WO2017066935A1 - Dispositif d'aide de rétablissement de relation maxillo-mandibulaire oral, procédé et dispositif de rétablissement - Google Patents

Dispositif d'aide de rétablissement de relation maxillo-mandibulaire oral, procédé et dispositif de rétablissement Download PDF

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Publication number
WO2017066935A1
WO2017066935A1 PCT/CN2015/092409 CN2015092409W WO2017066935A1 WO 2017066935 A1 WO2017066935 A1 WO 2017066935A1 CN 2015092409 W CN2015092409 W CN 2015092409W WO 2017066935 A1 WO2017066935 A1 WO 2017066935A1
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WO
WIPO (PCT)
Prior art keywords
mandibular
maxillary
model
pad
jaw
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PCT/CN2015/092409
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English (en)
Chinese (zh)
Inventor
孙玉春
王勇
胡哲文
李伟伟
范宝林
Original Assignee
北京大学口腔医院
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.)
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Application filed by 北京大学口腔医院 filed Critical 北京大学口腔医院
Priority to CN201580002570.7A priority Critical patent/CN107427344B/zh
Priority to PCT/CN2015/092409 priority patent/WO2017066935A1/fr
Publication of WO2017066935A1 publication Critical patent/WO2017066935A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis

Definitions

  • the invention relates to the field of stomatology, in particular to an oral upper and lower jaw relationship reconstruction auxiliary device, a reconstruction method and a device.
  • the object of the present invention is to improve the efficiency and precision of three-dimensional reconstruction of the oral upper and lower jaw model.
  • an oral and maxillary relationship reconstruction assisting device comprising: an upper jaw spacer for fixing an upper jaw model of an oral upper and lower jaw model; and a lateral positioning surface of the upper jaw spacer for positioning the upper jaw spacer; a mandibular spacer for fixing a mandibular model of the oral upper and lower jaw model; a positioning marker on the side of the mandibular spacer for positioning the mandibular spacer; a base comprising: an upper base for limiting the height of the upper jaw spacer; and a lower base for The lower jaw spacer is placed; the support structure is used for fixing and connecting the upper base and the lower base.
  • the upper jaw spacer comprises more than three positioning marking points, the positioning marking points are located on more than two sides of the upper jaw spacer; the lower jaw spacer comprises more than three positioning marking points, and the positioning marking points are located in more than two of the lower jaw spacers. side.
  • the positioning marker points are hemispherical protrusions or hemispherical depressions.
  • the downward side of the upper base has a first connection structure for attaching the upper jaw spacer to the upper base.
  • the upward side of the lower base has a second connection structure for connecting the lower jaw spacer to the lower base.
  • the downward side of the upper base has a first limiting structure for limiting lateral displacement of the upper jaw.
  • the upward side of the lower base has a second limiting structure for limiting lateral displacement of the lower jaw spacer.
  • first connecting structure and the second connecting structure are magnets.
  • the first limiting structure and the second limiting structure are card slots.
  • the upper base has a base retention structure for securing the upper base to the support structure.
  • the top of the support structure is a threaded structure
  • the base retaining structure is a retaining screw
  • the predetermined distance between the upper base and the lower base is 8-10 cm.
  • the middle portion of the support structure has a middle segment mark for defining the height of the mandibular pad to the mandibular model after the mandibular model is fixed to the mandibular pad, and the maxillary model is fixed to the maxillary pad, the maxillary pad
  • the height of the piece to the maxillary model is within the scan range.
  • the support structure is three columns that are triangularly distributed.
  • the device is a rigid material.
  • Such an oral upper and lower jaw relationship reconstruction assisting device can assist the operator to fix the upper and lower jaw models in a predetermined position relationship with the upper jaw pad and the mandibular pad on the base to obtain a maxillary pad which is fixedly connected and maintains a certain positional relationship.
  • the maxillary and mandibular models, the mandibular spacer and the mandibular model were scanned by maximal and maxillary, mandibular and mandibular shims removed from the base, and the maxillary shims were placed according to the positioning of the maxillary and mandibular shims.
  • the scan data of the mandibular pad is aligned with the predetermined position, and the maxillary scan data and the mandibular scan data of the predetermined jaw position are obtained, thereby realizing the spatial relationship alignment of the scan data of the upper and lower jaw models by two scans, thereby improving the efficiency and reducing the efficiency. Operational errors improve accuracy.
  • a method for reconstructing an oral upper and lower jaw relationship comprises: fixing the maxillary model to the maxillary pad, fixing the mandibular model to the mandibular pad, and maintaining a predetermined jaw relationship between the maxillary model and the mandibular model, wherein the maxillary pad and the mandibular pad are fixed on the base, the upper jaw pad and the lower jaw pad
  • the sides of the piece respectively have positioning marks; the fixedly connected maxillary pad and maxillary model, the fixedly connected mandibular pad and the jaw model are removed from the base, and the fixedly connected maxillary pad and maxillary model are scanned to obtain the maxillary pad including
  • the maxillary and maxillary models, the mandibular pad and the mandibular model which are fixedly connected and maintained in a positional relationship, can be obtained by scanning the maxillary and maxillary, mandibular and mandibular pads removed from the base, respectively.
  • the scan data of the maxillary pad and the mandibular pad are aligned to a predetermined position, and the maxillary scan data and the mandibular scan data of the predetermined jaw position are obtained, thereby achieving two scans.
  • Oral and maxillary scan data spatial relationship alignment improve efficiency while reducing operational errors and improving accuracy.
  • an oral upper and lower jaw relationship reconstruction apparatus comprising any of the above oral upper and lower jaw relationship reconstruction assisting devices for fixing a maxillary model to a maxillary pad and fixing the mandibular model to The mandibular pad, the maxillary model and the mandibular model maintain a predetermined jaw position, wherein the maxillary pad and the mandibular pad are fixed to the base; a data acquisition module for scanning the fixedly connected maxillary pad and maxillary model removed from the base Obtaining maxillary three-dimensional scan data including surface data of the maxillary pad and the maxillary model; scanning the fixedly connected mandibular pad and the mandibular model removed from the base to obtain three-dimensional scan data of the mandible including the surface data of the mandibular pad and the mandibular model; a data alignment module for aligning the maxillary pad in the maxillary three-dimensional scan data with a predetermined position of the maxillary pad according
  • Such a device is capable of obtaining a maxillary and maxillary model, a mandibular pad and a mandibular model that are fixedly connected and maintained in a positional relationship, by separately scanning the maxillary and maxillary, mandibular and mandibular shims removed from the base.
  • the scan data of the maxillary pad and the mandibular pad are aligned to a predetermined position, and the maxillary scan data and the mandibular scan data of the predetermined jaw position are obtained, thereby realizing the oral cavity by two scans.
  • the mandibular scan data spatial relationship is aligned, which improves efficiency while reducing operational errors and improving accuracy.
  • Figure 1 is a perspective view of an embodiment of an oral upper and lower jaw relationship reconstruction assisting device of the present invention.
  • FIG. 2 is a flow chart of one embodiment of a method for reconstructing an oral upper and lower jaw of the present invention.
  • FIG. 3 is a schematic view of one embodiment of an oral upper and lower jaw reconstruction device of the present invention.
  • the oral upper and lower jaw relationship reconstruction assisting device of the present invention is shown in the portion of FIG. Wherein, 1 is an upper jaw spacer, the upper jaw spacer 1 has a positioning mark 2; 3 is a lower jaw spacer, and the lower jaw spacer 3 has a positioning mark 4.
  • the maxillary and mandibular pads are used to secure the maxillary and mandibular models, respectively.
  • the maxillary model and the maxillary pad, the mandibular model, and the mandibular pad can be connected using a dental super-hard gypsum that is mixed to a semi-flowing state.
  • the maxillary model and the maxillary pad, the lower jaw are completed.
  • the model is fixed with the mandibular spacer.
  • the maxillary paddle and the mandibular pad can be positioned at predetermined positions, respectively, based on the positioning indicia.
  • 5 is the base for fixing the maxillary pad and lower jaw Gasket.
  • the base 5 includes an upper base 6, a lower base 7 and a support structure 8.
  • the upper base 6 can limit the height of the upper jaw pad placed on the lower side of the upper base, and the lower base 7 can be used to place the lower jaw spacer on the support structure support.
  • the base and the lower base keep the base shape fixed.
  • Such an oral upper and lower jaw relationship reconstruction assisting device can assist the operator to fix the oral upper and lower jaw model in a predetermined position relationship with the upper jaw pad and the mandibular pad on the base to obtain a fixed connection and maintain a certain positional relationship of the upper jaw.
  • the spacer and maxillary model, the mandibular pad and the mandibular model are scanned by maximal and maxillary, mandibular and mandibular shims removed from the base, respectively, and the maxillary pad is positioned according to the positioning of the maxillary and mandibular pads.
  • the scan data of the slice and the mandibular pad are aligned at a predetermined position, and the maxillary scan data and the mandibular scan data of the predetermined jaw position are obtained, thereby achieving spatial alignment of the scan data of the oral upper and lower jaw model by two scans, thereby improving efficiency and reducing operation. Errors improve accuracy.
  • the positioning marker 2 on the maxillary pad 1 is a positioning marker point having at least three positioning markers distributed over at least two sides of the maxillary pad.
  • each side of the maxillofacial spacer 1 includes 2 to 3 positioning markers.
  • the positioning marker points are evenly distributed on the front, left, and right sides of the upper jaw spacer, each side having three positioning marker points.
  • Such an oral upper and lower jaw relationship reconstruction auxiliary device has a plurality of positioning marker points on the upper jaw pad, and can determine the spatial position of the scanned maxillary pad data according to the position of the positioning marker point, thereby realizing accurate positioning of the maxillary scan data.
  • the positioning mark 2 on the mandibular pad 1 is a positioning mark point, and at least three positioning mark points are distributed on at least two sides of the mandibular pad.
  • each side of the mandibular spacer 1 includes 2 to 3 positioning markers.
  • the positioning marker points are evenly distributed on the front, left, and right sides of the mandibular spacer, each having three positioning marker points.
  • Such an oral upper and lower jaw relationship reconstruction auxiliary device has a plurality of positioning marker points on the mandibular pad, and can determine the spatial position of the scanned mandibular pad data according to the position of the positioning marker point, thereby realizing accurate positioning of the mandibular scan data.
  • the positioning marker points are hemispherical projections or hemispherical depressions trap. Such a marker point can determine the position of the center of the sphere through a hemispherical protrusion or a hemispherical depression, thereby achieving more accurate alignment of the scanned data, thereby improving the accuracy of spatial alignment of the scanning data of the upper and lower jaw models.
  • the downwardly facing side of the upper base has a first attachment structure for securely attaching the upper jaw spacer to the upper base.
  • the first connection structure may be a magnet that is capable of absorbing the upper jaw spacer to the upper base.
  • the maxillary spacer can have a corresponding connection structure and can be fixed to the upper base.
  • the upwardly facing side of the lower base has a second attachment structure 9 that securely attaches the lower jaw spacer to the lower base.
  • the second connecting structure may be a magnet capable of absorbing the lower jaw spacer to the lower base.
  • the mandibular spacer can have a corresponding connection structure and can be fixed to the lower base.
  • Such a device can fix the upper jaw pad and the lower jaw pad to the upper base and the lower base respectively, and can be easily disassembled and separated for convenient use.
  • the downwardly facing side of the upper base has a first stop structure that prevents displacement of the upper jaw pad secured to the upper base.
  • the first connecting structure may be a card slot, and the upper jaw pad may have a convex or edge shape corresponding to the card slot, and can be snapped to the card slot of the upper base.
  • the upwardly facing side of the lower base has a second stop structure 10 that prevents displacement of the lower jaw spacers that are secured to the lower base.
  • the second connecting structure may be a card slot, and the lower jaw pad may have a protrusion or shape corresponding to the card slot, and can be buckled to the card slot of the lower base.
  • Such a device can prevent lateral displacement of the upper jaw pad and the mandibular pad when being fixed to the base, better maintain the position of the maxillary pad and the mandibular pad, and prevent the maxillary pad and the maxillary model, the mandibular pad and the mandibular model.
  • the displacement occurs during the fixation process, thereby reducing the error and improving the accuracy of the spatial relationship of the scanning data of the upper and lower jaw models.
  • the first stop structure is the same as the second limit structure, and the upper jaw spacer is the same as the lower jaw spacer.
  • Such a device can prevent operational errors caused by the mixing of the upper and lower jaw spacers during operation.
  • the maxillary pad and the mandibular pad can be different.
  • Such a device can automatically mark the acquired scan data as the maxillary three-dimensional scan data or the mandibular three-dimensional scan data according to the characteristics of the maxillary and mandibular spacers, eliminating the need for human identification. operating.
  • the top of the upper base 6 has a retention structure 11 that is capable of securing the position of the upper base 6.
  • a retention structure 11 can prevent the super-hard gypsum between the fixed maxillary pad and the maxillary model, the mandibular pad and the mandibular model from expanding during the solidification process, resulting in an error caused by displacement of the upper base, thereby better ensuring the oral cavity.
  • the accuracy of spatial relationship mapping of the mandibular model scan data.
  • the top of the support structure 8 is a threaded structure
  • the retention structure 11 is capable of securing the position of the upper base by a threaded structure corresponding to the support structure 8.
  • the predetermined distance between the upper base and the lower base is 8-10 cm, and in one embodiment, the predetermined distance between the upper base and the lower base is 9 cm. Taking into account the oral upper and lower jaw height of most people and the scanning range of the dental model scanner, such a predetermined distance can meet the needs of most dental model scanners, improve the universality of the device, and facilitate the popularization and application.
  • the middle portion of the support structure 8 has a midsection marker 12.
  • such a device can ensure that the height of the fixedly connected maxillary and maxillary models, the fixedly connected mandibular spacer and the mandibular model are within the scanning range, thereby making it easier to obtain the maxillary pad.
  • the maxillary three-dimensional scan data of the surface data of the maxillary model and the mandibular three-dimensional scan data including the surface data of the mandibular spacer and the mandibular model.
  • the support structure 8 is three uprights that are triangularly distributed. Such a device facilitates the removal of the maxillary pad and the mandibular pad from the gap between the posts while maintaining stability.
  • the device is a rigid material. Such a device is less prone to deformation, thereby eliminating errors due to deformation of the device.
  • each component is designed using Solidworks 2014 software and formed using a high precision 5-axis CNC machine.
  • a high precision 5-axis CNC machine is more precise, and it is convenient to improve the accuracy of spatial relationship alignment of the scan data of the upper and lower jaw models.
  • FIG. 1 A flow chart of one embodiment of the method for reconstructing the oral and maxillary relationship of the present invention is shown in FIG.
  • the upper and lower jaw relationship reconstruction device is used to fix the maxillary model to the maxillary pad, the mandibular model is fixed to the mandibular pad, and the maxillary model and the mandibular model maintain a predetermined jaw position, the maxillary pad
  • the sheet and the mandibular pad are fixed to the base.
  • the material for fixing the maxillary and maxillary models, the mandibular pad and the mandibular model may be selected from super anhydrite.
  • step 202 the fixedly connected maxillary pad and maxillary model, the fixedly connected mandibular pad and the jaw model are removed from the base.
  • the fixedly connected maxillary and maxillary models, the fixedly connected mandibular spacer and the jaw model are removed from the base.
  • step 203 the predetermined position when the upper jaw spacer and the lower jaw spacer are fixed to the base is known, and the upper jaw spacer and the lower jaw spacer scan data can be aligned according to the position of the positioning marker.
  • the positioning marker as the alignment reference point
  • the upper jaw spacer in the maxillary three-dimensional scan data is aligned with the predetermined position of the upper jaw spacer according to the positioning marker of the maxillary spacer
  • the mandibular spacer in the three-dimensional scan data of the lower jaw is determined according to the positioning marker of the mandibular spacer. Aligning with the predetermined position of the mandibular pad to obtain three-dimensional scan data of the oral upper and lower jaw model of the predetermined jaw position.
  • the maxillary and maxillary models, the mandibular pad and the mandibular model which are fixedly connected and maintained in a positional relationship, can be obtained by scanning the maxillary and maxillary, mandibular and mandibular pads removed from the base, respectively.
  • the scan data of the maxillary pad and the mandibular pad are aligned to a predetermined position, and the maxillary scan data and the mandibular scan data of the predetermined jaw position are obtained, thereby achieving two scans.
  • Oral and maxillary scan data spatial relationship alignment improve efficiency while reducing The operation error improves the accuracy.
  • the specific operational steps of securing the oral upper and lower jaw model to the oral maxillary relationship reconstruction assisting device include:
  • the oral upper and lower jaw model maintaining the predetermined jaw position can be fixed to the upper jaw pad and the lower jaw pad attached to the base, and the fixedly connected maxillary pad and the maxillary model, the mandibular pad and the mandibular model can be obtained.
  • the spatial relationship of the scanning data of the upper and lower jaw models can be realized according to the position of the positioning marks on the upper jaw pad and the mandibular pad.
  • an RPS (reference point system) alignment algorithm is used to align the maxillary three-dimensional scan data and the mandibular three-dimensional scan data according to the position of the positioning identifier.
  • the alignment is accomplished by performing an alignment reference point command, the reference point being the positioning marker of the upper jaw spacer, the side of the lower jaw spacer.
  • FIG. 301 is the above-mentioned oral upper and lower jaw reconstruction auxiliary device
  • the upper jaw model is fixed on the maxillary pad
  • the mandibular model is fixed on the mandibular pad
  • the maxillary model and the mandibular model maintain a predetermined jaw position
  • the maxillary pad and the mandibular pad The piece is fixed to the base of the oral upper and lower jaw reconstruction assisting device
  • 302 is a data acquisition module
  • the fixed maxillary pad and upper jaw are fixed after the material for fixing the maxillary and maxillary model, the mandibular pad and the mandibular model is solidified.
  • the model, the fixedly connected mandibular spacer and the mandibular model are removed from the base, and the maxillary 3D scan data including the maxillary spacer and the maxillary model surface data is obtained by scanning the fixedly connected maxillary spacer and the maxillary model; Slice and jaw model The mandibular three-dimensional scan data including the surface data of the mandibular spacer and the mandibular model was included.
  • 303 is a data alignment module, which can align the upper jaw of the maxillary three-dimensional scan data of the data acquisition module 302 with the predetermined position of the upper jaw according to the predetermined position of the known positioning identifier, and align the mandibular spacer of the mandibular three-dimensional scan data with The predetermined position of the mandibular pad, thereby determining the position of the mandibular model in the maxillary three-dimensional scan data and the mandibular three-dimensional scan data, achieves spatial alignment of the oral and maxillary scan data.
  • Such a device is capable of obtaining a maxillary and maxillary model, a mandibular pad and a mandibular model that are fixedly connected and maintained in a positional relationship, by separately scanning the maxillary and maxillary, mandibular and mandibular shims removed from the base.
  • the scan data of the maxillary pad and the mandibular pad are positioned at a predetermined position, and the maxillary scan data and the mandibular scan data of the predetermined jaw position are obtained, thereby realizing the oral cavity by two scans.
  • the mandibular model scans the data spatial relationship alignment, improving efficiency while reducing operational errors and improving accuracy.

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  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Physics & Mathematics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
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  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne un dispositif d'aide de rétablissement de relation maxillo-mandibulaire oral, un procédé et un dispositif de rétablissement, se rapportant au domaine de la stomatologie. Le dispositif d'aide de rétablissement de relation maxillo-mandibulaire oral comprend : un joint d'étanchéité de maxillaire (1) utilisé pour fixer un modèle de maxillaire, des repères de positionnement (2) étant prévus sur la surface latérale du joint d'étanchéité de maxillaire (1) et utilisés pour positionner le joint d'étanchéité de maxillaire (1) ; un joint d'étanchéité de mandibule (3) utilisé pour fixer un modèle de mandibule, des repères de positionnement (4) étant prévus sur la surface latérale du joint d'étanchéité de mandibule (3) et utilisés pour positionner le joint d'étanchéité de mandibule (3) ; une base (5) comprenant une base supérieure (6) utilisée pour limiter la hauteur du joint d'étanchéité de maxillaire (1) et une base inférieure (7) utilisée pour placer le joint d'étanchéité de mandibule (3) ; et une structure de support (8) utilisée pour fixer la base supérieure (6) et la base inférieure (7). Un tel dispositif d'aide de rétablissement de relation maxillo-mandibulaire oral permet à un opérateur d'obtenir un joint d'étanchéité de maxillaire (1) et un modèle de maxillaire, ainsi qu'un joint d'étanchéité de mandibule (3) et un modèle de mandibule, qui sont reliés à demeure et maintiennent une certaine relation de position, et d'obtenir des données de balayage de maxillaire et des données de balayage de mandibule selon une relation maxillo-mandibulaire prédéterminée à partir de données de balayage au moyen des repères de positionnement (2, 4), en réduisant ainsi le nombre de balayages et améliorant l'efficacité et la précision.
PCT/CN2015/092409 2015-10-21 2015-10-21 Dispositif d'aide de rétablissement de relation maxillo-mandibulaire oral, procédé et dispositif de rétablissement WO2017066935A1 (fr)

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CN201580002570.7A CN107427344B (zh) 2015-10-21 2015-10-21 口腔上下颌关系重建辅助装置、重建方法和装置
PCT/CN2015/092409 WO2017066935A1 (fr) 2015-10-21 2015-10-21 Dispositif d'aide de rétablissement de relation maxillo-mandibulaire oral, procédé et dispositif de rétablissement

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PCT/CN2015/092409 WO2017066935A1 (fr) 2015-10-21 2015-10-21 Dispositif d'aide de rétablissement de relation maxillo-mandibulaire oral, procédé et dispositif de rétablissement

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CN109191575B (zh) * 2018-08-01 2023-06-20 北京大学口腔医学院 一种基于下颌运动轨迹分析的颌位关系数字重建方法
CN110101473B (zh) * 2019-06-21 2024-05-17 云南增材佳唯科技有限公司 一种3d打印牙架
CN111150507B (zh) * 2020-01-19 2021-09-17 四川大学 一种牙科咬合重建修复中转移咬合关系和形态设计的方法
CN113143523B (zh) * 2021-04-21 2022-04-26 北京大学口腔医学院 一种口内一次性哥特式弓描记仪及正中关系位的确定方法

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WO2008040400A1 (fr) * 2006-10-07 2008-04-10 3D Lab Service Gmbh Procédé de réalisation d'un élément prothétique en médecine dentaire
WO2011021099A2 (fr) * 2009-08-21 2011-02-24 Align Technology, Inc. Modélisation dentaire numérique
WO2011103876A1 (fr) * 2010-02-25 2011-09-01 3Shape A/S Articulateur virtuel dynamique
US20110318703A1 (en) * 2010-06-25 2011-12-29 Takeshi Moriyama Denture grinding machine

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