WO2022177146A1 - Système et procédé de génération de données orthodontiques - Google Patents

Système et procédé de génération de données orthodontiques Download PDF

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Publication number
WO2022177146A1
WO2022177146A1 PCT/KR2022/000140 KR2022000140W WO2022177146A1 WO 2022177146 A1 WO2022177146 A1 WO 2022177146A1 KR 2022000140 W KR2022000140 W KR 2022000140W WO 2022177146 A1 WO2022177146 A1 WO 2022177146A1
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data
tooth
axis
orthodontic
axis direction
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PCT/KR2022/000140
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English (en)
Korean (ko)
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이효연
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마이라인 주식회사
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Publication of WO2022177146A1 publication Critical patent/WO2022177146A1/fr

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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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • 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
    • 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
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T19/00—Manipulating 3D models or images for computer graphics
    • G06T19/20—Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/30—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H30/00—ICT specially adapted for the handling or processing of medical images
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • A61B2018/2035—Beam shaping or redirecting; Optical components therefor
    • A61B2018/20351—Scanning mechanisms
    • A61B2018/20353—Scanning in three dimensions [3D]
    • 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
    • A61C2007/004—Automatic construction of a set of axes for a tooth or a plurality of teeth
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing
    • G06T2207/30036—Dental; Teeth
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2210/00—Indexing scheme for image generation or computer graphics
    • G06T2210/41—Medical
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2219/00—Indexing scheme for manipulating 3D models or images for computer graphics
    • G06T2219/20—Indexing scheme for editing of 3D models

Definitions

  • the present invention relates to a system and a method for generating orthodontic data, and more particularly, to a set-up data in which tooth models, which are three-dimensional shape information of teeth, are rearranged to positions to be corrected quickly and easily. It relates to a system and method for generating orthodontic data.
  • Orthodontic treatment refers to a functional/esthetic treatment that moves the teeth to a desired position within the alveolar bone by applying an appropriate force to the teeth.
  • malocclusion A case in which the teeth are not evenly aligned is called malocclusion.
  • malocclusion not only does it look unsightly, but also functionally, it is impossible to chew food well, and it may adversely affect pronunciation.
  • the malocclusion is left unattended, the likelihood of tooth decay or gum disease increases, and it may affect other parts of the body for a long period of time, possibly causing or exacerbating other diseases.
  • An orthodontic appliance for fixing the position of the teeth by gradually moving the teeth is used for orthodontic treatment.
  • Conventional general orthodontic braces include an orthodontic bracket (bracket) and an arch wire having elasticity (Arch wire).
  • the bracket is firmly attached to the tooth face of the tooth to be corrected, and the arch wire is connected to these brackets. If the direction and magnitude of the force applied to the arch wire is varied by adjusting the tension of the arch wire connected to the brackets in this way, the malocclusion tooth changes its position and posture by the tension of the arch wire, and the teeth The teeth are straightened by moving little by little.
  • a process of acquiring three-dimensional shape data of the patient's oral structure and visualizing the ideal tooth arrangement state from the obtained patient's three-dimensional oral structure is involved. To do this, adjust the dental axis (axis of the crown) of the tooth models out of the normal range to the correct position.
  • the coordinates of the FA point of each tooth model are obtained, the brackets are arranged at the coordinates of the FA point of each tooth model obtained, and the wire is arranged so that the wire is connected to the bracket of each tooth. data was generated.
  • the orthodontic data generating system has a problem in that it is difficult to manipulate the dental axis (the axis of the crown) of each tooth model to a correct position, so it takes a lot of time and the accuracy is not high.
  • An object of the present invention is to provide an orthodontic data generation system and a method for generating orthodontic data that are easy to operate, thereby reducing the time required for generating set-up data required for orthodontics and increasing accuracy.
  • data of a tooth model that is three-dimensional shape information of teeth in the tooth data received from a dental data acquisition device that acquires tooth data, which is three-dimensional shape information of a patient's teeth, for orthodontic treatment and a setup data generating device that extracts and generates setup data rearranged to a position in which the tooth model is to be corrected, wherein the setup data generating device includes a plurality of bounding boxes in which each of the tooth models is disposed.
  • Orthodontic data generation system characterized in that it can be provided.
  • the bounding box may be individually created for each tooth model.
  • the bounding box may be formed in a hexahedral shape.
  • the bounding box is rotatable about a first axial direction as a rotation axis, and is rotatable with a second axis direction intersecting the first axial direction as a rotation axis, and in the first axial direction and the second axial direction It may be rotatable by using the intersecting third axis direction as the rotation axis.
  • the setup data generating apparatus may include: an input unit for receiving information from a user; a calculation unit that generates the setup data, is electrically connected to the input unit, rotates the bounding box according to information input from the user, and corrects the setup data; and a display unit electrically connected to the operation unit and visually displaying the setup data and the bounding box.
  • the calculator may be configured to divide the display area of the display unit into a setup data display area in which the setup data is displayed, and a tooth model display area in which one selected tooth model and the bounding box of the set-up data are displayed. .
  • the tooth model display area may include a first area in which a flat image formed in the second axis direction and the third axis direction is shown; a second region in which a planar image formed by the first axial direction and the third axial direction is shown; and a third region in which a planar image formed by the first axial direction and the second axial direction is shown.
  • receiving tooth data which is 3D shape information of the patient's teeth
  • extracting data of a tooth model which is 3D shape information of the teeth
  • Including a setup data generation step of generating setup data rearranged as A method may be provided.
  • the bounding box may be individually created for each tooth model.
  • the bounding box may be formed in a hexahedral shape.
  • the bounding box is rotatable about a first axial direction as a rotation axis, and is rotatable with a second axis direction intersecting the first axial direction as a rotation axis, and in the first axial direction and the second axial direction It may be rotatable by using the intersecting third axis direction as the rotation axis.
  • the display area of the screen provided to the user may be divided into a setup data display area in which the setup data is displayed, and a tooth model display area in which one tooth model selected from among the tooth models of the setup data and the bounding box are displayed.
  • the setup data displayed on the setup data display area may be changed according to rotation of the bounding box displayed on the tooth model display area.
  • the tooth model display area may include a first area in which a flat image formed in the second axis direction and the third axis direction is shown; a second region in which a planar image formed by the first axial direction and the third axial direction is shown; and a third region in which a planar image formed by the first axial direction and the second axial direction is shown.
  • Embodiments of the present invention by having a setup data generating device that generates a plurality of bounding boxes in which each of the tooth models is disposed, it is possible to reduce the time required for generating the setup data required for orthodontic treatment and improve accuracy can be raised
  • FIG. 1 is a view showing an orthodontic data generating system according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating a tooth model of the tooth data acquired by the device for acquiring the tooth data of FIG. 1 and a tooth model rearranged by the device for generating set-up data.
  • FIG. 3 is a view illustrating a state in which a setup data display area and a tooth model display area are shown on the display unit of FIG. 1 .
  • FIG. 4 is a view showing a tooth model display area of FIG. 3 .
  • FIG. 5 is a diagram illustrating a state in which a setup data display area and a reference distance display area are shown on the display unit of FIG. 1 .
  • FIG. 6 is a diagram illustrating a reference distance display area of FIG. 5 .
  • FIG. 7 is a diagram illustrating a state in which tooth models are rearranged based on a wire model.
  • FIG. 8 is a view showing a state in which the bracket model is attached to the tooth model of FIG. 5 .
  • FIG. 9 is a view showing a fixing jig
  • FIG. 10 is a view showing a state in which the fixing jig of FIG. 9 is connected to the teeth.
  • FIG. 11 is a diagram illustrating an orthodontic data generating method of the orthodontic data generating system of FIG. 1 .
  • FIG. 1 is a view showing an orthodontic data generating system according to an embodiment of the present invention
  • FIG. 2 is a rearranged by the dental model and setup data generating device of the tooth data acquired by the dental data acquiring device of FIG. 3 is a view showing a state in which the setup data display area and the tooth model display area are shown on the display unit of FIG. 1
  • FIG. 4 is a view showing the tooth model display area of FIG. 5 is a view showing a state in which the setup data display area and the reference distance display area are shown on the display unit of FIG. 1
  • FIG. 6 is a view showing the reference distance display area of FIG. 5
  • FIG. 7 is a wire model It is a view showing a state in which the tooth models are rearranged on the basis of
  • FIG. 8 is a view showing a state in which a bracket model is attached to the tooth model of FIG. 5
  • FIG. 9 is a view showing a fixing jig
  • FIG. 10 is a diagram illustrating a state in which the fixing jig of FIG. 9 is connected to a tooth
  • FIG. 11 is a diagram illustrating an orthodontic data generation method of the orthodontic data generation system of FIG. 1 .
  • the orthodontic data generating system transmits the dental data from the dental data acquisition device 110 that acquires dental data that is 3D shape information about the patient's teeth for orthodontic treatment. and a receiving setup data generator 120 .
  • the dental data acquisition device 110 acquires dental data, which is 3D shape information about the patient's teeth for orthodontic treatment.
  • the dental data acquisition device 110 of the present embodiment may acquire dental data by three-dimensionally scanning the patient's dental plaster (not shown).
  • the dental plaster pattern (not shown) of this embodiment is formed in the shape of the patient's teeth and gums, and after the tray provided with the impression material is inserted into the recipient's oral cavity, the recipient's teeth press the impression material to make the impression of the raised teeth and surrounding gums. made in the shape
  • the dental data acquisition apparatus 110 of the present embodiment may acquire dental data by directly three-dimensionally scanning the patient's oral cavity.
  • the dental data acquisition device 110 of this embodiment is a three-dimensional scanner that can scan the patient's dental plaster (not shown) or the patient's oral cavity, and the dental data can be easily recognized by the setup data generating device 120 . It is data in which the surface of a three-dimensional object is expressed as a polygonalized polygon.
  • the setup data generating apparatus 120 receives the tooth data, extracts the data of the tooth model, which is the three-dimensional shape information of the teeth, from the tooth data, and visually displays the data. In addition, the setup data generating apparatus 120 of the present embodiment generates setup data rearranged to positions where the tooth models are to be corrected.
  • the setup data generating device 120 includes an information processing device such as a computer and a mobile terminal. As shown in FIG. 1 , the setup data generating device 120 includes an input unit 130 that receives information from a user, and generates setup data and is electrically connected to the input unit 130 to receive information input from the user. It includes a calculation unit 140 for correcting the setup data accordingly, and a display unit 150 electrically connected to the calculation unit 140 and visually displaying the setup data.
  • the calculating unit 140 may correspond to a personal computer (PC) body
  • the input unit 130 may correspond to a keyboard, a mouse, and a touch screen
  • the display unit 150 may correspond to a monitor.
  • the calculator 140 receives the tooth data acquired by the dental data acquisition device 110 .
  • the calculator 140 extracts data of the tooth model from the tooth data.
  • the calculation unit 140 generates a plurality of bounding boxes BX in which each tooth model is disposed and displays it on the display unit 150 .
  • the bounding box BX is individually generated for each tooth model, the bounding box BX is generated as many as the number of tooth models.
  • the bounding box BX is formed in a hexahedral shape.
  • the bounding box BX represents a three-dimensional coordinate axis set based on an occlusal plane.
  • the three-dimensional coordinate axis forming the bounding box BX includes a first axis X perpendicular to an occlusal plane, a second axis Y and a third axis perpendicular to each other forming an occlusal plane It consists of an axis (Z).
  • FIG. 2 (a) shows a state in which the bounding box BX is generated in the patient's dental models
  • FIG. 2 (b) shows that each tooth model of FIG. The rearranged state to the position to be corrected is shown.
  • the bounding box BX is the first axis (X), the second axis (Y), and the outermost coordinates in the third axis (Z) direction of the tooth model outer shape of the first axis (X) and the second It is formed in a hexahedral shape cut by a plane formed by the axis Y, a plane formed by the second axis Y and the third axis Z, and a plane formed by the third axis Z and the first axis X.
  • the calculator 140 rearranges the bounding box BX in which the tooth model is disposed based on the wire model WM input from the user to generate primary setup data. At this time, the dental axis (the axis of the crown) of each tooth model is adjusted to the correct position (the correct dental axis direction from the point of view of orthodontics) in a state that is shifted in an abnormal direction.
  • the bounding box BX is set in the first axis (X) direction and in the second It is possible to change the tooth axis of the individual tooth model by independently rotating in each of the axis (Y) direction and the third axis (Z) direction.
  • the bounding box BX is rotatable in the first axis (X) direction, in the second axis (Y) direction, and in the third axis (Z) direction, respectively, as rotation axes.
  • the rotation of the bounding box BX may be performed by a user's manipulation.
  • a user's manipulation of rotating the bounding box BX is transmitted to the operation unit 140 through the input unit 130, and the operation unit 140 rotates the bounding box BX according to information input from the user to perform the primary setup
  • the data is corrected and the corrected setup data and the bounding box BX are displayed on the display unit 150 .
  • the operation unit 140 sets the display area of the display unit 150 to a setup data display area 151 in which setup data is displayed, and a tooth model of the setup data. It is divided into a tooth model display area 152 in which the tooth model and the bounding box BX are displayed.
  • setup data of tooth models is displayed in the setup data display area 151 of the display unit 150 .
  • a bounding box BX is displayed on the tooth model selected by the user from among the tooth models.
  • the tooth model display area 152 includes a first area 152a in which a flat image formed in the second axis (Y) direction and the third axis (Z) direction is shown, A second region 152b showing a planar image formed by the first axis (X) direction and the third axis (Z) direction, and a planar image formed by the first axis (X) direction and the second axis (Y) direction It includes a third region 152c shown, and an operation region 152d for axial adjustment to receive a user's manipulation.
  • Each of the first area 152a, the second area 152b, and the third area 152c displays the front, bottom and side surfaces of one tooth model selected in the setup data display area 151 .
  • the tooth axis adjustment operation button (BT) for rotating the tooth model in the first axis (X) direction, the second axis (Y) direction, and the third axis (Z) direction in the operation area for adjusting the tooth axis (152d) to the rotation axis center this is provided
  • the operation button for tooth axis adjustment (BT) is a first axis (X) direction, a second axis (Y) direction, and a third axis (Z) direction for each axial direction in the direction of the two buttons for rotating in the other direction opposite to one direction. A total of 6 are provided.
  • the user can rotate the tooth model in the first axis (X) direction, the second axis (Y) direction, and the third axis (Z) direction as the rotation axis by pressing the tooth axis adjustment operation button (BT) by clicking the mouse. have.
  • the bounding box BX is also rotated according to the rotation of the tooth model.
  • the user may place a mouse point on each of the first region 152a, the second region 152b, and the third region 152c and rotate the tooth model by a desired angle through clicking and dragging.
  • the rotation angle of the tooth model rotated by the user in the tooth model display area 152 is reflected in the setup data display area 151 as it is.
  • the user can select a tooth model that needs manipulation among several tooth models displayed in the setup data display area 151. It can also be returned to the original position before the change.
  • the orthodontic data generating system generates a plurality of bounding boxes BX in which each of the tooth models is disposed, so that each of the tooth models can be visually emphasized.
  • Each tooth model can be easily rotated to adjust the dental axis (axis of the crown) from an abnormal direction to the correct position, thereby shortening the operation time and increasing the accuracy.
  • the setup data generating apparatus 120 generates secondary setup data by rearranging the tooth models whose tooth axes are adjusted based on the wire model WM.
  • the wire model WM is a model of a wire to be used for orthodontic treatment in a patient, and the wire model WM is pre-selected by the user.
  • the setup data generating device 120 positions each of the tooth models according to the reference distance, which is the distance to the tip of cusp or incisal margin of each of the tooth models based on the wire model WM. make it
  • the reference distance is the distance from the wire model (WM) to the tip of cusp or incisal margin of each of the tooth models, and this reference distance is the tooth number (a number usually attached to teeth in dentistry). each is different according to In addition, the reference distance is a distance in the first axis (X) direction.
  • the cusp is the most protruding part of the cusp where the mortar ball plays a role in chewing or tearing teeth (canines, molars, small molars or canines, premolars, and molars). refers to the side that cuts off from
  • the reference distance is preset and input to the calculator 140 of the setup data generating apparatus 120 in advance.
  • the reference distance is visually displayed on the display unit 150 and can be changed by a user.
  • the operation unit 140 divides and displays the display area of the display unit 150 as shown in FIG. 5 .
  • the display unit 150 is divided into a setup data display area 151 in which setup data and the wire model WM are displayed, and a reference distance display area 153 in which reference distances are displayed in a table form.
  • the reference distance is displayed in the form of a table. As shown in FIG. 6 , in the reference distance display area 153 , the reference distance for each tooth is displayed as a number.
  • the user may individually change the reference distance of each tooth through the input unit 130 , and the position of the tooth model displayed on the setup data display area 151 is changed according to the changed reference distance and the setup data is corrected.
  • the setup data generating device 120 arranges each tooth model so that the tip of cusp or incisal margin of each tooth model is positioned above and below the wire model WM by a reference distance. do.
  • the orthodontic data generating system includes a setup data generating device 120 that rearranges each of the tooth models based on the wire model WM, so that, as in the prior art, Since there is no need to obtain an FA point, the time for rearranging the dental models to the orthodontic position can be reduced and the accuracy thereof can be increased.
  • the calculation unit 140 of the setup data generating device 120 displays the bracket model BRM connected to the wire model WM and attached to each of the tooth models on the display unit 150 .
  • the bracket model (BRM) is a model of the shape of the bracket (BR) to be attached to the actual teeth of the patient, and the data of the bracket model (BRM) is stored in advance in the database of the operation unit (140).
  • the position where the bracket (BR) is to be attached to the tooth is a position where the wire passes, and the position in the vertical direction among the position coordinates to which the bracket (BR) is to be attached is the coordinate corresponding to the above-described reference distance. It is a position separated upward (in the case of upper teeth) or downward (in the case of lower teeth) by a value indicated in the reference distance from the tip of cusp or incisal margin of each of the tooth models.
  • the operation unit 140 of the setup data generating device 120 generates a model of the fixing jig (G) to which the bracket model (BRM) is connected.
  • the model of the fixing jig (G) is a model of an actual fixing jig (G) connected to the patient's teeth, and this fixing jig (G) determines the position of the bracket (BR) in the process of attaching the bracket (BR) to the teeth guide
  • the shape of the fixing jig (G) may vary according to the shape of the patient's tooth model. Therefore, the setup data generating device 120 generates a fixed jig model by calculating the shape data of the fixing jig (G) that is optimized for the patient's teeth and can easily guide the position of the bracket (BR), and the generated fixing The shape of the jig model is converted into data.
  • the data of the fixed jig (G) model generated by the setup data generating device 120 is transferred to a separate jig manufacturing device (not shown).
  • the jig manufacturing device produces a fixed jig (G) through 3D printing technology.
  • the data of the fixing jig (G) model is information about the shape of the fixing jig (G), and the data of the fixing jig (G) model varies according to the position of the bracket (BR) for each tooth.
  • This fixing jig (G) is, as shown in FIGS. 9 and 10, a cap (G1) in which a tooth contact portion surrounding the upper surface of the tooth is formed at the lower portion, and a connector bent on one side of the cap (G1) ( G2) and a bracket fixing part (G3) formed at the end of the connector (G2) and provided with an insertion groove (G5) into which the bracket (BR) fixed to the teeth is fitted.
  • a tooth contact portion surrounding the upper surface of the tooth is formed in the lower portion of the cap G1.
  • the lower portion of the tooth contact portion is formed in a shape corresponding to the upper surface of the tooth.
  • the connector G2 is bent at one side of the cap G1.
  • the connector (G2) is formed smaller than the size of the cap (G1) for smooth coupling or separation of the teeth of the fixing jig (G).
  • the connector G2 may be bent in a right angle shape to prevent contact with the teeth and gums.
  • the bracket fixing part (G3) is formed at the end of the connector (G2) and the insertion groove (G5) into which the bracket (BR) fixed to the teeth is fitted is formed.
  • an exposure hole (G4) for exposing the bracket (BR) to the outside is formed.
  • the user can remove the fixing jig (G) from the teeth while pressing the bracket (BR) with a separate pressing member. ) can be avoided.
  • the orthodontic data generation method includes a tooth data acquisition step (S110) of acquiring tooth data, which is three-dimensional shape information about the patient's teeth for orthodontic treatment, and a tooth data from the tooth data by receiving the tooth data.
  • tooth data which is 3D shape information about the patient's teeth, is acquired for orthodontic treatment.
  • the dental plaster of the patient (not shown) or the inside of the patient's oral cavity is three-dimensionally scanned by the dental data acquisition device 110 to generate dental data.
  • the tooth data is received and the setup data is generated.
  • data of a tooth model is extracted from the tooth data, and the extracted tooth models are rearranged to a position to be corrected.
  • the setup data generation step (S120) includes a wire selection step in which a wire model WM is selected, and a box generation step in which a plurality of bounding boxes BX in which each of the tooth models are disposed is generated ( S121), the tooth axis setting step (S122) in which the tooth axis of each of the tooth models is adjusted to the correct position in an abnormal direction based on the wire model (WM), and each of the tooth models based on the wire model (WM)
  • a wire model (WM) to be used for orthodontic treatment is selected by the user. This user's selection is transmitted to the operation unit 140 through the input unit 130 .
  • the tooth axis of each of the tooth models is adjusted to the correct position (the correct tooth axis direction from the point of view of orthodontics) in the direction that is abnormally shifted based on the wire model WM.
  • the tooth axis setting step (S122) is automatically performed by the operation unit 140, and after this automatic tooth axis setting, when the user (dentist) determines that fine correction of the tooth axis is necessary, the input unit ( 130) to adjust the direction of the tooth axis of the individual tooth model.
  • each of the tooth models is rearranged based on the wire model WM in the wire reference arrangement step S123.
  • each of the tooth models is positioned according to the reference distance based on the wire model WM.
  • the reference distance is displayed on the display unit 150 in the form of a table, the user can change the reference distance of each tooth through the input unit 130, and the position of the tooth model displayed in the setup data display area 151 according to the changed reference distance is changes and the setup data is modified.
  • bracket model (BRM) attached to each of the tooth models is displayed on the display unit 150 .
  • the data of the bracket model (BRM) is stored in advance in the database of the operation unit (140).
  • the selection of the bracket model (BRM) to be used in the various types of bracket models (BRM) may be performed after the wire reference arrangement step (S123), and may be selected before the wire selection step or after the wire selection step.
  • bracket model (BRM) other than the bracket model (BRM) selected in the bracket display step
  • jig data generation step (S124) data of the fixed jig (G) model connected to the bracket model (BRM) is generated.
  • data of a fixed jig (G) model of various shapes is generated according to the shape of the tooth model and the type of the bracket model (BRM) according to the above-described setup data and data of the bracket model (BRM). .
  • the jig manufacturing apparatus receives the data of the jig model and manufactures the fixing jig (G).
  • the fixing jig (G) is connected to the teeth in the process of attaching the bracket (BR) to the teeth and serves to guide the position of the bracket (BR).
  • the orthodontic data generating method reduces the time required for generating setup data required for orthodontic treatment by generating a plurality of bounding boxes BX in which each of the tooth models is disposed. and can improve accuracy.
  • the present invention can be used in the medical industry, in particular in the dental care industry.

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  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
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  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne un procédé et un système permettant de générer des données orthodontiques. Un système de génération de données orthodontiques selon la présente invention comprend un appareil de génération de données de mise en place qui extrait des données pour des modèles dentaires, les données étant des données de forme dentaire tridimensionnelle provenant de données dentaires reçues d'un appareil d'acquisition de données dentaires qui obtient des données dentaires tridimensionnelles de patients pour un traitement orthodontique, et génère des données de mise en place dans lesquelles les modèles dentaires sont réalignés dans des positions de correction, l'appareil de génération de données de mise en place générant une pluralité de rectangles englobants dans lesquelles des modèles dentaires respectifs sont placés.
PCT/KR2022/000140 2021-02-18 2022-01-05 Système et procédé de génération de données orthodontiques WO2022177146A1 (fr)

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KR10-2021-0022143 2021-02-18
KR1020210022143A KR20220118245A (ko) 2021-02-18 2021-02-18 치열 교정 데이터 생성시스템 및 생성방법

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100060822A (ko) * 2008-11-28 2010-06-07 이한나 검색 시스템, 검색 시스템에서 치아 교정/성형 상담 서비스를 중계하는 방법 및 그 방법을 실행시킬 수 있는 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체
KR101218388B1 (ko) * 2011-11-25 2013-01-03 김태원 투명 교정기 제조용 교정 치아 데이터 생성 장치
WO2017043900A1 (fr) * 2015-09-09 2017-03-16 홍경재 Procédé de service de devis destiné à une gouttière occlusale transparente et appareil associé
KR20200008403A (ko) * 2018-07-16 2020-01-28 김정일 자동 치열 교정 데이터 생성방법
KR20200113449A (ko) * 2019-03-25 2020-10-07 주식회사 바이오큐빅스 치아 교정을 위한 진단 정보의 제공 방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020012088A (ko) 2000-08-05 2002-02-15 방광원 경마 베팅분석 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100060822A (ko) * 2008-11-28 2010-06-07 이한나 검색 시스템, 검색 시스템에서 치아 교정/성형 상담 서비스를 중계하는 방법 및 그 방법을 실행시킬 수 있는 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체
KR101218388B1 (ko) * 2011-11-25 2013-01-03 김태원 투명 교정기 제조용 교정 치아 데이터 생성 장치
WO2017043900A1 (fr) * 2015-09-09 2017-03-16 홍경재 Procédé de service de devis destiné à une gouttière occlusale transparente et appareil associé
KR20200008403A (ko) * 2018-07-16 2020-01-28 김정일 자동 치열 교정 데이터 생성방법
KR20200113449A (ko) * 2019-03-25 2020-10-07 주식회사 바이오큐빅스 치아 교정을 위한 진단 정보의 제공 방법

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