U.S. patent application number 12/314999 was filed with the patent office on 2009-06-25 for toothbrush.
Invention is credited to Byung-Taek Lee.
Application Number | 20090158543 12/314999 |
Document ID | / |
Family ID | 40024197 |
Filed Date | 2009-06-25 |
United States Patent
Application |
20090158543 |
Kind Code |
A1 |
Lee; Byung-Taek |
June 25, 2009 |
Toothbrush
Abstract
A toothbrush is disclosed, in which wing hairs are arranged in a
V-shape in left and right sides with respect to the center hairs
which are the center toothbrush hairs planted in forward and
backward directions in a toothbrush head, and the V-shaped wing
hairs of the left and right sides are arranged in a X-shape, and
auxiliary hairs are arranged between the forward and backward wing
hairs in part of the X-shaped toothbrush hairs. With the above
arrangements, a contact surface area of each tooth is widened, and
a more effective tooth brushing can be performed in three fossas
(mesial fossa (mesial pit), a central fossa (central pit) and a
distal fossa (distal pit)), a buccal developmental groove, a
lingual developmental groove, an accessory groove, a triangular
groove and a buccal groove of a buccal aspect, which correspond to
a dental caries portion, an interproximal space in which a food
debris might be accumulated, and a contact area peripherals of a
buccal aspect in which a food debris might be impacted, so dental
caries and tooth diseases (periodontitis) can be advantageously
prevented, and a pain due to a temporomandibular disorder and a
facial muscle fatigue might be reduced and recovered by protruding
a cushion layer from an upper side of a toothbrush.
Inventors: |
Lee; Byung-Taek;
(Yangpyeong-gun, KR) |
Correspondence
Address: |
ROBERT E. BUSHNELL & LAW FIRM
2029 K STREET NW, SUITE 600
WASHINGTON
DC
20006-1004
US
|
Family ID: |
40024197 |
Appl. No.: |
12/314999 |
Filed: |
December 19, 2008 |
Current U.S.
Class: |
15/167.1 |
Current CPC
Class: |
A46B 15/0087 20130101;
A46B 9/04 20130101; A46B 5/00 20130101 |
Class at
Publication: |
15/167.1 |
International
Class: |
A46B 9/04 20060101
A46B009/04 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 21, 2007 |
KR |
10-2007-0135327 |
Claims
1. A toothbrush comprising first and sixth toothbrush hairs that
are arranged in parallel in the forward and backward directions
with their wing hairs being formed in an X shape with respect to a
central hair.
2. The toothbrush of claim 1, wherein said first and sixth
toothbrush hairs are configured with each wing hair being formed
straight.
3. The toothbrush of claim 1, wherein said first and sixth
toothbrush hairs are configured with each wing hair being widened
in an outward direction as being formed in a curve shape.
4. The toothbrush of claim 1, wherein said central hair of each
wing hair is protruded by 1-2 mm while being formed in a cross
shape with its center being formed in a conical shape.
5. The toothbrush of claim 4, wherein said central hair of each
wing hair is protruded by 1-2 mm while being formed in a circular
shape with its center being formed in a conical shape.
6. The toothbrush of claim 4, wherein said central hairs are
arranged at an interval of 2 mm, respectively.
7. The toothbrush of claim 1, wherein the length from a wing hair
of a front part of the first toothbrush hair to a wing hair of a
rear part of the sixth toothbrush hair is 1.7 cm.
8. The toothbrush of claim 1, wherein said neighboring wing hairs
are formed in a diamond shape with their intervals being less than
2 mm.
9. The toothbrush of claim 1, wherein a width between the wing
hairs of the front and rear parts of the second and fifth
toothbrush hairs is wider than the width of the wing hairs of the
front and rear parts of the neighboring toothbrush hairs.
10. The toothbrush of claim 1, wherein said fourth through sixth
toothbrush hairs form a line connecting the ends of toothbrush
hairs and are configured with their both ends being horizontal and
being narrowed with a high inclination to reach a 1/3 portion of
the length from a central fossa to buccal and lingual developmental
grooves and being sharply inclined toward the center of the central
fossa.
11. The toothbrush of claim 1, wherein said first through third
toothbrush hairs are configured with their both ends being higher
than the center portion in an asymmetrical curve with respect to a
1/2 portion in one direction based on a central axis.
12. The toothbrush of claim 1, wherein an auxiliary hair of the
front part is formed between the wing hairs of the front and rear
parts of the second toothbrush hair.
13. The toothbrush of claim 12, wherein said auxiliary hair of the
front part has the same height and width as the central portion of
the central hair and are spaced apart as much as the width of the
central portion of the central hair.
14. The toothbrush of claim 1, wherein an auxiliary hair of the
rear part is formed between the wing hairs of the front and rear
parts of the fifth toothbrush hair.
15. The toothbrush of claim 14, wherein said auxiliary hair of the
rear part is configured with its height being lowered in an outward
direction.
16. The toothbrush of claim 1, wherein a barrier wall is protruded
between the toothbrush hairs for preventing an inclination of the
toothbrush hairs.
17. The toothbrush of claim 1, wherein said toothbrush hair is
formed of a plate body.
18. The toothbrush of claim 17, wherein said plate body is formed
of rubber or a group of hairs.
19. A toothbrush, comprising: a first cushion layer which is formed
on an upper side of a toothbrush head in a dome shape; and a second
cushion layer which is formed on an upper side of the first cushion
layer in a band shape and is made of a certain material softer than
that of the first cushion layer.
Description
CLAIM OF PRIORITY
[0001] This application makes reference to, incorporates the same
herein, and claims all benefits accruing under 35 U.S.C. .sctn.119
from an application earlier filed in the Korean Intellectual
Property Office on 21 Dec. 2007 and there duly assigned Serial No.
2007-0135327.
TECHNICAL FIELD OF THE INVENTION
[0002] The present invention relates to a toothbrush which is able
to significantly reduce dental caries, periodontitis, pain due to
temporomandibular disorder or the like which are known as three
dental diseases, and in particular to a toothbrush featured in that
wing hairs are arranged in a V-shape in left and right sides with
respect to the center hairs which are the center toothbrush hairs
planted in forward and backward directions in a toothbrush head,
and the V-shaped wing hairs of the left and right sides are
arranged in a X-shape, and auxiliary hairs are arranged between the
forward and backward wing hairs in part of the X-shaped toothbrush
hairs. With the above arrangements, a contact surface area of each
tooth is widened, and a more effective tooth brushing can be
performed in three fossas (mesial fossa (mesial pit), a central
fossa (central pit) and a distal fossa (distal pit)), a buccal
developmental groove, a lingual developmental groove, an accessory
groove, a triangular groove of the occlusal aspect of the
maxillomandibular molars and a buccal groove of a buccal aspect
which correspond to a dental caries portion, an interproximal space
in which a food debris might be accumulated, and a contact area
peripherals of a buccal aspect in which a food debris might be
impacted, so dental caries and tooth diseases (periodontitis) can
be advantageously prevented, and a pain due to a temporomandibular
disorder and a facial muscle fatigue might be reduced and recovered
by protruding a cushion layer from an upper side of a
toothbrush.
DESCRIPTION OF BACKGROUND ART
[0003] Generally, as shown in FIG. 1, occlusal aspect of a human's
molar is formed in a concave shape consisting of three fossas,
buccal developmental groove, lingual developmental groove,
accessory groove, and triangular groove. The above fossa consists
of mesial fossa, central fossa and distal fossa formed in the
outside of mesial pit, central pit and distal pit, respectively.
The above fossas are linked via a central developmental groove and
consist of a buccal developmental groove and a lingual
developmental groove extended from a central fossa (here, a lingual
developmental groove of the occlusal aspect of the maxillary molar
is extended from a distal fossa), and an accessory groove and a
triangular groove extended from a mesial fossa, and an accessory
groove and a triangular groove extended from a distal fossa.
[0004] However, the conventional toothbrush is formed in a straight
arrangement structure in a leftward and rightward direction of a
head, so a tooth contact surface area is narrow, and an effective
tooth brushing work cannot be performed with respect to a concave
portion of a molar occlusal aspect. In addition, it is impossible
to effectively brush an interproximal space in which a molar buccal
aspect food debris is accumulated, and a buccal contact area
peripheral in which a food debris might be impacted.
SUMMARY OF THE INVENTION
[0005] Accordingly, it is an object of the present invention to
provide a toothbrush featured in that first a contact surface area
of each tooth is widened, and a more effective tooth brushing can
be performed in three fossas (mesial fossa (mesial pit), a central
fossa (central pit) and a distal fossa (distal pit)), a buccal
developmental groove, a lingual developmental groove, an accessory
groove, a triangular groove of the occlusal of the maxillomanbular
molars and a buccal groove of a buccal aspect which correspond to a
dental caries portion, an interproximal space in which a food
debris might be accumulated, and a contact area peripherals of a
buccal aspect in which a food debris might be impacted, so dental
caries and tooth diseases (periodontitis) can be advantageously
prevented, and second a pain due to a temporomandibular disorder
and a facial muscle fatigue might be reduced and recovered by
protruding a cushion layer from an upper side of a toothbrush.
[0006] To achieve the above objects, there is provided a toothbrush
featured in that first through sixth toothbrush hairs having a
X-shaped wing hair formed with respect to central hairs are
arranged in parallel in the forward and backward directions of a
toothbrush hair, and a toothbrush hair has straight wing hairs, and
the above toothbrush hairs are configured to form a diamond shape
with a curve and to widen in an outward direction for thereby well
matching with a structure that an accessory groove and a triangular
groove extended from a mesial fossa, a central fossa and a distal
fossa of maxillomandibular molars of a natural tooth are
widened.
[0007] To achieve the above objects, there is provided a toothbrush
which is characterized in that a central hair of each wing hair is
formed in a + shape with its center being formed in a conical shape
with a protruded height of 1-2 mm, and a central hair of each wing
hair is formed in a circular shape with its center being formed in
a conical shape with a protruded height of 1-2 mm, and each central
hair has a 2 mm interval from its neighboring hair, and the length
from a front wing hair of a first toothbrush hair to a rear wing
hair of a sixth toothbrush hair is 1.7 cm, and a wing hair is less
than a 2 mm interval from its neighboring hair, and the widths
between the front and rear wing hairs of the second and fifth
toothbrush hairs is wider than the width of the front and rear wing
hairs of the first, third, fourth and sixth toothbrush hairs, and
the first through third toothbrush hairs are configured with their
both ends being higher than their centers, and with an asymmetrical
curve configuration being formed with respect to a 1/2 portion in
one direction about the central axis, and fourth and sixth
toothbrush hairs are configured with their both sides being
parallel and being inclined toward their central portions and being
narrowed, and a front auxiliary hair is formed between the front
and rear wing hairs of the second toothbrush, and the front and
rear auxiliary hairs have the same height and width as the central
portion of the central hair and are spaced apart as much as the
width of the central portion of the central hair, and a rear
auxiliary hair is formed between the front and rear wing hairs of
the fifth toothbrush, and the rear auxiliary hair is configured
with its height being gradually decreased in an outward direction,
and a barrier wall is formed between the toothbrush hairs so as to
prevent the inclination of toothbrush hair, and a toothbrush is
formed of a plate body, and a plate body is formed of a rubber or a
group of hairs, and a dome shaped cushion layer is formed on an
upper side of the toothbrush head, and a second cushion layer
smoother than the first cushion layer is formed on an upper side of
the first cushion layer in a band shape.
EFFECTS
[0008] The present invention is advantageously characterized in
that toothbrush hairs are arranged in a V-shape in left and right
sides with respect to a central hair which is a central toothbrush
hair in the forward and backward directions of a toothbrush head,
and the V-shaped toothbrush hairs of the left and right sides are
arranged in a X-shape, and an auxiliary hair is arranged between
the front and rear wing hairs of the second and fifth toothbrush
hairs. The above construction well matches with a concave structure
(fossa, accessory groove, triangular groove, buccal developmental
groove, lingual developmental groove, buccal groove of a buccal
aspect) of a tooth which corresponds to a dental caries portion. In
addition, it is possible to more effectively remove the
accumulation of food debris and to more effectively brush an
interpoximal space having a poor brushing effect, and a contact
area that a food debris might be easily impacted therein.
[0009] In addition, a pain due to a temporomandibular disorder and
a facial muscle fatigue might be reduced and recovered by
protruding a cushion layer from an upper side of a toothbrush.
[0010] Since a barrier wall is formed between toothbrush hairs for
thereby preventing an inclination of toothbrush hairs, and a
toothbrush brand might be formed therein.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] A more complete appreciation of the invention, and many of
the attendant advantages thereof, will be readily apparent as the
same becomes better understood by reference to the following
detailed description when considered in conjunction with the
accompanying drawings in which like reference symbols indicate the
same or similar components, wherein:
[0012] FIG. 1 is a view illustrating an occlusal aspect of
maxillary first and second molars.
[0013] FIG. 2 is a plane view of the present invention.
[0014] FIG. 3 is an exemplary view of a second toothbrush hair
among first through third toothbrush hairs according to the present
invention.
[0015] FIG. 4 is an exemplary view of a fifth toothbrush hair among
fourth through sixth toothbrush hairs according to the present
invention.
[0016] FIG. 5 is an exemplary view of a central hair according to
the present invention.
[0017] FIG. 6 is a side view of a molar for showing an application
of a third toothbrush hair among first through third toothbrush
hairs according to the present invention.
[0018] FIGS. 7 and 8 are views of a buccal aspect of a molar for
showing an application of a toothbrush according to the present
invention.
[0019] FIG. 9 is an exemplary view of first through third
toothbrushes according to another embodiment of the present
invention.
[0020] FIG. 10 is an exemplary view of fourth through sixth
toothbrushes according to another embodiment of the present
invention.
[0021] FIG. 11 is a plane view of another embodiment of the present
invention.
[0022] FIG. 12 is a plane view of further another embodiment of the
present invention.
[0023] FIG. 13 is a plane view of an upper structure of a
toothbrush head according to the present invention.
[0024] FIG. 14 is a front view of FIG. 13.
DETAILED DESCRIPTION OF THE INVENTION
[0025] The preferred embodiments of the present invention will be
described with reference to the accompanying drawings.
[0026] FIG. 2 is a view illustrating a toothbrush according to the
present invention. As shown therein, the toothbrush comprises a
head 10 featured in that X-shaped first through sixth toothbrush
hairs 11, 12, 13, 14, 15 and 16 are arranged in parallel in forward
and backward directions. Central hairs a1, a2, a3, a4, a5 and a6
are formed in the centers of the first through sixth toothbrush
hairs 11, 12, 13, 14, 15 and 16, respectively. Front auxiliary
hairs d1 and e1 are arranged in both sides of the second toothbrush
hair 12, and rear auxiliary hairs d2 and e2 are arranged in both
sides of the fifth toothbrush hair 15.
[0027] The first toothbrush hair 11 is configured as a front wing
hair b1 and a rear wing hair b2 are arranged in series in a V-shape
in one side of the central hair a1, and a front wing hair c1 and a
rear wing hair c2 are formed in series in a V-shape in the opposite
side, which are arranged in a X-shape with respect to the central
hair a1.
[0028] The second toothbrush hair 11 is configured as a front wing
hair b3 and a rear wing hair b4 are arranged in series in a V-shape
in one side of the central hair a2, and a front wing hair c3 and a
rear wing hair c4 are formed in series in a V-shape in the opposite
side, which are arranged in a X-shape with respect to the central
hair a2.
[0029] The front auxiliary hairs d1 and e1 are formed between the
front and rear wing hairs b3 and b4, c3 and c4.
[0030] The third toothbrush hair 13 is configured as a front wing
hair b5 and a rear wing hair b6 are arranged in series in a V-shape
in one side of the central hair a3, and a front wing hair c5 and a
rear wing hair c6 are formed in series in a V-shape in the opposite
side, which are arranged in a X-shape with respect to the central
hair a3.
[0031] The fourth toothbrush hair 14 is configured as a front wing
hair b7 and a rear wing hair b8 are arranged in series in a V-shape
in one side of the central hair a4, and a front wing hair c7 and a
rear wing hair c8 are formed in series in a V-shape in the opposite
side, which are arranged in a X-shape with respect to the central
hair a4.
[0032] The fifth toothbrush hair 15 is configured as a front wing
hair b9 and a rear wing hair b10 are arranged in series in a
V-shape in one side of the central hair a5, and a front wing hair
c9 and a rear wing hair c10 are formed in series in a V-shape in
the opposite side, which are arranged in a X-shape with respect to
the central hair a5.
[0033] The rear auxiliary hairs d2 and e2 are formed between the
front and rear wing hairs b9 and b10, c9 and c10.
[0034] The sixth toothbrush hair 16 is configured as a front wing
hair b11 and a rear wing hair b12 are arranged in series in a
V-shape in one side of the central hair a6, and a front wing hair
c11 and a rear wing hair c12 are formed in series in a V-shape in
the opposite side, which are arranged in a X-shape with respect to
the central hair a6.
[0035] The first through third toothbrush hairs 11, 12 and 13 among
the first through sixth toothbrush hairs 11, 12, 13, 14, 15 and 16
belong to the front part 1, and the fourth through sixth toothbrush
hairs 14,15 and 16 belong to the rear part 11.
[0036] The central hairs a1, a2, a3, a4, a5 and a6 form a cross
shape. As shown in FIG. 5, the central portions are formed in a
conically protruded shape with the central portion being configured
to have a height 1-2 mm higher than the height of the normal
toothbrush hairs.
[0037] The construction that six central hairs a1, a2, a3, a4, a5
and a6 are provided in a cross shape with their central portion
being formed in conical shapes is provided for enhancing an
adaptation with a mesial pit, a central pit and a distal pit, which
correspond to a dental caries portion and are positioned in the
center portions of a mesial fossa, a central fossa, and a distal
fossa of the occlusal aspect of the maxillomandibular molars. The
above construction might be adapted to a buccal groove which
corresponds to a dental caries frequent area of a buccal aspect of
the mandibular molars.
[0038] In the above construction, the first through sixth
toothbrush hairs 11, 12, 13, 14, 15 and 16 might be configured as
each wing hair b1 and c2, b2 and c1, b3 and c4, b4 and c3, b5 and
c6, b6 and c5, b7 and c8, b8 and c7, b9 and c10, b10 and c9, b11
and c12, and b12 and c11 is formed in a straight line shape or is
formed in a curve shape as shown in FIGS. 9 and 10. Since each wing
hair b1 and b2, b3 and b4, b5 and b6, b7 and b8, b9 and b10 and b11
and b12 and each wing hair c1 and c2, c3 and c4, c5 and c6, c7 and
c8, c9 and c10 and c11 and c12 might be formed in a V-shape
matching with each accessory groove and each triangular groove of
the occlusal aspect of the molar, they are preferably formed in a
straight line shape or a curve shape.
[0039] As shown in FIG. 3, the second toothbrush hair 12 of the
front part 1 is configured with the rear wing hairs b4 and c4 being
higher in their both sides, and with the centers being
asymmetrically lower.
[0040] The central hair a2 is protruded from the center, and front
auxiliary hairs d1 and e1 are formed both sides of the center hair
a2.
[0041] The front auxiliary hairs d1 and e1 are protruded in a
rectangular shape and are protruded with the same height as the
central hairs a1, a2 and a3 for thereby effectively brushing the
buccal groove of the buccal aspect of the maxillomandibular
molars.
[0042] In addition, when brushing in the up and down directions
with respect to the buccal aspect of the maxillomandibular molars,
it is possible to enhance cleanness of the buccal groove of the
buccal aspect with the helps of the protruded portions of the
central hairs a1, a2 and a3.
[0043] The first and third toothbrush hairs 11 and 13 of the front
part I are formed in the same configuration as the second
toothbrush hair 12 except for their widths.
[0044] The first through third toothbrush hairs 11, 12 and 13 are
configured with their both sides being higher than the center and
are configured in an asymmetrical shape with respect to a 1/2
portion in one direction depending in the central axis.
[0045] As shown in FIG. 6, in case that the length of crown is 7.5
mm, the width from the height of contour of the buccal aspect to
the cusp tip of the buccal aspect is 3.5 mm, the width from the
height of contour of the buccal aspect to the cervical line of the
buccal aspect is 0.75 mm, since the straight distance from the
cervical line of the buccal aspect to the cusp tip of the buccal
aspect is 8 mm, the whole width of the second toothbrush hair 12 is
set 8 mm, and it looks like a dome shape when viewing the outer
appearance of the buccal aspect from the mesial aspect of the
mandibular first molar. Since the curve of the buccal aspect is an
asymmetrical curve with respect to a 1/2 portion in one direction
with based on the central axis, the first through third toothbrush
hairs 11, 12 and 13 are matched with the curve surface of the
buccal aspect, so an asymmetrical curve is obtained.
[0046] As shown in FIG. 6, in case of the molar, when the standard
length of the crown is 7.5 mm, the straight distance from the
cervical line of the buccal aspect to the cusp tip of the buccal
aspect is 8 mm, the whole width of each second toothbrush hair 12
is 8 mm. Since the curve surface of the buccal aspect is an
asymmetrical curve surface with respect to a 1/2 portion in one
direction, an asymmetrical curve is assumed so as to match the
first through third toothbrush hairs 11, 12 and 13 with the curve
surface of the buccal aspect.
[0047] In the above construction, since the buccal aspect of the
molar is formed in an asymmetrical curve including the cervical
third (1/3), which is the height of contour, the first through
third toothbrush hairs 11, 12 and 13 are formed in an asymmetrical
curve in a 1/2 portion in one direction with respect to the central
axis.
[0048] As shown in FIG. 4, the fifth toothbrush hair 15 of the rear
part II is configured as the front wing hairs b9 and c9 are
horizontal in their both sides and are narrowed following a sharp
inclination to reach about 2.3 mm in the buccal and lingual
developmental grooves in a 1/3 portion (central fossa) of the
lengths of the auxiliary hairs d2 and e2 of the rear part and then
form an inclined portion sharp toward the center of the central
fossa while forming a line which connects the ends of toothbrush
hairs.
[0049] The central hair a5 is protruded from the center, and the
auxiliary hairs d2 and e2 of the rear part are formed in both sides
of the central hair a5.
[0050] The fourth and sixth toothbrush hairs 14 and 16 of the rear
part 11 are formed in the same shape as the fifth toothbrush hair
15 except for the difference in width.
[0051] In the above construction, the auxiliary hairs d2 and e2 of
the rear part are lowered in their heights with an inclination in
both sides from the 1-2 mm point of the lower side in the tops of
the central hairs a4, a5 and a6. The auxiliary hairs d2 and e2 of
the rear part are configured for an effective tooth brushing work
with respect to the buccal and lingual grooves of the occlusal
aspect of the maxillomandibular molars.
[0052] In the above construction, when brushing the teeth with the
auxiliary hairs d2 and e2 of the rear part in the forward and
backward directions with the head 10, it is possible to enhance an
adaptation with respect to the buccal and lingual developmental
grooves of the occlusal aspect along with reliable cleanness. In
addition, when brushing in the left and right directions, it is
possible to enhance an adaptation with respect to the buccal and
lingual developmental grooves of the occlusal aspect.
[0053] The heights of the auxiliary hairs d2 and e2 of the rear
part are lowered with a certain inclination in both sides with
respect to the 1-2 mm point of the lower side from the top of the
central hair a5 for thereby well being matched with the buccal and
lingual developmental grooves which are raised with an inclination
in the directions of the buccal and lingual aspects from the
central fossa of the actual teeth.
[0054] In the above construction, the first through six toothbrush
hairs 11, 12, 13, 14, 15 and 16 might be formed of plate bodies or
rubber plate bodies or might if necessary be formed of the groups
of hairs.
[0055] As shown in FIGS. 11 and 12, a barrier wall 18 formed of a
plastic or rubber material is formed between the toothbrush hairs
11, 12, 13, 14, 15 and 16 of the head 10, and a toothbrush brand
might be formed therein.
[0056] The barrier wall 18 has a height of about 3 mm from the
surface of the head for thereby preventing the inclination of the
toothbrush hairs 11, 12, 13, 14, 15 and 16 for thereby effectively
preventing the inclination of the same.
[0057] As shown in FIGS. 13 and 14, a dome shaped first cushion
layer 19 is formed on the upper side of the head 10, and a second
cushion layer 19a formed in a band shape might be further formed on
the upper side of the first cushion layer 19. The first cushion
layer 19 is preferably formed of a soft rubber, and the second
cushion layer 19a is preferably formed of a very soft rubber.
[0058] In the above construction, the second cushion layer 19a is
made of a rubber softer than that of the first cushion layer 19 for
minimizing uneasy feeling with respect to a mucous membrane of an
inner side of the soft cheek.
[0059] The first and second cushion layers 19 and 19a are
configured to reduce the pains of users who suffer from a
temporomandibular disorder in the muscle due to a mental stress,
while helping the facial muscle fatigue recovery of the users who
work using facial muscles.
[0060] In the above constructions according to the present
invention, the first through third toothbrush hairs 11, 12 and 13
of the front part I and the fourth through sixth toothbrush hairs
14, 15 and 16 of the rear part II can be used for effectively
brushing the occlusal aspect and buccal aspect of the
maxillomandibular molars for thereby preventing dental caries and
reliably removing the food debris between the teeth and gum.
[0061] Since a barrier wall 18 is formed between the toothbrush
hairs 11, 12, 13, 14, 15 and 16, it is possible to form a brand of
a toothbrush, and it is possible to prevent an inclination of the
toothbrush hairs.
[0062] Since the first and second cushion layers 19 and 19a are
protruded from the upper side of the head 10, a cheek massage
function can be performed. In addition, it is possible to obtain a
pain reduction of temporomandibular by prompting the removal of
pain substance and wastes by massaging the muscles stressed by over
mental stress with the helps of a tooth brushing work and a cheek
massaging and stretching function with respect to the patients who
suffer from temporomandibular. When the present invention is
adapted to a user who needs a lot of conversation with others (for
example, teacher), it is possible to help recover the facial muscle
fatigues due to a facial muscle extension effect during tooth
brushing.
[0063] The first through sixth toothbrush hairs 11, 12, 13, 14, 15
and 16 are formed in the head 10 of the present invention is a V
shape or a X shape, and the central hairs a1, a2, a3, a4, a5 and a6
are formed in the centers of the toothbrush hairs 11, 12, 13, 14,
15 and 16. Here, the central hairs a1, a2, a3, a4, a5 and a6 are
marched with six fossas of the occlusal aspect of the
maxillomandibular first and second molars, respectively.
[0064] So, it is possible to more cleanly brush the mesial fossa
(mesial pit), central fossa (central pit) and distal fossa (distal
pit) with the helps of the central hairs a1, a2, a3, a4, a5 and a6.
In addition, it is possible to more cleanly brush the buccal
developmental groove, lingual developmental groove, accessory
groove, triangular groove and buccal groove of the buccal aspect
with the helps of the front and rear wing hairs and auxiliary hairs
of each toothbrush hair.
[0065] The wing hairs b1 and b2, b3 and b4, b5 and b6, c1 and c2,
c3 and c4, and c5 and c6 of the front part I allow the wider
contact surface area of the buccal aspect of the maxillomandibular
molars.
[0066] The widths of the wing hairs b2 and b3, b4 and b5, c2 and
c3, and c4 and c5 are below 2 mm, so it is possible to more
reliably brush the interproximal space which has a lot of food
debris accumulation.
[0067] As shown in FIGS. 7 and 8, the wing hairs b2 and b3, b4 and
b5, c2 and c3, and c4 and c5 are configured to more effectively
brush the contact area between the teeth. When it is adapted to the
buccal aspect of the maxillomandibular molars, the interproximal
space (space portion between teeth) of the lower side of the
contact area of the buccal aspect of the maxillomandibular first
and second molars is configured based on the distance from the
cervical line (boundary of crown and tooth root) to the cervical
line of the neighboring teeth. The width of the space between the
maxillary first molar and the maxillary second molar is 2.0 mm, and
the width of the space between the mandibular first molar and the
mandibular second molar is 2.2 mm.
[0068] Since the cervical line is covered by gum, the width of the
interproximal space of the low side of the contact area of buccal
aspect of molars corresponds to the width of the gingival line
(boundary of crown and gum) between neighboring teeth, and the
width of the gingival line between the neighboring teeth is
narrower than the cervical line. The width of the space between the
teeth is getting narrower in the upward direction. When the width
of each wing hair b2 and b3, b4 and b5, c2 and c3, and c4 and c5
are below 2 mm, wing hairs with interval being below 2 mm might be
efficiently used for thereby enhancing a cleanness in space between
the teeth having a lot of food debris. So, it is possible to more
effectively brush the contact area of the buccal aspect in which
the food impaction occurs.
[0069] The wing hairs b2 and c2 allow a more effective brushing
operation with respect to the rear most portion (distal aspect) of
the maxillomandibular molars.
[0070] The wing hairs b7 through b12 and c7 through c12 of the rear
part 11 is configured as the accessory groove and the triangular
groove extended from the mesial fossa, the central fossa, and the
distal fossa to the buccal direction and the lingual direction of
the occlusal aspect are formed in a V shape, so it is possible to
more effectively brush the occlusal aspect of the maxillomandibular
molars along with an advantage that approaching is easier than a
conventional toothbrush.
[0071] For example, when brushing the teeth in the forward
direction, it is possible to effectively brush the accessory groove
in the mesial slope of the cusp and the distal triangular groove of
the occlusal aspect with the helps of the front wing hairs b7, b9,
b11 and c7, c9, c11. When brushing the teeth in the backward
direction, it is possible to more effectively brush the accessory
groove in the distal slope of the cusp and the mesial triangular
groove of the occlusal aspect with the helps of the rear wing hairs
b8, b10, b12 and c8, c10, c12. Brushing the teeth in the left and
right directions is effective as well.
[0072] In the above operation, the portions between the wing hairs
b3 and b4, c3 and c4, b9 and b10 and c9 and c10 are widened to form
a V shape, so the width between the accessory grooves extend from
the central fossa is wider than the width between the accessory
groove and triangular groove extend from mesial and distal fossa,
whereby it is possible to obtain a wider angle depending on the
widths of the accessory groove of the occlusal aspect of the
maxillomandibular molars of the actual natural teeth.
[0073] The front and rear auxiliary hairs d1 and e1, d2 and e2 are
formed between the wing hairs b3 and b4, c3 and c4, b9 and b10, and
c9 and c10, so the front auxiliary hairs d1 and e1 are applied to
the buccal groove of the buccal aspect along with the central hair
a2 when brushing the buccal aspect of the maxillomandibular molars
with respect to the head 10 in the left and right directions for
thereby enhancing cleanness. The rear auxiliary hairs d2 and e2 are
applied to the buccal developmental groove and lingual
developmental groove of the occlusal aspect when brushing the
occlusal aspect of the maxillomandibular molars with respect to the
head 10 in the forward and backward directions or in the left and
right directions for thereby enhancing cleanness.
[0074] In the above operation, the auxiliary hairs d1 and e1 of the
front part have the same heights as the central hair a2, and the
auxiliary hairs d2 and e2 of the rear part are configured with
their heights being lowered with an inclination with respect to the
lower 1-2 mm portion from the top of the central hair a5.
[0075] In other words, as shown in FIG. 6, the front part I of the
head 10 is formed of an asymmetrical curve connecting the end lines
of the toothbrush hair with respect to an outer look of the length
of the crown from the cervical area of the buccal aspect of the
mandibular first molar to the buccal cusp tip. So, when brushing
the teeth, an ideal adaptation can be obtained with respect to the
buccal aspect of the maxillomandibular molars. It is possible to
effectively brush the buccal aspect of the maxillomandibular molars
and the gum boundaries (gingival line).
[0076] For reference, when adapting to the buccal aspect of the
mandibular first molar using the curve which connects the ends of
the toothbrush hairs with respect to the buccal aspect of the
maxillary first molar, the maxillary first molar is has a more
straight buccal aspect curve (contour) as compared to the
mandibular first molar, so it has a poor adaptation to the buccal
aspect of the mandibular molar, and a cervical area adaptation is
degraded. The reason that the maxillary first molar has a more
straight buccal aspect curve as compared to the mandibular first
molar because the lengths of the crowns of the maxillomandibular
molars are same as 7.5 mm But the width from the height of contour
of the buccal aspect of the mandibular first molar to the cusp tip
of the buccal aspect is 3.5 mm, but the maxillary first molar is
2.2 mm. The width from the height of contour of the buccal aspect
of the mandibular first molar to the cervical line of the buccal
aspect of the mandibular first molar is 0.75 mm, but the maxillary
first molar is 0.5 mm In addition, the straight distance from the
cervical line of the buccal aspect of the mandibular first molar to
the cusp tip of the buccal aspect is 8 mm, but the maxillary first
molar is 7.7-7.8 mm.
[0077] In addition, the mandibular first molar has an internal
upward inclination, whereas the maxillary first molar is an
external downward inclination.
[0078] In the rear part 11, the accessory groove connected from the
mesial fossa, central fossa and distal fossa to the cusps in the
occlusal aspect of the maxillomandibular molars of an actual
natural tooth, and the triangular groove connected from the mesial
fossa and distal fossa to the mesiodistal marginal ridges are
connected in part up to about 1/3 of the width of the buccal and
lingual developmental groove like the connecting buccal
developmental groove and lingual developmental groove or accessory
groove or are neighboring very closely, and then are formed at the
same height as the auxiliary hairs d2 and e2 of the rear part till
about 1/3 of the length of the auxiliary hairs d2 and e2 of the
rear part with respect to the lower 1-2 mm point from the top of
the central hair a5. In addition, they are downwardly widened
depending on the depth (1.5 mm) and the width (5 mm) of the
intercuspital space and are formed horizontally after escaping from
the depth and width of the intercuspital space (depending on the
shape that accessory grooves and the mesiodistal triangular grooves
are upwardly connected), so that it is possible to more effectively
brush the accessory groove and triangular groove of the occlusal
aspect of the maxillomandibular molars of an actual natural
tooth.
[0079] The front part I has a width of 8 mm with respect to the
width of the toothbrush hair in the left and right directions about
the head 10. Here, the width of 8 mm is set so as to be adapted to
the straight distance from the cervical line of the buccal aspect
of the mandibular first molar to the cusp tip of the buccal
aspect.
[0080] The rear part II is configured as the toothbrush has a width
of 9 mm in the left and right directions with respect to the head
10. The width of 9 mm is preferably set as 2 mm are added by 1 mm,
twice, which is the width of the cusp of the buccal and lingual
cusps, to 5 mm of the distance between the buccal and lingual cusps
of the occlusal aspect of the maxillomandibular molars, and then 2
mm are further added by 1 mm, twice, to the same in consideration
of the widened width of the buccal and lingual cusps as the cusp
tip occurs due to mastication operation.
[0081] The rear part II might be well adapted to all types of
occlusal aspect from a young age to an old age.
[0082] The lengths of all the toothbrush hairs of the front and
rear parts I and II are set 1.7 cm. The above length is set as the
width of 1 mm of the mesial marginal ridge of the occlusal aspect
of the maxillary first molar and the distal marginal ridge of the
occlusal aspect of the maxillary second molar is subtracted from
the value obtained by adding 0.9 mm of the mesiodistal diameter of
crown of the maxillary second molar to 10 mm of the mesiodistal
diameter of crown of the maxillary first molar.
[0083] In addition, a more reliable toothbrush brushing contact
with the surfaces of teeth can be implemented by adapting the
value, which is obtained by subtracting the widths of the mesial
marginal ridge of the occlusal aspect of the mandibular first molar
and the distal marginal ridge of the occlusal aspect of the
mandibular second molar from the value obtained by adding the
mesiodistal diameter of crown (11.0 mm) of the mandibular first
molar and the mesiodistal diameter of crown (10.5 mm) of the
mandibular second molar adapting to the relatively shorter lengths
of the maxillary molars rather than adapting to the relatively
longer lengths of the mandibular molars when determining the
lengths of the toothbrush hairs, because as the toothbrush is
repeatedly used, it is worn out and widened, so it is preferred to
have the length of 1.7 mm which is proper for brushing the
maxillary first and second molars.
[0084] It is preferred that the distances between the central hairs
a1, a2, a3, a4, a5 and a6 is 2 mm, respectively. Since the distance
is matched with the distance from the mesial fossa to the central
fossa of the occlusal aspect of the maxillomandibular molars of an
actual natural tooth, and the distance from the central fossa to
the distal fossa, a clean tooth brushing can be possible with the
helps of an ideal approach.
[0085] As the present invention may be embodied in several forms
without departing from the spirit or essential characteristics
thereof, it should also be understood that the above-described
examples are not limited by any of the details of the foregoing
description, unless otherwise specified, but rather should be
construed broadly within its spirit and scope as defined in the
appended claims, and therefore all changes and modifications that
fall within the meets and bounds of the claims, or equivalences of
such meets and bounds are therefore intended to be embraced by the
appended claims.
* * * * *