WO1997025898A1 - Toothbrush - Google Patents
Toothbrush Download PDFInfo
- Publication number
- WO1997025898A1 WO1997025898A1 PCT/AU1997/000025 AU9700025W WO9725898A1 WO 1997025898 A1 WO1997025898 A1 WO 1997025898A1 AU 9700025 W AU9700025 W AU 9700025W WO 9725898 A1 WO9725898 A1 WO 9725898A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- brushing face
- toothbrush
- bristles
- brushing
- face
- Prior art date
Links
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
- 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
- A46B9/028—Bristle profile, the end of the bristle defining a surface other than a single plane or deviating from a simple geometric form, e.g. cylinder, sphere or cone
-
- 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 a toothbrush.
- Toothbrushes which have been used in the past have traditionally comprised a generally straight handle which is provided with a brush head at one end where the brush head supports a set of bristles which define a brushing face and in which the brushing face is generally planar.
- the design of toothbrushes have been refined to provide handles which are anatomically designed such that when brushing teeth from a "forward position, the brush head is in general alignment with the buccal and lingual surfaces of posterior teeth.
- a principal difficulty with such toothbrushes resides in the substantially planar configuration of the brushing face which, without a substantial distortion of the bristles, prevents intimate contact of the brustrheads with the arcuate surface of the tooth and in particular witrrthe cavities which exist in the profile of teeth, particularly in the regions of the inclines whictrexist in the side faces of the teeth and the embrasures or spillways which are provided between adjacent teeth.
- the inventior ⁇ esides in a t ⁇ ultibiush having a head supported from one end of the handle, said head -supporting a set of bristles extendiny fium one side of the head in closely spaced i elation whereby the outer ends of the bristles jointly provide a brushing face, said brushing face being concave in profile along both the longitudinal axes of the brushing face and the transverse axes of the brushing face between the ends of the brushing face to provide a recessed surface.
- said brushing face comprises two zones located along the longitudinal axis wherein each zone is provided with said recessed surface and the zones are separated by an intermediate raised portion. The raised portion is generally the same height as each end of the brushing face. It is a furtherpreferred that tli zunes are of a generally circular or ellipsoidal corifiguration in plan.
- the toothbrush is intended for the cleaning of primary teeth of infants and young children.
- the principal difficulty with prior ait toothbrushes which has been referred to above relates to the substantially planar configuration of the brushing face which is particularly inappropriate for use in the cleaning the primary teeth of infants and children which have a bulbous cervical ridge area on the buccat surfaces of the molar teeth.
- the embodiment ofihe invention resides in a toothbrush having a head supported from one end ofthe handle, said head supporting a set of bristles extending from one side ofthe head in closely spaced relation whereby the outer ends of the bristles jointly provide a brushing face, said brushing face being concave in profile alony ⁇ uth the tu ⁇ yiludi ⁇ al axes of the brushing face and the transverse axes ofthe blushing face between ttie ends of the brushing face to provide a recessed surface, said recessed surface bei ⁇ y circular in plan.
- the recessed surface is of a part spherical shape.
- said brushing face comprises two zones located along the longitudinal axis wherein each zone is provided with said recessed surface and the zones are separated by an intermediate raised portion.
- the raised portion is generally the same height as each end of the brushing face.
- the free- ends of the outer bristles in the region of outer periphery ofthe brushing face are directed radially inwardly with respect to the brushing face.
- this is effected by shaping the outer bristles such that they are curved.
- the outer bristles are of a linear configuration and are mounted to the head such that they are directed radially with respect to the brushing face.
- Figure 1 is a side-elevation of the head of the toothbrush according to the first embodiment
- Figure 2 is an end elevation of the brush head according to the first embodiment
- Figure 3 is a plan view of the brush head according to the first embodiment
- Figure 4 is a cross-sectional view of the brush head along line 4-4 of Figure 1 ;
- Figure 5 is a sectional view of the brush head along line 5-5 of Figure 1 ;
- Figure 6 is a sectional view along line 6-6 of Figure 2;
- Figure 7 is a schematic view of a brush head ac ⁇ ji ⁇ i ⁇ y to the first embodiment in use in brushing both the buccai and lingual surfaces of the posteriorteeth of a set ⁇ fteeth in the lower jaw;
- Figure 8 is a schematic side -elevation of a brush head according to the first embodiment in use in cleaning the upper surfaces of the teeth shown in Figure 7;
- Figure 9 is a cross-section of a tooth and brush head along line 9-9 of Figure 8.
- Figure 10 is a plan view of the toothbrush and teeth shown at Figure 8.
- Figure 11 is a side elevation ofthe brushhead of a toothbrush according to the second embodiment
- Figure 12 is a plan view of the brushhead according to the second embodiment
- Figure 13 is a cross-sectional view of the brushhead along line 13-13 of Figure 12;
- Figure 14 is a schematic view of a brushhead according to the second embodiment in use in brushing both the buccat and lingual surfaces of the posterior teeth of a set of teeth inihe lower jaw;
- Figure 15 is a schematic side elevation of a brushhead according to the second embodiment in use in cleaning the upper surfaces of the teeth shown in Figure 14;
- Figure 16 comprises a front elevation of a molar tooth and brushhead according to the second embodiment illustrating the contact of the toothbrush with the buccal (B) and lingual (L) surfaces of the primary molars.
- Figure 17 is a plan view of the toothbrush and teeth shown at Figure 15.
- Figure 18 is a sectional side view of a toothbrush according to the third embodiment.
- Figure 19 is a plan view ofthe t ⁇ tlibiush of Figure 18.
- the same reference numerals are used in respect of corresponding elements or components.
- the first embodiment-shown at Figures 1 to 10 is directed to a toothbrush which is of an anatomical design such that it is able to more intimately contact both the buccal and lingual surfaces ofthe posteriorteeth.
- the first embodiment comprises a brush head 11 which is supported from one end of a handle 12.
- the handle ofthe first embodiment is contoured such that when the posterior teeth are being brushed from a forward position (ie. with the handle projecting forwardly from the mouth), the brush head is substantially parallel to the line of the teeth as shown at Figure 7.
- the brush head 11 supports a set of closely spaced bristles 13 which are mounted to the head in a conventional manner such-thatthey project from the face ofthe head which is intended to be located adjacent the teeth.
- the bristles 13 are arranged in two-zones 15 and 16 which are located end to end along the longitudinal axis of the brush such that they are contiguous with each other to define an intermediate portion 17.
- the outer ends of the bristles 13 define the brushing surface of the toothbrush.
- the lengths ofthe bristles are such that each zone 15 and 16 of the brushing face has a generally recessed configuration.
- the recessed configuration of the bristles is such that between each end and the intermediate portion 17, the brushing face is transversely concave as shown at Figure 4 and between each end ofthe inlei mediate portions 17, the brush head is longitudinally concave as shown at Figure 6.
- the degree of concavity which is defined between the ends of each zone and the intermediate portions 17 is such, that the recessed surface so provided, substantially conforms with the curved profile of the posteriorteeth both in the fore and aft axis of the mouth but also between the gingival margin and the crown ofthe teeth.
- the brushing face is able to engage a pair of adjacent teeth and is able to accommodate to the surface of the teeth without a substantial distortion of the bristles and undue pressure and abrasion being applied to portions ofthe teeth.
- the ends of the zones 15 and 16 and the intermediate portion 17 of the brushing face are able to be received in the occiusal and incisal embrasures or spillways between the sides of the teeth, the embrasures between the crowns of the teeth, the cusp inclines in the crowns of the teeth and the central fissure in the teeth.
- the brusrr head presents an anatomically complementary configuration to the various curved surfaces ofthe teeth and in particular can be readily received in locations where food particles can lodge to facilitate cleaning of such areas.
- the bristles located in the region ofthe outerperiphery of the brushing face can be configured such that their free ends are directed substantially radially towardsihe brushing surface 16.
- the configuration of the brushing face and the contoured configuration of the handle 12 ensures that the toothbrush when used appropriately can simulate the cleaning action which inthe past has only been possible by visiting the dentist for dental prophylaxis utilising clea ⁇ ingi>rushes.
- the second embodiment shown ⁇ t Figures 11 to 17 is directed to a toothbrush which is of an anatomical design such that it is able to more intimately contact both the buccal and lingual surfaces ofthe posterior primary teeth.
- the second embodiment comprises a brushhead 11 which is supported from one end of a handle 12.
- the handle of the second embodiment is contoured such that when the posterior teeth aie being brushed from a forward position (ie. with the handle projecting forwardly fium the mouth), the brushhead is substantially parallel to the line of the teeth as shown at Figure 17.
- the brushhead 11 supports a set of closely spaced bristles 13 which are mounted to the head in a conventional manner such that they project from the face of the handle which is intended to be located adjacent the teeth.
- the bristles 13 are arranged to define a circular array.
- the outer ends of the bristles 13 define the brushing surface 15 of the toothbrush.
- the lengths of the bristles is such that the brushing face has a generally recessed configuration which is such that, the brushing face 15 defines a generally part spherical concave surface.
- the degree of concavity is such- that the brushing iace conforms substantially with the curved profile of the posteriorteeth both in the fore and aft axis of the mouth but also between the gingival margin and the crown ofthe teeth and in particular with the bulbous curved ridges on the buccal surfaces of the primary molars.
- outer bristles 17 located ⁇ rthe region of the outer periphery of the brushirrg-face-are configured such that their free-ends are directed substantially radially towardsthe brushing surface 16.
- the brushing face 15 and as shown at Figures 14, 15, 16 and 17 the brushing face is able to engage apair of adjacent teeth and is able to accommodate to the surface of the teeth without a substantial distortion of the bristles and without undue pressure and abrasion being applied to some portions of the surface of the teeth.
- the edges of the brushing face are-able to be received in the ⁇ cctusal and incisal embrasures or spillways-betweerrthe sides ofthe teeth, the embrasures between the crowns of the teeth, the cusp inclines in the crowns of the teeth and the central fissure in the teeth.
- the surface of a tooth can be contacted substantially completely by the brushing face with a substantially even pressure to effect the cleaning of the entire surface ofthe teeth including the inclines and spillways.
- the brushhead presents an anatomically complementary configuration to the various curved surfaces of the teeth and in particular can be readily received in locations where food particles can lodge and dental plaque accumulates to facilitate cleaning of such areas.
- the configuration of the brushing face and the contoured configuration of the handle 12 ensures that the toothbrush when used appropriately can simulate the cleaning action which in the past has only been possible by visiting the dentist for dental prophylaxis utilising rotating cleaning brushes mounted in a motor-driven handpiece.
- Figures 18 and 19 illustrate a third embodiment of this invention which has a brushhead with two sets of bristles 13 which are-each of a similarform to one set of bristles of the second embodiment and which are arranged such that the are positioned side by side along the longitudinal axis ofthe handle and such that they are closely adjacent to be contiguous to define a brushing face 15 having two recessed portions of the same form as the brushing face of the first embodiment separated by a raised intermediate portion 17.
- This third embodiment would be suitable for children with a mixed dentition of primary and permanent teeth.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU13612/97A AU701367B2 (en) | 1996-01-19 | 1997-01-17 | Toothbrush |
JP9525532A JP2000503219A (en) | 1996-01-19 | 1997-01-17 | toothbrush |
EP97900158A EP0877569A1 (en) | 1996-01-19 | 1997-01-17 | Toothbrush |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPN7652A AUPN765296A0 (en) | 1996-01-19 | 1996-01-19 | Toothbrush |
AUPN7652 | 1996-01-19 | ||
AUPN8751 | 1996-03-15 | ||
AUPN8751A AUPN875196A0 (en) | 1996-03-15 | 1996-03-15 | Toothbrush for primary teeth |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997025898A1 true WO1997025898A1 (en) | 1997-07-24 |
Family
ID=25645100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU1997/000025 WO1997025898A1 (en) | 1996-01-19 | 1997-01-17 | Toothbrush |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0877569A1 (en) |
JP (1) | JP2000503219A (en) |
CA (1) | CA2242863A1 (en) |
WO (1) | WO1997025898A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6041468A (en) * | 1998-03-12 | 2000-03-28 | Colgate-Palmolive Company | Prophy toothbrush |
EP1415572A1 (en) * | 2002-10-31 | 2004-05-06 | CJ Corporation | Toothbrush having soft and hard bristles |
US7954191B2 (en) * | 2002-09-27 | 2011-06-07 | Colgate-Palmolive Company | Toothbrush |
US10021961B2 (en) | 2014-11-19 | 2018-07-17 | The Procter & Gamble Company | Head for an oral care implement |
CN110418590A (en) * | 2017-03-14 | 2019-11-05 | 高露洁-棕榄公司 | Oral care implement |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5922420B2 (en) * | 2012-01-31 | 2016-05-24 | 花王株式会社 | toothbrush |
JP3192545U (en) * | 2014-06-09 | 2014-08-21 | ファミリー・サービス・エイコー株式会社 | Toothbrush with one tuft |
JP6712120B2 (en) * | 2015-04-28 | 2020-06-17 | ライオン株式会社 | toothbrush |
JP6827096B2 (en) * | 2019-12-02 | 2021-02-10 | ライオン株式会社 | toothbrush |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1916641A (en) * | 1931-09-02 | 1933-07-04 | Seeliger Hermann | Toothbrush |
GB1396634A (en) * | 1973-09-19 | 1975-06-04 | Ugolotti C | Toothbrushes |
DE2433956A1 (en) * | 1974-07-15 | 1976-02-05 | Paetzold Christoph Dr Med Dent | Electric or standard toothbrush with curved contours - includes a tip for improved cleaning of spaces between teeth etc. |
DE2512256A1 (en) * | 1975-03-20 | 1976-09-30 | Zedelmaier Helmut M Dr Med Den | Tooth brush with plastic body - has arched brush head with bristles moulded into inner surface |
DE2847261A1 (en) * | 1978-10-31 | 1980-05-08 | Dolinsky Josef | TOOTHBRUSH |
AU6330786A (en) * | 1985-09-04 | 1987-03-24 | Pastoll, E. | Tooth-brushes |
DE3607200A1 (en) * | 1986-03-05 | 1987-09-10 | Themann Juergen | Toothbrush with circular brush head |
US4847936A (en) * | 1988-01-04 | 1989-07-18 | Contour, Inc. | Toothbrush |
EP0655209A1 (en) * | 1993-11-22 | 1995-05-31 | AVANTGARDE S.p.A. | Toothbrush |
-
1997
- 1997-01-17 CA CA 2242863 patent/CA2242863A1/en not_active Abandoned
- 1997-01-17 WO PCT/AU1997/000025 patent/WO1997025898A1/en not_active Application Discontinuation
- 1997-01-17 JP JP9525532A patent/JP2000503219A/en active Pending
- 1997-01-17 EP EP97900158A patent/EP0877569A1/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1916641A (en) * | 1931-09-02 | 1933-07-04 | Seeliger Hermann | Toothbrush |
GB1396634A (en) * | 1973-09-19 | 1975-06-04 | Ugolotti C | Toothbrushes |
DE2433956A1 (en) * | 1974-07-15 | 1976-02-05 | Paetzold Christoph Dr Med Dent | Electric or standard toothbrush with curved contours - includes a tip for improved cleaning of spaces between teeth etc. |
DE2512256A1 (en) * | 1975-03-20 | 1976-09-30 | Zedelmaier Helmut M Dr Med Den | Tooth brush with plastic body - has arched brush head with bristles moulded into inner surface |
DE2847261A1 (en) * | 1978-10-31 | 1980-05-08 | Dolinsky Josef | TOOTHBRUSH |
AU6330786A (en) * | 1985-09-04 | 1987-03-24 | Pastoll, E. | Tooth-brushes |
DE3607200A1 (en) * | 1986-03-05 | 1987-09-10 | Themann Juergen | Toothbrush with circular brush head |
US4847936A (en) * | 1988-01-04 | 1989-07-18 | Contour, Inc. | Toothbrush |
EP0655209A1 (en) * | 1993-11-22 | 1995-05-31 | AVANTGARDE S.p.A. | Toothbrush |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6041468A (en) * | 1998-03-12 | 2000-03-28 | Colgate-Palmolive Company | Prophy toothbrush |
US7954191B2 (en) * | 2002-09-27 | 2011-06-07 | Colgate-Palmolive Company | Toothbrush |
EP1415572A1 (en) * | 2002-10-31 | 2004-05-06 | CJ Corporation | Toothbrush having soft and hard bristles |
WO2004039207A1 (en) * | 2002-10-31 | 2004-05-13 | Cj Corp. | Toothbrush having soft and hard bristles together |
US10021961B2 (en) | 2014-11-19 | 2018-07-17 | The Procter & Gamble Company | Head for an oral care implement |
US10537169B2 (en) | 2014-11-19 | 2020-01-21 | The Procter & Gamble Company | Head for an oral care implement |
CN110418590A (en) * | 2017-03-14 | 2019-11-05 | 高露洁-棕榄公司 | Oral care implement |
US11185152B2 (en) | 2017-03-14 | 2021-11-30 | Colgate-Palmolive Company | Oral care implement |
Also Published As
Publication number | Publication date |
---|---|
JP2000503219A (en) | 2000-03-21 |
CA2242863A1 (en) | 1997-07-24 |
EP0877569A1 (en) | 1998-11-18 |
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