WO2021021045A2 - Procédé de production d'un dispositif de protection dentaire - Google Patents

Procédé de production d'un dispositif de protection dentaire Download PDF

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Publication number
WO2021021045A2
WO2021021045A2 PCT/TR2020/050602 TR2020050602W WO2021021045A2 WO 2021021045 A2 WO2021021045 A2 WO 2021021045A2 TR 2020050602 W TR2020050602 W TR 2020050602W WO 2021021045 A2 WO2021021045 A2 WO 2021021045A2
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WO
WIPO (PCT)
Prior art keywords
tooth
model
parametric
curves
production method
Prior art date
Application number
PCT/TR2020/050602
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English (en)
Other versions
WO2021021045A3 (fr
Inventor
Recep Muhammet GORGULUARSLAN
Selcuk UZEL
Original Assignee
Tobb Ekonomi Ve Teknoloji Universitesi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tobb Ekonomi Ve Teknoloji Universitesi filed Critical Tobb Ekonomi Ve Teknoloji Universitesi
Publication of WO2021021045A2 publication Critical patent/WO2021021045A2/fr
Publication of WO2021021045A3 publication Critical patent/WO2021021045A3/fr

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Classifications

    • 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
    • G06T17/30—Polynomial surface description
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/08—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
    • A63B71/085—Mouth or teeth protectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing

Definitions

  • the present invention relates to a method for making a tooth protector in which a tooth model is created by scanning the tooth structure of the user specific to the user, the same is manufactured by using the created tooth model via a three- dimensional (3D) printer, the mouth and the teeth are protected when the user is in physical action.
  • a tooth model is created by scanning the tooth structure of the user specific to the user, the same is manufactured by using the created tooth model via a three- dimensional (3D) printer, the mouth and the teeth are protected when the user is in physical action.
  • the tooth protector and similar equipment can be used during competition or training, since punching or kicking is used for example in combat sports such as boxing, kickboxing, and Mau Thai.
  • punching or kicking is used for example in combat sports such as boxing, kickboxing, and Mau Thai.
  • some equipment for protecting the mouth for preventing the teeth and the gum from being affected by the blow is used within the mouth.
  • equipment or apparatuses which contain said mouth protector can be used not only in sports events but also in the operations in various health fields in terms of the mouth, tooth and gum health of the patient.
  • the mouth protectors used for the protection of mouth and teeth are preferably manufactured from elastic material such as silicone and have a feature that can be shaped according to the mouth and teeth of the user.
  • the mouth protectors used in the current state of the art are manufactured by three different methods mainly silicone,“boil-bite” and specific designs.
  • the silicone mouth protectors do not protect the teeth and the tooth roots against impacts due to their structure.
  • The“Boil-Bite” mouth protectors provide better protection compared to the silicone mouth protectors however after the boiling process as a method of use, when the person gives form to the soft tissue by means of biting, depending on more or less biting; it can cause the tooth protector unable to perform its task completely.
  • the tooth protectors manufactured specifically for the person is manufactured by means of taking the mouth model of the person by a dentist with the help of a tooth spoon and by using this model as a mold and it provides the best protection but it is very expensive and has a long manufacturing process compared to the other tooth protectors. For this reason, the mouth protector is required to be specific to the user, at the same time it is also required to have a low cost and to be formed in a fast manner. Different from said three methods, the tooth protector can be designed parametrically in the computer environment by means of scanning the tooth structure of the user.
  • the parametric modeling (STL format) is performed.
  • the internal and external boundaries are determined by reading the values in minimum and maximum range of the parametric values.
  • curves are obtained from said boundary values and internal and external boundary points included in the software program with the curve tool that obtains proper curves and the translation angles are calculated.
  • the parametric distance calculation process for a protection part is lacking.
  • the solid model of the mouth and teeth is created in the computer with a three-dimensional (3D) scanning. After a solid model is created in the computer, a parametric distance from the teeth to the protection part (protector) surface and the other boundaries is achieved. After the computer model is created, the parametric modeling (STL format) is performed. During the parametric modeling process, the internal and external boundaries are determined by reading the values in minimum and maximum range of the parametric values. In the invention subject to application, curves are obtained from said boundary values and internal and external boundary points included in the software program with the curve tool that obtains proper curves and the translation angles are calculated. In the invention of said document, the software details are not mentioned. Also in the invention of said document, the mold of the plate is formed instead of the plate.
  • the parametric modeling (STL format) is performed.
  • the internal and external boundaries are determined by reading the values in minimum and maximum range of the parametric values.
  • curves are obtained from said boundary values and internal and external boundary points included in the software program with the curve tool that obtains proper curves and the translation angles are calculated.
  • the solid model of the mouth and teeth is created in the computer with a three-dimensional (3D) scanning.
  • a parametric distance from the teeth to the protection part (protector) surface and the other boundaries is achieved, after a solid model is created on the computer.
  • the parametric modeling (STL format) is performed.
  • the internal and external boundaries are determined by reading the values in minimum and maximum range of the parametric values.
  • curves are obtained from said boundary values and internal and external boundary points included in the software program with the curve tool that obtains proper curves and the translation angles are calculated.
  • the tooth protector can be manufactured with fast production specific to the user.
  • a tooth protector and a production method thereof wherein solid models of mouth and teeth are formed with three-dimensional (3D) scanning, the parametric distance from the teeth to the protection part (protector) surface and the other boundaries is obtained after creating the solid model on the computer, parametric modeling process (STL format) is realized after the computer model is created, the internal and external boundaries are determined by reading the values between minimum and maximum values of the parametric values that are read during parametric modeling process and curves are obtained with these boundary values and smooth curve obtaining tool from the internal and external boundary points in the software program and translation angles are calculated, is not seen.
  • 3D three-dimensional
  • the aim of this invention is to realize a method of producing a tooth protector in which a solid model is created parametrically and manufacturing is made in a faster and user-specific manner by a three-dimensional (3D) printer.
  • Another aim of this invention is to realize a method of producing a tooth protector which allows for determining the parallel surface distance of the tooth protector from the teeth to the transverse plane and the distance from the teeth to the other surfaces.
  • Another aim of this invention is to realize a method of producing a tooth protector which is low cost and enables fast production due to the parallel surface distance of the tooth protector from the teeth to the transverse plane and the distance from the teeth to the other surfaces is parametric.
  • a method for producing a tooth protector is described.
  • the solid model of the tooth structure is generated.
  • three- dimensional computer model of the said solid model is prepared.
  • Parametric tooth modeling is made after the preparation of three-dimensional computer tooth model.
  • the process of obtaining the boundary curves on the parametric model surface is carried out.
  • the coordinates of X, Y, and Z axes on the parametric tooth model are determined.
  • the inner and outer boundary points are determined depending on the said coordinates. Suitable curves are created for the obtained inner and outer boundary points.
  • the formed boundary curves are translated such that from each point they are perpendicular to the curve. Consequently, the shell model is formed from the translated curves, and the formed shell model is manufactured by a three- dimensional printer.
  • Figure 1 Is a schematic view of the tooth protector production method.
  • Figure 2 It is the view of the formed three-dimensional tooth model in the coordinate plane.
  • Figure 3 It is the view of the ceiling and floor points on the surface of the tooth model in a separated manner on the graph.
  • Figure 4. It is the view of the internal and external boundary points obtained from the surface points of the tooth model on the graph.
  • Figure 5 It is the view of the curves obtained according to the inner and outer boundary points obtained from the tooth model on the graph.
  • Figure 6. It is the view of the slope taken from a point of the curve obtained from the tooth model, perpendicular translation slope and the angular equivalents on the graph.
  • Figure 7 It is the view of the perpendicular translation slope obtained from the tooth model and the translated slopes formed with their angular equivalents on the graph.
  • Figure 9 It is the perspective view of the formed parametric tooth model.
  • Figure 10 It is the top view of the formed shell models and the tooth model used in the calculations.
  • the tooth protector which is used for protecting the teeth against impacts in the combat sports, is provided to be specific to the user.
  • a tooth model is formed by means of scanning the tooth structure of the user specific to the user.
  • the tooth protector is manufactured using the created tooth model via a three- dimensional (3D) printer. The impact on the mouth and teeth of the user is enabled to be dampened by using the tooth protector which is produced by using the tooth protector production method (100).
  • the solid tooth model of the user who will use the tooth protector is formed (101).
  • the solid tooth model of the user preferably“Boil-Bite” type mouthpiece is used.
  • the said mouthpiece is heated and thus it is made elastic.
  • the heated mouthpiece is received by the user in his/her mouth and is bitten by the user such that the whole chin is compressed.
  • the model of the tooth and gums are formed on the mouthpiece.
  • said mouthpiece hardens and the model of the teeth and the gums of the user remain by means of hardening.
  • the solid tooth model of the user can be created (101).
  • the solid tooth model of the user can also be obtained by means of using different methods.
  • the achieved solid tooth model is transferred into a three-dimensional computer model (102). Converting said solid model into a computer model can be realized with different programs.
  • a computer model can be formed based on the program used during the conversion of the solid model to a computer model.
  • the created computer model can be adjusted by preferably the three-dimensional drawing based on the computer program used.
  • the user can use different methods for achieving the three-dimensional tooth model.
  • the mouth and tooth structure of the user is scanned by using a three- dimensional scanner.
  • preferably the mold of the tooth structure of the user is formed by using a tooth measurement spoon.
  • the mold of the tooth structure of the user After the mold of the tooth structure of the user is formed, said mold is filled and the solid tooth model is formed.
  • the achieved solid tooth is scanned in the three- dimensional scanner and the computer model is formed.
  • the solid tooth model is transferred into a three-dimensional computer model (102).
  • the process step of making the parametric modeling of the tooth model and achieving the boundary curves on the parametric model surface (103) is initiated.
  • the parametric modeling process with the STL extension to be used in the three-dimensional printers is realized.
  • Said parametric modeling process is the modeling process of the surfaces of the solid tooth model converted into a computer model with preferably the triangular surface elements.
  • the parametric modeling of the surface of the computer model is performed ( Figure 2).
  • the surface geometry of the three- dimensional computer model is illustrated by said parametric modeling. While the parametric modeling of the three-dimensional computer model is made, the surface geometry of the computer tooth model is divided into triangles or combined as triangles. In said STL parametric model, the triangles of which the surface of the tooth model is divided comprise points on X, Y, and Z axes in the coordinate plane and the normal of the points.
  • the tooth model formed in the computer environment is viewed as a point cloud on the scanned surface. A sufficient similarity with the tooth structure of the user can be obtained by means of forming surfaces between the points which are seen in the coordinate plane.
  • the process step of determining the coordinates of X, Y and Z axes on the parametric tooth model surface and determining the inner and outer boundary points based on said coordinates (104) is realized. All points on the surface of the parametric tooth model have equivalents on X, Y, and Z axes in the coordinate plane.
  • a matrix is formed with the points on said X, Y, and Z axes. The matrix formed with the points on said X, Y, and Z axes completely constitute the parametric tooth model.
  • preferably“stlread” function is used for arranging the matrix formed by the points in said X, Y and Z- axes.
  • the process step of making the parametric modeling of the tooth model which is transformed into three-dimensional computer model and achieving the boundary curves on the parametric model surface (103) different methods can be used to obtain the ceiling and floor curves of the tooth protector whose parametric model will be created.
  • the ceiling and floor points of the tooth model on the Z-axis can be determined.
  • the midpoint on the Z-axis of the tooth model can be calculated by said software function.
  • the points between the midpoint determined on the Z-axis on the parametric tooth model and the ceiling point are enabled to be positioned on a ceiling matrix; the points between the midpoint and the floor point are enabled to be positioned on a floor matrix.
  • the tooth model is enabled to be shaped with the points separated as floor and ceiling ( Figure 3).
  • the process of forming the surfaces of the tooth protector is initiated by separating the parametric tooth model into matrixes such as the ceiling and the floor. In total, four curves are formed, two of which are on the ceiling, and two of which are on the floor, in order to create surfaces that belong to the tooth protector.
  • the ceiling and floor matrixes which are directly taken from the surface of the tooth model formed on the parametric tooth model are used in order to create two curves on the ceiling and floor.
  • the inner boundary points on the ceiling matrixes for the curve which will remain on the tongue portion of the teeth, the outer boundary points on the ceiling matrixes for the curve which will remain on the cheek part of the teeth are determined first of all during the formation of the ceiling curves by means of the ceiling and floor matrixes taken directly from the tooth model surface which is formed on the said parametric tooth model.
  • the process of forming the above- mentioned ceiling curves is also used in the process of forming the floor curves.
  • An average value in the X-axis according to the minimum and maximum values in the ceiling and floor point matrixes is found in order to determine the inner boundary points.
  • the points that are smaller and greater than the value in the X- axis whose average is determined for each value defined in Y-axis in the ceiling and floor point matrixes are separated for determining the outer boundary points.
  • the minimum and maximum values of the points that are smaller and larger than the average values taken according to X-axis are separated for each value in Y- axis separately.
  • the inner and outer boundary points are obtained for the values on the determined X and Y- axes ( Figure 4).
  • suitable curves are created for the obtained inner and outer boundary points (105).
  • Continuously formed curves are created by using the inner and outer boundary points obtained in the process step of making the parametric modeling of the tooth model which is transformed into three-dimensional computer model and achieving the boundary curves on the parametric model surface (103) ( Figure 5).
  • Different software programs can be used in order to create continuous curves.
  • the “Curve Fitting Tool” in the MATLAB is used.
  • an algorithm is created in order to form a polynomial type curve with a preferred degree for forming continuous curves.
  • the methods of adapting the parameters by calculating the same which is suitable for a function of the point coordinates to which a curve will be assigned based on the preferred function and forming the curve by using control points and by using fewer parameters by using methods such as Hermite, Bezier, B-Spline, and Non-Uniform Rational B-Spline, etc. can be used.
  • the process step of translating the formed boundary curves such that from each point they are perpendicular to the curve (106) is realized.
  • Different curves are created by translating the same at a distance determined by the user that is vertical to the curves suitable to the inner and outer boundary points at each point. Said curves are used to form the outer surfaces of the tooth protector.
  • the inner surface of the tooth protector is formed by the created parametric tooth surface. Increasing the parametric translation distance of the curves formed according to the inner and outer boundary points also increases the thickness for the ceiling and floor of the tooth protector.
  • the translated curves are obtained, the slope of the curve at certain intervals on the curve is calculated. The angular equivalent of the curve is found by using the calculated slope.
  • the vertical translation angle to be made in the determined points by taking 90“phase difference in the counterclockwise direction of the found angle is calculated ( Figure 6).
  • a transformation matrix is used in the process step of translating the formed boundary curves such that from each point they are perpendicular to the curve (106), for the translation process of the curves.
  • the first location of said points is accepted as the origin of the translation process in the translation process to be carried out for a preferred point on the boundary curves.
  • the preferred points are translated by the preferred translation amount on the X-axis and it is rotated around the Z-axis in an amount of the calculated translation angle.
  • the values on X and Y axes that belong to the point where said processes are applied can change.
  • the coordinates of the translated points are obtained by means of adding the obtained new coordinate value on X and Y axes to the coordinate values of the points themselves ( Figure 7).
  • the processes of forming the shell model formed by the translated curves and manufacturing the tooth protector design by the three-dimensional printer with the formed shell model (107) are realized ( Figure 8-10).
  • the process of translating the boundary curves such that from each point they are perpendicular to the curve (106) is provided by changing the Z-axis value of each point depending on the fact that the boundary curves in the tooth model are formed in XY coordinate plane.
  • the translation distances of the curves in the XY plane and X-axis constitute the parametric measures in the design of the shell model to be formed with said curves.
  • a software function is used for forming the shell model with the translated curves.
  • a “surf2stl” software function is used for forming the shell model with the translated curves. Based on the operating system of said“surf2stl” function, there is a common curve for each surface between the surface before and after it. The coordinates of the curves translated such that they fulfill the abovementioned condition in X, Y, and Z- axes are given as an input to the“surf2stl” function and a shell model is formed ( Figure 9).

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Abstract

La présente invention concerne un procédé (100) pour produire un dispositif de protection dentaire qui permet d'atténuer l'impact sur la bouche et les dents de l'utilisateur, procédé selon lequel un modèle dentaire est créé par balayage de la structure dentaire de l'utilisateur, spécifique à l'utilisateur, et fabriqué à l'aide du modèle dentaire créé au moyen d'une imprimante tridimensionnelle (3D).
PCT/TR2020/050602 2019-07-31 2020-07-08 Procédé de production d'un dispositif de protection dentaire WO2021021045A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2019/11545A TR201911545A2 (tr) 2019-07-31 2019-07-31 Bi̇r koruma di̇şli̇ği̇ üreti̇m yöntemi̇
TR2019/11545 2019-07-31

Publications (2)

Publication Number Publication Date
WO2021021045A2 true WO2021021045A2 (fr) 2021-02-04
WO2021021045A3 WO2021021045A3 (fr) 2021-03-04

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PCT/TR2020/050602 WO2021021045A2 (fr) 2019-07-31 2020-07-08 Procédé de production d'un dispositif de protection dentaire

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WO (1) WO2021021045A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113919034A (zh) * 2021-10-20 2022-01-11 中国建筑第八工程局有限公司 用于变截面双曲梁的gh参数化建模方法及系统

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Publication number Priority date Publication date Assignee Title
US9421074B2 (en) * 2001-04-13 2016-08-23 Orametrix, Inc. Unified three dimensional virtual craniofacial and dentition model and uses thereof
JP6966839B2 (ja) * 2014-04-01 2021-11-17 オーベンタス・メディカル・リミテッドOventus Medical Limited 呼吸補助装置
US10548690B2 (en) * 2015-10-07 2020-02-04 uLab Systems, Inc. Orthodontic planning systems
WO2019012306A2 (fr) * 2016-03-30 2019-01-17 P3 Athletics Inc. Procédé d'impression additive d'un embout buccal d'accroissement des voies aériennes et de l'oxygénation
EP4241725A3 (fr) * 2017-03-20 2023-11-01 Align Technology, Inc. Génération de représentation virtuelle d'un traitement orthodontique d'un patient
WO2019100022A1 (fr) * 2017-11-17 2019-05-23 Align Technology, Inc. Dispositifs de retenue orthodontiques

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113919034A (zh) * 2021-10-20 2022-01-11 中国建筑第八工程局有限公司 用于变截面双曲梁的gh参数化建模方法及系统
CN113919034B (zh) * 2021-10-20 2024-03-12 中国建筑第八工程局有限公司 用于变截面双曲梁的gh参数化建模方法及系统

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TR201911545A2 (tr) 2021-02-22
WO2021021045A3 (fr) 2021-03-04

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