Please select the most similar patent number from A, B, C and D. Which number is?
An electric toothbrush based on LED light care, comprising a handle (1), a brush handle (2) being provided at a front end of the handle (1), a brush head (3) being provided at a front end of the brush handle (2), and a drive mechanism (4) for driving the vibration of the brush handle (2) and a circuit board (5) being provided within the handle (1). An LED light-emitting panel (6) is provided within the brush head (3), and a plurality of LED chips (60) are provided on the LED light-emitting panel (6), and the LED light-emitting panel (6) and the drive mechanism (4) are electrically connected to the circuit board (5) respectively. The plurality of LED chips (60) are used for emitting red light, infrared light and/or ultraviolet light, bristles (30) are provided on the brush head (3), and the brush head (3) and/or the bristles (30) are light guide materials. Under the driving of the drive mechanism (4), the brush handle (2) and the brush head (3) vibrate therewith, thereby realizing the cleaning effect of teeth, and meanwhile, under the irradiation of the LED light-emitting panel (6), an oral cavity can receive light care by means of red light, infrared light, ultraviolet light or composite light from any combination of the three, so that the light care for the oral cavity is achieved while a user is cleaning the teeth, meeting user&#39;s requirements and saving user&#39;s expense.
A: An electric toothbrush capable of cleaning the teeth in all directions, comprising a handle, a connecting portion provided at a front end of the handle, a motor, an outer brush plate (3), an inner brush plate (4), bristles (5) that are provided on inner surfaces of the inner brush plate (3) and the outer brush plate (4), and an inner bottom casing (6); further comprised is an outer bottom casing (7) that is connected by the connecting portion; an outer rotating plate (8) that is movably disposed within the outer bottom casing (7) and that is connected to the motor; an outer crank (9) that is rotatably connected to the outer rotating plate (8) and the outer plate disk (4) and that is located within the outer bottom casing (7); an inner crank (10) and an inner rotating plate (11) that are disposed within the inner bottom casing (6); the inner crank (10) is rotatably connected to the inner brush plate (4) and the inner rotating plate (11) respectively; at least one guiding rod (13) that is located at a side of a connecting rod is disposed on the outer bottom casing (7), at least one longitudinal strip-shaped inner guiding hole (401) is provided within the inner brush plate (4), and at least one longitudinal strip-shaped outer guiding hole (301) is provided within the outer brush plate (3); the inner brush plate (4) and the outer brush plate (3) may slide relative to the guiding rod (13). Driven by the motor, the bristles (5) on the inner brush disk (4) and the outer brush disk (3) may achieve cleaning in all directions for the inner and outer walls of the teeth, the gaps between the teeth, and so on; the present invention is convenient to use and has high cleaning efficiency.
B: A toothbrush comprises a brush handle (1) and bristles (4), and also comprises a number of flexible brush heads (3) stuck in the front of the handle (1), and a removable head frame (2) for the flexible brush (3) to mount on the handle (1). Bristles (4) are provided on the brush heads (3). The flexibility vertical to the brush handle of the toothbrush is improved, and meanwhile by using moderate bristles, bristles can go through each slot of teeth to clean the tartar. While brushing teeth, by adjusting different forces of brushing, gum is massaged and by replacing the single broken brush head, the waste and pollution of changing the whole toothbrush are reduced.
C: A liquid toothbrush, comprising a brush holder (1) and a brush head (2). A fluid pipe (11) is provided inside the brush holder (1); the fluid pipe (11) is provided with liquid spray holes (22) at the inner wall of brush head (2); the fluid pipe (11) is provided with a liquid inlet (12) at the tail of brush holder (1); the liquid inlet (12) is connected to a pressurized liquid supplier or a household tap water valve by means of a connecting pipe; brush hair (21) of the brush head (2) of the toothbrush is arranged in rows; the brush hair (21) and the liquid spray holes (22) are arranged at intervals; the brush hair (21) of the brush head (2) is designed into rows, so that an obvious vertical brushing effect can be yield during tooth brushing. Moreover, in combination with an oral healthcare fluid sprayed or washed out of the liquid spray holes (22) of the brush head (2), and with the brushing function of the brush hair in being freely separated forward and backward and in freely entering diastema and slits between teeth, foreign matters on gingivae and teeth and in diastema and slits between the teeth can be cleaned.
D: A new toothbrush comprises a head (1), bristles (2) and a handle (3). The bristles (2) are disposed on a lower surface (4) of the head (1). A front end (5) of the handle (3) is mounted on a side surface of the head (1). The length direction of the handle (3) is perpendicular to the length direction of the head (1). The handle (3) comprises a handle front portion (6) and a handle rear portion (7). The longitudinal section of the handle front portion (6) has at least one first arc (8). The circle center of the first arc (8) is below the arc. The vertex of the first arc (8) and a rear endpoint (10) are both above an upper surface (11) of the head (1). The handle (3) and the head (1) form a substantially T-shaped structure, so that the contact area between the bristles (2) and the teeth is increased, and people can use the vertical brushing method to brush the teeth by following actions and habits thereof, thereby cleaning the teeth more effectively. When the vertical brushing method is used to brush the inner side surface of the teeth, the front portion (6) of the handle (3) arches towards the inside of the oral cavity, so that the bristles (2) can be maximally perpendicular to the inner side surface of the teeth, thereby better meeting the requirements of the vertical brushing method.
Answer: A