EP0120831A2 - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
EP0120831A2
EP0120831A2 EP84870023A EP84870023A EP0120831A2 EP 0120831 A2 EP0120831 A2 EP 0120831A2 EP 84870023 A EP84870023 A EP 84870023A EP 84870023 A EP84870023 A EP 84870023A EP 0120831 A2 EP0120831 A2 EP 0120831A2
Authority
EP
European Patent Office
Prior art keywords
bristles
tuft
brush according
head
tufts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84870023A
Other languages
German (de)
French (fr)
Other versions
EP0120831B1 (en
EP0120831A3 (en
Inventor
Etienne Yves G. J. D'argembeau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Argembeau Etienne Yves G J D
Original Assignee
Argembeau Etienne Yves G J D
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 Argembeau Etienne Yves G J D filed Critical Argembeau Etienne Yves G J D
Priority to AT84870023T priority Critical patent/ATE31605T1/en
Publication of EP0120831A2 publication Critical patent/EP0120831A2/en
Publication of EP0120831A3 publication Critical patent/EP0120831A3/en
Application granted granted Critical
Publication of EP0120831B1 publication Critical patent/EP0120831B1/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • the present invention relates to improvements in toothbrushes.
  • known toothbrushes have a head mounted at the end of a handle, this head having a flat or curved profile comprising, on one of its faces, a series of tufts of bristles.
  • the head of known brushes generally has a length of 20 to 30 millimeters, a width of 10 to 12 millimeters and a thickness of 4 to 5 millimeters.
  • the free end of the head is often rounded, so as to prevent irritation of the soft tissues of the oral cavity.
  • the bristles are grouped in tufts inserted into cavities formed in the head.
  • the bristles are often made of nylon and have a variable diameter of up to 0.28 millimeters.
  • the present invention relates to a toothbrush arranged so as to allow its use under conditions such that it allows not only the removal of the bacterial plaque which covers the surface of the teeth, but also a massage in the gum. non-keratinized sulcular and junctional epithelium.
  • Periodontopathies such as gingivitis
  • the present invention relates to a toothbrush allowing the removal of bacterial plaque from the entire surface (non-chewing and chewing) of the teeth, including the surface at the level of the sulcular gum and the interdental surface, as well as a brushing and massage of the sulcus gum ensuring keratinization thereof.
  • the subject of the invention is also a toothbrush which differs from conventional toothbrushes, as much by the dimensions and the shape of the tufts of bristles as by the shape and the dimensions of the head carrying these tufts of bristles, as well as by the shapes and dimensions of the handle to which the head is connected. These differences make it possible to obtain a toothbrush offering the advantages mentioned in the previous paragraph, thanks to a method of use radically different from that of conventional toothbrushes, as will be seen below.
  • the toothbrush according to the invention which has a head furnished with at least one tuft of individual bristles tangent to one another is essentially characterized in that the tufts or tufts have a width corresponding substantially to the depth of the groove sulcular. In practice, this width is approximately 0.5 to 3 millimeters.
  • the head relative to which protrudes at least one tuft of bristles has a constant section of circular or elliptical shape, the diameter of which is approximately 3 to 5 mm, the head length preferably being greater than that of the rows of premolar and molar teeth.
  • the head of the brush is connected to a handle of polygonal cross section, while, preferably, the median longitudinal plane of the tuft or tufts of bristles makes an angle of less than 90 ° with the plane of at least one face of the handle of polygonal section, facing the free end tuft or tufts of hair, said angle preferably being 45 °.
  • the median longitudinal plane of the tuft or tufts of bristles is a bisector plane with respect to the planes of two symmetrical faces of the handle of polygonal cross section, turned towards the end free from tuft or tufts of hair.
  • the teeth are brushed using the free ends of the bristles in an alternating movement.
  • the brush according to the present invention is eminently suitable for use according to an original technique allowing the ends of the bristles to penetrate to the bottom of the sulcus groove, between the gingival crest and the teeth, so as to ensure a gentle massage of the internal surface of the gingival gum and to favor the homogeneous appearance of a protective keratinization of this surface.
  • the tangent bristles of the brush according to the invention are used. lises to scrape by their lateral surface, rather than to brush by their ends, the lateral surface of the teeth.
  • the brush according to the invention shown in Figures 1 to 3 of the drawings, comprises a handle 1 ending in a head 2 carrying a multitude of bristles 3 perpendicular to a face 4 of the head 2 and tangent to each other .
  • the handle 1 of the brush can be tilted or curved so that the head 2 carrying the bristles 3 either at a level lower than that of the handle or part thereof, when the brush is placed on a surface with its bristles pointing upwards.
  • This arrangement promotes access of the bristles to the teeth, in particular on the lingual side of the dental crown.
  • the tuft of bristles 3 may comprise, for example, one thousand two hundred rigid monofilament bristles or strands, for example nylon, with a diameter of 0.22 millimeters, forming a dense tuft, the width La of which corresponds substantially to the depth of the sulcular sulcus, this depth being approximately 0.5 to 3 millimeters.
  • the bristles preferably have an identical length and protrude relative to the face 4 of the head 2 over a distance at least equal to the maximum average height of the teeth, ie in practice a length L of 10 to 15 millimeters.
  • the free ends of the bristles form a flat surface, this surface however being able to be slightly convex and concave.
  • the surface formed by the free ends of the hairs is dense and free of protruding hairs and roughness.
  • the length L o of the tuft of bristles 3 is not critical. It can vary, for example, between 15 and 25 millimeters.
  • the tuft of bristles 3 is inserted into a window 5 provided with reinforcing bars 7 and pierced in the head 2 of the face 4 thereof on its opposite face 6.
  • This face 6 reveals the end of the bristles welded together and having hundreds of capillary conduits.
  • the free ends of the individual hairs preferably have the shape of a rounded head, such as a mushroom head.
  • the head 2 of the brush advantageously has a width A of approximately 3 millimeters and a thickness of approximately 2 to 3 millimeters, the length L "of this head possibly being from 30 to 60 millimeters.
  • the second embodiment of the toothbrush according to the invention differs from that shown in Figures 1 to 3 in that the head 2 has a circular cross section over its entire length and is connected in 8 to a handle 1 having a polygonal cross section.
  • the diameter of the head 2 is preferably about 3 to 5 millimeters.
  • the head 2 can have an elliptical cross section.
  • the handle 1 has a square cross section.
  • the median longitudinal plane, shown diagrammatically by the dashed line P1 in FIG. 5, of the tuft of hairs 3 makes an angle less than 90 °, preferably an angle of 45 °, with the plane P 2 of at least one face of the handle facing the free end of the tuft of bristles 3.
  • the plane P 1 is a bisecting plane making an angle a of 45 ° with the planes P 2 , P 3 of two symmetrical faces 9 and 10 of its handle 1 of square cross section, facing the free end of the tuft of bristles 3.
  • the plane P 1 contains, moreover, the opposite edges 11 and 12 of the handle 1.
  • the user has a safe means of properly orienting the tuft of bristles 3 when he takes the brush in hand.
  • the user is right-handed and wants to brush the lower teeth, he places his thumb with his right hand on side 10, while when he is left-handed, he applies his thumb with his left hand to side 9 of the handle.
  • the handle 1 is held in the right hand in this way, the tuft of bristles 3 is oriented, so as to allow the use of the brush according to the technique described below which is entirely different from the conventional mode or modes use of known toothbrushes.
  • the head 2 and the tuft of bristles 3 of the compact sulcular brush according to the invention have dimensions much smaller than those of conventional brushes.
  • the brush according to the invention in particular that illustrated in FIGS. 4 and 5, can be used according to a technique making it possible to dislodge the plate. bacterial as well as the desquamated cells of the junctional and sulcular gum, while allowing scraping of the vestibular and lingual surfaces of the teeth.
  • the brush is arranged so that its bristles 3 extend parallel to the buccal or lingual surface of the dental crown, that is to say so that the bristles, at their free end, are tangent to the lateral surface of the teeth 13 at their collar 14. Thanks to the reduced width (0.5 to 3 millimeter of the tuft of hairs 3, the free ends 15 of the hairs penetrate into the sulcular groove 16 between the gingival crest 17 and the teeth 13. While the free ends 15 of the bristles are in contact with the bottom of the sulcus sulcus, the lateral surface of the bristles is applied to the lateral vestibular or lingual surface of the dental crown, by marrying, as shown in FIG. 7, the sinuous shape of this crown.
  • the head 2 of the brush is then subjected to a low amplitude vibrating back-and-forth movement in the direction of arrows Y, so that the free ends 15 of the hairs 3 pressed into the gingival groove 16 provide a massage and scraping of the interior of this gingival groove 16, while the hairs 3 sweep through their lateral surface the lateral vestibular or lingual surface of the dental crown.
  • FIG. 9 shows the sinuous movement which the bristles 3 take in scraping by their lateral surface the coronal surface of the teeth, while the free ends 15 of the bristles massage the gingival groove 16.
  • the bristles 3 of the brush according to the invention extend parallel to this lateral surface.
  • the free ends 15 of the bristles 3 pressed into the gingival groove 16 undergo almost no displacement in this groove and simply massage the gingival and papillary sulcus. Thanks to this massage and the capillary effect created by the hairs tangent to each other, there is an aspiration of the bacterial plaque from inside the gingival groove 16 towards the dorsal face of the head 2 of the brush, while the surface of the crown and the collar of the teeth 13 is cleaned by the lateral face of the bristles which sweeps across this surface.
  • the technique of use described above of the brush according to the invention allows a perfect elimination of the bacterial plaque contained in the gingival groove and a cleaning of the coronal surface and the collar of the teeth, without gingival irritation, without - risk of scratching - or abrasion of the coronal surface and the neck of the teeth and without pressure being exerted by the keratinized part of the gum on the tooth (which avoids any risk of gingival recession).
  • Massage of the internal surface of the gingival groove by the free ends 15 of the bristles 3 promotes homogeneous keratinization ensuring protection of the cell layer of this internal surface.
  • the shape and dimensions of the head 2 of the compact sulcular brush according to the invention make it practically impossible any brushing liable to cause gingival lesions and other lesions in the mouth of the user.
  • the toothbrush may comprise two tufts spaced from one another or more in the direction of the length of the head 2.
  • the handle 1 of the brush may have a section in the shape of any regular polygon, for example in the shape of an equilateral triangle, regular pentagon, regular hexagon, etc.

Abstract

L'invention concerne une brosse à dents, dont la tête (2), de préférence de section circulaire ou elliptique, porte au moins une touffe de poils (3) dont la largeur correspond sensiblement à la profondeur du sillon sulculaire. La tête (2) de la brosse est, de préférence, raccordée à un manche (1) de section polygonale, de préférence carrée, le plan longitudinal médian (P1) de la touffe de poils (3) faisant avantageusement un angle inférieur à 90°, de préférence de 45° avec le plan (P2, P3) d'au moins une face (9) du manche (1) de section polygonale, tournée vers l'extrémité libre (15) de la touffe de poils (3).The invention relates to a toothbrush, the head (2) of which, preferably of circular or elliptical cross section, carries at least one tuft of bristles (3) whose width corresponds substantially to the depth of the sulcus groove. The head (2) of the brush is preferably connected to a handle (1) of polygonal section, preferably square, the median longitudinal plane (P1) of the tuft of bristles (3) advantageously making an angle less than 90 °, preferably 45 ° with the plane (P2, P3) of at least one face (9) of the handle (1) of polygonal section, facing the free end (15) of the tuft of bristles (3) .

Description

La présente invention est relative à des perfectionnements aux brosses à dents.The present invention relates to improvements in toothbrushes.

En général, les brosses à dents connues présentent une tête montée à l'extrémité d'un manche, cette tête présentant un profil plat ou bombé comportant, sur une de ses faces, une série de touffes de poils. La tête des brosses connues a généralement une longueur de 20 à 30 millimètres, une largeur de 10 à 12 millimètres et une épaisseur de 4 à 5 millimètres. L'extrémité libre de la tête est souvent arrondie, de façon à empêcher l'irritation des tissus mous de la cavité buccale.In general, known toothbrushes have a head mounted at the end of a handle, this head having a flat or curved profile comprising, on one of its faces, a series of tufts of bristles. The head of known brushes generally has a length of 20 to 30 millimeters, a width of 10 to 12 millimeters and a thickness of 4 to 5 millimeters. The free end of the head is often rounded, so as to prevent irritation of the soft tissues of the oral cavity.

Dans la plupart des brosses à dents connues, les poils sont regroupés en touffes insérées dans des cavités ménagées dans la tête. Les poils sont souvent en nylon et ont un diamètre variable pouvant atteindre 0,28 millimètre.In most known toothbrushes, the bristles are grouped in tufts inserted into cavities formed in the head. The bristles are often made of nylon and have a variable diameter of up to 0.28 millimeters.

La présente invention a pour objet une brosse à dents agencée de manière à permettre son utilisation dans des conditions telles qu'elle permet non seulement l'enlèvement de la plaque bactérienne qui recouvre la surface des dents, mais également un massage au niveau de la gencive sulculaire non kératinisée et de l'épithélium de jonction.The present invention relates to a toothbrush arranged so as to allow its use under conditions such that it allows not only the removal of the bacterial plaque which covers the surface of the teeth, but also a massage in the gum. non-keratinized sulcular and junctional epithelium.

Les études cliniques et histologiques ont montré que les parodontopathies, telles que la gingivite, apparaissent non pas au niveau de la partie de la gencive qui est kératinisée, mais bien au niveau du sulcus gingival non kératinisé.Clinical and histological studies have shown that periodontopathies, such as gingivitis, appear not at the part of the gum that is keratinized, but at the level of the non-keratinized gingival sulcus.

La présente invention a pour objet une brosse à dents permettant l'élimination de la plaque bactérienne de toute la surface (non mastiquante et mastiquante) des dents, y compris la surface au niveau de la gencive sulculaire et la surface interdentaire, ainsi qu'un brossage et un massage de la gencive sulculaire assurant une kératinisation de celle-ci.The present invention relates to a toothbrush allowing the removal of bacterial plaque from the entire surface (non-chewing and chewing) of the teeth, including the surface at the level of the sulcular gum and the interdental surface, as well as a brushing and massage of the sulcus gum ensuring keratinization thereof.

L'invention a encore pour objet une brosse à dents qui se différencie des brosses à dents classiques, tant par les dimensions et la forme des touffes de poils que par la forme et les dimensions de la tête portant ces touffes de poils, ainsi que par les formes et les dimensions du manche auquel la tête est reliée. Ces différences permettent d'obtenir une brosse à dents offrant les avantages mentionnés dans le paragraphe précédent, grâce à un mode d'utilisation radicalement différent de celui des brosses à dents classiques, comme on le verra plus loin.The subject of the invention is also a toothbrush which differs from conventional toothbrushes, as much by the dimensions and the shape of the tufts of bristles as by the shape and the dimensions of the head carrying these tufts of bristles, as well as by the shapes and dimensions of the handle to which the head is connected. These differences make it possible to obtain a toothbrush offering the advantages mentioned in the previous paragraph, thanks to a method of use radically different from that of conventional toothbrushes, as will be seen below.

La brosse à dents suivant l'invention qui présente une tête garnie d'au moins une touffe de poils individuels tangents l'un à l'autre est essentiellement caractérisée en ce que la ou les touffes ont une largeur correspondant sensiblement à la profondeur du sillon sulculaire. En pratique, cette largeur est d'environ 0,5 à 3 millimètres.The toothbrush according to the invention which has a head furnished with at least one tuft of individual bristles tangent to one another is essentially characterized in that the tufts or tufts have a width corresponding substantially to the depth of the groove sulcular. In practice, this width is approximately 0.5 to 3 millimeters.

Suivant une particularité de la brosse à dents suivant l'invention, la tête par rapport à laquelle fait saillie au moins une touffe de poils présente une section constante de forme circulaire ou elliptique, dont le diamètre est d'environ 3 à 5 mm, la longueur de la tête étant de préférence supérieure à celle des rangéesde dents prémolaires et molaires.According to a feature of the toothbrush according to the invention, the head relative to which protrudes at least one tuft of bristles has a constant section of circular or elliptical shape, the diameter of which is approximately 3 to 5 mm, the head length preferably being greater than that of the rows of premolar and molar teeth.

Suivant une autre particularité de l'invention, la tête de la brosse est raccordée à un manche de section transversale polygonale, tandis que, de préférence, le plan longitudinal médian de la touffe ou des touffes de poils fait un angle inférieur à 90° avec le plan d'au moins une face du manche de section polygonale, tournée vers l'extrémité libre de la touffe ou des touffes de poils, ledit angle étant de préférence de 45°.According to another feature of the invention, the head of the brush is connected to a handle of polygonal cross section, while, preferably, the median longitudinal plane of the tuft or tufts of bristles makes an angle of less than 90 ° with the plane of at least one face of the handle of polygonal section, facing the free end tuft or tufts of hair, said angle preferably being 45 °.

Dans une forme de réalisation particulière de la brosse suivant l'invention, le plan longitudinal médian de la touffe ou des touffes de poils est un plan bissecteur par rapport aux plans de deux faces symétriques du manche de section transversale polygonale, tournées vers l'extrémité libre de la touffe ou des touffes de poils.In a particular embodiment of the brush according to the invention, the median longitudinal plane of the tuft or tufts of bristles is a bisector plane with respect to the planes of two symmetrical faces of the handle of polygonal cross section, turned towards the end free from tuft or tufts of hair.

Grâce aux formes et dimensions caractéristiques des parties de la brosse à dents suivant l'invention, celle-ci peut être utilisée d'une manière totalement différente de celle des brosses classiques.Thanks to the characteristic shapes and dimensions of the parts of the toothbrush according to the invention, it can be used in a completely different way from that of conventional brushes.

Lors de l'utilisation des brosses classiques, on brosse les dents à l'aide des extrémités libres des poils suivant un mouvement alternatif.When using conventional brushes, the teeth are brushed using the free ends of the bristles in an alternating movement.

Ce mode d'utilisation des brosses à dents classiques empêche d'atteindre certaines surfaces difficilement accessibles, en sorte que l'élimination de la plaque bactérienne y est mal assurée et que l'apparition de parodontopathies récidivantes n'y est pas convenablement empêchée. La conformation et le mode d'utilisation des brosses à dents classiques ne permettent, par ailleurs, qu'une pénétration médiocre et irrégulière des poils dans le sulcus gingival, en sorte que l'élimination de la plaque bactérienne et que la disparition de parodontopathies dans ce sulcus ne sont pas assurées.This mode of use of conventional toothbrushes prevents certain hard-to-reach surfaces from being reached, so that the elimination of bacterial plaque is poorly ensured and that the appearance of recurrent periodontopathies is not properly prevented there. The conformation and the mode of use of the classic toothbrushes allow, moreover, only a mediocre and irregular penetration of the hairs in the gingival sulcus, so that the elimination of the bacterial plate and that the disappearance of periodontopathies in this sulcus is not insured.

La brosse suivant la présente invention convient éminemment pour être utilisée suivant une technique originale permettant aux extrémités des poils de pénétrer jusqu'au fond du sillon sulculaire, entre la crête gingivale et les dents, de manière à assurer un massage doux de la surface interne de la gencive gingivale et à favoriser l'apparation homogène d'une kératinisation protectrice de cette surface. Par ailleurs, les poils tangents de la brosse suivant l'invention sont utilisés pour racler par leur surface latérale, plutôt que de brosser par leurs extrémités, la surface latérale des dents.The brush according to the present invention is eminently suitable for use according to an original technique allowing the ends of the bristles to penetrate to the bottom of the sulcus groove, between the gingival crest and the teeth, so as to ensure a gentle massage of the internal surface of the gingival gum and to favor the homogeneous appearance of a protective keratinization of this surface. Furthermore, the tangent bristles of the brush according to the invention are used. lises to scrape by their lateral surface, rather than to brush by their ends, the lateral surface of the teeth.

D'autres particularités et détails de l'invention ressortiront de la description suivante des dessins ci-annexés qui montrent schématiquement deux formes de réalisation d'une brosse à dents suivant l'invention, ainsi que la technique d'utilisation de celle-ci.Other particularities and details of the invention will emerge from the following description of the appended drawings which schematically show two embodiments of a toothbrush according to the invention, as well as the technique for using it.

Dans ces dessins :

  • - la figure 1 est une vue en perspective d'une première forme de réalisation d'une brosse à dents suivant l'invention;
  • - la figure 2 est une vue en élévation montrant la brosse à dents suivant l'invention vue de dos;
  • - la figure 3 est une vue en élévation latérale de la brosse montrée à la figure 1;
  • - la figure 4 est une vue en perspective d'une seconde forme de réalisation d'une brosse à dents suivant l'invention;
  • - la figure 5 est, à plus grande échelle, une coupe suivant la ligne V-V de la figure 4;
  • - la figure 6 est une vue en élévation montrant une brosse suivant l'invention en position de service contre une dent;
  • - la figure 7 est une vue en plan dans le sens de la flèche Z de la figure 6, et
  • - la figure 8 est une vue en élévation dans le sens de la flèche V à la figure 6.
In these drawings:
  • - Figure 1 is a perspective view of a first embodiment of a toothbrush according to the invention;
  • - Figure 2 is an elevational view showing the toothbrush according to the invention seen from the back;
  • - Figure 3 is a side elevational view of the brush shown in Figure 1;
  • - Figure 4 is a perspective view of a second embodiment of a toothbrush according to the invention;
  • - Figure 5 is, on a larger scale, a section along the line VV of Figure 4;
  • - Figure 6 is an elevational view showing a brush according to the invention in the service position against a tooth;
  • FIG. 7 is a plan view in the direction of the arrow Z in FIG. 6, and
  • FIG. 8 is an elevation view in the direction of arrow V in FIG. 6.

Dans ces différentes figures, les mêmes notations de référence désignent des éléments identiques.In these different figures, the same reference notations designate identical elements.

La brosse suivant l'invention, représentée aux figures 1 à 3 des dessins, comprend un manche 1 se terminant par une tête 2 portant une multitude de poils 3 perpendiculaires à une face 4 de la tête 2 et tangents l'un à l'autre.The brush according to the invention, shown in Figures 1 to 3 of the drawings, comprises a handle 1 ending in a head 2 carrying a multitude of bristles 3 perpendicular to a face 4 of the head 2 and tangent to each other .

Au lieu de s'étendre dans le prolongement de la tête 2, comme montré aux figures 2 et 3, le manche 1 de la brosse peut être incliné ou courbé de telle sorte que la tête 2 portant les poils 3 soit à une niveau inférieur à celui du manche ou d'une partie de celui-ci, lorsque la brosse est posée sur une surface en ayant ses poils dirigés vers le haut. Cette disposition favorise l'accès des poils aux dents, en particulier du côté lingual de la couronne dentaire.Instead of extending in the extension of the head 2, as shown in Figures 2 and 3, the handle 1 of the brush can be tilted or curved so that the head 2 carrying the bristles 3 either at a level lower than that of the handle or part thereof, when the brush is placed on a surface with its bristles pointing upwards. This arrangement promotes access of the bristles to the teeth, in particular on the lingual side of the dental crown.

La touffe de poils 3 peut comporter, par exemple, mille deux cents poils ou brins monofilamentaires rigides, par exemple en nylon, d'un diamètre de 0,22 millimètre, formant une touffe dense, dont la largeur La correspond sensiblement à la profondeur du sillon sulculaire, cette profondeur étant d'environ 0,5 à 3 millimètres.The tuft of bristles 3 may comprise, for example, one thousand two hundred rigid monofilament bristles or strands, for example nylon, with a diameter of 0.22 millimeters, forming a dense tuft, the width La of which corresponds substantially to the depth of the sulcular sulcus, this depth being approximately 0.5 to 3 millimeters.

Les poils ont, de préférence, une longueur identique et font saillie par rapport à la face 4 de la tête 2 sur une distance au moins égale à la hauteur maximale moyenne des dents, soit en pratique une longueur L de 10 à 15 millimètres. Les extrémités libres des poils forment une surface plane, cette surface pouvant cependant être légèrement convexe et concave. La surface formée par les extrémités libres des poils est dense et exempte de poils saillants et d'aspérités. La longueur L'o de la touffe de poils 3 n'est pas critique. Elle peut varier, par exemple, entre 15 et 25 millimètres.The bristles preferably have an identical length and protrude relative to the face 4 of the head 2 over a distance at least equal to the maximum average height of the teeth, ie in practice a length L of 10 to 15 millimeters. The free ends of the bristles form a flat surface, this surface however being able to be slightly convex and concave. The surface formed by the free ends of the hairs is dense and free of protruding hairs and roughness. The length L o of the tuft of bristles 3 is not critical. It can vary, for example, between 15 and 25 millimeters.

La touffe de poils 3 est insérée dans une fenêtre 5 munie de barreaux de renforcement 7 et percée dans la tête 2 de la face 4 de celle-ci à sa face opposée 6. Cette face 6 laisse apparaitre l'extrémité des poils soudés entre eux et présentant des centaines de conduits capillaires.The tuft of bristles 3 is inserted into a window 5 provided with reinforcing bars 7 and pierced in the head 2 of the face 4 thereof on its opposite face 6. This face 6 reveals the end of the bristles welded together and having hundreds of capillary conduits.

Les extrémités libres des poils individuels ont, de préférence, la forme d'une tête arrondie , telle qu'une tête de champignon.The free ends of the individual hairs preferably have the shape of a rounded head, such as a mushroom head.

La tête 2 de la brosse a avantageusement une largeur L'a d'environ 3 millimètres et une épaisseur d'environ 2 à 3 millimètres, la longueur L" de cette tête pouvant être de 30 à 60 millimètres.The head 2 of the brush advantageously has a width A of approximately 3 millimeters and a thickness of approximately 2 to 3 millimeters, the length L "of this head possibly being from 30 to 60 millimeters.

La seconde forme de réalisation de la brosse à dents suivant l'invention, montrée aux figures 4 et 5, diffère de celle montrée aux figures 1 à 3 par le fait que la tête 2 présente une section transversale circulaire sur toute sa longueur et est raccordée en 8 à un manche 1 ayant une section transversale polygonale. Le diamètre de la tête 2 est, de préférence, d'environ 3 à 5 millimètres.The second embodiment of the toothbrush according to the invention, shown in Figures 4 and 5, differs from that shown in Figures 1 to 3 in that the head 2 has a circular cross section over its entire length and is connected in 8 to a handle 1 having a polygonal cross section. The diameter of the head 2 is preferably about 3 to 5 millimeters.

Au lieu d'avoir une section transversale circulaire, la tête 2 peut avoir une section transversale elliptique.Instead of having a circular cross section, the head 2 can have an elliptical cross section.

Aux figures 4 et 5, le manche 1 présente une section transversale carrée.In Figures 4 and 5, the handle 1 has a square cross section.

Le plan longitudinal médian, schématisé par la ligne en traits mixtes P1 à la figure 5,de la touffe de poils 3 fait un angle inférieur à 90°,de préférence un angle de 45°, avec le plan P2 d'au moins une face du manche tournée vers l'extrémité libre de la touffe de poils 3. Comme on le voit à la figure 5, le plan P1 est un plan bissecteur faisant un angle a de 45° avec les plans P2,P3 de deux faces symétriques 9 et 10 de son manche 1 de section transversale carrée, tournées vers l'extrémité libre de la touffe de poils 3. Le plan P1 contient, par ailleurs, les arêtes opposées 11 et 12 du manche 1.The median longitudinal plane, shown diagrammatically by the dashed line P1 in FIG. 5, of the tuft of hairs 3 makes an angle less than 90 °, preferably an angle of 45 °, with the plane P 2 of at least one face of the handle facing the free end of the tuft of bristles 3. As can be seen in FIG. 5, the plane P 1 is a bisecting plane making an angle a of 45 ° with the planes P 2 , P 3 of two symmetrical faces 9 and 10 of its handle 1 of square cross section, facing the free end of the tuft of bristles 3. The plane P 1 contains, moreover, the opposite edges 11 and 12 of the handle 1.

Grâce à l'angle a précité entre les plans P2, P3 des faces 9 et 10 du manche 1 et le plan longitudinal médian P1 de la touffe de poils 3,l'utilisateur dispose d'un moyen sûr pour orienter convenablement la touffe de poils 3 lorsqu'il prend la brosse en main. Ainsi, lorsque l'utilisateur est droitier et qu'il désire brosser les dents du bas,il pose-le pouce de la main droite sur la face 10,tandis que lorsqu'il est gaucher, il applique le pouce de la main gauche sur la face 9 du manche. Lorsque le manche 1 est tenu en main droite de cette façon, la touffe de poils 3 est orientée, de façon à permettre l'utilisation de la brosse selon la technique décrite plus loin qui est tout-à-fait différente du ou des modes classiques d'utilisation des brosses à dents connues.Thanks to the aforementioned angle between the planes P 2 , P 3 of the faces 9 and 10 of the handle 1 and the median longitudinal plane P 1 of the tuft of bristles 3, the user has a safe means of properly orienting the tuft of bristles 3 when he takes the brush in hand. Thus, when the user is right-handed and wants to brush the lower teeth, he places his thumb with his right hand on side 10, while when he is left-handed, he applies his thumb with his left hand to side 9 of the handle. When the handle 1 is held in the right hand in this way, the tuft of bristles 3 is oriented, so as to allow the use of the brush according to the technique described below which is entirely different from the conventional mode or modes use of known toothbrushes.

La tête 2 et la touffe de poils 3 de la brosse sulculaire compacte suivant l'invention ont des dimensions largement inférieures à celles des brosses classiques.The head 2 and the tuft of bristles 3 of the compact sulcular brush according to the invention have dimensions much smaller than those of conventional brushes.

Grâce à la conformation et aux dimensions de la tête 2 de la touffe de poils 3 et du manche 1, la brosse suivant l'invention, en particulier celle illustrée aux figures 4 et 5, peut être utilisée selon une technique permettant de déloger la plaque bactérienne ainsi que les cellules desquamées de la gencive jonctionnelle et sulculaire, tout en permettant un raclage des surfaces vestibulaire et linguale des dents.Thanks to the conformation and the dimensions of the head 2 of the tuft of bristles 3 and of the handle 1, the brush according to the invention, in particular that illustrated in FIGS. 4 and 5, can be used according to a technique making it possible to dislodge the plate. bacterial as well as the desquamated cells of the junctional and sulcular gum, while allowing scraping of the vestibular and lingual surfaces of the teeth.

La technique d'utilisation de la brosse suivant l'invention est illustrée aux figures 7 à 9.The technique of using the brush according to the invention is illustrated in FIGS. 7 to 9.

Comme on le voit à la figure 7, la brosse est disposée de façon que ses poils 3 s'étendent parallèlement à la surface vestibulaire ou linguale de la couronne dentaire, c'est-à-dire de façon que les poils,au niveau de leur extrémité libre, soient tangents à la surface latérale des dents 13 au niveau de leur collet 14. Grâce à la largeur réduite (0,5 à 3 millimètree de la touffe de poils 3, les extrémités libres15 des poils pénètrent dans le sillon sulculaire 16 entre la crête gingivale 17 et les dents 13. Tandis que les extrémités libres 15 des poils sont en contact avec le fond du sillon sulculaire, la surface latérale des poils est appliquée sur la surface latérale vestibulaire ou linguale de la couronne dentaire, en épousant, comme le montre la figure 7, la forme sinueuse de cette couronne. Lorsque la tête 2 et la touffe de poils 3 sont dans la position montrée aux figures. 7 et 8, dans laquelle la tête 2 est parallèle au plan acclu- sal X, on exerce une pression sur la tête 2 vers le centre des dents. De cette façon, les poils 3 se disposent régulièrement tout le long du sillon gingival 16, en suivant le pourtour du collet 14 des dents 13 jusqu'à l'espace interdentaire. On soumet ensuite la tête 2 de la brosse à un mouvement de va-et-vient vibratoire de faible amplitude dans le sens des flèches Y, de façon que les extrémités libres15 des poils 3 enfoncées dans le sillon gingival 16 assurent un massage et un raclage de l'intérieur de ce sillon gingival 16, tandis que les poils 3 balayent par leur surface latérale la surface latérale vestibulaire ou linguale de la couronne dentaire.As seen in Figure 7, the brush is arranged so that its bristles 3 extend parallel to the buccal or lingual surface of the dental crown, that is to say so that the bristles, at their free end, are tangent to the lateral surface of the teeth 13 at their collar 14. Thanks to the reduced width (0.5 to 3 millimeter of the tuft of hairs 3, the free ends 15 of the hairs penetrate into the sulcular groove 16 between the gingival crest 17 and the teeth 13. While the free ends 15 of the bristles are in contact with the bottom of the sulcus sulcus, the lateral surface of the bristles is applied to the lateral vestibular or lingual surface of the dental crown, by marrying, as shown in FIG. 7, the sinuous shape of this crown. When the head 2 and the tuft of bristles 3 are in the position shown in FIGS. 7 and 8, in which the head 2 is parallel to the accumulative plane X, pressure is exerted on the head 2 towards the the center of the teeth. In this way, the bristles 3 are regularly arranged along the gingival groove 16, following the periphery of the collar 14 of the teeth 13 up to the interdental space. The head 2 of the brush is then subjected to a low amplitude vibrating back-and-forth movement in the direction of arrows Y, so that the free ends 15 of the hairs 3 pressed into the gingival groove 16 provide a massage and scraping of the interior of this gingival groove 16, while the hairs 3 sweep through their lateral surface the lateral vestibular or lingual surface of the dental crown.

La figure 9 montre le mouvement sinueux que les poils 3 prennent en raclant par leur surface latérale la surface coronnaire des dents, tandis que les extrémités libres 15 des poils massent le sillon gingival 16.FIG. 9 shows the sinuous movement which the bristles 3 take in scraping by their lateral surface the coronal surface of the teeth, while the free ends 15 of the bristles massage the gingival groove 16.

On voit ainsi qu'au lieu d'être dirigés vers la surface latérale des dents, les poils 3 de la brosse suivant l'invention s'étendent parallèlement à cette surface latérale. En fait, les extrémités libres 15 des poils 3 enfoncées dans le sillon gingival 16 ne subissent quasiment pas de déplacement dans ce sillon et massent simplement le sulcus gingival et papillaire. Grâce à ce massage et à l'effet de capillarité créé par les poils tangents l'un à l'autre, il se produit une aspiration de la plaque bactérienne depuis l'intérieur du sillon gingival 16 vers la face dorsale de la tête 2 de la brosse, tandis que la surface de la couronne et du collet des dents 13 est nettoyée par la face latérale des poils qui balaye cette surface.It can thus be seen that instead of being directed towards the lateral surface of the teeth, the bristles 3 of the brush according to the invention extend parallel to this lateral surface. In fact, the free ends 15 of the bristles 3 pressed into the gingival groove 16 undergo almost no displacement in this groove and simply massage the gingival and papillary sulcus. Thanks to this massage and the capillary effect created by the hairs tangent to each other, there is an aspiration of the bacterial plaque from inside the gingival groove 16 towards the dorsal face of the head 2 of the brush, while the surface of the crown and the collar of the teeth 13 is cleaned by the lateral face of the bristles which sweeps across this surface.

La technique d'utilisation susdécrite de la brosse suivant l'invention permet une élimination parfaite de la plaque bactérienne contenue dans le sillon gingival et un nettoyage de la surface coronnaire et du collet des dents, sans irritation gingivale, sans -risque de griffage -ou d'abrasion de la surface coronnaire et du collet des dents et sans qu'une pression soit exercée par la partie kératinisée de la gencive sur la dent (ce qui évite tout risque de récession gingivale). Le massage de la surface interne du sillon gingival par les extrémités libres 15 des poils 3 favorise une kératinisation homogène assurant une protection de la couche cellulaire de cette surface interne.The technique of use described above of the brush according to the invention allows a perfect elimination of the bacterial plaque contained in the gingival groove and a cleaning of the coronal surface and the collar of the teeth, without gingival irritation, without - risk of scratching - or abrasion of the coronal surface and the neck of the teeth and without pressure being exerted by the keratinized part of the gum on the tooth (which avoids any risk of gingival recession). Massage of the internal surface of the gingival groove by the free ends 15 of the bristles 3 promotes homogeneous keratinization ensuring protection of the cell layer of this internal surface.

La forme et les dimensions de la tête 2 de la brosse sulculaire compacte suivant l'invention rendent pratiquement impossible tout brossage susceptible de causer des lésions gingivales et d'autres lésions dans la bouche de l'utilisateur.The shape and dimensions of the head 2 of the compact sulcular brush according to the invention make it practically impossible any brushing liable to cause gingival lesions and other lesions in the mouth of the user.

Au lieu de comporter une seule touffe de poils de forme sensiblement parallélipipédique, la brosse à dents peut comporter deux touffes espacées l'une de l'autre ou plus dans le sens de la longueur de la tête 2.Instead of having a single tuft of bristles of substantially parallelepiped shape, the toothbrush may comprise two tufts spaced from one another or more in the direction of the length of the head 2.

Au lieu d'avoir une section transversale carrée, le manche 1 de la brosse peut présenter une section en forme de polygone régulier quelconque, par exemple en forme de triangle équilatéral, de pentagone régulier, d'hexagone régulier, etc...Instead of having a square cross section, the handle 1 of the brush may have a section in the shape of any regular polygon, for example in the shape of an equilateral triangle, regular pentagon, regular hexagon, etc.

Claims (15)

1. Brosse à dents comportant une tête garnie d'au moins une touffe de poils individuels, caractérisée en ce que la touffe (3) ou les touffes ont une largeur (La) correspondant sensiblement à la profondeur du sillon sulculaire (16).1. Toothbrush comprising a head furnished with at least one tuft of individual bristles, characterized in that the tuft (3) or the tufts have a width (La) corresponding substantially to the depth of the sulcular groove (16). 2. Brosse suivant la revendication 1, caractérisée en ce que la largeur de la touffe (3) ou des touffes de poils est d'environ 0,5 à 3 millimètres.2. Brush according to claim 1, characterized in that the width of the tuft (3) or tufts of bristles is about 0.5 to 3 millimeters. 3. Brosse suivant l'une quelconque des revendications 1 et 2, caractérisée en ce que la tête (2) par rapport à laquelle fait saillie au moins une touffe de poils (3) présente une section constante de forme circulaire ou elliptique.3. Brush according to any one of claims 1 and 2, characterized in that the head (2) relative to which protrudes at least one tuft of bristles (3) has a constant section of circular or elliptical shape. 4. Brosse suivant l'une quelconque des revendications précédentes, caractérisée en ce que la tête (2) présente une largeur ou un diamètre d'environ 3 à 5 millimètres.4. Brush according to any one of the preceding claims, characterized in that the head (2) has a width or a diameter of approximately 3 to 5 millimeters. 5. Brosse suivant l'une quelconque des revendications 3 et 4, caractérisée en ce que la tête (2) présente une longueur (Lu0) supérieure à celle des rangées de dents prémolaires et molaires.5. Brush according to any one of claims 3 and 4, characterized in that the head (2) has a length (L u0 ) greater than that of the rows of premolar and molar teeth. 6. Brosse suivant l'une quelconque des revendications 3 à 5, caractérisée en ce que la tête (2) est raccordée à un manche (1) de section transversale polygonale (fig.4).6. Brush according to any one of claims 3 to 5, characterized in that the head (2) is connected to a handle (1) of polygonal cross section (fig.4). 7. Brosse suivant la revendication 6, caractérisée en ce que le manche (1) présente une section transversale carrée.7. Brush according to claim 6, characterized in that the handle (1) has a square cross section. 8. Brosse suivant l'une quelconque des revendications 6 et 7, caractérisée en ce que le plan longitudinal médian (P1) de la touffe (3) ou des touffes de poils fait un angle (a) inférieur à 90° avec le plan (P2, P3) d'au moins une face (9,10) du manche (1) de section polygonale, tournée vers l'extrémité libre (15) de la touffe (3) ou des touffes de poils.8. Brush according to any one of claims 6 and 7, characterized in that the median longitudinal plane (P 1 ) of the tuft (3) or tufts of bristles makes an angle (a) less than 90 ° with the plane (P 2 , P 3 ) of at least one face (9, 10) of the handle (1) of polygonal section, facing the free end (15) of the tuft (3) or tufts of hair. 9. Brosse suivant la revendication 8, caractérisée en ce que l'angle susdit (a) est égal à 45°.9. Brush according to claim 8, characterized in that the above-mentioned angle (a) is equal to 45 °. 10. Brosse suivant l'une quelconque des revendications 8 et 9, caractérisée en ce que le plan longitudinal médian (P1) de la touffe (3) ou des touffes de poils est un plan bissecteur par rapport aux plans (P2, P3) de deux faces symétriques (9,10) du manche (1) de section transversale polygonale, tournées vers l'extrémité libre (15) de la touffe (3) ou des touffes de poils.10. Brush according to any one of claims 8 and 9, characterized in that the median longitudinal plane (P 1 ) of the tuft (3) or tufts of bristles is a bisector plane with respect to the planes (P 2 , P 3 ) two symmetrical faces (9,10) of the handle (1) of polygonal cross section, facing the free end (15) of the tuft (3) or tufts of bristles. 11. Brosse suivant l'une quelconque des revendications précédentes, caractérisée en ce que la longueur (L ) des poils (3) par rapport à la tête (2) est au moins égale à la hauteur maximale moyenne des dents.11. Brush according to any one of the preceding claims, characterized in that the length (L) of the bristles (3) relative to the head (2) is at least equal to the maximum average height of the teeth. 12. Brosse suivant la revendication 11, caractérisée en ce que la longueur (Lo) des poils (3) est d'environ 10 à 15 millimètres.12. Brush according to claim 11, characterized in that the length (L o ) of the bristles (3) is about 10 to 15 millimeters. 13. Brosse suivant l'une quelconque des revendications précédentes, caractérisée en ce que les poils de la touffe (3) ou des touffes sont insérés dans une fenêtre allongée (5) traversant de part en part la tête (2) de la brosse.13. Brush according to any one of the preceding claims, characterized in that the bristles of the tuft (3) or tufts are inserted in an elongated window (5) passing right through the head (2) of the brush. 14. Brosse suivant la revendication 13, caractérisée en ce que la fenêtre (5) est munie de barrettes (7) de renforcement.14. Brush according to claim 13, characterized in that the window (5) is provided with reinforcing bars (7). 15. Brosse suivant l'une quelconque des revendications précédentes, caractérisée en ce que les extrémités libres (15) des poils de la touffe (3) ou des touffes forment une surface dense dépourvue d'aspérités, ces extrémités libres (15) des poils ayant chacune une forme arrondie.15. Brush according to any one of the preceding claims, characterized in that the free ends (15) of the bristles of the tuft (3) or tufts form a dense surface devoid of roughness, these free ends (15) of the bristles each having a rounded shape.
EP84870023A 1983-02-21 1984-02-20 Toothbrush Expired EP0120831B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84870023T ATE31605T1 (en) 1983-02-21 1984-02-20 TOOTHBRUSH.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
BE210156 1983-02-21
BE210156 1983-02-21
BE0/212243A BE898717R (en) 1983-02-21 1984-01-20 TOOTHBRUSH IMPROVEMENTS
BE212243 1984-01-20

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EP0120831A2 true EP0120831A2 (en) 1984-10-03
EP0120831A3 EP0120831A3 (en) 1984-11-07
EP0120831B1 EP0120831B1 (en) 1988-01-07

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EP84870023A Expired EP0120831B1 (en) 1983-02-21 1984-02-20 Toothbrush

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US (1) US4542552A (en)
EP (1) EP0120831B1 (en)
BE (1) BE898717R (en)
DE (1) DE3468313D1 (en)
MX (1) MX156791A (en)

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EP2925188A4 (en) * 2012-11-27 2016-11-30 Salvatore P Dericco Orthodontic toothbrush

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US4752984A (en) * 1987-03-06 1988-06-28 Moharram Miryam M Dental brace toothbrush
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US8510893B2 (en) 2008-06-20 2013-08-20 Colgate-Palmolive Company Toothbrush with visual and/or other sensory effects
USD761025S1 (en) * 2014-01-08 2016-07-12 William F. Hinckley Toothbrush
USD795591S1 (en) 2014-10-08 2017-08-29 Salvatore P. DeRicco Orthodontic toothbrush
USD812378S1 (en) 2015-01-29 2018-03-13 Salvatore P. DeRicco Toothbrush
TWM555209U (en) * 2017-09-29 2018-02-11 Chen Yi Chung Replaceable tooth cleaning set
USD859844S1 (en) * 2017-12-14 2019-09-17 Salvatore P. DeRicco Toothbrush
USD890529S1 (en) * 2017-12-29 2020-07-21 Baby Tress, Inc. Combination baby brush and comb
USD892505S1 (en) * 2018-04-24 2020-08-11 Salvatore P. DeRicco Toothbrush head
CN109805590A (en) * 2019-03-25 2019-05-28 广州皓醒湾科技有限公司 A kind of electric toothbrush
USD931618S1 (en) * 2020-09-23 2021-09-28 Salvatore Dericco Combined periodontal sulcus brush and intrasulcular medicament applicator

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Also Published As

Publication number Publication date
MX156791A (en) 1988-10-04
EP0120831B1 (en) 1988-01-07
US4542552A (en) 1985-09-24
EP0120831A3 (en) 1984-11-07
DE3468313D1 (en) 1988-02-11
BE898717R (en) 1984-07-20

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