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WO2024005437A1 - Ébauche pour la fabrication d'une prothèse dentaire - Google Patents

Ébauche pour la fabrication d'une prothèse dentaire Download PDF

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Publication number
WO2024005437A1
WO2024005437A1 PCT/KR2023/008581 KR2023008581W WO2024005437A1 WO 2024005437 A1 WO2024005437 A1 WO 2024005437A1 KR 2023008581 W KR2023008581 W KR 2023008581W WO 2024005437 A1 WO2024005437 A1 WO 2024005437A1
Authority
WO
WIPO (PCT)
Prior art keywords
material portion
blank
jig
contact
dental prosthesis
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2023/008581
Other languages
English (en)
Korean (ko)
Inventor
임형봉
김준형
고환순
오진우
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HASS CO Ltd
Original Assignee
HASS CO Ltd
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 HASS CO Ltd filed Critical HASS CO Ltd
Publication of WO2024005437A1 publication Critical patent/WO2024005437A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0022—Blanks or green, unfinished dental restoration parts
    • 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
    • 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
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0004—Computer-assisted sizing or machining of dental prostheses

Definitions

  • the present invention relates to a blank used to manufacture a dental prosthesis.
  • it is tightly adhered to the jig of the processing device to maintain processing precision while preventing cracks or damage from tool stress, vibration, or impact generated during the processing process. It relates to a blank for manufacturing dental prosthesis configured to prevent this.
  • Dental prosthetics refers to all procedures that remove part or all of a tooth and then artificially create a tooth that is most similar to a natural tooth and attach or cover it.
  • Dental prosthesis reproduces the shape of the patient's teeth in an impression and pours plaster on it to regenerate the tooth shape, or acquires the shape of the mouth and teeth through an intraoral scanning process and then creates the desired shape through a CAD design process based on this.
  • Teeth can be designed on the screen and processed on an automated CAD/CAM processing device.
  • the blank used to manufacture a dental prosthesis is pressurized by a machining tool (bit) that rotates and moves at high speed, it is important to be firmly seated in the jig of the machining device. If the blank flows due to the force generated by the processing tool, there is a problem in that it cannot be processed into a prosthesis of the set shape.
  • bit machining tool
  • Existing blanks especially large-area blanks designed to produce multiple prosthetics from a single blank, have a circular or oval shape when viewed from a plane, so they are placed in surface contact with the jig of the processing device. That is, the existing blank has a configuration in which the entire upper edge is in surface contact with the bottom of the upper jig made of a circular frame, and the entire bottom edge is in surface contact with the upper surface of the lower jig made of a circular frame.
  • the existing blank has a structure in which the entire top edge and the entire bottom edge are in surface contact with a jig having a circular frame, so it does not flow from the high-speed rotational force or vertical machining pressure generated by the machining tool. It can be placed in a location.
  • the existing blank has a configuration in which the entire top edge and the entire bottom edge are in direct surface contact with the upper jig and lower jig, respectively, so there is a problem in that the machining area by the machining tool is reduced, and in particular, the moment of machining tool There is a problem of serious damage due to cracks occurring due to excessive rotational force and pressure.
  • the present applicant proposed the present invention in order to solve the above problems, and related prior art documents include Korean Patent No. 10-1997032 titled 'Processing table assembly for processing dental restorations and dental restorations using the same'. There is a ‘processing method’.
  • the present invention is intended to solve the above problems, and provides a blank for manufacturing dental prosthesis configured to prevent flow due to external force even when the machining area of the material part directly in contact with the machining tool is not in contact with the jig of the machining device.
  • the purpose is to provide
  • the purpose of the present invention is to provide a blank for manufacturing dental prosthesis that is configured to minimize dead space by manufacturing the material part in direct contact with the processing tool in a polygonal shape and to increase production efficiency of dental prosthesis.
  • the purpose of the present invention is to provide a blank for manufacturing a dental prosthesis that can prevent fracture even when exposed to repeated clamping on a processing device during a milling process for a prosthesis.
  • the present invention provides a material portion that provides a predetermined processing area in direct contact with the processing tool of the processing device and forms a plurality of side surfaces; A seating groove formed on a side of the material portion; It may include a guard portion that is mounted on the side of the material portion using the seating groove and is in direct contact with a jig having a circular frame shape of the processing device.
  • the seating groove may be formed on all of the plurality of side surfaces formed by the material part, or may be formed on some of the side surfaces of the plurality of sides formed by the material part.
  • guard portion may be provided in plural numbers on the material portion at predetermined intervals along the circumferential direction of the material portion.
  • a space may be formed between the side surface of the material part and the jig.
  • the guard portion includes an inner member inserted into the seating groove while having a shape corresponding to the inner space formed by the seating groove; and an outer member that is integrally connected to the inner member and is disposed to protrude outward from the side of the material portion and makes surface contact with the jig of the processing device.
  • the seating groove, the side of the material portion on which the seating groove is formed and the guard portion is mounted, and the guard portion may have a curvature corresponding to the curvature of the jig having a circular frame shape.
  • the outer member includes a first contact surface extending upward or downward from one side of the inner member and making surface contact with a side surface of the material portion; and a second contact surface extending horizontally from the top or bottom of the first contact surface and making surface contact with the bottom or top of the jig having a circular frame shape.
  • the guard portion may have a thickness smaller than the thickness of the material portion.
  • the inner circumferential surface of the jig may be in surface contact with the side of the material part that is not in contact with the first contact surface.
  • the blank for manufacturing dental prosthesis according to the present invention provides a guard part that can stably fix the material part on the jig even when the processing area (upper surface) of the material part is not in contact with the jig of the processing device, so the processing range of the processing tool is limited.
  • the entire processing area of the material can be utilized, and the production efficiency of dental prosthesis can be increased by minimizing the dead space of the material.
  • the blank for manufacturing dental prosthesis according to the present invention provides a structure in which the guard part is inserted and mounted in a seating groove formed on the side of the material part, thereby increasing the contact area between the material part and the guard part, thereby preventing the guard part from being separated due to external force. can be further prevented.
  • the blank for manufacturing dental prosthesis according to the present invention provides a structure that disperses the instantaneous stress generated at the contact area when the processing tool first contacts the processing area of the material part to the outside, so it is used in the processing tool or jig. Damage or cracking of material parts can be prevented in advance by the generated pressure.
  • the blank for manufacturing a dental prosthesis according to the present invention has a guard portion, so that the milling process for the prosthesis can be repeatedly performed by clamping the relevant area, thereby preventing fracture due to repetitive clamping.
  • FIG. 1 is a perspective view of a blank according to an embodiment of the present invention.
  • Figure 2 is a top view of the blank shown in Figure 1.
  • Figure 3 is a side view of the blank shown in Figure 1.
  • Figure 4 is a perspective view showing a state in which the guard part is separated from the material part of the blank shown in Figure 1.
  • Figure 5 is a plan view of a material portion according to an embodiment of the present invention.
  • Figure 6 is a perspective view of the guard portion according to an embodiment of the present invention.
  • Figure 7 is a side view showing a jig in the form of a circular frame mounted on the guard part of a blank according to an embodiment of the present invention.
  • Figure 8 is a perspective view of a blank according to another embodiment of the present invention.
  • Figure 9 is a side view of the blank shown in Figure 8.
  • Figure 10 is a perspective view showing a state in which the guard part is separated from the material part of the blank according to another embodiment of the present invention.
  • Figure 11 is a plan view of a material portion according to another embodiment of the present invention.
  • FIGS. 1 to 11 a blank for manufacturing a dental prosthesis according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 11.
  • detailed descriptions of related well-known functions or configurations are omitted in order to make the gist of the invention unambiguous.
  • Figure 1 is a perspective view of a blank according to an embodiment of the present invention
  • Figure 2 is a top view of the blank shown in Figure 1.
  • Figure 3 is a side view of the blank shown in Figure 1
  • Figure 4 is a perspective view showing a state in which the guard part is separated from the material part of the blank shown in Figure 1
  • Figure 5 is a plan view of the material part according to an embodiment of the present invention.
  • Figure 6 is a perspective view of the guard part according to an embodiment of the present invention
  • Figure 7 is a side view showing a jig in the form of a circular frame seated on the guard part of the blank according to an embodiment of the present invention
  • Figure 8 is a perspective view of a blank according to another embodiment of the present invention
  • Figure 9 is a side view of the blank shown in Figure 8
  • Figure 10 shows a state in which the guard portion is separated from the material portion of the blank according to another embodiment of the present invention.
  • Figure 11 is a plan view of a material portion according to another embodiment of the present invention.
  • the blank for manufacturing dental prosthesis according to the present invention prevents the material part used to manufacture the prosthesis from flowing due to external force even when the material part is not in contact with the jig of the processing device, and in addition, it prevents the material part from moving due to high-speed rotational force or vertical force generated from the processing tool. It is characterized by being constructed so that cracks do not occur in the material part due to directional pressure.
  • the blank 100 for manufacturing a dental prosthesis may include a material portion 200, a seating groove 300, and a guard portion 400, as shown in FIGS. 1 to 3.
  • the material portion 200 can be placed on a jig (J1, J2, see FIG. 7) in the form of a circular frame constituting the artificial tooth processing device.
  • the processing device may be driven based on CAD (computer-aided design)/CAM (computer-aided manufacturing) data, and may perform grinding, milling, and cutting using processing tools. ) method, etc. can be used to process the material portion 200.
  • CAD computer-aided design
  • CAM computer-aided manufacturing
  • the material portion 200 provides a predetermined processing area that is in direct contact with the processing tool of the processing device.
  • the material portion 200 is made of glass or glass-ceramic, polymer infiltrated glass, composite resin or hybrid material, or unsintered ceramic. It may be composed of one or more of the following materials: or a partially sintered or a densely-sintered ceramic, metal, or metal alloy. In addition, the material portion 200 has characteristics such as high strength, thermal stability, and high corrosion resistance, and can be used alone in white or colored, or in a mixture of white and colored.
  • the material portion 200 may have a polygonal shape with a plurality of side surfaces 210 when viewed from a plane.
  • the material portion 200 may be manufactured in a polygonal shape such as a hexagon, octagon, dodecagon, or hexagon.
  • the material portion 200 is shown in the description and drawings as having a substantially hexagonal planar shape, and accordingly, there are substantially six sides around it (in the above and below descriptions, these are The surface of the blank including the 'side' is defined as the 'side', 210) is formed. Additionally, the vertex where two of the six sides 210 meet each other may be rounded to have a curvature corresponding to the curvature of the jigs J1 and J2 having a circular frame shape.
  • the vertex portion of the material portion 200 which has a hexagonal planar shape, is rounded to have a curvature corresponding to the curvature of the jigs J1 and J2, as shown in FIG. 5, so that the side surface has a curved shape. (210') can be formed, and this side surface (210') can be said to be the vertex of the material portion 200, which initially has a hexagonal planar shape.
  • a guard portion 400 which will be described later, may be mounted on the side 210' of the material portion 200, which is rounded and has a curved shape.
  • the side 210' of the material portion 200 having a curved shape is shown in the drawing as being formed in plural numbers at regular intervals along the circumferential direction of the material portion 200.
  • the seating groove 300 may be formed on all of the plurality of side surfaces 210 formed by the material portion 200.
  • the seating groove 300 is formed along the circumferential direction of the material portion 200, and as shown in FIG. 5, may have a circular curvature when viewed from a plane.
  • the seating groove 300 having the above configuration provides a space into which the inner member 410 of the guard portion 400, which will be described later, can be inserted.
  • the guard portion 400 is a component that is in direct contact with a jig (ji, J2) having a circular frame shape, and the material portion 200 is damaged by external force while the material portion 200 is processed by a machining tool. It serves to prevent flow.
  • the guard portion 400 serves to protect the material portion 200 from stress and impact transmitted from processing equipment or processing tools. In particular, it is in direct contact with the jig (ji, J2) having a circular frame shape. It serves to support the material portion 200 on the jigs (J1, J2). Additionally, the guard portion 400 may be made of a material different from that of the material portion 200. For example, it may be made of plastic or metal.
  • a plurality of guard parts 400 may be provided on the material part 200 at predetermined intervals along the circumferential direction of the material part 200.
  • the guard portion 400 may include an inner member 410 and an outer member 420, as shown in FIG. 6 .
  • the inner member 410 is a component inserted into the seating groove 410 formed in the material portion 200.
  • the inner member 410 has a shape corresponding to the shape of the seating groove 300 formed on the side 210' having a curved shape among the plurality of sides 210 formed by the material portion 200. It can be inserted into the seating groove 300. At this time, the inner member 410 may be formed to have a curvature corresponding to the curvature of the seating groove 300 or the curvature of the side 210' having the curved shape.
  • the outer member 420 can be said to be a component that is in direct contact with the jigs (J1, J2) of the processing equipment, and is connected to the inner member 410 as a whole and is located on the side 210 of the material portion 200. It may protrude outward and be exposed to the outside.
  • the outer member 420 may be formed to have a curvature corresponding to the curvature of the seating groove 300.
  • the outer member 420 may include a first contact surface 421 and a second contact surface 422, as shown in FIG. 6.
  • the first contact surface 421 extends upward or downward from one side of the inner member 410 and may be in surface contact with the side 210 of the material portion 200.
  • the second contact surface 422 extends horizontally from the top or bottom of the first contact surface 421, and may be in surface contact with the bottom or top surface of the jigs J1 and J2 having a circular frame shape.
  • the guard portion 400 has a thickness smaller than the thickness of the material portion 200. That is, as shown in FIGS. 3 and 7, the height of the outer member 420 constituting the guard portion 400 can be said to be smaller than the thickness of the material portion 200.
  • the inner peripheral surfaces of the jigs J1 and J2 may be in surface contact with the side surface of the material portion 200.
  • the inner peripheral surface of the jig (J1, J2) may be in surface contact with the side 210 of the material portion 200 exposed in the space S shown in FIG. 7, and the material portion 200 ) can be said to be a surface area that is not in contact with the first contact surface 421.
  • the outer member 420 of the guard part 400 constituting the blank 100 is in surface contact with the bottom or upper surface of the jig (J1, J2), and the side 210 of the material part 200 is in surface contact with the jig (J1). , Since it has a configuration that makes surface contact with the inner peripheral surface of J2), the flow of the material portion 200 due to external force can be suppressed.
  • the processing area (upper surface) of the material portion 200 is configured to be in non-contact with the jigs J1 and J2, the processing area (upper surface) of the material portion 200 can be fully utilized to manufacture dental prosthesis. Thus, waste of the material unit 200 can be reduced.
  • the material portion 200 has a polygonal shape forming a plurality of side surfaces 210, there is a separation space between the side surface of the material portion 210 and the inner peripheral surface of the jigs (J1 and J2) when viewed in a plan view. This is formed. Therefore, when the machining tool first contacts the machining area of the material portion 200, the instantaneous stress generated at the contact area may be distributed to the outside through the separation space, resulting in cracks occurring in the material portion 200. This phenomenon can be prevented.
  • the guard portion 400 may be fixedly mounted on the side 210' of the material portion 200 using a known bonding material, or may be fixedly mounted on the side 210' of the material portion 200 using a fastening means such as a screw. It may also be mounted on (210').
  • the blank 100' When compared to the blank 100 according to an embodiment of the present invention, the blank 100' according to another embodiment of the present invention has a formation position of the seating groove 300 formed on the side of the material portion 200. It can be said that they are all different.
  • the seating groove 300 may not be formed on all of the plurality of side surfaces 210 formed by the material portion 200, but may be formed only on some of the side surfaces 210'. For example, as shown in FIG. 11, among the plurality of side surfaces 210 formed by the material portion 200, only the side surface 210' that is rounded and has a curved shape may be formed.
  • the reason for forming the seating groove 300 only on some of the side surfaces 210' out of the plurality of side surfaces 210 formed by the material part 200 is to improve the productivity of the blank itself and to improve the productivity of the guard part 400. ) to the material portion 200 to facilitate the process, and also to prevent the guard portion 400 mounted on the material portion 200 from moving along the circumferential direction of the material portion 200.
  • the guard part 400 mounted on the side 210' having a curved shape among the plurality of side surfaces 210 formed by the material part 200 is the material part 200 in which the seating groove 300 is not formed.
  • the side portion may be blocked by the side surface 210 to prevent flow in the circumferential direction of the material portion 200.
  • the guard portion 400 since the guard portion 400 is firmly mounted on the side 210' of the material portion 200, it does not move away from the material portion 200 due to the pressing force of the jigs J1 and J2.
  • the present invention can be applied and sold in the medical industry.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Dental Prosthetics (AREA)

Abstract

La présente invention comprend : une partie de matériau qui fournit une zone d'usinage prédéterminée venant en contact direct avec un outil d'usinage d'un appareil d'usinage, et qui forme une pluralité de surfaces latérales ; des rainures de chargement formées sur les surfaces latérales de la partie de matériau ; et des parties de protection qui sont montées sur les surfaces latérales de la partie de matériau à l'aide des rainures de chargement, et qui viennent en contact direct avec un gabarit en forme de cadre circulaire de l'appareil d'usinage.
PCT/KR2023/008581 2022-06-29 2023-06-21 Ébauche pour la fabrication d'une prothèse dentaire Ceased WO2024005437A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220079838A KR102754580B1 (ko) 2022-06-29 2022-06-29 치아 보철물 제작용 블랭크
KR10-2022-0079838 2022-06-29

Publications (1)

Publication Number Publication Date
WO2024005437A1 true WO2024005437A1 (fr) 2024-01-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2023/008581 Ceased WO2024005437A1 (fr) 2022-06-29 2023-06-21 Ébauche pour la fabrication d'une prothèse dentaire

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KR (1) KR102754580B1 (fr)
WO (1) WO2024005437A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024186021A1 (fr) * 2023-03-08 2024-09-12 주식회사 하스 Ébauche pour la fabrication d'une prothèse dentaire

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101314192B1 (ko) * 2013-05-06 2013-10-02 (주) 삼정디엠지코리아 다축 인공치아 가공장치용 고정지그
KR20170129835A (ko) * 2015-03-19 2017-11-27 쿠라레 노리타케 덴탈 가부시키가이샤 피가공 유닛
KR20170129836A (ko) * 2015-03-19 2017-11-27 쿠라레 노리타케 덴탈 가부시키가이샤 피가공 유닛 및 그 제조 방법
JP2018050897A (ja) * 2016-09-28 2018-04-05 アダマンド株式会社 歯科補綴用セラミックス体
KR20220023651A (ko) * 2020-08-21 2022-03-02 주식회사 하스 치과용 블랭크

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101314192B1 (ko) * 2013-05-06 2013-10-02 (주) 삼정디엠지코리아 다축 인공치아 가공장치용 고정지그
KR20170129835A (ko) * 2015-03-19 2017-11-27 쿠라레 노리타케 덴탈 가부시키가이샤 피가공 유닛
KR20170129836A (ko) * 2015-03-19 2017-11-27 쿠라레 노리타케 덴탈 가부시키가이샤 피가공 유닛 및 그 제조 방법
JP2018050897A (ja) * 2016-09-28 2018-04-05 アダマンド株式会社 歯科補綴用セラミックス体
KR20220023651A (ko) * 2020-08-21 2022-03-02 주식회사 하스 치과용 블랭크

Also Published As

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KR20240002539A (ko) 2024-01-05
KR102754580B1 (ko) 2025-01-14

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