WO1991004713A1 - Device for tracing a removable partial dental plate - Google Patents

Device for tracing a removable partial dental plate Download PDF

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Publication number
WO1991004713A1
WO1991004713A1 PCT/FR1990/000690 FR9000690W WO9104713A1 WO 1991004713 A1 WO1991004713 A1 WO 1991004713A1 FR 9000690 W FR9000690 W FR 9000690W WO 9104713 A1 WO9104713 A1 WO 9104713A1
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WO
WIPO (PCT)
Prior art keywords
patient
hand
calculation means
plate
positioning
Prior art date
Application number
PCT/FR1990/000690
Other languages
French (fr)
Inventor
Gérard JOURDA
Jean Gaillard
Original Assignee
Jourda Gerard
Jean Gaillard
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 Jourda Gerard, Jean Gaillard filed Critical Jourda Gerard
Publication of WO1991004713A1 publication Critical patent/WO1991004713A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/04—Measuring instruments specially adapted for dentistry

Definitions

  • the present invention relates to a device for establishing the layout of a removable partial dental plaque.
  • partial dental plaque is meant within the meaning of the invention and of the claims a dental plaque intended to be removably fixed on at least two teeth still present - in one of the two arches of the mouth of a patient .
  • the removable partial dental plates are produced from a path obtained from an impression of the arch of the mouth of the patient.
  • the layout of the plate itself is normally performed by the practitioner according to the clinical and physiological data of the arch considered.
  • practitioners are less and less able to perform this tracing and generally leave this care to prosthetists.
  • This presupposes the use of highly qualified personnel, taking into account the objectives for the layout of the plaque.
  • objectives mainly boil down to a perfect morphological adaptation to the mouth of the patient on the one hand and on the other hand to an effective maintenance of said dental plaque on the teeth remaining in place in the mouth of the patient, this maintenance leaving however possible the 'Removability of said dental plaque, in particular for cleaning.
  • the present invention aims to propose a device capable of allowing any non-specialist practitioner to make traces of removable dental plates, more economical in their production on the one hand and on the other hand better adapted from the morphological point of view.
  • the device for establishing the layout of a removable partial dental plaque in accordance with the invention is characterized in that it comprises:
  • a calculation means for recurrently determining the theoretical ideal layout of the removable dental plaque as a function of the positioning of the teeth still in place, introduced during the previous step, and on the other hand of the ranges of physiological values previously introduced into said calculating means;
  • the present invention is characterized in that a data entry installation is provided, in this case the teeth still remaining in the mouth of the patient, with a calculating organ capable according to criteria. pre-established to deliver instantaneously a theoretical tracing of dental plaque, which only needs to be adapted according to the clinical particularities of a patient.
  • the means for displaying the positioning of the teeth still in place in the mouth of the patient consists of a screen on which a cursor is capable of moving, a screen associated with a microcomputer and with a validation, validating the data according to the position of the cursor.
  • the calculation means intended to determine the ideal theoretical course and the final theoretical course of the dental plaque are constituted by a microcomputer whose operating steps are dictated by suitable software.
  • the means for introducing clinical features of a patient consists of a keyboard associated with said microcomputer.
  • the ranges of physiological values introduced into the calculation means intended to determine the theoretical ideal tracer of the plate relate respectively to the hooks for fixing the plate, the hair pins intended to secure the plate to the saddle for positioning the teeth, the characteristics dimensions of the saddle itself and the curvature of the plate.
  • Figure 1 is a schematic view of a dental plate in place, produced according to the technique known as "cushioned chassis”.
  • Figure 2 is also a schematic view of a dental plaque in place, produced according to the so-called KENNEDY technique, APPLEGATE.
  • Figure 3 is a simplified diagram of the device according to the invention.
  • the dental plaque bearing the general reference (1) consists of several elements.
  • the dental plaque is maintained on the teeth. still remaining in the patient's mouth, and bearing the references (3) to (6) by hooks (7) and supports (8) by means of brackets (9).
  • These various elements, namely hooks, supports and brackets are made of an alloy based on cobalt, nickel and chromium, of course non-toxic.
  • the artificial teeth are positioned on a saddle (10) connected to the dental plate (2) by means of a hairpin (11) also made of the same cobalt, nieke1, chromine alloy.
  • the way in which the brackets (9) and the hairpin (11) are connected to the dental plate (2), as well as the positioning of the support points of the hooks are the subject of physio forks.
  • ⁇ particular logic intended on the one hand to allow a better morphological adaptation of the dental plaque to the morphology of the patient's mouth and on the other hand to better reversible maintenance of said plaque on the remaining teeth.
  • a practitioner when a practitioner wishes to carry out the drawing of a dental plaque of a determined patient, he first of all proceeds to the survey of the different teeth remaining in place in the arch considered from the mouth of the patient. It is provided with a microcomputer (17) with which is associated a screen (15) displaying a complete arch, that is to say sixteen teeth.
  • This screen is associated with a validation body (16), in the case of species a mouse associated with cursor (19) moving on the screen according to the practitioner's wish. The practitioner can move the cursor (19) s the missing teeth and proceeds to validation (16), for example by pressing the button of said validation member, in order to enter the positioning of the teeth in the memory of the microcomputer (17). remaining.
  • This microcomputer includes a microcomputer managed by specialized software and suitable for tracing dental plaque.
  • This software allows the restitutio in particular on the screen of the tracing of a dental plaque and function on the one hand of the data introduced by the practitioner concerning the different teeth remaining in the mouth of the patient, and on the other hand according to physiological ranges mentioned above, forming an integral part of the software data. It should be noted that in addition to the physiological ranges already mentioned, these also relate to the dimensional characteristics of the saddle and the curvature of the dental plaque itself.
  • the microcomputer (17) restores a new theoretical tracing, final this time, of the dental plaque intended to be then routed to a prosthetist able to effectively re-use this dental plaque.
  • This restitution is materialized either on the screen (15) itself by the printer (20).
  • the practitioner introduces clinical particularities for example by means of a keyboard (18) associated with the microcomputer by means of pre-established codes or in a language specific to the software.
  • the microprocessor of the latter recursively performs a precise calculation of the different characteristics. dental plaque and its various associated elements, including hooks, supports, brackets, hairpins and stools. In this way, it only remains for the dental technician to scrupulously respect the various indications provided by the microcomputer in order to produce a dental plaque which adapts perfectly to the patient's mouth.
  • FIG. 2 shows a removable dental plate, produced according to the KENNEDY-APPLEGATE technique, with the device according to the invention.

Abstract

Device for tracing a removable partial dental plate characterized in that it is comprised of: means for displaying (15, 16, 19) the positioning of the teeth still in place in the mouth of the patient; calculation means (17) for the recurrent determination of the theoretical ideal tracing of the removable dental plate as a function, on the one hand, of the positioning of the teeth still in place, inputted during the preceding step, and on the other hand, brackets of physiological values previously inputted into said calculation means; input means (18) for introducing clinical particularisms proper to the mouth of the patient being treated; calculation means (17) for plotting the final theoretical tracing of the plate as a function, on the one hand, of the clinical particularisms and, on the other hand, of the physiological brackets of values.

Description

DISPOSITIF POUR ETABLIR LE TRACE D'UNE PLAQUE DENTAIR PARTIELLE AMOVIBLE DEVICE FOR ESTABLISHING THE TRACE OF A REMOVABLE PARTIAL DENTAIR PLATE
La présente invention concerne un dispositif pour établir le tracé d'une plaque dentaire partielle amovible.The present invention relates to a device for establishing the layout of a removable partial dental plaque.
Par "plaque dentaire partielle", on entend au sens de l'invention et des revendications une plaque dentaire destinée à être fixée de manière amovible sur au moins deux dents encore présentes -dans l'une des deux arcades de la bouche d'un patient.By "partial dental plaque" is meant within the meaning of the invention and of the claims a dental plaque intended to be removably fixed on at least two teeth still present - in one of the two arches of the mouth of a patient .
A ce jour, les plaques dentaires partielles amovibles sont réalisées à partir d'un tracé obtenu à partir d'une empreinte de l'arcade de la bouche du pa¬ tient. Le tracé de la plaque proprement dite est norma¬ lement réalisé par le praticien en fonction des données cliniques et physiologiques de l'arcade considérée. Toutefois, les praticiens sont de moins en moins capables d'effectuer ce tracé et laissent généralement ce soin aux prothésistes. Cela suppose l'emploi d'un personnel très qualifié compte tenu des objectifs visés pour le tracé de la plaque. Ces objectifs se résument principalement à une parfaite adaptation morphologique à la bouche du patient d'une part et d'autre part à un maintien efficacec de ladite plaque dentaire sur les dents restant en place dans la bouche du patient, ce maintien laissant toutefois possible l'amovibilité de ladite plaque dentaire, notamment en vue de son nettoyage.To date, the removable partial dental plates are produced from a path obtained from an impression of the arch of the mouth of the patient. The layout of the plate itself is normally performed by the practitioner according to the clinical and physiological data of the arch considered. However, practitioners are less and less able to perform this tracing and generally leave this care to prosthetists. This presupposes the use of highly qualified personnel, taking into account the objectives for the layout of the plaque. These objectives mainly boil down to a perfect morphological adaptation to the mouth of the patient on the one hand and on the other hand to an effective maintenance of said dental plaque on the teeth remaining in place in the mouth of the patient, this maintenance leaving however possible the 'Removability of said dental plaque, in particular for cleaning.
La présente invention vise à proposer un dispositif apte à permettre à tout praticien non spécialiste de réaliser des tracés de plaques dentaires amovibles, plus économiques dans leur réalisation d'une part et d'autre part mieux adaptés du point de vue morphologique. Le dispositif pour établir le tracé d'une plaque dentaire partielle amovible conforme à l'invention se caractérise en ce qu'il comprend :The present invention aims to propose a device capable of allowing any non-specialist practitioner to make traces of removable dental plates, more economical in their production on the one hand and on the other hand better adapted from the morphological point of view. The device for establishing the layout of a removable partial dental plaque in accordance with the invention is characterized in that it comprises:
- des moyens pour afficher le positionnement des dents encore en place dans la bouche du patient ;- Means for displaying the positioning of the teeth still in place in the mouth of the patient;
- un moyen de calcul pour déterminer de manière récurrente le tracé idéal théorique de la plaque dentaire amovible en fonction d'une part du positionnement des dents encore en place, introduit au cours de l'étape précédente, et d'autre part de fourchettes de valeurs physiologiques introduites préalablement dans ledit moyen de calcul ;a calculation means for recurrently determining the theoretical ideal layout of the removable dental plaque as a function of the positioning of the teeth still in place, introduced during the previous step, and on the other hand of the ranges of physiological values previously introduced into said calculating means;
- des moyens d'introduction de particularismes cliniques propres à la bouche du patient en cours de traitement ;- means for introducing clinical features specific to the patient's mouth during treatment;
- un moyen de calcul pour restituer le tracé théorique final de la plaque en fonction d'une part de ces particularismes cliniques et d'autre part des fourchettes physiologiques.- a means of calculation to restore the final theoretical plot of the plate based on the one hand on these clinical particularities and on the other hand physiological ranges.
En d'autres termes, la présente invention se caractérise en ce que l'on munit une installation de saisie de données, en l'occurence les dents restant encore dans la bouche du patient, d'un organe de calcul apte en fonction de critères pré-établis à délivrer de façon instantanée un tracé théorique de plaque dentaire, qui ne demande plus qu'à être adapté en fonction des particularismes cliniques d'un patient.In other words, the present invention is characterized in that a data entry installation is provided, in this case the teeth still remaining in the mouth of the patient, with a calculating organ capable according to criteria. pre-established to deliver instantaneously a theoretical tracing of dental plaque, which only needs to be adapted according to the clinical particularities of a patient.
Dans une forme de réalisation avantageuse, le moyen pour afficher le positionnement des dents encore en place dans la bouche du patient est constitué par un écran sur lequel est susceptible de se déplacer un curseur, écran associé à un micro-ordinateur et à un organe de validation, validant les données en fonction de la position du curseur. Dans une autre forme de réalisation, le moyen d calcul destiné à déterminer le tracé idéal théorique e le tracé théorique final de la plaque dentaire es constitué par un micro-ordinateur dont les étapes d fonctionnement sont dictées par un logiciel adapté.In an advantageous embodiment, the means for displaying the positioning of the teeth still in place in the mouth of the patient consists of a screen on which a cursor is capable of moving, a screen associated with a microcomputer and with a validation, validating the data according to the position of the cursor. In another embodiment, the calculation means intended to determine the ideal theoretical course and the final theoretical course of the dental plaque are constituted by a microcomputer whose operating steps are dictated by suitable software.
Selon l'invention, le moyen d'introduction de particularismes cliniques d'un patient est constitué pa un clavier associé audit micro-ordinateur.According to the invention, the means for introducing clinical features of a patient consists of a keyboard associated with said microcomputer.
Les fourchettes de valeurs physiologiques introdui tes dans le moyen de calcul destiné à déterminer le trac idéal théorique de la plaque concernent respectivemen les crochets de fixation de la plaque, les épingles cheveux destinées à solidariser la plaque à la selle d positionnement des dents, les caractéristiques dimension nelles de la selle elle-même et la courbure de la plaque.The ranges of physiological values introduced into the calculation means intended to determine the theoretical ideal tracer of the plate relate respectively to the hooks for fixing the plate, the hair pins intended to secure the plate to the saddle for positioning the teeth, the characteristics dimensions of the saddle itself and the curvature of the plate.
La manière dont l'invention peut être réalisée, e les avantages qui en découlent ressortiront mieux d l'exemple de réalisation qui suit donné à titre indicatif et non limitatif à l'appui des figures annexées.The manner in which the invention can be implemented, and the advantages which ensue therefrom will emerge more clearly from the example of embodiment which follows, given by way of indication and without limitation in support of the appended figures.
La figure 1 est une vue schématique d'une plaque dentaire en place, réalisée selon la technique dite du "châssis amorti".Figure 1 is a schematic view of a dental plate in place, produced according to the technique known as "cushioned chassis".
La figure 2 est également une vue schématique d'une plaque dentaire en place, réalisée selon la technique dite de KENNEDY, APPLEGATE. La figure 3 est un schéma simplifié du dispositif conforme à l'invention.Figure 2 is also a schematic view of a dental plaque in place, produced according to the so-called KENNEDY technique, APPLEGATE. Figure 3 is a simplified diagram of the device according to the invention.
Selon l'invention, et conformément à la représenta¬ tion de la figure 1, la plaque dentaire portant la réfé- rence générale (1) est constituée de plusieurs éléments. Outre la plaque dentaire proprement dite portant la réfé¬ rence générale (2) et destinée à épouser la morphologie du palais, qu'il s'agisse de l'arcade inférieure ou de l'arcade supérieure, la plaque dentaire est maintenue sur les dents restant encore dans la bouche du patient, et portant les références (3) à (6) par des crochets (7) et des appuis (8) par 1'intermédiaire de potences (9) . Ces différents éléments à savoir crochets, appuis et potences sont réalisés en alliage à base de cobalt, nickel et chrome, bien entendu non toxiques.According to the invention, and in accordance with the representation of FIG. 1, the dental plaque bearing the general reference (1) consists of several elements. In addition to the actual dental plaque bearing the general reference (2) and intended to match the morphology of the palate, whether it is the lower arch or the upper arch, the dental plaque is maintained on the teeth. still remaining in the patient's mouth, and bearing the references (3) to (6) by hooks (7) and supports (8) by means of brackets (9). These various elements, namely hooks, supports and brackets are made of an alloy based on cobalt, nickel and chromium, of course non-toxic.
Les dents artificielles, donc manquantes, sont positionnées sur une selle (10) reliée à la plaque dentaire (2) par l'intermédiaire d'une épingle à cheveux (11) également réalisée dans le même alliage cobalt, nieke1, chrorne.The artificial teeth, therefore missing, are positioned on a saddle (10) connected to the dental plate (2) by means of a hairpin (11) also made of the same cobalt, nieke1, chromine alloy.
Selon l'invention, la manière dont sont reliées les potences (9) et l'épingle à cheveux (11) à la plaque dentaire (2), ainsi que le positionnement des points d'appui des crochets font l'objet de fourchettes physio¬ logiques particulières, destinées d'une part à permettre une meilleure adaptation morphologique de la plaque dentaire à la morphologie de la bouche du patient et d'autre part à un meilleur maintien réversible de ladite plaque sur les dents restantes.According to the invention, the way in which the brackets (9) and the hairpin (11) are connected to the dental plate (2), as well as the positioning of the support points of the hooks are the subject of physio forks. ¬ particular logic, intended on the one hand to allow a better morphological adaptation of the dental plaque to the morphology of the patient's mouth and on the other hand to better reversible maintenance of said plaque on the remaining teeth.
Selon la présente invention, lorsqu'un praticien désire procéder à la réalisation d'un tracé de plaque dentaire d'un patient déterminé, il procède tout d'abord au relevé des différentes dents restant en place dans l'arcade considérée de la bouche du patient. Il est muni d'un micro-ordinateur (17) auquel est associé un écran (15) visualisant une arcade complète, c'est-à-dire seize dents. Cet écran est associé à un organe de validation (16), dans le cas d'espèces une souris associée à curseur (19) se déplaçant sur l'écran selon le souhait praticien. Le praticien peut déplacer le curseur (19) s les dents manquantes et procède à la validation (16), p exemple par simple pression du bouton dudit organe validation, afin d'introduire dans la mémoire du micr ordinateur (17) le positionnement des dents restantes.According to the present invention, when a practitioner wishes to carry out the drawing of a dental plaque of a determined patient, he first of all proceeds to the survey of the different teeth remaining in place in the arch considered from the mouth of the patient. It is provided with a microcomputer (17) with which is associated a screen (15) displaying a complete arch, that is to say sixteen teeth. This screen is associated with a validation body (16), in the case of species a mouse associated with cursor (19) moving on the screen according to the practitioner's wish. The practitioner can move the cursor (19) s the missing teeth and proceeds to validation (16), for example by pressing the button of said validation member, in order to enter the positioning of the teeth in the memory of the microcomputer (17). remaining.
Ce micro-ordinateur comprend un micro-processe géré par un logiciel spécialisé et adapté au tracé plaque dentaire. Ce logiciel permet la restitutio notamment à l'écran du tracé d'une plaque dentaire e fonction d'une part des données introduites par l praticien concernant les différentes dents restantes dan la bouche du patient, et d'autre part en fonction de fourchettes physiologiques sus-mentionnées, faisant par tie intégrante des données du logiciel. Il est à note que outre les fourchettes physiologiques déjà men tionnées, celles-ci concernent également les caractéris tiques dimensionnelles de la selle et la courbure de l plaque dentaire elle-même.This microcomputer includes a microcomputer managed by specialized software and suitable for tracing dental plaque. This software allows the restitutio in particular on the screen of the tracing of a dental plaque and function on the one hand of the data introduced by the practitioner concerning the different teeth remaining in the mouth of the patient, and on the other hand according to physiological ranges mentioned above, forming an integral part of the software data. It should be noted that in addition to the physiological ranges already mentioned, these also relate to the dimensional characteristics of the saddle and the curvature of the dental plaque itself.
Une fois ce tracé théorique restitué par le micro ordinateur, notamment sur l'écran (15), le praticie introduit certains particularismes cliniques propres chaque patient. Ces particularismes cliniques peuven être de natures différentes, telles que des dents restan en mauvais état .Once this theoretical trace restored by the microcomputer, in particular on the screen (15), the practice introduces certain clinical particularities specific to each patient. These clinical features can be of different natures, such as restan teeth in poor condition.
Ces particularismes cliniques étant introduits, e le tracé théorique précédent ayant été stocké en mémoire le micro-ordinateur (17) restitue un nouveau tracé théo rique, final cette fois, de la plaque dentaire destinée être ensuite acheminée chez un prothésiste apte à réa user effectivement cette plaque dentaire. Cett restitution est matérialisée soit sur l'écran (15) soi par l'imprimante (20). L'introduction des particularismes cliniques par le praticien s'effectue par exemple par un clavier (18) associé au micro-ordinateur au moyen de codes pré-établis ou suivant un langage propre au logiciel.These clinical particularities being introduced, e the previous theoretical tracing having been stored in memory the microcomputer (17) restores a new theoretical tracing, final this time, of the dental plaque intended to be then routed to a prosthetist able to effectively re-use this dental plaque. This restitution is materialized either on the screen (15) itself by the printer (20). The practitioner introduces clinical particularities for example by means of a keyboard (18) associated with the microcomputer by means of pre-established codes or in a language specific to the software.
Il va de soi qu'afin d'optimiser le rendu du tracé théorique de la plaque dentaire, un travail clinique préalable peut être effectué par le praticien en vue de consolider ou de supprimer certaines dents.It goes without saying that in order to optimize the rendering of the theoretical layout of the dental plaque, prior clinical work can be carried out by the practitioner with a view to consolidating or eliminating certain teeth.
De plus, en fonction des différentes données intro¬ duites par le praticien d'une part et d'autre part des fourchettes physiologiques stockées par les mémoires du micro-ordinateur, le microprocesseur de ce dernier effectue de manière récurrente un calcul précis des différentes caractéristiques de la plaque dentaire et de ses différents éléments associés, notamment crochets, appuis, potences, épingles à cheveux et selles. De la sorte, il ne reste plus au prothésiste qu'à respecter scrupuleusement les différentes indications fournies par le micro-ordinateur pour réaliser une plaque dentaire s'adaptant parfaitement à la bouche du patient.In addition, as a function of the different data entered by the practitioner on the one hand and on the other hand the physiological ranges stored by the memories of the microcomputer, the microprocessor of the latter recursively performs a precise calculation of the different characteristics. dental plaque and its various associated elements, including hooks, supports, brackets, hairpins and stools. In this way, it only remains for the dental technician to scrupulously respect the various indications provided by the microcomputer in order to produce a dental plaque which adapts perfectly to the patient's mouth.
Le dispositif conforme à la présente invention permet indiféremment de réaliser des plaques dentaires amovibles, selon la technique dite du châssis amorti, ou selon celle dite de KENNEDY - APPLEGATE. Le choix de l'une ou de l'autre de ces techniques appartient au pra¬ ticien. On a représenté en figure 2 une plaque dentaire amovible, réalisée selon la technique KENNEDY-APPLEGATE, avec le dispositif conforme à l'invention.The device in accordance with the present invention makes it possible to produce removable dental plates, according to the technique known as the cushioned chassis, or according to that known as KENNEDY - APPLEGATE. The choice of one or the other of these techniques belongs to the practitioner. FIG. 2 shows a removable dental plate, produced according to the KENNEDY-APPLEGATE technique, with the device according to the invention.
Il ressort de la présente invention des avantages fondamentaux par rapport à ce qui était connu de faire jusqu'alors. On peut notamment citer la possibilité pour tout praticien non spécialiste de prothèses de réalise des tracés de plaques dentaires tout à fait exploitable par un prothésiste afin de réaliser les plaques dentaire proprement dites. Il ressort donc de ce dispositif l moyen d'effectuer d'importantes économies et surtout d réaliser des gains de temps appréciables. It follows from the present invention fundamental advantages over what was known to do until then. We can notably cite the possibility for any practitioner who is not a specialist in prosthetics carries out tracings of dental plates which can be fully exploited by a prosthetist in order to produce the dental plates proper. It therefore emerges from this device the means of making significant savings and above all of achieving appreciable time savings.

Claims

REVENDICATIONS
1/ Dispositif pour établir le tracé d'une plaque dentaire partielle amovible caractérisé en ce qu'il comprend :1 / Device for establishing the layout of a removable partial dental plaque, characterized in that it comprises:
- des moyens pour afficher (15, 16, 19) le position¬ nement des dents encore en place dans la bouche du pa¬ tient ;- Means for displaying (15, 16, 19) the positioning of the teeth still in place in the mouth of the patient;
- un moyen de calcul (17) pour déterminer de manière récurrente le tracé idéal théorique de la plaque dentaire amovible en fonction d'une- part du positionnement des dents encore en place, introduit au cours de l'étape précédente, et d'autre part de fourchettes de valeurs physiologiques introduites préalablement dans ledit moyen de calcul ;- a calculation means (17) for recurrently determining the theoretical ideal layout of the removable dental plate as a function of the one hand of the positioning of the teeth still in place, introduced during the previous step, and on the other hand share of ranges of physiological values previously introduced into said calculation means;
- des moyens d'introduction (18) des particularismes cliniques propres à la bouche du patient en cours de traitement ;- Means for introducing (18) clinical features specific to the patient's mouth during treatment;
- un moyen de calcul (17) pour restituer le tracé théorique final de la plaque en fonction d'une part de ces particularismes cliniques et d'autre part des fourchettes physiologiques.- A calculation means (17) to restore the final theoretical plot of the plate as a function of these clinical particularities on the one hand and physiological ranges on the other.
2/ Dispositif selon la revendication 1, caractérisé en ce que le moyen pour afficher le positionnement des dents encore en place dans la bouche du patient est constitué par un écran (15) sur lequel se déplace un curseur (19) associé à un micro-ordinateur (17) et à un organe de validation (16) de données en fonction de la position dudit curseur (19).2 / Device according to claim 1, characterized in that the means for displaying the positioning of the teeth still in place in the mouth of the patient is constituted by a screen (15) on which a cursor (19) moves associated with a micro- computer (17) and to a data validation unit (16) according to the position of said cursor (19).
3/ Dispositif selon la revendication 1, caractérisé en ce que le moyen de calcul (17) pour déterminer le tracé idéal théorique et le tracé théorique final de la plaque est constitué par un micro-ordinateur dont les étapes de fonctionnement sont dictées par un logiciel adapté. 4/ Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le moyen d'introduction des par¬ ticularismes cliniques du patient est constitué par un clavier (18) associé à un micro-ordinateur.3 / Device according to claim 1, characterized in that the calculation means (17) for determining the ideal theoretical course and the final theoretical course of the plate is constituted by a microcomputer whose operating steps are dictated by software adapted. 4 / Device according to one of claims 1 to 3, characterized in that the means for introducing the patient's clinical features consists of a keyboard (18) associated with a microcomputer.
5/ Dispositif selon l'une des revendications précédentes caractérisé en ce que les fourchettes de valeurs physiologiques introduites dans le moyen de calcul destiné à déterminer le tracé idéal théorique de la plaque dentaire concerne les crochets de fixation de la plaque, les épingles à cheveux destinées à solidariser la plaque à la selle de positionnement des dents arti¬ ficielles, les caractéristiques dimensionnelles de la selle et la courbure de la plaque dentaire elle-même. 5 / Device according to one of the preceding claims characterized in that the ranges of physiological values introduced into the calculation means intended to determine the ideal theoretical course of the dental plaque relates to the hooks for fixing the plaque, the hairpins intended to secure the plate to the saddle for positioning the artificial teeth, the dimensional characteristics of the saddle and the curvature of the dental plate itself.
PCT/FR1990/000690 1989-09-26 1990-09-26 Device for tracing a removable partial dental plate WO1991004713A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR89/12814 1989-09-26
FR8912814A FR2652256A1 (en) 1989-09-26 1989-09-26 DEVICE FOR ESTABLISHING THE TRACE OF A REMOVABLE PARTIAL DENTAL PLATE.

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