FR2702141A1 - Dentofacial orthopaedic device for anteriorised and passive functional stressing of the mandible - Google Patents

Dentofacial orthopaedic device for anteriorised and passive functional stressing of the mandible Download PDF

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Publication number
FR2702141A1
FR2702141A1 FR9302430A FR9302430A FR2702141A1 FR 2702141 A1 FR2702141 A1 FR 2702141A1 FR 9302430 A FR9302430 A FR 9302430A FR 9302430 A FR9302430 A FR 9302430A FR 2702141 A1 FR2702141 A1 FR 2702141A1
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France
Prior art keywords
piston
spring
stop
piston body
force
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Revoked
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FR9302430A
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French (fr)
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Petit Henri
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Individual
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Individual
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Priority to FR9302430A priority Critical patent/FR2702141A1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/36—Devices acting between upper and lower teeth

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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)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

The invention relates to the addition of a device (4) generating a mechanical force between the end-stops of dentofacial orthopaedic rods. In one embodiment, represented by Figure 4, the inner piston may consist of a tubular element (1) capable of containing the force generator. The latter may then consist of a coil spring (4) which can be adjusted by choosing the material and determining its active length. It may be guided in its axial operation by an inner spindle (5). In other embodiments, the spring may either be internal to the body of the piston and external to the piston or positioned externally around the body of the piston. The force generator may consist either of one or of a combination of a plurality of these springs. The combination of rod and springs, optionally wrapped in a protective sheath (7), allows, when mounted on dentofacial orthopaedic equipment, passive and anteriorised operation of the mandible, that is to say with no activation or with reduced activation of the protractor muscles of the mandible, this being for therapeutic purposes. The device according to the invention is particularly intended for treating mandibular retrognatic skeletal problems in the young when growing and problems linked with dysfunctions of the temporomandibular articulations at any age.

Description

La présente invention concerne un dispositif correcteur de malpositions dento-faciales à type de rétrognathie mandibulaire et de dysfonctions occluso-articulées.The present invention relates to a device for correcting dento-facial malpositions such as mandibular retrognathia and occluso-articulated dysfunctions.

On connait la bielle à butées représentée par les figures 1, 2 et 3 de la planche unique annexée. Elle est constituée d'un piston (1) coulissant dans un corps de piston (2) et aboutissant en position fermée au contact du bord du corps de piston avec une butée (3) du piston (1). Montée sur des appareils apairés d'orthopédie dento-faciale, lorsque la butée (3) du piston (1) s'appuie sur l'extrémité de ce tube (2), elle contraint ainsi le fonctionnement mandibulaire en une position plus antérieure dite "corrigée".We know the connecting rod with stops shown in Figures 1, 2 and 3 of the single attached sheet. It consists of a piston (1) sliding in a piston body (2) and terminating in the closed position in contact with the edge of the piston body with a stop (3) of the piston (1). Mounted on paired dento-facial orthopedic devices, when the stop (3) of the piston (1) rests on the end of this tube (2), it thus constrains the mandibular functioning in a more anterior position called " corrected ".

La figure 1 représente une telle bielle démontée. La figure 2 représente la bielle montée en position entrouverte et la figure 3 représente la bielle montée dans la position d'appui ou de butée décrite ci-dessus.Figure 1 shows such a disassembled connecting rod. FIG. 2 represents the connecting rod mounted in the half-open position and FIG. 3 represents the connecting rod mounted in the support or stop position described above.

I1 a été démontré que la mise en position mandibulaire antériorisée volontaire sollicite 11 excitation des muscles pterygoïdeus lateralis dont les insertions mandibulaires et articulaires se situent au niveau des condyles et des ménisques de l'articulation temporomandibulaire. Avec le temps, cette sollicitation musculaire sur les sites d'insertion devient inductrice d'adaptations orthopédiques structurales vers l'avant, contre-indiquées lorsque le but du traitement orthopédique est l'allongement global de la distance postéroantérieure condylion-menton de la mandibule. It has been shown that the voluntary anterior mandibular positioning calls for excitation of the pterygoideus lateralis muscles, the mandibular and articular insertions of which are located at the level of the condyles and menisci of the temporomandibular joint. Over time, this muscular solicitation at the insertion sites becomes inducing forward structural orthopedic adaptations, contraindicated when the aim of orthopedic treatment is the overall lengthening of the posterior anterior condylion-chin distance of the mandible.

Le dispositif selon l'invention consiste en l'interposition d'une force mécanique élastique entre les butées du dispositif à bielles.The device according to the invention consists of the interposition of an elastic mechanical force between the stops of the connecting rod device.

Cette force compense les forces de recul mandibulaire exercées par les muscles rétracteurs et peut ainsi minimiser ou annuler 1' excitation des muscles protracteurs, les ptérygoïdeus lateralis.This force compensates for the mandibular recoil forces exerted by the retractor muscles and can thus minimize or cancel the excitation of the protractor muscles, the pterygoideus lateralis.

La présente invention sera mieux comprise par la description détaillée qui va suivre en référence aux dessins annexés dans lesquels: - la figure 4 représente un premier mode de réalisation en coupe longitudinale, ou l'on peut noter que les éléments constitutifs de la bielle, c'est à dire le piston (1) et le corps de piston (2) sont entrouverts. Le générateur de force est un ressort (4), comprimé entre le fond (6) du corps de piston (2) et la butée (3) du piston creux tubulaire (1). En outre, une broche (5) est insérée à l'intérieur du ressort et procure un guidage lorsque le piston et le corps de piston s'écartent pendant leur coulissement.The present invention will be better understood from the detailed description which follows with reference to the accompanying drawings in which: - Figure 4 shows a first embodiment in longitudinal section, where it may be noted that the constituent elements of the connecting rod, c 'ie the piston (1) and the piston body (2) are ajar. The force generator is a spring (4), compressed between the bottom (6) of the piston body (2) and the stop (3) of the hollow tubular piston (1). In addition, a pin (5) is inserted inside the spring and provides guidance when the piston and the piston body move apart during their sliding.

- la figure 5 représente le me me dispositif avec le piston seul, représenté en coupe sans la broche de guidage (5). - Figure 5 shows the me me device with the piston alone, shown in section without the guide pin (5).

- la figure 6 représente une section transversale du dispositif de la figure 5 selon AA'. On y note, de dedans en dehors, la broche servant de guide (5), le ressort libre (4) entourant la broche et contenu dans le piston creux (1). Enfin, le corps de piston (2) entoure le piston. - Figure 6 shows a cross section of the device of Figure 5 along AA '. We note, from inside out, the spindle serving as a guide (5), the free spring (4) surrounding the spindle and contained in the hollow piston (1). Finally, the piston body (2) surrounds the piston.

- la figure 7 représente une section transversale illustrant la disposition du ressort (4) à l'extérieur du piston (1). Dans cette représentation le ressort (4) est inséré entre le piston tubulaire creux (1) et un corps de piston (2) de dimension adéquate. - Figure 7 shows a cross section illustrating the arrangement of the spring (4) outside the piston (1). In this representation, the spring (4) is inserted between the hollow tubular piston (1) and a piston body (2) of adequate size.

- la figure 8 représente une section transversale d'un dispositif similaire à celui de la figure 7 mais où le piston (l) est plein
non plus tubulaire.- Figure 8 shows a cross section of a device similar to that of Figure 7 but where the piston (l) is full
no longer tubular.

- la figure 9 représente une section transversale d'un dispositif similaire à celui représenté dans la figure 6 dans lequel, en outre ue ressort (4) a été disposé autour de la face externe du corps de piston (2). Il est entouré, en outre, d'une gaine protectrice (7). - Figure 9 shows a cross section of a device similar to that shown in Figure 6 in which, in addition ue spring (4) has been arranged around the outer face of the piston body (2). It is surrounded, moreover, by a protective sheath (7).

- la figure 10 représente un mode de réalisation où l'on peut noter la présence du ressort (4) en position externe au corps de piston (2). Les butées du dispositif consistent alors en une butée (3) solidaire du piston et une nouvelle butée (3") solidaire du corps de piston (2). L'ensemble est protégé par une gaine souple (7) représentée ici en section longitudinale. Le corps de piston peut aussi contenir un ressort interne au corps de piston et externe au piston, puis, ce piston et un ressort interne au piston, guidé ou non sur une broche (5). La figure 9 représente une section transversale selon BB' d'une de ces dispositions comportant seulement deux ressorts (4), l'un externe au corps de piston (2) l'autre interne au piston (1) et une gaine de protection souple (7).  - Figure 10 shows an embodiment where we can note the presence of the spring (4) in position external to the piston body (2). The stops of the device then consist of a stop (3) secured to the piston and a new stop (3 ") secured to the piston body (2). The assembly is protected by a flexible sheath (7) shown here in longitudinal section. The piston body may also contain a spring internal to the piston body and external to the piston, then this piston and a spring internal to the piston, whether or not guided on a pin (5). Figure 9 shows a cross section along BB ' of one of these arrangements comprising only two springs (4), one external to the piston body (2) the other internal to the piston (1) and a flexible protective sheath (7).

Au total, le dispositif selon les modes particuliers de réalisation permet d'exercer sur le piston (1) et le corps de piston (2) qui sont constitutifs de la bielle, des forces tendant à les écarter et dont 1' intensité est généralement comprise entre 50 et 1.500 grammes.In total, the device according to the particular embodiments makes it possible to exert on the piston (1) and the piston body (2) which constitute the connecting rod, forces tending to separate them and the intensity of which is generally understood. between 50 and 1,500 grams.

Ces forces servent à aider la mandibule à se placer en position de protraction mandibulaire passive, sans sollicitation des muscles protracteurs (pterygoïdeus lateralis). En outre, ces forces sont réglables selon les exigences de la thérapeutique par l'extension ou le raccourcissement du ressort, le choix de sa longueur initiale, la sélection du matériau et l'addition de ressorts concourrant à une action synergique en les positionnant à l'interieur du piston (1), entre le piston (1) et le corps de piston (2) et à l'extérieur du corps de piston (2).Une gaine protectrice (7) peut être ajoutée, ensachant le ressort le plus externe. Cette gaine (7) peut elle-même être génératrice d'une force complémentaire.These forces are used to help the mandible to place itself in a position of passive mandibular protraction, without solicitation of the protractor muscles (pterygoideus lateralis). In addition, these forces are adjustable according to the requirements of therapy by extending or shortening the spring, the choice of its initial length, the selection of the material and the addition of springs contributing to a synergistic action by positioning them at the inside the piston (1), between the piston (1) and the piston body (2) and outside the piston body (2). A protective sheath (7) can be added, bagging the spring most external. This sheath (7) can itself generate a complementary force.

Comme il va de soi, l'invention n'est pas limitée à la forme des réalisations décrites ici, mais embrasse toutes les variantes de 1' exécution.It goes without saying that the invention is not limited to the form of the embodiments described here, but embraces all the variants of the embodiment.

Les dispositifs, selon l'invention, sont particulièrement destinés à la mise en protraction forcée de la mandibule lors des traitements d' orthopédie dento-faciale et lors des traitements des dysfonctions occluso-articulées par des moyens d'orthopédie dento-faciale, lorsque la contraction des muscles protracteurs (perygoldeus lateralis) est contre-indiquée. The devices according to the invention are particularly intended for the forced protraction of the mandible during dento-facial orthopedic treatments and during treatments of occluso-articulated dysfunctions by means of dento-facial orthopedics, when the contraction of the protractor muscles (perygoldeus lateralis) is contraindicated.

Claims (9)

REVENDICATIONS 1) Dispositif orthodontique et orthopédique du type de bielle à butées caractérisé en ce qu'il comporte un élément générateur de forces disposé entre le fond du corps de piston (6) formant une première butée et une autre butée solidaire de l'extrémité opposée du piston (1). Cette force est générée lors de la fermeture de la bielle exerçant ainsi un effet de compensation aux forces naturelles de rétraction mandibulaire.1) Orthodontic and orthopedic device of the type of connecting rod with stops, characterized in that it comprises a force generating element disposed between the bottom of the piston body (6) forming a first stop and another stop secured to the opposite end of the piston (1). This force is generated when the connecting rod is closed, thus exerting a compensating effect for the natural forces of mandibular retraction. 2) Dispositif selon la revendication 1, caractérisé en ce que l'élé- ment générateur de force est un ressort (4) comprimé entre la butée (3) du piston (1) et le fond (6) du corps de piston (2). Le ressort (4), libre, est contenu dans le piston creux (1). Les butées sont alors le fond du corps de piston (6) et la butée (3) du piston (1).2) Device according to claim 1, characterized in that the force generating element is a spring (4) compressed between the stop (3) of the piston (1) and the bottom (6) of the piston body (2 ). The free spring (4) is contained in the hollow piston (1). The stops are then the bottom of the piston body (6) and the stop (3) of the piston (1). 3) Dispositif selon les revendications 1 et 2, caractérisé en ce que le ressort (4) est susceptible de générer une force comprise entre 50 et 1.500 grammes.3) Device according to claims 1 and 2, characterized in that the spring (4) is capable of generating a force between 50 and 1,500 grams. 4) Dispositif selon la revendication 1, 2 et 3 caractérisé en ce que le4) Device according to claim 1, 2 and 3 characterized in that the ressort (4) contenu dans le piston (l) est, de plus, guidé par une broche interne (5). spring (4) contained in the piston (l) is, moreover, guided by an internal pin (5). 5) Dispositif selon les revendications 1, caractérisé en ce que l'élément générateur de force est un ressort externe au piston (1) et interne au corps de piston (2). Les dispositifs de butées demeurent le fond du corps de piston (6) et la butée (3) du piston (1).5) Device according to claims 1, characterized in that the force generating element is a spring external to the piston (1) and internal to the piston body (2). The stop devices remain the bottom of the piston body (6) and the stop (3) of the piston (1). 6) Dispositif selon la revendication 1, caractérisé en ce que l'élément générateur de force est un ressort (4) disposé extérieurement autour du corps de piston (2). Les butées consistent alors en la butée (3) du piston (1) et une butée (3") à l'extrémité opposée du corps de piston (2).6) Device according to claim 1, characterized in that the force generating element is a spring (4) disposed externally around the piston body (2). The stops then consist of the stop (3) of the piston (1) and a stop (3 ") at the opposite end of the piston body (2). 7) Dispositif selon les revendications 1, 2, 3, 4, 5 et 6 caractérisé en ce que le générateur de force est constitué de un ou de plusieurs ressorts, interne au piston selon les revendications 2, 3 et 4, externe au piston selon la revendication 5 et externe au corps de piston selon la revendication 6. 7) Device according to claims 1, 2, 3, 4, 5 and 6 characterized in that the force generator consists of one or more springs, internal to the piston according to claims 2, 3 and 4, external to the piston according to claim 5 and external to the piston body according to claim 6. 8) Dispositif selon les revendications 1, 6 et 7 caractérisé en ce qu' il comporte en outre une gaine de protection souple (7) lorsque le ressort est positionné sur l'élément extérieur à la bielle.8) Device according to claims 1, 6 and 7 characterized in that it further comprises a flexible protective sheath (7) when the spring is positioned on the element external to the connecting rod. 9) Dispositif selon les revendications 1 et 8 caractérisé en ce qu'il comporte, en outre, une gaine protectrice souple (7) génératrice de force intrinsèque lors de sa compression. 9) Device according to claims 1 and 8 characterized in that it further comprises a flexible protective sheath (7) generating intrinsic force during its compression.
FR9302430A 1993-03-03 1993-03-03 Dentofacial orthopaedic device for anteriorised and passive functional stressing of the mandible Revoked FR2702141A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9302430A FR2702141A1 (en) 1993-03-03 1993-03-03 Dentofacial orthopaedic device for anteriorised and passive functional stressing of the mandible

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Application Number Priority Date Filing Date Title
FR9302430A FR2702141A1 (en) 1993-03-03 1993-03-03 Dentofacial orthopaedic device for anteriorised and passive functional stressing of the mandible

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0749726A1 (en) * 1995-06-22 1996-12-27 John De Vincenzo Resiliently expandable orthodontic device
US5964588A (en) * 1998-04-21 1999-10-12 3M Innovative Properties Company Telescoping, intra-oral force module
US6053730A (en) * 1999-07-28 2000-04-25 3M Innovative Properties Company Orthodontic force module with fracture-resistant coupling
EP1108397A1 (en) * 1999-12-10 2001-06-20 Ortho Organizers Class II or III malocclusion correction appliance
US6988888B2 (en) 2003-04-30 2006-01-24 3M Innovative Properties Company Mandibular repositioning assembly
US7578671B2 (en) 2005-07-25 2009-08-25 Ormco Corporation Orthodontic device for treating malocclusions
WO2013060973A1 (en) 2011-10-28 2013-05-02 Orthodontie Alliance Laboratoire Dental apparatus for treating malocclusion

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0749726A1 (en) * 1995-06-22 1996-12-27 John De Vincenzo Resiliently expandable orthodontic device
US5964588A (en) * 1998-04-21 1999-10-12 3M Innovative Properties Company Telescoping, intra-oral force module
WO1999053858A1 (en) * 1998-04-21 1999-10-28 Minnesota Mining And Manufacturing Company Telescoping, intra-oral force module
US6053730A (en) * 1999-07-28 2000-04-25 3M Innovative Properties Company Orthodontic force module with fracture-resistant coupling
EP1108397A1 (en) * 1999-12-10 2001-06-20 Ortho Organizers Class II or III malocclusion correction appliance
US6358046B1 (en) 1999-12-10 2002-03-19 Ortho Organizers Class II or III malocclusion correction appliance
US6988888B2 (en) 2003-04-30 2006-01-24 3M Innovative Properties Company Mandibular repositioning assembly
US7578671B2 (en) 2005-07-25 2009-08-25 Ormco Corporation Orthodontic device for treating malocclusions
WO2013060973A1 (en) 2011-10-28 2013-05-02 Orthodontie Alliance Laboratoire Dental apparatus for treating malocclusion

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