FR2652256A1 - DEVICE FOR ESTABLISHING THE TRACE OF A REMOVABLE PARTIAL DENTAL PLATE. - Google Patents

DEVICE FOR ESTABLISHING THE TRACE OF A REMOVABLE PARTIAL DENTAL PLATE. Download PDF

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Publication number
FR2652256A1
FR2652256A1 FR8912814A FR8912814A FR2652256A1 FR 2652256 A1 FR2652256 A1 FR 2652256A1 FR 8912814 A FR8912814 A FR 8912814A FR 8912814 A FR8912814 A FR 8912814A FR 2652256 A1 FR2652256 A1 FR 2652256A1
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patient
hand
calculation means
mouth
positioning
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FR8912814A
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French (fr)
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Jourda Gerard
Gaillard Jean
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Individual
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Individual
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Priority to FR8912814A priority Critical patent/FR2652256A1/en
Priority to PCT/FR1990/000690 priority patent/WO1991004713A1/en
Publication of FR2652256A1 publication Critical patent/FR2652256A1/en
Pending legal-status Critical Current

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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
    • A61C19/04—Measuring instruments specially adapted for dentistry

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

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 patient. Le tracé de la plaque proprement dite est normalement réalisé par le praticien en fonction des données cliniques et physiologiques de l'arcade considérée. To date, the removable partial dental plates are produced from a path obtained from an impression of the arch of the patient's mouth. The layout of the plate itself is normally carried out by the practitioner according to the clinical and physiological data of the arch considered.

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.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 however leaving 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.  The present invention aims to provide 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.

Le dispositif pour établir le tracé d'une plaque dentaire partielle amovible conforme à l'invention se caractérise en ce qu'il comprend
- des moyens pour afficher le positionnement des dents encore en place dans la bouche du 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
- des moyens d'introduction de particularismes cliniques propres à la bouche du patient en cours de traitement
- 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.The device for establishing the layout of a removable partial dental plaque in accordance with the invention is characterized in that it comprises
means for displaying the positioning of the teeth still in place in the patient's mouth
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 physiological values previously introduced into said calculation means
- means of introducing specific clinical features to the patient's mouth during treatment
- a means of calculation to restore the final theoretical plot of the plate as a function on the one hand of these clinical particularities and on the other hand of the 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 patient's mouth, 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.  In an advantageous embodiment, the means for displaying the positioning of the teeth still in place in the patient's mouth consists of a screen on which a cursor can move, a screen associated with a microcomputer and with a validation, validating the data according to the position of the cursor.

Dans une autre forme de réalisation, le moyen de calcul destiné à déterminer le tracé idéal théorique et le tracé théorique final de la plaque dentaire est constitué par un micro-ordinateur dont les étapes de fonctionnement sont dictées par un logiciel adapté. In another embodiment, the calculation means intended to determine the ideal theoretical course and the final theoretical course of the dental plaque consists of a microcomputer, the operating steps of which are dictated by suitable software.

Selon l'invention, le moyen d'introduction des particularismes cliniques d'un patient est constitué par un clavier associé audit micro-ordinateur. According to the invention, the means for introducing the clinical particularities of a patient consists of a keyboard associated with said microcomputer.

Les fourchettes de valeurs physiologiques introduites dans le moyen de calcul destiné à déterminer le tracé idéal théorique de la plaque concernent respectivement les crochets de fixation de la plaque, les épingles à cheveux destinées à solidariser la plaque à la selle de positionnement des dents, les caractéristiques dimensionnelles 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 layout of the plate relate respectively to the hooks for fixing the plate, the hairpins 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, et les avantages qui en découlent ressortiront mieux de 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 "chassis amorti". Figure 1 is a schematic view of a dental plate in place, produced according to the technique called "cushioned chassis".

La figure 2 est également une vue schématique d'une plaque dentaire en place, réalisée selon la technique dite de KENNEDY, APPLEGATE. FIG. 2 is also a schematic view of a dental plaque in place, produced according to the so-called KENNEDY technique, APPLEGATE.

La figure 3 est un schéma simplifié du dispositif conforme à l'invention. Figure 3 is a simplified diagram of the device according to the invention.

Selon l'invention, et conformément à la représentation de la figure 1, la plaque dentaire portant la référence générale (1) est constituée de plusieurs éléments.  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.

Outre la plaque dentaire proprement dite portant la référence 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 l'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.In addition to the dental plaque proper 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, nickel, chrome. The artificial teeth, therefore missing, are positioned on a saddle (10) connected to the dental plate (2) via a hairpin (11) also made of the same alloy cobalt, nickel, chrome.

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 physiologiques 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 manner in which the brackets (9) and the hairpin (11) are connected to the dental plate (2), as well as. the positioning of the hook support points are subject to specific physiological ranges, intended firstly to allow better morphological adaptation of the dental plaque to the morphology of the patient's mouth and secondly to better support reversible of said plate 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 un curseur (19) se déplaçant sur l'écran selon le souhait du praticien. Le praticien peut déplacer le curseur (19) sur les dents manquantes et procède à la validation (16), par exemple par simple pression du bouton dudit organe de validation, afin d'introduire dans la mémoire du microordinateur (17) le positionnement des dents restantes. According to the present invention, when a practitioner wishes to carry out a tracing of dental plaque of a determined patient, he first of all proceeds to the survey of the various 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 member (16), in the case of species a mouse associated with a cursor (19) moving on the screen as desired by the practitioner. The practitioner can move the cursor (19) over the missing teeth and carry out 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-processeur géré par un logiciel spécialisé et adapté au tracé de plaque dentaire. Ce logiciel permet la restitution notamment à l'écran du tracé d'une plaque dentaire en fonction d'une part des données introduites par le praticien concernant les différentes dents restantes dans la bouche du patient, et d'autre part en fonction des fourchettes physiologiques sus-mentionnées, faisant partie intégrante des données du logiciel. il est à noter que outre les fourchettes physiologiques déjà mentionnées, celles-ci concernent également les caractéristiques dimensionnelles de la selle et la courbure de la plaque dentaire elle-même. This microcomputer includes a microprocessor managed by specialized software and suitable for tracing dental plaque. This software allows the restitution, in particular on the screen, of the layout of a dental plaque based on the one hand on the data entered by the practitioner concerning the different teeth remaining in the mouth of the patient, and on the other hand according to the physiological ranges 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 microordinateur, notamment sur l'écran (15), le praticien introduit certains particularismes cliniques propres à chaque patient. Ces particularismes cliniques peuvent être de natures différentes, telles que des dents restant en mauvais état
Ces particularismes cliniques étant introduits, et le tracé théorique précédent ayant été stocké en mémoire, le micro-ordinateur (17) restitue un nouveau tracé théorique, final cette fois, de la plaque dentaire destinée à être ensuite acheminée chez un prothésiste apte à réaliser effectivement cette plaque dentaire. Cette restitution est matérialisée soit sur l'écran (15) soit par l'imprimante (20r. Once this theoretical trace has been restored by the microcomputer, in particular on the screen (15), the practitioner introduces certain clinical particularities specific to each patient. These clinical features can be of different natures, such as teeth remaining in poor condition
These clinical particularities being introduced, and the previous theoretical trace having been stored in memory, the microcomputer (17) reproduces a new theoretical trace, final this time, of the dental plaque intended to be then routed to a prosthetist capable of effectively performing this dental plaque. This restitution is materialized either on the screen (15) or by the printer (20r.

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. 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 introduites 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 of the physiological ranges stored by the memories of the microcomputer, the microprocessor of the latter recursively performs a precise calculation of the different characteristics of the dental plaque and its various associated elements, in particular 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 that 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 chassis amorti, ou selon celle dite de KENNEDY - APPLEGATE. Le choix de l'une ou de l'autre de ces techniques appartient au praticien. 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 according to the present invention makes it possible either 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 réaliser des tracés de plaques dentaires tout à fait exploitables par un prothésiste afin de réaliser les plaques dentaires proprement dites. il ressort donc de ce dispositif le moyen d'effectuer d'importantes économies et surtout de réaliser des gains de temps appréciables.  It follows from the present invention fundamental advantages over what was known to do until then. Mention may in particular be made of the possibility for any practitioner who is not a specialist in prostheses to make tracings of dental plates which can be fully exploited by a prosthetist in order to produce the dental plates proper. it therefore appears from this device the means of making significant savings and above all of achieving appreciable time savings.

Claims (5)

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 positionnement des dents encore en place dans la bouche du patient ; - Means for displaying (15, 16, 19) the positioning of the teeth still in place in the patient's mouth; - un moyen de calcul (17) pour déterminer dé 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 recurring determination of 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 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 of introduction (18) of the clinical particularities specific to the mouth of the patient 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) for restoring the final theoretical plot of the plate as a function of these clinical particularities on the one hand and physiological ranges on the other hand. 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 patient's mouth 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.  3 / Device according to claim 1, characterized in that the calculation means (17) for determining the ideal theoretical path and the final theoretical path of the plate is constituted by a microcomputer whose operating steps are dictated by software adapted. 4/ Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le moyen d'introduction des particularismes cliniques du patient est constitué par un clavier (18) associé à un micro-ordinateur. 4 / Device according to one of claims 1 to 3, characterized in that the means for introducing the patient's clinical particularities 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 artificielles, 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.
FR8912814A 1989-09-26 1989-09-26 DEVICE FOR ESTABLISHING THE TRACE OF A REMOVABLE PARTIAL DENTAL PLATE. Pending FR2652256A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8912814A FR2652256A1 (en) 1989-09-26 1989-09-26 DEVICE FOR ESTABLISHING THE TRACE OF A REMOVABLE PARTIAL DENTAL PLATE.
PCT/FR1990/000690 WO1991004713A1 (en) 1989-09-26 1990-09-26 Device for tracing a removable partial dental plate

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FR8912814A FR2652256A1 (en) 1989-09-26 1989-09-26 DEVICE FOR ESTABLISHING THE TRACE OF A REMOVABLE PARTIAL DENTAL PLATE.

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