WO1997010771A1 - Variable geometry bimaxillary impression tray - Google Patents

Variable geometry bimaxillary impression tray Download PDF

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Publication number
WO1997010771A1
WO1997010771A1 PCT/FR1995/001198 FR9501198W WO9710771A1 WO 1997010771 A1 WO1997010771 A1 WO 1997010771A1 FR 9501198 W FR9501198 W FR 9501198W WO 9710771 A1 WO9710771 A1 WO 9710771A1
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WO
WIPO (PCT)
Prior art keywords
impression tray
slides
bimaxillary
external
impression
Prior art date
Application number
PCT/FR1995/001198
Other languages
French (fr)
Inventor
Bernard Nepault
Original Assignee
Bernard Nepault
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 Bernard Nepault filed Critical Bernard Nepault
Priority to PCT/FR1995/001198 priority Critical patent/WO1997010771A1/en
Publication of WO1997010771A1 publication Critical patent/WO1997010771A1/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
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/0006—Impression trays

Definitions

  • the bimaxillary impression tray with variable geometry is a device made up of a double body, the two parts of which are connected to each other by two slides to make global impressions.
  • This invention is intended to be used commonly in dental offices.
  • the present invention is a bimaxil ⁇ impression tray whose structural parts are secured by slides, aims to make an overall impression of the two maxillae (lower and upper arch) in a single maneuver.
  • the bimaxillary impression tray as it is designed does not allow to make a total impression of all the teeth of the two dental arches.
  • the bimaxillary impression tray has a function limited to the posterior teeth and unilaterally, ie for a hemic arch only.
  • the two blanks of the bima ⁇ xillary impression tray are connected by a very fine gauze so that the teeth come into contact when the patient bites in this case, the use is also limited, but here the anterior teeth up to about premolars, depending on the size and shape of the patient's mouth, because there is only one model.
  • the distance between the 1 and the 8, that is to say the length of a hemic arch is anatomically variable according to the individuals, or the distance in a traditional bimaxillary impression tray, between the anterior open part and the posterior part provided with a retromolar transverse bar connecting the two blanks of the impression tray is fixed, so that the bimaxilla impression tray adapts to the size of the maxilla, the practitioner moves the impression tray towards forward or backward, so that the crossbar is always located behind the posterior teeth (8 or 7) in order to.
  • the crossbar for li ⁇ aison of the blanks has been replaced by a fine gauze, which prevents the blocking described above, but we can only make half anterior impressions, because the impression tray is not enough rigid, because to do this the designers were forced to remove the internal blank which was replaced by a block of very flexible foam, which allows an approximate adaptation to the size of the dental arch, thus the imprint bimaxillary is not rigid enough to go from one end to the other of the maxilla (l to 8) and at the same time be filled and support the weight of the impression material, moreover to carry in the mouth this impression tray the practitioner must support it until it comes into contact with the lower teeth, so it is a completely approximate bimaxillary impression tray
  • the advantage of the present invention is to remedy the defects of the two systems described above, by taking into account this fundamental anatomical datum that the size of the dental arches varies with each patient, and even according to each patient depending on the blood supply arch considered (place and absence of the wisdom tooth).
  • the fixed dimension of the traditional bimaxillary impression tray although open has become variable in the present invention, it is a bimaxillary impression tray with variable size which will have these different parts maintained by the rear retromolarly, without hampering the iron. - resort,. exactly -.assemblePCT / FR95 / 01198 O 97/10771
  • the present invention initially defined for use in dental offices, consists of two parts:
  • a fixed double homothetic part provided with a handle, which constitutes the body of the bimaxillary impression tray, and a double and symmetrical mobile part, the slides.
  • the body fig 1 1 2 34 5 6
  • fig 1 1 2 34 5 6 consists of two blanks (2 3 fig Internal and external, and a handle (l).
  • the external blank of the present invention (2 figl) is shaped curved according to the profile and the height of the dental arch, taking into account that in the present invention there are three models of different size based on the same principle in order to adapt perfectly to the different maxillary, a single impression is described here, the structural elements being conceptually the same
  • a straight handle I l
  • the edges of the blank are sufficiently thick and rounded to not injure the oral mucosa.
  • this blank On the external parts of this blank are the sheaths (I 5) hollow appendages of square section in which the slides will slide (1 7 8 9 10) which we will describe by continued.
  • the fixed parts of the slides (I 5 6) are dou ⁇ ble and symmetrical on the external parts of each blank (I 2 3) and in the middle.
  • the internal blank 3) is of curved shape following the shape and the height of the maxilla but here on the internal or lingual side, therefore always smaller in curve than the external blank (I 2), also of sufficient and rounded thickness so as not to injure the oral mucosa; on the external parts of the internal blank (I 3) are the four ⁇ reaux, fixed parts of the slides (I 6) hollow appendages of square section in which the slides slide (1 7 8 9 10 ) which we will describe now.
  • the slides constitute the moving parts of the slides (I 5 6 7 8 9 10), these are made of a bar of square section of adequate size to slide in the -5- sheathsd 5 6), these slidersd 7 8 9 10) are curved on their rear part to then divide into three branches, an internal short branch, called internal slide (I 8) which slides in the internal sheath (I 6 ) and a long branch, inconvenienced slide 9) which slides in the embarrassedd sheath 6), these two slides 8 9) are linked together by a transverse slide (I 10) to form a kind of disometric and open parallelogram , the external sliders are terminated by a thread (I 4) onto which the handle of the couliseaud 7 is screwed in. This makes it possible to grasp the slide and make it cou ⁇ smooth while preventing the latter from escaping from its four ⁇ reau (I 5 or 6), this handle is of adequate shape so that the practitioner can grasp it between the thumb and forefinger.
  • the practitioner chooses the one that comes closest to the maxillae from which he must take the impression, this one chosen, the practitioner will place the empty impression tray in the mouth for fitting, ie not loaded with impression material, then the dentist will push the slides (I 7 8 9 10) so as to place the transverse slide (I 10) behind the last molars present in the patient's mouth, to to do the practitioner will hold the handle of the body (I l) in his left hand; and push the handle of the slide with his right hand, the impression tray thus adjusted does not hinder the closing of the jaws in occlusion; then the dentist will take the impression from the patient's mouth, then fill it with impression material and put it back in the mouth, being careful to tell the patient to put the teeth in close contact with each other. others, it will finally remove the impression tray from the mouth of the patient after the time necessary for taking the impression material.
  • the different parts of the imprint holder are removable in order to clean and sterilize it.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

An apparatus for producing bimaxillary impressions is described, which includes a dual body extended and simultaneously held by a movable portion comprising two sliding guides. The body has two curved parallel side portions, in the middle of which are the sliding guide sleeve portions, and the slides have three branches forming an open parallelogram which slides in the impression tray in order to adapt, in a retromolar position, to the size of each maxilla.

Description

Porte empreinte bimaxillaire à géométrie variable. Bimaxillary impression tray with variable geometry.
Le porte empreinte bimaxillaire à géométrie variable est un appareil composé d'un corps double,dont les deux parties sont reliées entre elles par deux glissières pour faire des empreintes globales.The bimaxillary impression tray with variable geometry is a device made up of a double body, the two parts of which are connected to each other by two slides to make global impressions.
Cette invention est destinée a être utilisée habituellement dans les cabinets dentaires.This invention is intended to be used commonly in dental offices.
La présente invention est un porte empreinte bimaxil¬ laire dont les parties structurales sont solidarisées par des glissières,a pour but de faire une empreinte globale des deux maxillaires(arcade inférieure et supérieure)en une seule manoevre. jusqu'à maintenant on peut parler de porte empreintes bi- maxillaires partielles, car le porte empreinte bimaxillaire tel qu'il est conçu ne permet pas de faire une empreinte totale de toutes les dents des deux arcades dentaires. En effet on emploie actuellement dans les cabinets dentaires des porte empreinte bimaxillaire traditionnels dont nous allons décrire les principes;pour faire une empreinte bi¬ maxillaire,c'est à dire obtenir les deux arcades dentaires, un porte empreinte non bimaxillaire doit être ouvert sur le dessus,afin que les dents du haut et du bas entrent en contact par leur face triturante ou occlusale,se pose alors le problème de la tenue des deux parties latérales ou flans restants du porte empreinte, en effet dans un porte empreinte non bimaxillaire toutes les parties sont solidaires(flans et dessus)d'une façon structurale,ce qui donne la forme et la fonction du porte empreinte maxillaire,dans ce cas les dents du haut et du bas viennent frapper le dessus du porte empreinte,quand le patient ferme la bouche, il faut donc que le porte empreinte unimaxillaire soit ouvert pour acquérir une fonction bimaxillaire, c'est alors que les deux flans interne et externe ne sont plus solidaires,et vont aller dans des directions tout à fait incompatibles avec la fonc¬ tion d'un porte empreinte.The present invention is a bimaxil¬ impression tray whose structural parts are secured by slides, aims to make an overall impression of the two maxillae (lower and upper arch) in a single maneuver. Up to now we can speak of partial bi-maxillary impression trays, because the bimaxillary impression tray as it is designed does not allow to make a total impression of all the teeth of the two dental arches. In fact, we currently use traditional bimaxillary impression trays in dental offices, the principles of which we will describe; to make a bi-maxillary impression, that is to say to obtain the two dental arches, a non-bimaxillary impression tray must be opened on the above, so that the upper and lower teeth come into contact by their triturating or occlusal face, there then arises the problem of holding the two remaining lateral parts or blanks of the impression tray, in fact in a non-bimaxillary impression tray every parts are integral (blanks and top) structurally, which gives the shape and function of the maxillary impression tray, in this case the top and bottom teeth strike the top of the impression tray, when the patient closes the mouth, it is therefore necessary that the unimaxillary impression tray is open to acquire a bimaxillary function, it is then that the two internal and external blanks are no longer integral, and will go in directions completely incompatible with the function of a tray.
Dans les porte empreinte bimaxillaire traditionnels les deux parties latérales sont reliées de deux façons:In traditional bimaxillary impression trays, the two lateral parts are connected in two ways:
Premièrement par une barre transversale située derrié- re les dernières molaires quand le porte empreinte est en bouche,dans ce cas, le porte empreinte bimaxillaire a une fonction limitée aux dents postérieures et unilatéralement, c'est à dire pour une hémie arcade seulement.Firstly by a cross bar located behind re the last molars when the impression tray is in the mouth, in this case, the bimaxillary impression tray has a function limited to the posterior teeth and unilaterally, ie for a hemic arch only.
Deuxièmement les deux flans du porte empreinte bima¬ xillaire sont reliés par une gaze très fine de manière à ce que les dents entrent en contact quand le patient mord dans ce cas,1'utilisation est aussi limitée,mais ici aux dents antérieures jusqu'au prémolaires environ,suivant la taille et la forme de la bouche du patient,car il n'existe qu'un modèle.Secondly, the two blanks of the bima¬ xillary impression tray are connected by a very fine gauze so that the teeth come into contact when the patient bites in this case, the use is also limited, but here the anterior teeth up to about premolars, depending on the size and shape of the patient's mouth, because there is only one model.
Dans les deux cas le dentiste ne peut obtenir une empreinte complète des deux arcades dentaires en occlusion,et avec ces systèmes les empreintes ne sont pas suffisantes et sont détestées par les prothésistes,qui sont obligés d'imaginer les parties manquantes.In both cases the dentist cannot obtain a complete impression of the two dental arches in occlusion, and with these systems the impressions are not sufficient and are hated by the prosthetists, who are forced to imagine the missing parts.
Pourquoi ces deux systèmes ne permettent-ils pas d'obtenir une empreinte globale,nous allons l'expliquer maintenant.Why these two systems do not allow to obtain a global footprint, we will explain it now.
Dans chaque bouche,sur une arcade dentaire,la distance entre la 1 et la 8,c'est à dire la longueur d'une hémie arcade est variable anatomiquement suivant les individus ,or la distance dans un porte empreinte bimaxillaire tra¬ ditionnel,entre la partie ouverte antérieure et la partie postérieure munie d'une barre transversale rétromolaire reliant les deux flans du porte empreinte est fixe,donc pour que le porte empreinte bimaxillaie s'adapte à la taille du maxillaire,le praticien fait se mouvoir le porte empreinte vers l'avant ou vers l'arrière,de façon à ce que la barre transversale soit toujours située derrière les dents posté¬ rieures(8 ou 7)afin de. ne pas entraver la fermeture de la bouche jusqu'à 1Occlusion(dents en contact),c'est pour cela qu'avec ce système on ne peut faire que des hernies arcades postérieures en empreinte,en effet s'il y avait deux barres transversales rétromolaires le porte empreinte bimaxillaire ne pourrait pratiquement pas bouger,sans modi¬ fier d'une façon tout à fait inadéquat sa largeur,et ne pourrait donc pas s'adapter à la taille des maxillaires de chaque patient,il y aurait aussi blocage par les dents an¬ térieures,car avec ce système l'adaptation se fait aussi obliquement par la largeur même du porte empreinte,s'il faut trop d'adaptation les flans du porte empreinte touche¬ ront les faces vestibulaires et linguales des dents,c'est le blocage d'une autre façon.In each mouth, on a dental arch, the distance between the 1 and the 8, that is to say the length of a hemic arch is anatomically variable according to the individuals, or the distance in a traditional bimaxillary impression tray, between the anterior open part and the posterior part provided with a retromolar transverse bar connecting the two blanks of the impression tray is fixed, so that the bimaxilla impression tray adapts to the size of the maxilla, the practitioner moves the impression tray towards forward or backward, so that the crossbar is always located behind the posterior teeth (8 or 7) in order to. do not obstruct the closing of the mouth until 1 Occlusion (teeth in contact), that is why with this system we can only make posterior arch hernias in impression, indeed if there were two transverse bars retromolar the bimaxillary impression tray could practically not move, without modifying in an entirely inadequate way its width, and therefore could not adapt to the size of the jaws of each patient, there would also be blockage by the anterior teeth, because with this system the adaptation is also done obliquely by the very width of the impression tray, if it takes too much adaptation the blanks of the impression tray will touch the vestibular and lingual faces of the teeth, this is blocking in another way.
Dans le deuxième système,la barre transversale de li¬ aison des flans a été remplacée par une fine gaze,ce qui empêche le blocage précédamment décrit,mais on ne peut faire que des demies empreintes antérieures,car le porte empreinte n'est pas assez rigide,car pour ce faire les concepteurs ont été obligés de supprimer le flan interne qui a été rem¬ placé par un bloc de mousse très souple,ce qui permet une adaptation aproximative àla taille de l'arcade dentaire, de ce fait le porte empreinte bimaxillaire n'est pas assez rigide pour aller d'une extrémité à l'autre du maxillaire(l à 8)et en même temps être rempli et supporter le poids du matériau d'empreinte,d'ailleurs pour porter en bouche ce porte empreinte le praticien doit le soutenir jusqu'à ce qu'il entre en contact avec les dents inférieures,c'est donc un porte empreinte bimaxillaire tout à fait aproximatif Dans ce système utilisant la gaze pour les dents postérieu¬ res la barre transversale rétromolaire n'a pas été suppri¬ mée,cela n'aurait pas été possible mécaniquement,le manche du porte empreinte se trouvant trop loin des dents posté¬ rieures retenues par la gaze,un porte empreinte ainsi fait s'effondrerait complètement et perdrait sa forme et sa structure qui est une ébauche d'un maxillaire nécessaire à une empreinte digne de ce nom.In the second system, the crossbar for li¬ aison of the blanks has been replaced by a fine gauze, which prevents the blocking described above, but we can only make half anterior impressions, because the impression tray is not enough rigid, because to do this the designers were forced to remove the internal blank which was replaced by a block of very flexible foam, which allows an approximate adaptation to the size of the dental arch, thus the imprint bimaxillary is not rigid enough to go from one end to the other of the maxilla (l to 8) and at the same time be filled and support the weight of the impression material, moreover to carry in the mouth this impression tray the practitioner must support it until it comes into contact with the lower teeth, so it is a completely approximate bimaxillary impression tray In this system using gauze for posterior teeth the retromo transverse bar the surface has not been removed, this would not have been possible mechanically, the handle of the impression tray being too far from the posterior teeth retained by the gauze, an impression tray thus made would completely collapse and lose its form and its structure which is a rough outline of a jaw necessary for an imprint worthy of the name.
L'avantage de la présente invention est de remédier aux défauts des deux systèmes ci-dessus décrits,en prenant en compte cette donnée anatomique fondamentale que la tail¬ le des arcades dentaires varie avec chaque patient,et même suivant chaque patient suivant l'hémie arcade considérée (place et absence de la dent de sagesse).The advantage of the present invention is to remedy the defects of the two systems described above, by taking into account this fundamental anatomical datum that the size of the dental arches varies with each patient, and even according to each patient depending on the blood supply arch considered (place and absence of the wisdom tooth).
Pour cela la dimension fixe du porte empreinte bimaxillaire traditionnel bien qu'ouvert est devenue variable dans la présente invention,c'est un porte empreinte bimaxillaire à grandeur variable qui aura ces différentes parties main¬ tenues par l'arrière rétromolairement,sans entraver la fer- „,.„-.„ PCT/FR95/01198 O 97/10771For this, the fixed dimension of the traditional bimaxillary impression tray although open has become variable in the present invention, it is a bimaxillary impression tray with variable size which will have these different parts maintained by the rear retromolarly, without hampering the iron. - „,.„ -. „PCT / FR95 / 01198 O 97/10771
-4- ture de la bouche jusqu'à l'occlusion(dents se touchant, ne laissant plus d'espace entre elles).-4- mouth size to occlusion (teeth touching, leaving no space between them).
La présente invention définie initialement pour être utilisée dans les cabinets dentaires,se compose de deux parties:The present invention, initially defined for use in dental offices, consists of two parts:
Une partie fixe double homothétique,munie d'un manche,qui constitue le corps du porte empreinte bimaxillaire,et une partie mobile double et symétrique,les glissières.A fixed double homothetic part, provided with a handle, which constitutes the body of the bimaxillary impression tray, and a double and symmetrical mobile part, the slides.
Premièrement le corps(fig 1 1 2 34 5 6), il se compose de deux flans(2 3 fig Dinterne et externe, et d'un manche(l). Le flan externe de la présente invention(2 figl) est de forme courbée suivant le profil et la hauteur de l'arcade dentaire,en tenant compte que dans la présente invention il existent trois modèles de taille différentes basés sur le même principe afin de s'adapter parfaitement aux différ¬ ents maxillaires,un seul porte empreinte est décrit ici, les éléments structuraux étant conceptuellement les mêmes. Sur ce flan externe à sa partie médiane et externe se trou¬ ve un manche droit(I l)qui permet au praticien de saisir le porte empreinte;il faut préciser que les bords du flan sont suffisamment épais et arrondis pour nepas blesser la muqueuse buccale.Sur les parties externes de ce flan se trouvent les fourreaux(I 5)appendices creux de section carrée dans lesquels viendront coulisser les coulisseaux (1 7 8 9 10)que nous décrirons par la suite. Les fourreaux parties fixes des glissières(I 5 6)sont dou¬ ble et symétriques sur les parties extérieures de chaque flan(I 2 3)et en son milieu.First the body (fig 1 1 2 34 5 6), it consists of two blanks (2 3 fig Internal and external, and a handle (l). The external blank of the present invention (2 figl) is shaped curved according to the profile and the height of the dental arch, taking into account that in the present invention there are three models of different size based on the same principle in order to adapt perfectly to the different maxillary, a single impression is described here, the structural elements being conceptually the same On this external blank at its middle and external part there is a straight handle (I l) which allows the practitioner to grasp the impression tray; it should be noted that the edges of the blank are sufficiently thick and rounded to not injure the oral mucosa. On the external parts of this blank are the sheaths (I 5) hollow appendages of square section in which the slides will slide (1 7 8 9 10) which we will describe by continued. the fixed parts of the slides (I 5 6) are dou¬ ble and symmetrical on the external parts of each blank (I 2 3) and in the middle.
Secondement le flan interned 3)est de forme courbée sui¬ vant la forme et la hauteur du maxillaire mais ici du côté interne ou lingual,donc toujours plus petit en courbe que le flan externe(I 2),également d'épaisseur suffisante et arrondi pour ne pas blesser la muqueuse buccale;sur les parties externes du flan interne(I 3)se trouvent les four¬ reaux ,parties fixes des glissiéres(I 6)appendices creux de section carrée dans lesquels coulissent les coulisseaux (1 7 8 9 10)que nous allons décrire maintenant. Les coulisseaux constituent les parties mobiles des glis- sières(I 5 6 7 8 9 10),ceux-ci sont faits d'une barre de section carrée de taille adéquate pour coulisser dans les -5- fourreauxd 5 6),ces coulisseauxd 7 8 9 10)sont courbés sur leur partie arrière pour se diviser alors en trois branches,une branche courte interne,dit coulisseau interne (I 8)qui coulisse dans le fourreau interne(I 6)et une bran¬ che longue,coulisseau externed 9)qui coulisse dans le fourreau externed 6),ces deux coulisseauxd 8 9)sont re¬ liés entre eux par un coulisseau transversal(I 10)pour former une sorte de parallélogramme disométrique et ouvert, les coulisseaux externes sont terminées par un filetage(I 4)sur lequel vient se visser le manche du couliseaud 7) celui-ci permet de saisir la glissière et de la faire cou¬ lisser tout en empêchant celle-ci de s'échapper de son four¬ reau(I 5 ou 6),ce manche est de forme adéquat afin que le praticien puisse le saisir entre le pouce et l'index.Secondly the internal blank 3) is of curved shape following the shape and the height of the maxilla but here on the internal or lingual side, therefore always smaller in curve than the external blank (I 2), also of sufficient and rounded thickness so as not to injure the oral mucosa; on the external parts of the internal blank (I 3) are the four¬ reaux, fixed parts of the slides (I 6) hollow appendages of square section in which the slides slide (1 7 8 9 10 ) which we will describe now. The slides constitute the moving parts of the slides (I 5 6 7 8 9 10), these are made of a bar of square section of adequate size to slide in the -5- sheathsd 5 6), these slidersd 7 8 9 10) are curved on their rear part to then divide into three branches, an internal short branch, called internal slide (I 8) which slides in the internal sheath (I 6 ) and a long branch, externed slide 9) which slides in the externed sheath 6), these two slides 8 9) are linked together by a transverse slide (I 10) to form a kind of disometric and open parallelogram , the external sliders are terminated by a thread (I 4) onto which the handle of the couliseaud 7 is screwed in. This makes it possible to grasp the slide and make it cou¬ smooth while preventing the latter from escaping from its four¬ reau (I 5 or 6), this handle is of adequate shape so that the practitioner can grasp it between the thumb and forefinger.
La présente invention aijsi décrite nous allons ex¬ pliquer maintenant le fonctionnement du porte empreinte bimaxillaire a géométrie variable:The present invention described above, we will now explain the operation of the bimaxillary impression tray with variable geometry:
Tout d'abord,parmi les trois tailles de porte empreinte existantes le praticien choisit celui qui se rapproche le plus des maxillaires dont il doit prendre l'empreinte,celui- ci choisi,le praticien va placer le porte empreinte vide en bouche pour essayage,c'est à dire non chargé de matériau d'empreinte,puis le dentiste va pousser les coulisseaux (I 7 8 9 10)de manière à placer le coulisseau transversal(I 10)derrière les dernières molaires présentes dans la bouche du patient,pour se faire le praticien tiendra le manche du corps(I l)dans sa main gauche;et poussera le manche du coulisseau avec sa main droite,le porte empreinte ainsi ajusté n'entrave pas la fermeture des mâchoires en occlusion; puis le dentiste va sortir de la bouche du patient le por¬ te empreinte,puis il va le remplir de matériau d'empreinte et le remettre en bouche en prenant bien soin de dire au patient de mettre les dents en contact serré les unes avec les autres, il retirera enfin le porte empreinte de la bou¬ che du patient après le temps nécessaire à la prise du ma¬ tériau d'empreinte .First of all, among the three existing impression tray sizes, the practitioner chooses the one that comes closest to the maxillae from which he must take the impression, this one chosen, the practitioner will place the empty impression tray in the mouth for fitting, ie not loaded with impression material, then the dentist will push the slides (I 7 8 9 10) so as to place the transverse slide (I 10) behind the last molars present in the patient's mouth, to to do the practitioner will hold the handle of the body (I l) in his left hand; and push the handle of the slide with his right hand, the impression tray thus adjusted does not hinder the closing of the jaws in occlusion; then the dentist will take the impression from the patient's mouth, then fill it with impression material and put it back in the mouth, being careful to tell the patient to put the teeth in close contact with each other. others, it will finally remove the impression tray from the mouth of the patient after the time necessary for taking the impression material.
Il faut préciser que les différentes parties du porte empr¬ einte sont démontables afin de le nettoyer et de stériliser. Pour cela, il suffit de dévisser les manches des coulisseauxd 7)à ce moment là tirer les coulisseauxd 8 9 10)vers l'ar- riére,ceux-ci se détachent alors des flans(1 23) et les flans sont automatiquement libérés. Pour le remontage enfiler les coulisseauxd 8 9) dans les fourreauxd 5 6),puis les pousser jusqu'au fond pour toucher le coulisseau transversal(1 10)aux extrémités des fourreaux(1 56),ensuite visser les manches du cou¬ lisseau(1 7). It should be noted that the different parts of the imprint holder are removable in order to clean and sterilize it. To do this, simply unscrew the sleeves of the slides 7) at this time pull the slides 8 9 10) backwards. riére, these then detach from the blanks (12) and the blanks are automatically released. For reassembly thread the slides 8 9) into the sleeves 5 6), then push them all the way down to touch the transverse slide (1 10) at the ends of the sleeves (1 56), then screw the sleeves of the slide ( 1 7).

Claims

R E V E N D I C A T I O N SR E V E N D I C A T I O N S
1) Porte-empreinte bimaxillaire à géométrie va¬ riable, comprenant un flan externe (2) et un flan interne (3) dont le profil et les dimensions sont déterminés pour correspondre aux contours externe et interne de l'arcade dentaire, le flan externe étant pourvu d'un prolongement (1) formant un manche de préhension se disposant en dehors de la bouche, ces flans étant par ailleurs pourvus de glis¬ sières (5, 6) dans lesquelles sont susceptibles de se dé- placer des coulisseaux (8, 9, 10) reliant, de chaque côté de l'arcade dentaire et au-delà de la dernière molaire de la dentition, ces flans interne et externe, porte-empreinte caractérisé en ce que chaque coulisseau (8, 9, 10) se pro¬ longe à l'extérieur de la bouche, de chaque côté du manche (i) , de manière à autoriser le réglage en bouche du porte- empreinte.1) Bimaxillary impression tray with variable geometry, comprising an external blank (2) and an internal blank (3) whose profile and dimensions are determined to correspond to the external and internal contours of the dental arch, the external blank being provided with an extension (1) forming a gripping handle which is arranged outside the mouth, these blanks being moreover provided with slides (5, 6) in which are slidable (8 , 9, 10) connecting, on each side of the dental arch and beyond the last molar of the dentition, these internal and external blanks, impression tray characterized in that each slide (8, 9, 10) is extends outside the mouth, on each side of the handle (i), so as to allow adjustment in the mouth of the impression tray.
2) Porte-empreinte conforme à la revendication 1, caractérisé en ce que les prolongements interne et ex¬ terne des coulisseaux se terminent par un filetage pour la réception d'un manche (4) .2) Impression tray according to claim 1, characterized in that the internal and external extensions of the slides end with a thread for receiving a handle (4).
3) Porte-empreinte conforme à l'une quelconque des revendications précédentes, caractérisé en ce que les glissières des flans interne et externe et les coulisseaux sont de section carrée. 3) Impression tray according to any one of the preceding claims, characterized in that the slides of the internal and external blanks and the slides are of square section.
PCT/FR1995/001198 1995-09-19 1995-09-19 Variable geometry bimaxillary impression tray WO1997010771A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/FR1995/001198 WO1997010771A1 (en) 1995-09-19 1995-09-19 Variable geometry bimaxillary impression tray

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR1995/001198 WO1997010771A1 (en) 1995-09-19 1995-09-19 Variable geometry bimaxillary impression tray

Publications (1)

Publication Number Publication Date
WO1997010771A1 true WO1997010771A1 (en) 1997-03-27

Family

ID=9475762

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1995/001198 WO1997010771A1 (en) 1995-09-19 1995-09-19 Variable geometry bimaxillary impression tray

Country Status (1)

Country Link
WO (1) WO1997010771A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103536372A (en) * 2013-10-04 2014-01-29 马艺 Impression tray used for stomatology department
CN105078599A (en) * 2015-06-25 2015-11-25 于在湖 Adjustable oral impression tray

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR784672A (en) * 1935-01-25 1935-07-22 Dental prosthesis impression tray
US4145812A (en) * 1977-10-14 1979-03-27 Johnson James F Adjustable dental impression tray
FR2606271A1 (en) * 1986-11-12 1988-05-13 Segura Claude Universal adjustable impression tray

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR784672A (en) * 1935-01-25 1935-07-22 Dental prosthesis impression tray
US4145812A (en) * 1977-10-14 1979-03-27 Johnson James F Adjustable dental impression tray
FR2606271A1 (en) * 1986-11-12 1988-05-13 Segura Claude Universal adjustable impression tray

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103536372A (en) * 2013-10-04 2014-01-29 马艺 Impression tray used for stomatology department
CN105078599A (en) * 2015-06-25 2015-11-25 于在湖 Adjustable oral impression tray

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