EFFECTIVE AND TIMESAVING TOOTHBRUSH

Abstract

The surface of teeth to clean as shown (FIG. 1) and the type of toothbrushes as shown (FIG. 2, FIG. 3, FIG. 4) are closely related. Table 1 (Cleaning Effectiveness of Toothbrushes) in page 7 shows the relationship. For four section surfaces (S1, S2, S3, S4), “Type-B” toothbrush is best because of its effective and timesaving feature. For one section surface (S5), “Type-A” toothbrush is best because no other is effective. For the last remaining section surface (S6), “Type-C” toothbrush is best because no other is effective.

Description

CROSS REFERENCE TO RELATED APPLICATION

NONE

FEDERALLY SPONSORED RESEARCH

NONE

SEQUENCE LISTING

None

BACKGROUND—PRIOR ART

The following is a tabulation of some prior arts that presently appear relevant:

• • U.S. Pat. No. 5,499,421A 1996 Mar. 19 Twin headed toothbrush.
  • U.S. Pat. No. 6,381,794B1 2002 Jun. 7 Electric toothbrush having dual head with oscillatory movement.
  • U.S. Pat. No. 7,363,823B2 2008 Apr. 29 Twin-headed toothbrush.
  • U.S. Ser. No. 14/825,027 2015 Aug. 12 Multi-headed toothbrush.
  • U.S. Pat. No. 9,339,357B1 2016 May 17 Multi-headed toothbrush.

There exist various kinds of toothbrushes. Existing toothbrushes can clean some surfaces of the teeth, but none of them can effectively clean all corners and surfaces of the various kinds of teeth. The physical shapes of most existing toothbrushes are not suitable for cleaning different kinds of teeth. New toothbrushes, which have typical shape for effective cleaning for specific surfaces of the teeth, are necessary.

SUMMARY

The new toothbrushes provide improved effectiveness in toothbrushing. Three types of toothbrushes are necessary. First toothbrush, “Type-A” is the conventional, straight-headed type. This “Type-A” toothbrush already exists worldwide and is not covered by this patent. Second toothbrush, “Type-B” is a dual-headed type, and is covered by this patent. Third toothbrush, “Type-C” is a T-shaped type, and is covered by this patent.

Advantage

One advantage of the “Type-B” toothbrush is its novel positioning of its bristles (31,32—FIG. 3). The direction of the bristles is perpendicular to the surface of teeth while brushing. The perpendicular direction of the bristles helps to improve effectiveness in toothbrushing. Bristles between dual heads exert balanced pressure upon inside and outside surfaces of teeth while brushing. This function means effective toothbrushing. The “Type-B” toothbrush can brush inside and outside surfaces of teeth at the same time. By brushing both sides of teeth at the same time, the “Type-B” toothbrush saves toothbrushing time.

Another advantage of the “Type-B” toothbrush is that it can clean certain surfaces of teeth more effectively than any other toothbrush. For the specific (S3—FIG. 1) surface, “Type-B” toothbrush is more effective than “Type-A” toothbrushes in cleaning the surfaces of teeth, due to its dual-headed design and shape.

An advantage of the “Type-C” toothbrush is its novel positioning of the base of bristles (46—FIG. 4). The direction of the bristles is perpendicular to the inner and vertical surface of molar tooth (S6—FIG. 1). No other type of toothbrush can clean this surface of teeth effectively. The “Type-C” toothbrush is the only toothbrush for effective cleaning of inner and vertical surface of molar teeth (S6—FIG. 1).

DRAWING—FIGURE

FIG. 1—a perspective back view of teeth to clean.

FIG. 2—a perspective front view of the “Type-A” toothbrush with conventional, straight-headed shape.

FIG. 3—a perspective front view of the “Type-B” toothbrush with dual headed shape.

FIG. 3A—a sectional view of the pivot connection of handle and connector.

FIG. 4—a perspective front view of the “Type-C” toothbrush with a T-shaped head.

FIG. 4A—a sectional view of the base and handle.

DRAWING—REFERENCE NUMBER

• • S1—outer surface of teeth, right and left sides, upper and lower teeth included.
  • S2—inner surface of teeth, right and left sides, upper and lower teeth included.
  • S3—inner surface of teeth, front teeth, upper and lower teeth included.
  • S4—outer surface of teeth, front teeth, upper and lower teeth included.
  • S5—top surface of molars and canines, right and left sides, upper and lower teeth included. And top surface of front teeth, upper and lower teeth included.
  • S6—backside surface of molar, right and left sides, upper and lower teeth included.
  • 22—bristles
  • 24—handle
  • 26—base
  • 31—bristles
  • 32—bristles
  • 33—base
  • 34—base
  • 36—connector
  • 38—handle
  • 39—pivot screw
  • 42—bristles
  • 44—handle
  • 46—base

DESCRIPTION

FIG. 2 shows a toothbrush “Type-A”, which is a conventional, straight-headed type toothbrush that exists worldwide. Bristles 22 are perpendicular to a base 26. A handle 24 is parallel with the base 26. The direction of the bristles 22 is perpendicular to the handle 24. The material of the bristles 22 is soft and durable.

FIG. 3 shows “Type-B” toothbrush with dual heads, which saves time while toothbrushing. The material of bristles 31 and bristles 32 are the same as that of the bristles 22. Direction of the bristles 31 is parallel with that of the bristles 32. Size of a base 33 and a base 34 are the same. Shape of the base 33 and the base 34 are the same. Shape of the base 33 includes two rectangular corners and one semi-circular end. The base 33 is connected to one end of a connector 36, while the base 34 is connected to the other end of the connector 36. The base 33 and the base 34 are perpendicular to the connector 36. A pivot screw 39 connects a handle 38 to the center of the connector 36.

FIG. 3A shows a sectional view of the pivot screw 39, handle 38, and base 36. The pivot screw 39 allows the handle 38 to rotate freely. This free rotating function helps smooth movement of toothbrushing.

FIG. 4 shows a “Type-C” toothbrush. The material of bristles 42 is the same as that of the bristles 22. A base 46 is perpendicular to a handle 44. The bristles 42 are parallel with the handle 44. Right and left ends of the base 46 are semi-circular. The base 46 is connected to the handle 44 at the center of the base 46 and positioned so that the bristles 42 are parallel to the handle 44.

FIG. 4A shows a sectional view of “Type-C” toothbrush.

Operation

The basic idea of toothbrushing is to keep the bristles of toothbrush in contact with the surface of the teeth while brushing. To achieve this goal, keeping the toothbrush bristles perpendicular to the surface of the teeth is important. The effectiveness of toothbrushing depends on the perpendicular direction of the bristles to the surface of teeth.

Proper use of “Type-B” toothbrush occurs by keeping the bristles 31 touching one side of the teeth and the bristles 32 touching the other side of the teeth to clean. Then the toothbrush “Type-B” is moved, back and forth or right and left, while the connector 36 is touching the top surface of the teeth, perpendicular to the surface of teeth (S5—FIG. 1).

Proper use of “Type-C” toothbrush occurs by keeping the bristles 42 touching the back surface of the molar (S6—FIG. 1) and moving the toothbrush “Type-C” right and left.

Type of Toothbrush and Effectiveness of Toothbrushing.

The surface of teeth to clean, as shown in FIG. 1, and the type of toothbrush are related closely. Table 1 below shows the types of toothbrushes and the effectiveness of toothbrushing at various surfaces of teeth.

TABLE 1
Cleaning Effectiveness of Toothbrushes
Tooth-	Section surface to clean
brush	S1	S2	S3	S4	S5	S6	Effectiveness
Type-A	○	○	x	○	○	x x	○ = good
Type-B	○	○	○	○	x x	x x	x = poor
Type-C	x x	x x	x	x x	x x	○	x x = very poor

In section S3, the “Type-B” toothbrush is the only effective one. In section S5, the “Type-A” toothbrush is the only effective one. In section S6, the “Type-C” toothbrush is the only effective one. In section S1, S2, S4 “Type-A” toothbrush is effective, but “Type-B” toothbrush is, same effective and more timesaving, than “Type-A” toothbrush.

Above table shows that all three types of toothbrushes are necessary for effective toothbrushing. But the type of toothbrush to use depends on the surfaces of teeth. For section surfaces S1, S2, S3, and S4; the “Type-B” toothbrush is the best because of its effectiveness and timesaving feature. For section surface S5, the “Type-A” toothbrush is the best because no other is effective. For section surface S6, the “Type-C” toothbrush is the best because no other is effective.

Claims

1. A toothbrush “Type-B” comprises, a connector which connects two bases perpendicularly at its both ends, two groups of bristles which are embedded vertically on two bases and face each other, and a pivot screw which allows smooth movement of toothbrushing and connects a handle to the center of connector.

2. Two groups of bristles, which contact inside and outside surfaces of teeth perpendicularly and clean them at the same time, improve effectiveness of toothbrushing and save toothbrushing time.

3. A toothbrush “Type-C” comprises, a handle which connects a base perpendicularly, and a group of bristles which are embedded vertically on a base.

4. A group of bristles, embedded vertically on a base and contacting the teeth perpendicularly during toothbrushing, makes toothbrushing effective, whereby toothbrush “Type-B” cleans teeth effectively and saves toothbrushing time, and toothbrush “Type-C” cleans teeth effectively.