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WO2022077129A1 - Système d'élaboration de piliers pour implants dentaires personnalisés dans des structures de grille par découpe laser et tournage, procédés et utilisations de celui-ci - Google Patents

Système d'élaboration de piliers pour implants dentaires personnalisés dans des structures de grille par découpe laser et tournage, procédés et utilisations de celui-ci Download PDF

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Publication number
WO2022077129A1
WO2022077129A1 PCT/CL2021/050100 CL2021050100W WO2022077129A1 WO 2022077129 A1 WO2022077129 A1 WO 2022077129A1 CL 2021050100 W CL2021050100 W CL 2021050100W WO 2022077129 A1 WO2022077129 A1 WO 2022077129A1
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WIPO (PCT)
Prior art keywords
lattice
manufacturing system
manufacturing
dental
milling
Prior art date
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Ceased
Application number
PCT/CL2021/050100
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English (en)
Spanish (es)
Inventor
Heinz Kurt VAN DER MOLEN ÁLVAREZ
Jhony Mauricio SILVA CHACÓN
Jorge Ariel GUILOFF PAPUZINSKI
Joaquín HOFFMANN BOUCHÓN
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Dit SpA
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Dit SpA
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Publication of WO2022077129A1 publication Critical patent/WO2022077129A1/fr
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Classifications

    • 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
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • 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
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • 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
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • 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

  • Abutment manufacturing system for personalized dental implants in lattice structures via metal laser and turning, methods and use thereof are provided.
  • the present invention is useful in the field of dental health, healthcare and dental prosthetics.
  • EAP Extended Anatomical Platform
  • CL 201600859 describes a multifunctional prosthetic system
  • CL 201403410 describes an adaptable definitive prosthetic abutment, using traditional or known technologies and manufacturing methods.
  • AM Additive Manufacturing
  • lattice-type microstructures are a concept existing in nature, such as from the structure of a lotus leaf or bone structure (internal microstructure of human bones), including human constructions such as the design of the Eiffel Tower. and other architectural structures, structures.
  • the use of "lattices” in the design of structures that will later be produced by 3D printing or additive manufacturing is very common and has gained relevance in recent years due to Design for Additive Manufacturing (DFAM), which has been referred to by experts in the field. field such as art, science and the ability to design for manufacturing with 3D printers.
  • DFAM differs from the traditional manufacturing process because this additive design process allows engineers create more complex shapes and production parts while reducing time, cost, weight, and material consumption.
  • Figure 1 is a diagram of the manufacturing system of the described invention.
  • Figure 2 is an elevation view of a lattice pre-stop piece.
  • Figure 3 is a perspective view of the final product.
  • Figure 4 corresponds to the design of the final product, prior to the milling stage.
  • Figure 5 corresponds to a Prel OOO Lattice Block for angled and straight work.
  • Figure 6 corresponds to the identifiable zones in the lattice block.
  • Figure 7 corresponds to the turning area in the lattice block.
  • Figure 8 corresponds to a fastening plate for fasteners of the different platforms that can be used for lattice sintering in the manufacture of the lattice-based pre-pillar.
  • Figure 9 corresponds to the lattice surface of the sintered body in the lattice block.
  • Figure 10 shows some varieties of milling platform supports compatible with the invention, which can be sintered using the system of the invention.
  • Figure 11 corresponds to the support area of the lattice block, in contact with the support device of any of the available support platforms.
  • Figure 12 corresponds to the partial longitudinal sectional view of a lattice block, where the sintered body is connected to the turning area, making visible the pre-milled internal channel.
  • Figure 13 longitudinal section view of a lattice block, indicating the range of angulation allowed by the manufacturing system of the invention, between 0 and 30 degrees.
  • Figure 14 longitudinal section view of a lattice block with the design of an angled work of 30 degrees
  • the invention comprises a custom mixed manufacturing system for a custom pillar, comprising a method for manufacturing a pre-pillar structure as follows: i) an initial process that includes turning a piece as the base of the pre-pillar or lattice block; i) a secondary process that includes additive manufacturing and Design for additive manufacturing, to synthesize a pre-pillar part using the turned part as the basis for the additive manufacturing process to obtain a lattice-based pre-pillar part; and iii) a final additional step to mill and shape the previous abutment into a custom final abutment piece.
  • a part is turned by means of a precision turning apparatus (for example: a Swiss lathe); where the piece turned by lathe of precision, corresponds to a structure with a geometric shape that, on the one hand, is oriented directly to the implant and, on the other hand, has the shape of an open chimney.
  • a precision turning apparatus for example: a Swiss lathe
  • the manufacturing process preferably during the initial process, comprises the turning of the base of the connection to the implant, and also an entry that allows customizing the location of the fastening screw to the implant, according to the needs of the patient and/or the requirement of the medical staff that indicates the parameters for the preparation of the pre-pillar.
  • the element manufactured as a result of the initial process is located inside a special accessory (such as: plate or multiple receptacle for sintering or "holder") called manufacturing plate, in where said manufacturing plate or "holder” is made to measure (in-house manufacturing) for each existing and/or compatible implant fixation platform (Figure 8), such as, for example, platforms from different suppliers, including: “Zimmer”, “ Straumman”, “Neobiotech”, Biohorizons, “MIS”, “BIOMET”, “NOBEL”, “ALPHA BIO” and any other appropriate compatible platform, where each of the forms of any of the aforementioned platforms is incorporated in the design of the manufacturing plate or holder, depending on the client's needs, and where the manufacturing system allows the elaboration of a "multi-connection" manufacturing plate or holder, which in turn allows the simultaneous sintering of different pre-abutments with any of the different implant fixation platforms available; where the manufacturing plate was configured and is made to manufacture above the turned part and without
  • Each of the slots or insertion holes of the first part of the block or turning zone (1) is designed so that said turning zone fits exactly in the insertion hole. Additionally, manufacturing by lattice sintering, in addition to reducing the use of material, time and production cost, considerably reduces the risk of "warping" in the sintered part, where the heat generated reaches levels sufficient to produce deformations or damage to the part. shape, or structure of the part at precision levels, subsequently affecting the quality and usefulness of the manufactured part or pre-pillar. The combination of a solid inner structure and an outer or surface structure based on lattice made from sintered material reduces the effect "warping" and provides a high quality finished product, compared to other similar products on the market.
  • Said plate is located inside a 3D printing unit (for example: metal 3D printing unit), and in which the manufactured element is then covered with a powder material (including: CoCr (Cobalt - Chromium), Ti (Titanium), metal powder and any other suitable powder material) and by using a laser strategy (optical emission devices), a laser is directed at the manufactured element located in the metal unit, so that builds a kind of body on the manufactured element, via microfusion, where the body of the structure is a 'lattice or lattice type structure', and where the microfusion between the manufactured element (turned element) and the new body on the manufactured element has certain and special characteristics, including a special morphology with a structure that contains free space (lattice or lattice structure) and that allows it to be connected to a third structure called support structure (3), which it will go inside a milling machine and allow it to be milled on a small-scale milling machine, according to a 3D digital graphics format file (for example, a 3D digital graphics
  • the manufacturing system of the invention is adapted to produce different types of connection supports to milling machines, which allows different terminations and shapes to be produced for the support structure (3) simultaneously, thus avoiding the use of predefined molds used in mass production as in the case of the use of regular industrial machinery, and also allowing to reduce the cost and manufacturing time, directly manufacturing the quantity and volume of parts according to demand, optimizing the process manufacturing, saving materials, time and resources.
  • the fabricated part structure or pre-abutment structure can be finally inserted into a milling machine to obtain the final shape, turning the pre-abutment into a finished product or final custom abutment .
  • the system of the invention allows the final process to be carried out directly by a client or user who has requested the pre-abutment under specific requirements, being able to mold the pre-abutment in its final form directly at the time of implanting the patient thus avoiding any manufacturing problems associated with processing errors, production line failures, production or errors in the requested parameters, thus being able to adapt the personalized final product in real time, including testing and correcting directly at the time of its implementation.
  • the present method provides a high quality product in which the quality of the invention is related to a direct-to-implant geometry concept, in which the benefits of sintering the lattice structure directly on a turned element, are considerable. Reduce the possibility of entry of any common oral bacteria into the custom abutment, providing a safer and more durable structure for implantology procedures and dental implants.
  • the manufacturing system of the present invention by means of sintering in a lattice structure, allows the support to be adapted for subsequent milling of the elaborated pre-pillar, because it can be designed for any type of suitable and available milling platform, including Medentika platform and any other existing suitable platform, using the sintered lattice to optimize the manufacturing quality, time and costs of the process.
  • the metal powder can be selected from at least one of the following metals: CoCr and Ti, which allows the porcelain to be used immediately or directly on the abutment, or to cement a crown porcelain in a very simple way.
  • the fabricated part structure may provide a pre-support structure with an angle of at least 30 degrees.
  • the pre-customized abutment piece or elaborated lattice-based block can be used for a personalized dental implant procedure that can be performed directly by a healthcare professional.
  • the custom dental implant procedure may include the process of milling and shaping on the pre-abutment to obtain a custom final piece of the abutment, and where the milling process is It can be done with a low-scale milling machine compatible with any dental health center.
  • the use of the invention may be indicated for patients with dental prostheses for implantology.
  • the invention further comprises a personalized lattice-based pillar built by any of the method(s) described above, where the personalized pillar corresponds to a lattice-based block for angled and straight work; where the lattice-based block is composed of at least three specific segments: i) turned area (1), i) sintered body (2), and iii) sintered support area (3) ( Figure 6), in where the lattice body is composed of a solid sintered core and a lattice sintered surface, in a thickness range between 0.1 and 0.5 mm, where preferably the thickness of the lattice sintered surface is 0.3 mm .
  • the manufacturing system of the present invention has the ability to angle the entry of the screw according to the requirement or need of the case, including the recommendation of the corresponding medical professional (for example, an implantologist). ) and give it an axis up to 30°, simultaneously and without requiring any other type of special tools (for example, CNC tools) mainly because: a) the turned part has a pre-produced input through the turning process, thus allowing the screw to sit correctly, since b) the structure outside the pre-pillar made by the manufacturing system of the invention, has a lattice structure on its outer surface (also known as a "honeycomb structure" or "lattice”la) for what allows the realization of the last stage of the final process, the final milling, to be carried out with less complex equipment and directly by the client/user who requires the pre-abutment, to give it the final shape before being implanted in the patient.
  • a lattice structure on its outer surface also known as a "honeycomb structure" or "lattice”la
  • the posterior milling in combination with the software modification is of lower impact, smoother and of less wear for the milling equipment (it infers less cost to the milling cutters) and the machines need to mill less, with which the invention allows to make a personalized product more efficient, scalable, at a lower production cost than any other standard conventional abutment and that also increases the useful life of the standard milling machinery used in any local or external installation, in which final milling of the pre-abutment is performed.
  • the manufacturing system of the invention allows the creation of an input for angulation by milling, through software configuration in combination with sintering, where through the sintering process of the support (3), the manufacturing system It allows to design and elaborate a support or the connection means for a suitable support for the subsequent milling through the available milling platforms of a block for the manufacture of a dental implant, and where in addition, the necessary angle for the entry of the screw, can be done by a combination of elements during the manufacturing process, including: software angulation creation, tournament stage, and sintering stage, including sintering of the bracket or connecting means for any standard milling bracket, to form the angle screw entry.
  • the angulation by milling described above that allows the proposed invention, combines the quality of seating of a screw created by turning, together with the flexibility of access of the screw to the turned screw seat, by means of the subsequent milling of the prepillar that has been sintered in structure lattice body, with a solid body center and a lattice body surface, to which the support zone is added by sintering (which also comprises a combination of solid segment and lattice segment to optimize the quality, manufacture and robustness of the support) for subsequent milling either for right-angled or angled implants, where the manufacturing system of the invention allows the elaboration of a personalized pre-abutment piece to be milled in any available milling machine, thanks to the personalized sintering of the support or with the means connection to existing supports for milling, allowing the milling of parts with right angle or ang ulated interchangeably, even on milling machines originally designed for right angles.
  • the sintered support zone (3) comprises a solid segment that ensures a robust connection for the milling adapter support
  • the present invention describes a manufacturing system, manufacturing method and a customized pre-abutment product compatible for the manufacture of dental implants independent of their angulation, and where the pre-abutment product can be milled at any angle. machine milling platforms for existing right angle abutments for the elaboration of dental implants, independent of the angulation channel for connection with the screw.
  • the system of the present invention allows to ensure the highest quality standard in the elaboration of each one of the pieces, forms and design of the pre-pillar, allowing the settlement of the different components and elements related to the pre-pillar. abutment, including screws, couplings and any other part necessary for the adjustment of the implant later in the patient.
  • the dimensions are 22 mm height * 11.48 mm (major diameter) * 9.5 mm (minor diameter), the thickness of the lattice surface of the pillar body is 0, 3 mm, the internal angulation is 25 degrees, the turned area (1) has a height of 4.5 mm, and the total height of the body (2) added to the support area (3) is 17.5 mm .
  • the central zone or sintered body ( Figure 6) is composed of two parts: an internal solid cobalt chrome for dental use and a superficial CRCO Lattice with a thickness of 0.3 mm ( Figure 9).
  • the support area may vary depending on the platform on which the block is to be worked ( Figure 10).
  • the synthetic support system ( Figure 6) for Medentika is made up of two parts: one synthesized in Lattice and the other solid with a thickness of 2 mm in contact area with the holder. ( Figure 11). 2.
  • the central zone or sintered body ( Figure 6) is made up of two parts: an internal solid cobalt chrome for dental use and a superficial CRCO Lattice with a thickness of 0.3 mm ( Figure 9).
  • the support zone ( Figure 6) can vary depending on the platform on which the block is going to be worked ( Figure 10).
  • the sintered support system ( Figure 6) for Medentika is made up of two parts: one sintered in Lattice and the other solid with a thickness of 2 mm in contact area with the holder. ( Figure 11).

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  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Prostheses (AREA)

Abstract

L'invention concerne un système de fabrication mixte et automatique, qui comprend le tournage et la fabrication additive dans un processus simultané et/ou consécutif, à l'aide du fraisage postérieur, pour la production d'un pilier utilisé dans les prothèses dentaires, dans lequel au lieu de fabriquer une pièce métallique solide préformée, qui est ensuite façonnée au moyen d'une fraiseuse de précision coûteuse pour réaliser la pièce finale, une pièce préformée sur une structure de grille est réalisée comme base pour un pilier personnalisé (pièce de pré-pilier), la structure de grille utilisée pour fabriquer la pièce (pré-pilier) offre les avantages suivants : économie de matériau, réduction du temps de production et, dans le même temps, simplification du procédé de fraisage de sorte que, comme procédé de fabrication finale, le pré-pilier soit finalement réalisé directement pour convertir le pré-pilier en un pilier définitif, ou le procédé de fraisage pour le pré-pilier peut être mis en œuvre au moyen de dispositifs moins techniquement complexes compatibles avec ceux normalement utilisés pour les enfoncements et dans tous les établissements de santé, et dans lequel le procédé de fraisage peut être réalisé directement dans le pré-pilier par le professionnel de la santé dentaire durant une consultation médicale avec ou sans le patient, comme partie d'un service de fraisage dentaire interne personnalisé.
PCT/CL2021/050100 2020-10-15 2021-10-14 Système d'élaboration de piliers pour implants dentaires personnalisés dans des structures de grille par découpe laser et tournage, procédés et utilisations de celui-ci Ceased WO2022077129A1 (fr)

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US202063092268P 2020-10-15 2020-10-15
US63/092,268 2020-10-15

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WO2022077129A1 true WO2022077129A1 (fr) 2022-04-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4309620A1 (fr) * 2022-07-21 2024-01-24 Anthogyr Procede de fabrication d'une embase pour la reception d'une prothese dentaire
WO2024250123A1 (fr) * 2023-06-07 2024-12-12 Vargas Valdes Rodrigo Andres Tige métallique de fixation pour blocs dentaires cao/fao c12, c14, c16 ou de toutes les tailles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5527182A (en) * 1993-12-23 1996-06-18 Adt Advanced Dental Technologies, Ltd. Implant abutment systems, devices, and techniques
WO2015189647A1 (fr) * 2014-06-13 2015-12-17 Vergoullis Loannis Moules pour piliers implantaires et tiges d'empreinte dentaires sur mesure
DE102017108592A1 (de) * 2017-04-21 2018-10-25 Heraeus Kulzer Gmbh Verfahren zur Herstellung einer Dentalprothese mit parallelen Wurzeln der Prothesenzähne
US20200147887A1 (en) * 2004-12-02 2020-05-14 Align Technology, Inc. System and method for manufacturing a dental prosthesis and a dental prosthesis manufactured thereby

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5527182A (en) * 1993-12-23 1996-06-18 Adt Advanced Dental Technologies, Ltd. Implant abutment systems, devices, and techniques
US20200147887A1 (en) * 2004-12-02 2020-05-14 Align Technology, Inc. System and method for manufacturing a dental prosthesis and a dental prosthesis manufactured thereby
WO2015189647A1 (fr) * 2014-06-13 2015-12-17 Vergoullis Loannis Moules pour piliers implantaires et tiges d'empreinte dentaires sur mesure
DE102017108592A1 (de) * 2017-04-21 2018-10-25 Heraeus Kulzer Gmbh Verfahren zur Herstellung einer Dentalprothese mit parallelen Wurzeln der Prothesenzähne

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4309620A1 (fr) * 2022-07-21 2024-01-24 Anthogyr Procede de fabrication d'une embase pour la reception d'une prothese dentaire
WO2024250123A1 (fr) * 2023-06-07 2024-12-12 Vargas Valdes Rodrigo Andres Tige métallique de fixation pour blocs dentaires cao/fao c12, c14, c16 ou de toutes les tailles

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