FR2669526A1 - Device for preparation of a defined quantity of a substance for dental restoration - Google Patents
Device for preparation of a defined quantity of a substance for dental restoration Download PDFInfo
- Publication number
- FR2669526A1 FR2669526A1 FR9014768A FR9014768A FR2669526A1 FR 2669526 A1 FR2669526 A1 FR 2669526A1 FR 9014768 A FR9014768 A FR 9014768A FR 9014768 A FR9014768 A FR 9014768A FR 2669526 A1 FR2669526 A1 FR 2669526A1
- Authority
- FR
- France
- Prior art keywords
- components
- color
- distributor
- mixer
- quantities
- 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.)
- Granted
Links
- 239000000126 substance Substances 0.000 title abstract 3
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 12
- 239000003086 colorant Substances 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 210000003298 dental enamel Anatomy 0.000 description 5
- 210000004268 dentin Anatomy 0.000 description 5
- 230000010365 information processing Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/10—Supports for artificial teeth for transport or for comparison of the colour
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
- B01F33/844—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins with means for customizing the mixture on the point of sale, e.g. by sensing, receiving or analysing information about the characteristics of the mixture to be made
- B01F33/8442—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins with means for customizing the mixture on the point of sale, e.g. by sensing, receiving or analysing information about the characteristics of the mixture to be made using a computer for controlling information and converting it in a formula and a set of operation instructions, e.g. on the point of sale
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/2131—Colour or luminescence
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/82—Forming a predetermined ratio of the substances to be mixed by adding a material to be mixed to a mixture in response to a detected feature, e.g. density, radioactivity, consumed power or colour
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- 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
-
- 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
- G01J3/463—Colour matching
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/19—Mixing dentistry compositions
Landscapes
- Spectroscopy & Molecular Physics (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Analytical Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Engineering & Computer Science (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
La présente invention concerne le domaine de la chirurgie dentaire et plus particulièrement celui de la restauration ou la reconstitution des dents d'un patient. The present invention relates to the field of dental surgery and more particularly that of the restoration or reconstruction of the teeth of a patient.
I1 existe aujourd'hui, à la disposition du chirurgien dentiste un très grand nombre de composants synthètiques qui permettent par polymérisation, ou sous forme de céramiques, de reconstruire partiellement ou totalement une ou plusieurs dents. I1 exists today, at the disposal of the dental surgeon a very large number of synthetic components which allow by polymerization, or in the form of ceramics, to reconstruct partially or completely one or more teeth.
I1 demeure une difficulté à surmonter : la reconstitution de la couleur. Cette reconstitution est à l'heure actuelle réalisée de manière approximative par le praticien qui dispose d'un nuancier établi par le fabricant de composant auquel, à l'oeil, le praticien compare la couleur des dents de son patient pour choisir le composant qui s'en rapproche le plus. Les résultats obtenus sont rarement satisfaisants. There remains a difficulty to be overcome: the reconstruction of color. This reconstruction is currently carried out approximately by the practitioner who has a color chart established by the component manufacturer to which, by eye, the practitioner compares the color of his patient's teeth to choose the component that s is closest to it. The results obtained are rarely satisfactory.
Le but de la présente invention est de remédier à cet inconvénient en proposant un dispositif grâce auquel il est possible de reproduire exactement les couleurs d'une dent voire ses nuances différentes et ses dégradés de teinte. The object of the present invention is to remedy this drawback by proposing a device by means of which it is possible to exactly reproduce the colors of a tooth or even its different shades and its shade gradations.
A cet effet, l'invention a donc pour objet un dispositif de préparation d'un matériau à usage de restauration dentaire, qui comporte
- un spectro colorimètre pour analyser la couleur de la structure dentaire existant au voisinage de l'emplacement de la restauration à réaliser,
- un distributeur de quantités définies et réglables d'une pluralité de composants de base, de teintes différentes, en forme de pâte ou de gel,
- un mélangeur placé en sortie du distributeur pour confectionner un mélange d'au moins deux composants,
- et une unité programmée de traitement des informations comportant en mémoire les caractéristiques colorimétriques de chacun des composants de base, reliée par ses entrées au spectrocolorimètre et à un organe manuel d'introduction de la quantité de matériau nécessaire, et par ses sorties, au distributeur et au mélangeur, de manière à commander, après calcul, le nombre et les quantités des composants à distribuer ainsi que le mélange de ceux-ci pour obtenir la quantité demandée de matériau de la couleur analysée.To this end, the invention therefore relates to a device for preparing a material for use in dental restoration, which comprises
- a spectrometer to analyze the color of the existing dental structure in the vicinity of the site of the restoration to be carried out,
- a distributor of defined and adjustable quantities of a plurality of basic components, of different shades, in the form of a paste or gel,
- a mixer placed at the outlet of the distributor to make a mixture of at least two components,
- and a programmed information processing unit comprising in memory the colorimetric characteristics of each of the basic components, connected by its inputs to the spectrocolorimeter and to a manual member for introducing the quantity of material required, and by its outputs, to the distributor and to the mixer, so as to control, after calculation, the number and the quantities of the components to be distributed as well as the mixture thereof to obtain the required quantity of material of the color analyzed.
Pour prendre en compte le fait que les différentes couleurs à reproduire sont toutes comprises dans une gamme de nuances d'une couleur générale du type ivoire, le distributeur comporte un compartiment principal de stockage d'un composant de teinte moyenne, les autres compartiments étant de volume moindre pour des composants additifs de teintes différentes. To take into account the fact that the different colors to be reproduced are all included in a range of shades of a general color of the ivory type, the distributor comprises a main compartment for storing a component of medium shade, the other compartments being of less volume for additive components of different colors.
D'autres caractéristiques et les avantages de l'invention ressortiront de la description ci-après d'un exemple de réalisation. Other characteristics and advantages of the invention will emerge from the description below of an exemplary embodiment.
I1 sera fait référence au dessin annexé qui représente schématiquement un appareil selon l'invention. I1 will be referred to the accompanying drawing which schematically shows an apparatus according to the invention.
L'appareil selon l'invention comprend, sur cette figure, un spectrocolorimètre I au moyen duquel on peut analyser la couleur d'une dent 2 ou d'une portion de dent 3 voisine de la zone 4 où doit avoir lieu la restauration. Les paramètres de cette couleur sont transmis à une unité programmée 5 de traitement des informations, représentée ici sous la forme d'un micro-ordinateur dont le clavier 6 permet l'entrée manuelle de valeurs de consigne telles que par exemple la quantité de matériau nécessaire à la restauration. Les sorties de l'unité de traitement sont, en plus de l'écran 7 de visualisation des données traitées et des résultats des calculs ou des relevés effectués, connectées à un distributeur-mélangeur 8 de composants. The apparatus according to the invention comprises, in this figure, a spectrocolorimeter I by means of which the color of a tooth 2 or of a portion of tooth 3 adjacent to zone 4 where the restoration must take place can be analyzed. The parameters of this color are transmitted to a programmed information processing unit 5, represented here in the form of a microcomputer whose keyboard 6 allows manual entry of set values such as for example the quantity of material required. to catering. The outputs of the processing unit are, in addition to the screen 7 for viewing the processed data and the results of the calculations or readings performed, connected to a distributor-mixer 8 of components.
La représentation schématique de cet appareil fait apparaître un carrousel 9 comportant une pluralité (cinq ou six) de compartiments 10, 11 de stockage des composants nécessaires à la constitution du matériau de synthèse et à la reproduction de la couleur analysée. L'un des compartiments 10 est de volume nettement plus important que les autres et est rempli d'un composant dont la teinte correspond à la teinte moyenne des dents c'est-à-dire proche de l'ivoire. Chaque compartiment est pourvu, en partie supérieure d'un piston 12, 13 pour l'extrusion du produit au travers d'une ouverture de sortie inférieure 14, 15. The schematic representation of this device shows a carousel 9 comprising a plurality (five or six) of compartments 10, 11 for storing the components necessary for the constitution of the synthetic material and for the reproduction of the color analyzed. One of the compartments 10 is significantly larger in volume than the others and is filled with a component whose shade corresponds to the average shade of the teeth, that is to say close to ivory. Each compartment is provided, in the upper part of a piston 12, 13 for the extrusion of the product through a lower outlet opening 14, 15.
Le carrousel 9 est monté tournant par rapport à un support 16 fixe et sa commande en rotation (par secteurs angulaires) est assurée par un moteur 17 relié à une sortie du micro-ordinateur 5. The carousel 9 is mounted to rotate relative to a fixed support 16 and its rotation control (by angular sectors) is ensured by a motor 17 connected to an output of the microcomputer 5.
Un vérin à vis micrométrique 18 supporté par le support 16, permet d'actionner la poussée des pistons 12, 13 lorsque ceux-ci se trouvent situés à son aplomb. A micrometric screw jack 18 supported by the support 16, makes it possible to actuate the thrust of the pistons 12, 13 when these are located at its base.
L'actionnement du vérin (course d'approche, amplitude de course utile, remontée) est également commandé par le microordinateur 5. Il est ainsi possible de délivrer dans un creuset 19 de mélange, une quantité déterminée et précise de chaque composant présent dans les compartiments sous forme de pâte ou de gel.The actuation of the jack (approach stroke, useful stroke amplitude, ascent) is also controlled by the microcomputer 5. It is thus possible to deliver into a mixing crucible 19, a determined and precise quantity of each component present in the compartments in the form of paste or gel.
Le mélange de ce creuset est assuré par tout moyen connu, ici symbolisé par un agitateur relié à un moteur d'entraînement 20, lui-même commandé par le microordinateur 5. On notera que le mélange peut être réalisé par secouage du creuset en forme de conteneur amovible qui peut constituer alors une cartouche transférable dans une seringue d'injection. The mixing of this crucible is ensured by any known means, here symbolized by an agitator connected to a drive motor 20, itself controlled by the microcomputer 5. It will be noted that the mixing can be carried out by shaking the crucible in the form of removable container which can then constitute a cartridge which can be transferred to an injection syringe.
L'unité 5 de traitement possède un programme de calcul qui permet, à partir des données issues du spectrocolorimètre 1, de la quantité de matériau commandée par le praticien et des caractéristiques colorimètriques des composants du matériau présents dans le distributeur et préalablement enregistrées, de déterminer le nombre et la quantité des composants qu'il convient de mélanger pour obtenir le matériau de reconstitution de la même teinte que celle analysée et en quantité suffisante. Ce matériau, placé en bouche par le praticien, est conformé de manière adéquate et est ensuite polymérisé au moyen d'un rayonnement approprié, ce de manière connue. The processing unit 5 has a calculation program which makes it possible, on the basis of data from the spectrocolorimeter 1, of the quantity of material ordered by the practitioner and of the colorimetric characteristics of the components of the material present in the dispenser and previously recorded, to determine the number and quantity of the components that should be mixed to obtain the reconstitution material of the same shade as that analyzed and in sufficient quantity. This material, placed in the mouth by the practitioner, is adequately shaped and is then polymerized by means of appropriate radiation, in a known manner.
Le programme de l'unité de calcul peut être suffisamment développé pour permettre de procéder aux opérations suivantes. The program of the calculation unit can be sufficiently developed to allow the following operations to be carried out.
On sait que la couleur d'une dent résulte, en un point précis, de la superposition de la couleur de la dentine (jaune) et de celle de l'émail (blanc translucide). Cette couleur est variable de la racine à la pointe de la dent car elle dépend de l'épaisseur de la couche d'émail qui, fine vers le collet, laisse transparaître la couleur de la dentine pour la masquer de plus en plus (et la blanchir) en direction de la pointe de la dent. We know that the color of a tooth results, at a precise point, from the superimposition of the color of the dentin (yellow) and that of the enamel (translucent white). This color is variable from the root to the tip of the tooth because it depends on the thickness of the enamel layer which, thin towards the collar, lets the color of the dentin show through to mask it more and more (and the whiten) towards the tip of the tooth.
Il est donc possible avec le spectrocolorimètre, de relever les caractéristiques de la couleur de la dentine au niveau du collet et de celle de l'émail au niveau de la pointe de la dent. L'ordinateur peut alors, en fonction d'un relevé topographique d'une dent symétrique de celle à reconstituer, reconstituer les variations de teinte de la dent. Il peut également, s'il possède dans son programme des modèles de dents, déterminer en fonction de la zone de la dent, l'épaisseur de la couche d'émail recouvrant la dentine et sa variation le long de la dent. Il peut enfin proposer un programme de restructuration en deux phases, l'une concernant la dentine et l'autre concernant l'émail. Si ce projet est accepté par le praticien, il prépare les matériaux nécessaires à la réalisation de ces deux phases. It is therefore possible with the spectrocolorimeter, to note the characteristics of the color of the dentine at the level of the collar and that of the enamel at the level of the tip of the tooth. The computer can then, according to a topographical survey of a tooth symmetrical with that to be reconstructed, reconstruct the variations in shade of the tooth. He can also, if he has teeth models in his program, determine according to the area of the tooth, the thickness of the enamel layer covering the dentin and its variation along the tooth. Finally, it can propose a restructuring program in two phases, one concerning dentin and the other concerning enamel. If this project is accepted by the practitioner, he prepares the materials necessary for carrying out these two phases.
On comprend que l'invention est applicable également dans le domaine de la réalisation de prothèses à l'extérieur du cabinet dentaire. It is understood that the invention is also applicable in the field of the production of prostheses outside the dental office.
Claims (2)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9014768A FR2669526B1 (en) | 1990-11-26 | 1990-11-26 | DEVICE FOR PREPARING A DEFINED QUANTITY OF A DENTAL RESTORATION MATERIAL. |
| PCT/FR1992/000464 WO1993024074A1 (en) | 1990-11-26 | 1992-05-25 | Device for the preparation of a given quantity of a dental restoration material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9014768A FR2669526B1 (en) | 1990-11-26 | 1990-11-26 | DEVICE FOR PREPARING A DEFINED QUANTITY OF A DENTAL RESTORATION MATERIAL. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2669526A1 true FR2669526A1 (en) | 1992-05-29 |
| FR2669526B1 FR2669526B1 (en) | 1993-02-19 |
Family
ID=9402604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9014768A Expired - Fee Related FR2669526B1 (en) | 1990-11-26 | 1990-11-26 | DEVICE FOR PREPARING A DEFINED QUANTITY OF A DENTAL RESTORATION MATERIAL. |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2669526B1 (en) |
| WO (1) | WO1993024074A1 (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591958A1 (en) * | 1992-10-07 | 1994-04-13 | Neil Rex Hall | Dental colour mixture indicator device |
| WO1995005892A1 (en) * | 1993-08-23 | 1995-03-02 | Unilever Plc | Method and apparatus for customising facial foundation products |
| US5759030A (en) * | 1996-01-02 | 1998-06-02 | Lj Laboratories, L.L.C. | Method for determing optical characteristics of teeth |
| EP0871022A2 (en) * | 1997-03-19 | 1998-10-14 | Unilever Plc | A method for customizing dermatological foundation products |
| US6008905A (en) * | 1998-12-22 | 1999-12-28 | Deus Ex Machina Inc. | Method and apparatus for determining the appearance of an object |
| US6030209A (en) * | 1997-10-15 | 2000-02-29 | Jeneric/Pentron Incorporated | Method for accurately preparing the color of a dental restoration |
| US6118521A (en) * | 1996-01-02 | 2000-09-12 | Lj Laboratories, L.L.C. | Apparatus and method for measuring optical characteristics of an object |
| US6239868B1 (en) | 1996-01-02 | 2001-05-29 | Lj Laboratories, L.L.C. | Apparatus and method for measuring optical characteristics of an object |
| US6246479B1 (en) | 1998-06-08 | 2001-06-12 | Lj Laboratories, L.L.C. | Integrated spectrometer assembly and methods |
| US6246471B1 (en) | 1998-06-08 | 2001-06-12 | Lj Laboratories, Llc | Apparatus and method for measuring optical characteristics of an object |
| US6249348B1 (en) | 1998-11-23 | 2001-06-19 | Lj Laboratories, L.L.C. | Integrated spectrometer assembly and methods |
| US6249339B1 (en) | 1997-07-01 | 2001-06-19 | Lj Laboratories, Llc | Method and apparatus for detecting and preventing counterfeiting |
| US6249340B1 (en) | 1997-07-01 | 2001-06-19 | Lj Laboratories, L.L.C. | Apparatus and method for measuring optical characteristics of an object |
| US6254385B1 (en) | 1997-01-02 | 2001-07-03 | Lj Laboratories, Llc | Apparatus and method for measuring optical characteristics of teeth |
| EP1252867A1 (en) * | 2001-04-23 | 2002-10-30 | Cicero Dental Systems B.V. | Method for production of an artificial tooth |
| ITMO20080218A1 (en) * | 2008-08-08 | 2010-02-09 | Dorotea Lucchese | TINTING PROCEDURE FOR THE PRODUCTION OF SERIGRAPHY DYES FOR CERAMIC MANUFACTURED ITEMS, PARTICULARLY TILES, TILES, SHEETS AND THE LIKE, AND ITS RELATED SYSTEM |
| WO2020175996A1 (en) * | 2019-02-28 | 2020-09-03 | Gratitude Holding B.V. | Method and device for providing ingredient data for a prosthesis |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6373573B1 (en) | 2000-03-13 | 2002-04-16 | Lj Laboratories L.L.C. | Apparatus for measuring optical characteristics of a substrate and pigments applied thereto |
| US6307629B1 (en) | 1997-08-12 | 2001-10-23 | Lj Laboratories, L.L.C. | Apparatus and method for measuring optical characteristics of an object |
| US6233047B1 (en) | 1997-01-02 | 2001-05-15 | Lj Laboratories, L.L.C. | Apparatus and method for measuring optical characteristics of an object |
| US6301004B1 (en) | 2000-05-31 | 2001-10-09 | Lj Laboratories, L.L.C. | Apparatus and method for measuring optical characteristics of an object |
| US6501542B2 (en) | 1998-06-30 | 2002-12-31 | Lj Laboratories, Llc | Apparatus and method for measuring optical characteristics of an object |
| US6449041B1 (en) | 1997-07-01 | 2002-09-10 | Lj Laboratories, Llc | Apparatus and method for measuring optical characteristics of an object |
| US6271913B1 (en) | 1997-07-01 | 2001-08-07 | Lj Laboratories, Llc | Apparatus and method for measuring optical characteristics of an object |
| US6573984B2 (en) | 1998-06-30 | 2003-06-03 | Lj Laboratories Llc | Apparatus and method for measuring optical characteristics of teeth |
| US6538726B2 (en) | 1998-07-10 | 2003-03-25 | Lj Laboratories, Llc | Apparatus and method for measuring optical characteristics of an object |
| DE60021417T2 (en) | 1999-12-08 | 2006-05-24 | X-Rite, Inc., Grandville | Optical measuring device |
| US6362888B1 (en) | 1999-12-23 | 2002-03-26 | Lj Laboratories, L.L.C. | Spectrometer assembly |
| US6519037B2 (en) | 1999-12-23 | 2003-02-11 | Lj Laboratories, Llc | Spectrometer having optical unit including a randomized fiber optic implement |
| US6414750B2 (en) | 2000-01-10 | 2002-07-02 | Lj Laboratories, L.L.C. | Spectrometric apparatus and method for measuring optical characteristics of an object |
| WO2024064611A1 (en) * | 2022-09-20 | 2024-03-28 | Daniel Henry | Custom shade composite mixing system for dentistry |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3601589A (en) * | 1969-09-19 | 1971-08-24 | Mobil Oil | Process and apparatus for producing colored chemical coatings |
| FR2188157A1 (en) * | 1972-06-01 | 1974-01-18 | Swinson William E | |
| US4403866A (en) * | 1982-05-07 | 1983-09-13 | E. I. Du Pont De Nemours And Company | Process for making paints |
| EP0360657A1 (en) * | 1988-09-09 | 1990-03-28 | Bertin & Cie | Method for determining the colour of an object, particularly of a dental prosthesis |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2631770A1 (en) * | 1976-07-15 | 1978-01-19 | Sterndent Corp | Digital indicating colorimeter for colour matching in dentistry - has photoelectric detectors sensing at least two component colours of reflected light |
-
1990
- 1990-11-26 FR FR9014768A patent/FR2669526B1/en not_active Expired - Fee Related
-
1992
- 1992-05-25 WO PCT/FR1992/000464 patent/WO1993024074A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3601589A (en) * | 1969-09-19 | 1971-08-24 | Mobil Oil | Process and apparatus for producing colored chemical coatings |
| FR2188157A1 (en) * | 1972-06-01 | 1974-01-18 | Swinson William E | |
| US4403866A (en) * | 1982-05-07 | 1983-09-13 | E. I. Du Pont De Nemours And Company | Process for making paints |
| EP0360657A1 (en) * | 1988-09-09 | 1990-03-28 | Bertin & Cie | Method for determining the colour of an object, particularly of a dental prosthesis |
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| EP0591958A1 (en) * | 1992-10-07 | 1994-04-13 | Neil Rex Hall | Dental colour mixture indicator device |
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| US5622692A (en) * | 1993-08-23 | 1997-04-22 | Elizabeth Arden Company, Division Of Conopco, Inc. | Method and apparatus for customizing facial foundation products |
| US6118521A (en) * | 1996-01-02 | 2000-09-12 | Lj Laboratories, L.L.C. | Apparatus and method for measuring optical characteristics of an object |
| US5759030A (en) * | 1996-01-02 | 1998-06-02 | Lj Laboratories, L.L.C. | Method for determing optical characteristics of teeth |
| US6239868B1 (en) | 1996-01-02 | 2001-05-29 | Lj Laboratories, L.L.C. | Apparatus and method for measuring optical characteristics of an object |
| US6254385B1 (en) | 1997-01-02 | 2001-07-03 | Lj Laboratories, Llc | Apparatus and method for measuring optical characteristics of teeth |
| EP0871022A2 (en) * | 1997-03-19 | 1998-10-14 | Unilever Plc | A method for customizing dermatological foundation products |
| EP0871022A3 (en) * | 1997-03-19 | 1999-09-01 | Unilever Plc | A method for customizing dermatological foundation products |
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| US6249340B1 (en) | 1997-07-01 | 2001-06-19 | Lj Laboratories, L.L.C. | Apparatus and method for measuring optical characteristics of an object |
| US6030209A (en) * | 1997-10-15 | 2000-02-29 | Jeneric/Pentron Incorporated | Method for accurately preparing the color of a dental restoration |
| US6246471B1 (en) | 1998-06-08 | 2001-06-12 | Lj Laboratories, Llc | Apparatus and method for measuring optical characteristics of an object |
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| US6249348B1 (en) | 1998-11-23 | 2001-06-19 | Lj Laboratories, L.L.C. | Integrated spectrometer assembly and methods |
| US6008905A (en) * | 1998-12-22 | 1999-12-28 | Deus Ex Machina Inc. | Method and apparatus for determining the appearance of an object |
| EP1252867A1 (en) * | 2001-04-23 | 2002-10-30 | Cicero Dental Systems B.V. | Method for production of an artificial tooth |
| WO2002085241A1 (en) * | 2001-04-23 | 2002-10-31 | Cicero Dental Systems B.V. | Method for production of an artificial tooth |
| US7086863B2 (en) | 2001-04-23 | 2006-08-08 | Cicero Dental Systems, B.V. | Method for production of an artificial tooth |
| AU2002307636B2 (en) * | 2001-04-23 | 2006-08-10 | Cicero Dental Systems B.V. | Method for production of an artificial tooth |
| ITMO20080218A1 (en) * | 2008-08-08 | 2010-02-09 | Dorotea Lucchese | TINTING PROCEDURE FOR THE PRODUCTION OF SERIGRAPHY DYES FOR CERAMIC MANUFACTURED ITEMS, PARTICULARLY TILES, TILES, SHEETS AND THE LIKE, AND ITS RELATED SYSTEM |
| WO2020175996A1 (en) * | 2019-02-28 | 2020-09-03 | Gratitude Holding B.V. | Method and device for providing ingredient data for a prosthesis |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2669526B1 (en) | 1993-02-19 |
| WO1993024074A1 (en) | 1993-12-09 |
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