WO2024064611A1 - Système de mélange composite de nuances personnalisées pour dentisterie - Google Patents

Système de mélange composite de nuances personnalisées pour dentisterie Download PDF

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Publication number
WO2024064611A1
WO2024064611A1 PCT/US2023/074446 US2023074446W WO2024064611A1 WO 2024064611 A1 WO2024064611 A1 WO 2024064611A1 US 2023074446 W US2023074446 W US 2023074446W WO 2024064611 A1 WO2024064611 A1 WO 2024064611A1
Authority
WO
WIPO (PCT)
Prior art keywords
input materials
target
dental structure
shade
mixing
Prior art date
Application number
PCT/US2023/074446
Other languages
English (en)
Inventor
Daniel Henry
Original Assignee
Daniel Henry
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 Daniel Henry filed Critical Daniel Henry
Publication of WO2024064611A1 publication Critical patent/WO2024064611A1/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
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/0026—Syringes or guns for injecting impression material; Mixing impression material for immediate use
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/60—Devices specially adapted for pressing or mixing capping or filling materials, e.g. amalgam presses
    • A61C5/68—Mixing dental material components for immediate application to a site to be restored, e.g. a tooth cavity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G01J3/508—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors measuring the colour of teeth

Definitions

  • CAD/CAM computer assisted design/manufacturing
  • the inventive technology is directed to preparing a material for dental structure having a predetermined custom shade and color (also referred to as a "shade” or “color/shade” for simplicity).
  • the target shade may be captured off the existing tooth by a digital camera.
  • the acquired digital image may be processed to determine the target color, shade, hue, etc. (collectively, “shade” or “color/shade”) of the dental structure using commercially available or custom software.
  • the custom mixing system mixes input components of the dental structures into a final (target) mixture using a pre-determined ratio of the components that is automatically determined based on the acquired digital image.
  • just three different components of the input material suffice to produce a wide variety of target shades for the dental structures.
  • FIGURE 1 is a schematic diagram of a color/shade measurement system in accordance with an embodiment of the present technology
  • FIGURE 2 is a partially schematic side view of a system for manufacturing dental structure in accordance with an embodiment of the present technology
  • FIGURE 3A is a partially schematic side view of a system for manufacturing dental structure in accordance with an embodiment of the present technology
  • FIGURE 3B is a schematic view of an in-mouth injection matrix in accordance with an embodiment of the present technology
  • FIGURE 3C is a partially schematic side view of a system for manufacturing dental structure in accordance with an embodiment of the present technology.
  • FIGURE 4 is a flowchart describing a method for manufacturing dental structure in accordance with an embodiment of the present technology.
  • FIG. 1 is a schematic diagram of a color/shade measurement system in accordance with an embodiment of the present technology.
  • the system 100 may be used to determine representative color and/or shade of a target tooth 10.
  • a source of light 20 e.g., an LED, a laser, a laser diode, a discharge lamp, etc.
  • the incoming light may be reflected toward a lens 30, and further toward a light sensor 35 (e.g., a digital camera) that captures an image of the target tooth.
  • the captured image contains the color/shade information that can be transmitted to a controller 40 (e.g., a computer) through a wireless or wired communication 37.
  • the color/shade information becomes an input to the process of manufacturing a customized material for a dental structure, as explained in more detail with respect to Figure 2 below.
  • FIG. 2 is a partially schematic side view of a system 200 for manufacturing dental structure in accordance with an embodiment of the present technology.
  • a custom shade mixing system 200 receives information corresponding to the desired color and/or shade of the dental structure.
  • the information corresponding to the desired color and/or shade of the dental structure can be received by a receiver 116, which may be a wireless or a wired receiver, of a mixing gun 110.
  • the custom shade mixing system 200 is capable of producing the target color/shade based on a proper ratio of the input materials 119.
  • a controller 140 e.g., a computer, processor, computer storage, etc.
  • a controller 140 is configured for determining proper ratios of the input materials 119.
  • the inventor has found that in many practical applications a mixture of three input components 119 serves well to achieve a target color/shade of the dental structure.
  • the target color/shade of the dental structure may be achievable by, say, 30% of a first input material, 50% of a second input material, and a 20% of a third input material.
  • Other combinations of input materials are also possible in different embodiments.
  • the required ratios of the input materials 119 may be forwarded by actuators 118 (e g., stepper motors, micromotors, etc.) through dispensing channels 120 into their respective plungers 122.
  • the actuators 118 may be powered off a battery 114 (e.g., a single use battery, or a rechargeable battery that is charged through a charging element 112).
  • the plungers 122 may forward the input materials 119 (in required ratios that are controlled by the actuators 118) toward cartridges 126.
  • the cartridges 126 may be replaceable cartridges that are prefilled with their respective input materials.
  • action of the plungers 122 is limited by the stopper 124.
  • properly dosed materials 119 are forwarded to an adapter 128 and further through a funnel (or other material-aggregating element) 130.
  • the mixture of materials 119 enters a mixing tip 132 where the materials are mixed into a relatively homogenous mix of dental material that is characterized with a relatively uniform color/shade.
  • the mixing tip 132 may be disposable, and anew mixing tip may be used for each target dental structure.
  • the mixture of dental material that leaves the mixing tip 132 may be collected by a dish 180.
  • the dish 180 may be shaped as a mold for the target dental structure in order to, at least partially, simplify the subsequent steps of producing the required shape of the dental structure.
  • Figure 3A is a partially schematic side view of a system 200 for manufacturing dental structure in accordance with an embodiment of the present technology.
  • the mixing gun 110 may be utilized to mix input materials 119 and to apply the mixture directly into the patient’s mouth using an injection matrix 212.
  • a user may find the injection matrix 212 to be preferable when a plurality of dental structures requires similar treatment.
  • the injection matrix 212 may be formed using a conventional wax-up method, in which a silicone impression is taken of the patient's existing dental structure 202.
  • the desired shape of the dental structure may then be crafted into a fillable mold 204 formed within the injection matrix 212 around the existing dental structure 202. In other embodiments, this design process may be accomplished digitally with the aid of specialty software.
  • matching a dental structure to surrounding dental structures may require the user to develop the structure’s appearance in layers.
  • a user may create multiple injection matrices 212 to accommodate the creation of multiple dental structure layers within a single dental structure. For example, a first injection matrix 212 having a first design may be created for an inner dentin layer of a tooth, a second injection matrix 212 having a second design may be created to further define a tooth’s apparent characteristics or features, and a third injection matrix 212 have a third design may be created for an outer enamel layer.
  • Figure 3B is a schematic view of an in-mouth injection matrix 212 in accordance with an embodiment of the present technology'.
  • the injection matrix 212 may feature one or more injection holes 206 to facilitate the application of the input materials 119.
  • user may place the mixing tip 132 of the mixing gun 1 10, in the desired injection hole 206 and apply the mixture to the existing dental structure as described above.
  • there may be a plurality of injection holes 206 for each dental structure receiving treatment to facilitate the application and flow of the mixture from the mixing gun 110 into the fillable mold 204.
  • Figure 3C is a partially schematic side view of a system for manufacturing dental structure in accordance with an embodiment of the present technology'.
  • the mixing gun 110 may be utilized to mix input materials 119 and apply the mixture to a fillable mold 210 for placement in the patient’s mouth at a later time.
  • a user may find a mold 212 to be preferable when the user only wishes to conduct work on a single dental structure (e.g., a crown or a dental bridge).
  • the mold is formed using an impression made of the patient’s existing teeth to ensure that the dental structure will fit amongst the patient’s other teeth, around the existing damaged tooth 202, and extend from the patient’s gums 208 a length such that ensures a desirable uniform appearance without limiting utility.
  • this design process may be accomplished digitally with the aid of specialty' software.
  • matching a dental structure to surrounding dental structures may require the user to develop the structure’s appearance in layers.
  • a user may create multiple molds 210 to accommodate the creation of multiple dental structure layers within a single dental structure. For example, a first mold 210 having a first design may be created for an inner dentin layer of a tooth, a second mold 210 having a second design maybe created to further define a tooth’s apparent characteristics or features, and a third mold 210 have a third design may be created for an outer enamel layer.
  • Figure 4 is a flowchart describing a method for manufacturing dental structure in accordance with an embodiment of the present technology 7 .
  • the method may include additional steps or may be practiced without all steps illustrated in the flow chart.
  • the order of the steps listed may be changed.
  • the method begins at block 300, during which the user develops a specific treatment plan that meets the patient’s particular dental needs.
  • the user then proceeds to block 302, during which the user forms a dental mold for the patient based on their existing tooth 202 or other dental structure.
  • This mold may take many forms including, but not limited to, a fillable mold 204 within an injection matrix 212 or a separately fillable mold 210 for a bridge or crown.
  • the user may determine that a plurality of molds are required to adequately administer care.
  • This mold may be shaped in a variety of ways including, but not limited to, conventional or digital wax-up, as described with respect to Figure 3A above.
  • a source of light 20 e.g., an LED, a laser, a laser diode, a discharge lamp, etc.
  • the incoming light may be reflected toward a lens 30, and further toward a light sensor 35 (e.g., a digital camera) that captures an image of the target tooth.
  • the captured image contains the color/shade information that can be transmitted to a controller 40 (e.g., a computer) through a wireless or wired communication 37.
  • the color/shade information becomes an input to the process of manufacturing a customized material for a dental structure, as explained in subsequent blocks.
  • the user determines the dental structure layer they will work on next. In some embodiments, users may determine that multiple layers (e.g., dentin, enamel, etc.) may be necessary to sufficiently capture or replicate a tooth’s apparent characteristics, features, or finish.
  • the user determines a target shade to be mixed and dispensed by the mixing gun 110 from the digital image of the target tooth 10.
  • the custom shade mixing system 200 receives information corresponding to the desired color and/or shade of the dental structure. In some embodiments, the information corresponding to the desired color and/or shade of the dental structure can be received by a receiver 116, which may be a wireless or a wired receiver, of a mixing gun 110.
  • the user determines the proper ratio of input materials 119 to produce the desired shade when mixed. In some embodiments, this block is performed by a controller 140 (e.g., a computer, processor, etc.).
  • the required ratios of the input materials 119 are forw arded by actuators 118 (e g., stepper motors, micromotors, etc.) through dispensing channels 120 into their respective plungers 122.
  • the plungers 122 then forward the input materials 119 (in required ratios that are controlled by the actuators 118) toward cartridges 126.
  • the cartridges 126 may be replaceable cartridges that are prefilled with their respective input materials.
  • action of the plungers 122 is limited by the stopper 124.
  • the input materials 119 are forwarded from the cartridges 126 in the desired ratios to an adapter 128 and further through a funnel (or other material-aggregating element) 130.
  • the input materials 119 are dispensed through a mixing tip 132 in block 320 to form a relatively homogenous mixture in the target shade.
  • the mixture is then applied into the formed mold. In some embodiments, this mixture is applied through injection holes 206 in an injection matrix 212 in the patient’s mouth. In other embodiments, this mixture is applied to a fillable mold 210 outside of the patient’s mouth for later insertion.
  • the mixing tip 132 may be disposable, and a new mixing tip may be used for each target dental structure.
  • the dispensed mixture is then cured under ultraviolet (UV) light.
  • the user is then presented may be presented with two choices in blocks 322 and 324.
  • the user may elect to apply a new target shade to the same layer. If so, the user returns to block 310 to determine the new target shade. If not, the user proceeds to block 324. in which they may elect to proceed to a new layer. If so, the user returns to block 308 to determine the next appropriate dental structure layer. If not, the user proceeds to block 328, in which the method ends.
  • the cured dental structure may then require additional cosmetic procedures (e.g. shaping, polishing, etc.) dependent upon the patient's input and treatment plan.
  • ⁇ may take the form of computer- or controller-executable instructions, including routines executed by a programmable computer or controller.
  • the technology can be practiced on computer/controller systems other than those shown and described above.
  • the technology can be embodied in a special-purpose computer, controller or data processor that is specifically programmed, configured or constructed to perform one or more of the computer-executable instructions described above.
  • the terms "‘computer” and “controller” as generally used herein refer to any data processor and can include Internet appliances and hand-held devices (including palmtop computers, wearable computers, cellular or mobile phones, multi -processor systems, processor-based or programmable consumer electronics, network computers, mini computers and the like).
  • the present application may use the term '‘plurality’ 7 to reference a quantity or number.
  • the term ‘'plurality” is meant to be any number that is more than one, for example, two, three, four, five, etc.

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)

Abstract

L'invention concerne des systèmes et des procédés de mélange composite de nuances personnalisées pour la dentisterie. Dans un mode de réalisation, un système de mélange personnalisé pour une structure dentaire comprend : un récepteur configuré pour recevoir une nuance cible de la structure dentaire ; et un dispositif de commande configuré pour déterminer des rapports de mélange cibles d'une pluralité de matériaux d'entrée. Une pluralité d'actionneurs sont conçus pour transférer des matériaux d'entrée individuels. Une pluralité de canaux de distribution sont conçus pour acheminer les matériaux d'entrée individuels vers des pistons individuels. Une butée est conçue pour limiter un mouvement des pistons. Un adaptateur conçu pour connecter les pistons à un entonnoir. Une pointe de mélange est conçue pour recevoir un mélange des matériaux d'entrée individuels, et pour délivrer en sortie le mélange ayant la nuance cible hors du système.
PCT/US2023/074446 2022-09-20 2023-09-18 Système de mélange composite de nuances personnalisées pour dentisterie WO2024064611A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263376415P 2022-09-20 2022-09-20
US63/376,415 2022-09-20

Publications (1)

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WO2024064611A1 true WO2024064611A1 (fr) 2024-03-28

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993024074A1 (fr) * 1990-11-26 1993-12-09 Tretout Jean Pierre Dispositif de preparation d'une quantite definie d'un materiau de restauration dentaire
US20050170315A1 (en) * 2004-01-20 2005-08-04 Strobel Wolfgang M. System, method, computer program product and apparatus for producing dental restorations
US20120110851A1 (en) * 2006-03-13 2012-05-10 Jung Wayne D Systems and methods for preparing dental restorations
US8792097B2 (en) * 1996-01-02 2014-07-29 511 Innovations, Inc. Systems for applying pigment to a substrate with a spectrophotometer integral to the system
US20160332382A1 (en) * 2014-01-14 2016-11-17 King's College London 3D Printing of Facial Prostheses

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993024074A1 (fr) * 1990-11-26 1993-12-09 Tretout Jean Pierre Dispositif de preparation d'une quantite definie d'un materiau de restauration dentaire
US8792097B2 (en) * 1996-01-02 2014-07-29 511 Innovations, Inc. Systems for applying pigment to a substrate with a spectrophotometer integral to the system
US20050170315A1 (en) * 2004-01-20 2005-08-04 Strobel Wolfgang M. System, method, computer program product and apparatus for producing dental restorations
US20120110851A1 (en) * 2006-03-13 2012-05-10 Jung Wayne D Systems and methods for preparing dental restorations
US20160332382A1 (en) * 2014-01-14 2016-11-17 King's College London 3D Printing of Facial Prostheses

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