侧牙套、 自锁牙套或无托槽牙套中的一种。 实际应用与测量相结 合, 在实际操作过程根据患者所选择的矫治器 30为准。
[0036] 以上仅为本发明的较佳实施例而已, 并不用以限制本发明, 凡在本发明的精神 和原则之内所作的任何修改、 等同替换和改进等, 均应包含在本发明的保护范 围之内。
Claims
[权利要求 1] 一种口腔正畸力测量的方法, 其特征在于, 包括以下步骤:
对患者口腔进行 CT扫描以获得口腔 CT图像, 并根据所获得的口腔 CT 图像制备包含牙齿模型、 牙周膜模型和牙槽骨模型的口腔三维模型; 选择正畸治疗用的矫治器, 将矫治器安装在口腔三维模型的牙齿模型 上并将口腔三维模型中的所有牙齿模型矫正成目标形式;
将口腔三维模型中的待测牙齿模型的牙槽骨模型从相邻两侧牙齿模型 的牙槽骨模型中切割独立出来;
将力学传感器连接至待测牙齿模型的牙槽骨模型上;
将该待测牙齿模型的牙槽骨模型回复至切割前的原位置, 此时力学传 感器测得待测牙齿模型的口腔正畸力数据。
[权利要求 2] 如权利要求 1的口腔正畸力测量的方法, 其特征在于, 在根据所获得 的口腔 CT图像制备包含牙齿模型、 牙周膜模型和牙槽骨模型的口腔 三维模型的过程中, 对口腔 CT图像进行图像处理以及进行逆向工程 分析, 根据图像处理与逆向工程分析结果釆用 3D打印技术制备牙齿 模型和牙槽骨模型, 并釆用胶体材料填充在牙槽骨模型与各个牙齿模 型之间的间隙中成型以模拟患者口腔的牙周膜。
[权利要求 3] 如权利要求 2的口腔正畸力测量的方法, 其特征在于, 胶体材料为 GS 硅胶、 RTV硅胶或其混合体。
[权利要求 4] 如权利要求 1的口腔正畸力测量的方法, 其特征在于, 在对待测牙齿 模型的牙槽骨模型进行切割前, 将安装完成矫治器的口腔三维模型固 定在支撑台上。
[权利要求 5] 如权利要求 1的口腔正畸力测量的方法, 其特征在于, 在将待测牙齿 模型的牙槽骨模型回复至切割前的原位置前, 将安装完成矫治器的口 腔三维模型固定在支撑台上。
[权利要求 6] —种口腔正畸力测量装置, 其特征在于, 包括口腔三维模型、 矫治器
、 力学传感器, 其中, 口腔三维模型包括牙齿模型、 牙周膜模型和牙 槽骨模型, 矫治器安装在牙齿模型上并将所有牙齿模型矫正成目标形
式, 力学传感器连接至待测的牙齿模型的牙槽骨模型上, 并且在测量 口腔正畸力吋, 待测的牙齿模型的牙槽骨模型与待测的牙齿模型的两 侧牙齿模型的牙槽骨模型分离幵。
如权利要求 6的口腔正畸力测量装置, 其特征在于, 口腔正畸力测量 装置还包括支撑台, 在测量口腔正畸力吋口腔三维模型固定在支撑台 如权利要求 6的口腔正畸力测量装置, 其特征在于, 力学传感器包括 力学传感器本体和延伸出力学传感器本体的测量杆, 测量杆连接在待 测的牙齿模型的牙槽骨模型上。
如权利要求 6的口腔正畸力测量装置, 其特征在于, 矫治器为普通钢 牙套、 舌侧牙套、 自锁牙套或无托槽牙套中的一种。
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CN112545679A (zh) * | 2020-11-12 | 2021-03-26 | 哈尔滨理工大学 | 一种用于正畸的牙颌有限元模型建立方法 |
CN112569010A (zh) * | 2020-11-30 | 2021-03-30 | 珠海赛纳三维科技有限公司 | 牙齿矫正模型、牙齿矫正压力测试系统及测试方法 |
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CN111291507B (zh) * | 2019-12-06 | 2023-10-24 | 正雅齿科科技(上海)有限公司 | 一种包含牙周膜的牙齿模型的建模、受力分析方法及装置 |
CN118576353B (zh) * | 2024-07-29 | 2024-10-01 | 四川大学 | 一种口腔正畸牵引受力测试装置 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6120287A (en) * | 1999-08-06 | 2000-09-19 | Advanced Research And Technology Institute, Inc. | Apparatus and method for measuring orthodontic force applied by an orthodontic appliance |
US20090030348A1 (en) * | 2007-07-27 | 2009-01-29 | Ryan Kimura | Concurrently measuring a force exerted upon each of a plurality of teeth |
CN103040535A (zh) * | 2012-12-18 | 2013-04-17 | 浙江工业大学 | 一种三维正畸力检测装置 |
CN103054658A (zh) * | 2012-12-18 | 2013-04-24 | 浙江工业大学 | 一种用于个性化三维正畸力检测的口腔模型的建模方法 |
CN103405276A (zh) * | 2013-07-10 | 2013-11-27 | 浙江工业大学 | 牙齿正畸矫治器的数字化制作方法及其固定矫治器 |
CN103961188A (zh) * | 2014-03-25 | 2014-08-06 | 浙江工业大学 | 一种三维正畸矫治力测量装置 |
CN104523347A (zh) * | 2014-12-17 | 2015-04-22 | 深圳先进技术研究院 | 一种新型口腔正畸力测量方法及装置 |
CN105078606A (zh) * | 2014-05-07 | 2015-11-25 | 上海时代天使医疗器械有限公司 | 牙齿受力测试装置及方法 |
-
2016
- 2016-08-26 WO PCT/CN2016/096852 patent/WO2018035838A1/zh active Application Filing
- 2016-11-11 WO PCT/CN2016/105474 patent/WO2018035985A1/zh active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6120287A (en) * | 1999-08-06 | 2000-09-19 | Advanced Research And Technology Institute, Inc. | Apparatus and method for measuring orthodontic force applied by an orthodontic appliance |
US20090030348A1 (en) * | 2007-07-27 | 2009-01-29 | Ryan Kimura | Concurrently measuring a force exerted upon each of a plurality of teeth |
CN103040535A (zh) * | 2012-12-18 | 2013-04-17 | 浙江工业大学 | 一种三维正畸力检测装置 |
CN103054658A (zh) * | 2012-12-18 | 2013-04-24 | 浙江工业大学 | 一种用于个性化三维正畸力检测的口腔模型的建模方法 |
CN103405276A (zh) * | 2013-07-10 | 2013-11-27 | 浙江工业大学 | 牙齿正畸矫治器的数字化制作方法及其固定矫治器 |
CN103961188A (zh) * | 2014-03-25 | 2014-08-06 | 浙江工业大学 | 一种三维正畸矫治力测量装置 |
CN105078606A (zh) * | 2014-05-07 | 2015-11-25 | 上海时代天使医疗器械有限公司 | 牙齿受力测试装置及方法 |
CN104523347A (zh) * | 2014-12-17 | 2015-04-22 | 深圳先进技术研究院 | 一种新型口腔正畸力测量方法及装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112545679A (zh) * | 2020-11-12 | 2021-03-26 | 哈尔滨理工大学 | 一种用于正畸的牙颌有限元模型建立方法 |
CN112569010A (zh) * | 2020-11-30 | 2021-03-30 | 珠海赛纳三维科技有限公司 | 牙齿矫正模型、牙齿矫正压力测试系统及测试方法 |
CN112569010B (zh) * | 2020-11-30 | 2022-08-05 | 珠海赛纳三维科技有限公司 | 牙齿矫正模型、牙齿矫正压力测试系统及测试方法 |
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