EP0042459A1 - Brosse à dents facilitant l'accessibilité aux espaces interdentaires et aux bords des dents limitrophes des gencives - Google Patents

Brosse à dents facilitant l'accessibilité aux espaces interdentaires et aux bords des dents limitrophes des gencives Download PDF

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Publication number
EP0042459A1
EP0042459A1 EP19800302076 EP80302076A EP0042459A1 EP 0042459 A1 EP0042459 A1 EP 0042459A1 EP 19800302076 EP19800302076 EP 19800302076 EP 80302076 A EP80302076 A EP 80302076A EP 0042459 A1 EP0042459 A1 EP 0042459A1
Authority
EP
European Patent Office
Prior art keywords
stem
handle
head
section
wedge
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
EP19800302076
Other languages
German (de)
English (en)
Other versions
EP0042459B1 (fr
Inventor
Raymond Ernest
Jack Nester
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP19800302076 priority Critical patent/EP0042459B1/fr
Priority to DE8080302076T priority patent/DE3069695D1/de
Publication of EP0042459A1 publication Critical patent/EP0042459A1/fr
Application granted granted Critical
Publication of EP0042459B1 publication Critical patent/EP0042459B1/fr
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/0095—Removable or interchangeable brush heads
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • 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
    • 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
    • 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

  • This invention relates generally to toothbrushes and more particularly is directed to a bristle bearing head, supporting stem and handle construction providing accessibility to the interproximal spaces and beneath the free gingival margin and enabling the user to more easily manipulate the head on the buccal, labial and lingual surfaces of the maxillary and mandibular teeth.
  • the invention is intended to provide a toothbrush which provides at least some of the requirements set out in the preceding paragraph.
  • a toothbrush construction characterised in that it has the capability for simultaneously penetrating the interproximal spaces and under the free gingival margins of the teeth of both the maxillary and mandibular arches and comprises a stem extending from a handle , a leading end section of said stem having a longitudinal axis, said leading end section terminating in an elongated bristle bearing head having a major axis (x-x) extending between opposite ends of said head and perpendicular to said longitudinal axis, said bristle bearing head comprising a back having a substantially flat surface , a plurality of bristles projecting from said flat surface in a predetermined arrangement bilaterally symmetrical with respect to a minor axis of said head said stem longitudinal axis being coaxial with said minor axis, said predetermined bristle arrangement including a wedge-like configuration having an apex located adjacent each of said opposite ends the length of said head between said apices being such as to position each apex at
  • a toothbrush construction having bristles which are shaped, sized, located and flexible for reaching into the interproximal spaces and under the free gingival margins and which are particularly adapted for penetrating those relatively inaccessible areas of the molars and bicuspids from the lingual cavity and the buccal cavity where the accumulation of plaque is relatively heavy, and which promote the desirable rotary brushing motion while enabling the teeth of both the maxillary and mandibular arches to be brushed simultaneously.
  • the invention contemplates a stem which extends from a handle and has a leading end section terminating in an elongated bristle bearing head having a major axis perpendicular to the longitudinal axis of the stem section.
  • the bristle bearing head is formed as a back having a flat surface from which a plurality of embedded bristles project in a predetermined arrangement which is bilaterally symmetrical with respect to the transverse minor axis of the head.
  • the bristle arrangement which may be clustered in a plurality of tufts, includes wedge-like configurations of such tufts having one of the tufts located as an apex adjacent each opposite end of the back.
  • the length of the head along the major axis spaces the bristles comprising the apices a distance apart to facilitate penetration into the interproximal spaces and free gingival margins of the teeth of both the maxillary and mandibular arches simultaneously when the stem, through handle manipulation, is disposed along the occlusal plane with the mouth in an open, teeth brushing, position.
  • the tuft forming the apex of the wedge-like configuration is centrally located with respect to the rounded end of the head on the major axis, or, where the ends of the head are tapered, the tuft forming the apex is located along the trailing or leading side edges of the head.
  • the slope of the wedge-like configuration away from each apex conforms to the scallopped contour of the gingival edges thereby improving the ability of the bristles to penetrate beneath the free margins thereof and those bristles at the apices to penetrate into the interproximal spaces at the gum-line.
  • a trailing end section of the stem has a stub shaft which removably telescopes into the axial bore of the handle providing for separation and relative rotation therebetween.
  • the trailing stem section may be angularly disposed to the leading stem section to offset the latter from the longitudinal axis of the handle about which the relative rotation of the stem on the stub shaft occurs to improve handling and orientation of the head in the mouth of the user.
  • An area of bristles adjacent the transverse minor axis of the head may be cut to a shorter length than those bristles located toward the opposite ends of the head including the bristles in the wedge-like configuration of tufts in order to facilitate the flexing of the latter in achieving their hereinbefore described intended simultaneous penetration.
  • a modified hourglass-shaped head provides additional wedge-like configurations of bristles and tufts spaced apart along the leading and trailing side edges of the head between the opposite ends thereof to facilitate interproximal and free gingival margin penetration when the major axis of the head is held parallel to the occlusal plane to render an additional capability to the toothbrush which is particularly useful in cleaning the front teeth.
  • 10 generally denotes a toothbrush constructed to embody the invention comprising a head 11 terminating the leading end of supporting stem 15 which extends from handle 20.
  • Head 11 is formed as a back 12 which may be moulded integrally with stem 15 of a suitable plastics material, well known in the art, and supports, by embedment therein, a plurality of bristles 13 arranged to project from the flat underside 12a thereof in a tuft pattern hereinafter described.
  • Back 12, and thus the contour of head 11, is generally elongate, having the length or major axis x-x thereof extending perpendicular to the plane y-y in which stem 15 and handle 20 extend, as seen in Figure 2.
  • the opposite ends 12b of back 12 are rounded, while the sides therebetween are substantially parallel providing a uniform width between the rounded opposite ends 12b.
  • Bristles 13 are suitably arranged on perpendicularly extending head 11 to achieve the accessibility to the interproximal spaces and to the free gingival margins for the purpose and in the manner hereinbefore described.
  • bristles 13 may be embedded as tufts 14 in accordance with well known brush manufacturing methods. As seen in Figure 3, the arrangement of tufts 14 is bilaterally symmetrical with respect to the minor axis of head 11, which axis is seen to lie in plane y-y. Thus, two rows R1 of four tufts 14 each are located adjacent each side of plane y-y.
  • a second two rows R2 of four tufts 14 each and a single row R3 of three tufts 14 are located in sequence on each side of plane y-y beyond rows R1 and a single terminal tuft R4 is positioned adjacent each rounded opposite end 12b centralized on the major axis x-x.
  • Rows R3 with terminal tuft R4 provide a wedge-like contour on each end of head 11 with terminal tuft R4 as an apex.
  • bristles 13 in the tufts 14 which are centrally located on back 12 in the four rows R1 may be shorter than those in rows R2, R3 and R4, as seen in Figure 4.
  • Bristles 13 may be natural or made of a suitable synthetic material, such as nylon (trademark), and have a softness permitting flexure of the ends thereof sufficient for entering beneath the free gingival margins when normal brushing pressure is applied against the surface of the teeth.
  • head 11 constructed to embody the invention may be perpendicularly mounted on a toothbrush stem and handle which are disposed coaxially with each other, an improved construction is shown as stem 15 and handle 20 in Figures 1 and 2.
  • the leading end section 16 of stem 15, which terminates at the outer end in back 12, has its longitudinal axis fixed in perpendicular relation to the major axis x-x of head 11.
  • the opposite or inner end of section 16 is integrally formed with an offsetting, angularly disposed section 17 and tapers slightly in thickness from its inner end toward head 11, as seen in Figure 1 leading end section 16 being of a length to substantially position section 17 entirely on the exterior of the lips of the user in all operative positions of head 11.
  • section 16 may be broader at the inner end than section 17 and also tapers toward head 11, as seen in Figure 2. This enlargement of section 16 adjacent section 17 provides an upfacing surface area 16a to which pressure may be applied by the index finger or thumb for in turn exerting pressure by bristles 13 against the teeth.
  • a cylindrical stub shaft 18 terminates the rearward end of section 17 and is positioned with its axis extending parallel to the longitudinal axis of section 16.
  • Handle 20 which is cylindrically shaped and sized to fit the user's hand to be grasped thereby for manipulation of head 11 within the mouth in the preferred manner, has, at its leading end, an axial bore 21 sized to telescopingly engage stub shaft 18 for separation therefrom and rotation thereon.
  • handle 20 may be hollow, providing a storage chamber 22 fitted with a screw cap 23 which may have a central opening 23a for access to chamber 22 when cap 23 is in mounted position.
  • toothbrush 10 is comfortably gripped in the opposite hand, as for example, by three fingers being curled around handle 20 so that angularly disposed section 17 extends between the thumb and index finger for disposing leading end section 16 along the occlusal plane to readily position head 11 in the buccal or lingual cavity with bristles 13 engaging the teeth.
  • the jaws are held open sufficiently but in a relaxed fashion to position tufts R4 of the opposite ends of head 11 at the gum-line of both the mandibular and maxillary arches as illustrated in Figure 5.
  • the brushing to achieve the desired result of breaking up organized bacterial plaque, is performed by applying light pressure against the teeth sufficient to flex the ends of the longer bristles 13 in rows R2, R3 and R4.
  • Head 11 is moved in a circular motion, which more precisely may be eDiptical, with the major axis of the ellipse extending vertically and parallel to the major axis x-x of head 11.
  • the perpendicular disposition of the major axis x-x of head 11 with respect to stem 15 and the arrangement of tufts 14 in accordance with the invention is particularly adaptable to and facilitates this desirable brushing motion whereby the wedge-like contour of tufts 14 provided by rows R3 and R4 penetrates the interproximal spaces at the base of the teeth and by said flexure of bristles 13, the latter also extend beneath the free gingival margin along the entire width of each tooth.
  • the circular brushing motion is applied while slowly advancing stem 15 along the occlusal plane. In this manner the buccal surfaces of the teeth of the entire half of the mouth may be carefully brushed, and then by rotating stem 15 180° in handle 20, the lingual surfaces of the teeth of the same half of the mouth may likewise be brushed.
  • toothbrush 10 is not necessarily limited to the simultaneous brushing of the mandibular and maxillary arches but is also adaptable to brushing each arch individually by the same hereinbefore described rotary movement particularly when brushing the canines and incisors at the front of the mouth.
  • occlusal surfaces of the teeth are brushed by conventional short reciprocating strokes but utilizing the bristles 13 on one half of head 11, or, if desired, handle 20 may be held perpendicular to the arches thereby aligning axis x-x for reciprocal movement along the arches and brushing with the bristles of the entire head 11.
  • Head 11 of toothbrush 10 may be proportioned for the intended use thereof, for example, in a regular adult size and in a smaller child size.
  • an average overall length for back 12 of approximately 24 mm. and width of 10 mm. satisfy the size requirements of most adult mouths.
  • the length of the longer bristles 13 in rows R2, R3 and R4 are preferably 10 mm. while rows R1 are approximately 8 mm. long.
  • Figure 7 shows a modification thereof as head 41 having a back 42 integrally formed with stem 15.
  • the opposite ends 42a of back 42 instead of being rounded as ends 12a of back 12, are tapered forwardly so that terminal tuft R14 may be positioned adjacent the trailing side edge 42d which because of said taper is longer than leading side edge 42e.
  • Rows R1, R2 and R3 of tufts on back 42 are in the same arrangement as those on back 12, but terminal tuft R14, as the apex of the wedge-like configuration, is located to one side of major axis x-x.
  • tapered end 42a tapering from a longer trailing side edge 42d to a shorter leading side edge 42e as illustrated in Figure ? conforms to the contour of the buccal and lingual cavities in the molar region of the mouth facilitating brushing therein in the manner hereinbefore described and minimizing irritation to the mucco-buccal fold..
  • head 31 which comprises a back 32 integrally formed with stem 15 and having a flat underside 32a from which bristles 33 project in a predetermined pattern of tufts 34.
  • Back 32 has an hourglass contour which provides a pair of opposite end sections 32b, each having a rounded or circular shape, interconnected by a constricted midportion 32c.
  • tufts 34 are in a bilaterally symmetrical arrangement with respect to the minor axis of head 31, that is, with respect to plane y-y, whereby two rows R11 of two tufts 34 each are adjacent to each side of plane y-y.
  • rows R11 located in sequence on each side of plane y-y beyond rows R11 are one row R22 of four tufts 34, one row R33 of five tufts 34, one row R44 of four tufts and a single terminal tuft R5 positioned at the extreme opposite ends of back 32 on the major axis x-x.
  • toothbrush 10 when fashioned with head 31 having opposite end wedge-like configurations provided by tufts 34 located in rows R5 and R44, in a manner similar to that hereinbefore described for head 11, the tufts 34 located at the opposite ends of rows R22, R33 and R44 form a wedge-like configuration on the opposite sides of each end section 32b whereby head 31 may be applied to the teeth with major axis x-x extending parallel to the occlusal plane instead of perpendicular thereto by holding handle 20 in a vertical position.
  • Circular or elliptical brushing movement imparted by head 31 particularly for brushing the front teeth, will enable the tufts 34 in the wedge-like configurations located along the sides of head 31 to penetrate the interproximal spaces and the free gingival margins in a manner similar to that of the wedge-like configurations at the opposite ends of heads 11 and 31 when the latter are held perpendicular to the occlusal plane.
  • tufts 14 and 34 Fewer than the twelve rows of tufts 14 and 34 may be used within the scope of the invention as dictated by the dimensions of backs 12, 42 and 32 and the size of the respective tufts 14 and 34. Thus, one row R2 on each end of backs 12 and 42 and/or fewer than four rows R1 may be provided. Also, tufts 14 may be three abreast instead of the four abreast illustrated in Figures 3 and 7. Likewise, fewer than four rows R11 may be used on back 32 and tufts 34 in each of the rows R11, R22, R33 and R44 may be reduced in number.
  • the bristles 33 in rows R11 of back 32 may be shorter than those of the rows of end sections 32b in a manner similar to back 12. However, the transverse contour of bristles 33 of end sections 32b may be flat rather than convex as bristles 13 shown in Figure 1.
  • bristles 13 and 33 may be mounted in backs 12, 41 and 31, respectively, as unitary or pairs of bilaterally symmetrical tufts having configurations providing the wedge-like contours shown and described with respect to heads 11, 41 and 31.
  • the perpendicular relationship between major axis x-x of heads 11, 41 and 31 and the longitudinal axis of leading end section 16 and handle 20, embodying the invention also prevents, or at the very least greatly discourages, continued use of the undesirable brushing habit of taking long and hard strokes across the buccal and lingual surfaces of the teeth in a direction parallel to the occlusal plane.
  • handle 20 and stem 15 permits one handle to service a plurality of stems 15 each fitted with a toothbrush head embodying the invention, one or more for each member of the family, or also fitted with a gum massaging instrument such as a periodontal aid.
  • the offset feature of leading end 16 with respect to handle 20 may be preserved without the relative rotation of stem 15 in handle 20 by enlarging integrally formed stub shaft 18 to a convenient handle size.
  • Storage chamber 22 may be used to house a spool of dental floss (not shown), the leading end of which may be fed through central opening 23a in screw cap, 23, or, when traveling, a small tube or container of tooth paste or powder may be carried therein.

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  • Brushes (AREA)
EP19800302076 1980-06-19 1980-06-19 Brosse à dents facilitant l'accessibilité aux espaces interdentaires et aux bords des dents limitrophes des gencives Expired EP0042459B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19800302076 EP0042459B1 (fr) 1980-06-19 1980-06-19 Brosse à dents facilitant l'accessibilité aux espaces interdentaires et aux bords des dents limitrophes des gencives
DE8080302076T DE3069695D1 (en) 1980-06-19 1980-06-19 Toothbrush with improved interproximal and free gingival margin accessibility

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19800302076 EP0042459B1 (fr) 1980-06-19 1980-06-19 Brosse à dents facilitant l'accessibilité aux espaces interdentaires et aux bords des dents limitrophes des gencives

Publications (2)

Publication Number Publication Date
EP0042459A1 true EP0042459A1 (fr) 1981-12-30
EP0042459B1 EP0042459B1 (fr) 1984-11-28

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ID=8187189

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EP19800302076 Expired EP0042459B1 (fr) 1980-06-19 1980-06-19 Brosse à dents facilitant l'accessibilité aux espaces interdentaires et aux bords des dents limitrophes des gencives

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EP (1) EP0042459B1 (fr)
DE (1) DE3069695D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130252A1 (fr) * 1983-07-05 1985-01-09 Raymond Ernest Brosse à dents munie d'une tête de brosse interchangeable
FR2716781A1 (fr) * 1994-03-07 1995-09-08 Delattre Alain Brosse à dents.
WO1997004685A1 (fr) * 1995-07-27 1997-02-13 Noel Hensey Appareil de soins dentaires

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE81724C (fr) *
FR443435A (fr) * 1912-05-06 1912-09-24 Bernard Mendelovici Del Vinci Nouveau genre de brosses particulièrement destinées au nettoyage des pièces dentaires fixées à demeure dans la bouche
FR458512A (fr) * 1913-05-28 1913-10-13 Marcel Darcissac Brosse à dents pour le brossage simultané des deux arcades dentaires, et de leurs faces externe et interne
US1439279A (en) * 1921-05-19 1922-12-19 Howard R Ward Toothbrush
FR557261A (fr) * 1922-10-11 1923-08-06 Brosse à dents
US1647453A (en) * 1927-01-24 1927-11-01 Philip M Krantz Toothbrush
FR715589A (fr) * 1931-04-17 1931-12-05 Inclinaison et rotation variables et à remplacement
GB412414A (en) * 1932-07-01 1934-06-28 William Vachoux Improvements in teeth-cleaning appliances
GB484331A (en) * 1936-12-29 1938-05-04 Dermot Patterson Boyle Improvements relating to toothbrushes
FR940878A (fr) * 1944-10-17 1948-12-27 Perfectionnements aux brosses à dents
FR1075171A (fr) * 1952-08-28 1954-10-13 Brosse à dents
US3010131A (en) * 1960-05-23 1961-11-28 Kisky Christian Toothbrush
US3890986A (en) * 1973-04-29 1975-06-24 Den Tal Ez Mfg Co Teeth cleaning unit

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE81724C (fr) *
FR443435A (fr) * 1912-05-06 1912-09-24 Bernard Mendelovici Del Vinci Nouveau genre de brosses particulièrement destinées au nettoyage des pièces dentaires fixées à demeure dans la bouche
FR458512A (fr) * 1913-05-28 1913-10-13 Marcel Darcissac Brosse à dents pour le brossage simultané des deux arcades dentaires, et de leurs faces externe et interne
US1439279A (en) * 1921-05-19 1922-12-19 Howard R Ward Toothbrush
FR557261A (fr) * 1922-10-11 1923-08-06 Brosse à dents
US1647453A (en) * 1927-01-24 1927-11-01 Philip M Krantz Toothbrush
FR715589A (fr) * 1931-04-17 1931-12-05 Inclinaison et rotation variables et à remplacement
GB412414A (en) * 1932-07-01 1934-06-28 William Vachoux Improvements in teeth-cleaning appliances
GB484331A (en) * 1936-12-29 1938-05-04 Dermot Patterson Boyle Improvements relating to toothbrushes
FR940878A (fr) * 1944-10-17 1948-12-27 Perfectionnements aux brosses à dents
FR1075171A (fr) * 1952-08-28 1954-10-13 Brosse à dents
US3010131A (en) * 1960-05-23 1961-11-28 Kisky Christian Toothbrush
US3890986A (en) * 1973-04-29 1975-06-24 Den Tal Ez Mfg Co Teeth cleaning unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130252A1 (fr) * 1983-07-05 1985-01-09 Raymond Ernest Brosse à dents munie d'une tête de brosse interchangeable
FR2716781A1 (fr) * 1994-03-07 1995-09-08 Delattre Alain Brosse à dents.
WO1997004685A1 (fr) * 1995-07-27 1997-02-13 Noel Hensey Appareil de soins dentaires
GB2320181A (en) * 1995-07-27 1998-06-17 Noel Hensey A dental care unit

Also Published As

Publication number Publication date
EP0042459B1 (fr) 1984-11-28
DE3069695D1 (en) 1985-01-10

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