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WO2023085474A1 - Procédé de fabrication d'implant de surface osseuse dentaire personnalisé individuel en 3d - Google Patents

Procédé de fabrication d'implant de surface osseuse dentaire personnalisé individuel en 3d Download PDF

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Publication number
WO2023085474A1
WO2023085474A1 PCT/KR2021/016611 KR2021016611W WO2023085474A1 WO 2023085474 A1 WO2023085474 A1 WO 2023085474A1 KR 2021016611 W KR2021016611 W KR 2021016611W WO 2023085474 A1 WO2023085474 A1 WO 2023085474A1
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WIPO (PCT)
Prior art keywords
bone surface
implant
surface implant
patient
manufacturing
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Ceased
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PCT/KR2021/016611
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English (en)
Korean (ko)
Inventor
정철웅
박홍주
조진용
이재곤
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KUWOTECH CO Ltd
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KUWOTECH CO Ltd
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Publication of WO2023085474A1 publication Critical patent/WO2023085474A1/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
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0006—Production methods
    • A61C13/0019—Production methods using three dimensional printing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0012—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61C13/00—Dental prostheses; Making same
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    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0004—Computer-assisted sizing or machining of dental prostheses
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    • A61C8/0093—Features of implants not otherwise provided for
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30988—Other joints not covered by any of the groups A61F2/32 - A61F2/4425
    • A61F2/3099—Other joints not covered by any of the groups A61F2/32 - A61F2/4425 for temporo-mandibular [TM, TMJ] joints
    • 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
    • B33Y70/00—Materials specially adapted 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
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/30—Joints
    • A61F2/3094—Designing or manufacturing processes
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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Definitions

  • the present invention relates to a method for manufacturing a 3D personalized dental bone surface implant, and more specifically, to a patient with insufficient jawbone (jawbone) and soft tissue, using 3D printing technology to facilitate implantation without additional surgery such as bone grafting
  • the present invention relates to a method for manufacturing a 3D personalized dental bone surface implant that can be quickly manufactured and prepared for future steps for restoring teeth.
  • An implant which is an artificial tooth, means a substitute for restoring original human tissue when it is lost, but in dentistry, it refers to implanting an artificial tooth.
  • the surrounding teeth and bones are damaged over time, but implants do not damage the surrounding dental tissue, and have the same function and shape as natural teeth, but do not cause cavities, so they can be used semi-permanently.
  • the dental implant is composed of a fixture, an abutment, a screw, and a crown, the fixture is placed in the alveolar bone, and the abutment is installed on top of the fixture via a screw. It is fastened, and the prosthesis is finally combined on the abutment to complete the tooth.
  • the existing implant as described above had a limitation in implanting the existing implant when the width or height of the bone was very low due to the resorption of the alveolar bone, and the existing implant inserted into the bone had a problem in that the healing period of osseointegration took a long time. .
  • the method for manufacturing a 3D personalized dental bone surface implant according to an embodiment of the present invention was invented to solve the above-mentioned problems, using CAD and 3D printing technology for patients with insufficient jawbone (jaw bone) and soft tissue.
  • An object of the present invention is to provide a method for manufacturing a 3D personalized dental bone surface implant that can easily and quickly design and manufacture implants and prepare for subsequent steps to restore teeth in advance.
  • Another object is to provide a method for manufacturing a 3D personalized dental bone surface implant in which the healing period of osseointegration is significantly reduced compared to conventional implants.
  • Another object is to provide an implant manufacturing method that can be applied not only to dental implants but also to maxillofacial reconstruction including orbits.
  • the method of manufacturing a 3D personalized dental bone surface implant includes the steps of taking a CT scan of a patient's missing jawbone and oral condition, and using the photographed image to obtain a 3D model of the patient's jawbone. extracting, setting the tooth arrangement and abutment position in the edentulous area, designing a bone surface implant such that the abutment is integrally provided and in contact with the bone surface of the edentulous area of the patient, and the designed bone surface It may include outputting the implant with a 3D printer.
  • the image in the step of taking a CT scan of the patient's missing jaw bone and oral condition, can be taken in the occluded state of the teeth in the case of partially edentulous patients, and in the case of completely edentulous patients, the images can be taken in a condylar stable position.
  • any one of ASTM F136, ASTM F67, ASTM F75, and ASTM F1537 metal alloys or ultra-high molecular weight polyethylene may be used.
  • the bone surface implant is formed with a plurality of holes for fixing the bone surface implant to the jaw bone in a state of being in contact with the surface of the edentulous region, and the bone surface implant is inserted into the jawbone through a fixing screw inserted into the hole. can be fixed on
  • a prosthesis considering the arrangement of teeth for each patient may be fixed to the abutment of the bone surface implant.
  • the present invention has the following excellent effects.
  • implants can be easily and quickly manufactured using CAD and 3D printing technology for patients with insufficient jawbone (jawbone) and soft tissue, and subsequent steps to restore teeth can be prepared in advance.
  • the treatment period is significantly shortened compared to conventional implants, and it can be applied not only to dental implants but also to maxillofacial reconstruction including orbits without invasive procedures such as bone grafting for conventional root-type implant implantation.
  • FIG. 1 is an overall process diagram of a method for manufacturing a 3D personalized dental bone surface implant according to an embodiment of the present invention.
  • FIG 2 is an image showing the structures of maxillary and mandibular bone surface implants designed according to an embodiment of the present invention.
  • FIG. 3 is a state diagram in which a prosthesis is coupled to the bone surface implant shown in FIG. 2 .
  • FIG. 4 is an image of a state in which a 3D personalized dental bone surface implant according to an embodiment of the present invention has been operated.
  • 5 to 8 are images in which a 3D personalized dental bone surface implant according to an embodiment of the present invention is operated according to a defect region.
  • the best form for carrying out the present invention comprises the steps of taking a CT scan of the patient's missing jaw bone and oral condition; Extracting a 3D model of the patient's jaw using the photographed image; Setting the position of the tooth arrangement and abutment in the edentulous area; designing a bone surface implant such that the abutment is integrally provided and contacts the bone surface of the edentulous part of the patient; and outputting the designed bone surface implant with a 3D printer.
  • FIG. 1 is an overall process diagram of a 3D personalized dental bone surface implant manufacturing method according to an embodiment of the present invention
  • FIG. 2 is a structure of maxillary and mandibular bone surface implants designed according to an embodiment of the present invention.
  • 3 is a state diagram in which a prosthesis is coupled to the bone surface implant shown in FIG. 2
  • FIG. 4 is an image of a state in which a 3D personalized dental bone surface implant according to an embodiment of the present invention is operated.
  • the method for manufacturing a 3D personalized dental bone surface implant includes a step (S100) of taking a CT scan of the patient's missing jaw bone and oral condition.
  • step S100 of CT imaging the patient's missing jawbone and oral condition the imaging method is different according to the patient's oral condition.
  • the step of taking a CT scan of the patient's missing jaw bone and oral condition is saved in the form of a DICOM file using CBCT software.
  • a 3D personalized dental bone surface implant according to an embodiment of the present invention, after the above-described CT imaging of the patient's missing jawbone and oral condition (S100), a 3D model of the patient's jawbone is obtained using the photographed image. It includes the step of extracting (S200).
  • the method for manufacturing a 3D personalized dental bone surface implant includes setting the tooth arrangement and the position of the abutment in the edentulous area (S300).
  • the position is set considering the arranged teeth and edentulous condition.
  • the method for manufacturing a 3D personalized dental bone surface implant includes the step of designing the bone surface implant such that the abutment is integrally provided and is in contact with the bone surface of the edentulous area of the patient (S400) do.
  • the bone surface implants 110 and 120 are integrally provided with the abutments 112 and 122 for fixing the prostheses 113 and 123 as described above, and the bone surface implants ( A plurality of holes 111 and 121 for fixing 110 and 120 to the jawbone are formed.
  • the holes 111 and 121 are spaces into which screws for fixing the bone surface implants 110 and 120 to the jaw bone are inserted, and the screws inserted into the holes 111 and 121 are It plays a role in stably fixing to the jaw bone.
  • the bone surface implants shown in FIGS. 2 to 4 are only one embodiment of the present invention, and the bone surface implants shown in FIGS. 2 to 4 are not limited to bone surface implants designed according to the present invention.
  • the bone surface implant is manufactured according to the patient's needs as described above, and the oral condition, tooth arrangement, or edentulous range are different for each patient.
  • the method for manufacturing a 3D personalized dental bone surface implant according to the present invention can manufacture a patient-specific bone surface implant according to the patient, and through this, bone surface implants of various designs can be manufactured.
  • FIG. 5 is a bone surface implant applied to the maxillary premolars
  • FIG. 6 is a bone surface implant applied to the maxillary posterior teeth
  • FIG. 7 is a bone surface implant applied to the maxillary anterior teeth
  • FIG. 8 is applied to the mandibular posterior teeth.
  • various bone surface implant designs can be designed for each patient's defect or oral condition, as shown in FIGS. 5 to 8 .
  • the method for manufacturing a 3D personalized dental bone surface implant includes outputting the designed bone surface implant with a 3D printer (S500).
  • the step of outputting the designed bone surface implant with a 3D printer may be printed using various materials, but in an embodiment of the present invention, ASTM F136, ASTM F67, ASTM F75, ASTM F1537 series It is printed using either metal alloy or ultra high molecular weight polyethylene (UHMWPE).
  • ASTM F136, ASTM F67, ASTM F75, ASTM F1537 series It is printed using either metal alloy or ultra high molecular weight polyethylene (UHMWPE).
  • ASTM F136 and ASTM F67 are titanium alloys
  • ASTM F75 and ASTM F1537 are cobalt chrome alloys.
  • a metal of the ASTM F136 series is used for the following reasons.
  • ASTM F136-based metal has a composition shown in Table 1 below.
  • the ASTM F136 series metal has excellent mechanical properties shown in Table 2 through the composition shown in Table 1 above.
  • the ASTM F136 series metal is suitable as a medical material because it has excellent properties such as corrosion resistance, workability, and high specific strength as well as excellent mechanical properties.
  • EBM electron beam melting
  • SLM selective laser melting
  • DED direct fusion bonding
  • the implant manufactured through the 3D personalized dental bone surface implant manufacturing method according to an embodiment of the present invention is implanted by elevating the mucosa and periosteum of the patient's edentulous area, inserting the implant manufactured according to the patient's condition, and then screwing
  • the prosthesis (S700) which is provided according to the patient's needs through the fixing procedure (S600) and manufactured by taking an impression after the procedure, is coupled to the abutment shown in FIGS. 3 and 4.
  • the method for manufacturing a 3D personalized dental bone surface implant firstly uses CAD and 3D printing technology for patients with insufficient jawbone (jawbone) and soft tissue through the above-described technical configurations.
  • CAD and 3D printing technology for patients with insufficient jawbone (jawbone) and soft tissue through the above-described technical configurations.
  • Using the implant it is possible to easily and quickly manufacture the implant, and it is possible to prepare in advance for a later step for restoring the tooth.
  • the treatment period is significantly shortened compared to conventional implants, and it can be applied not only to dental implants but also to maxillofacial reconstruction including orbits without invasive procedures such as bone grafting for conventional root-type implant implantation.
  • the implant can be easily and quickly manufactured using CAD and 3D printing technology for patients with insufficient jawbone (jawbone) and soft tissue, , It is possible to prepare for future steps to restore teeth in advance, and the treatment period is significantly shortened compared to conventional implants. It can also be applied to maxillofacial reconstruction, and has an excellent effect of reducing complications of existing implants such as nerve damage or maxillary sinus disease, so there is industrial applicability.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
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Abstract

La présente invention concerne un procédé de fabrication d'un implant de surface osseuse dentaire personnalisé individuel en 3D et, plus particulièrement, le procédé consiste : à capturer une image CT d'une mâchoire brisée et l'état bucco-dentaire d'un patient ; à extraire un modèle 3D de la mâchoire du patient à l'aide de l'image capturée ; à définir un agencement de dents d'une zone édentée et la position d'une butée ; à concevoir un implant de surface osseuse devant être intégré à la butée et être en contact avec la surface de la zone édentée du patient ; et à imprimer l'implant de surface osseuse conçu à l'aide d'une imprimante 3D.
PCT/KR2021/016611 2021-11-15 2021-11-15 Procédé de fabrication d'implant de surface osseuse dentaire personnalisé individuel en 3d Ceased WO2023085474A1 (fr)

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KR10-2021-0156404 2021-11-15

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