- Efficient cleaning

　　Compared to manual brushing, electric toothbrushes in the degree of cleanliness will be more guaranteed, manual brushing by virtue of manual often brush incomplete phenomenon, the cleaning effect will not be ideal, and electric toothbrushes using rotation, vibration and other modes, in the mechanical cleaning of the tooth surface at the same time will vibrate to get rid of dental bacteria.

-Stabilize the strength

Manual brushing strength all depends on their own hand speed, which will lead to the strength will not be light and heavy difficult to control, may be some people think that vigorous brushing can achieve better cleaning effect, in fact, this will not only damage the gums, but also damage the teeth.

The use of electric toothbrushes can ensure that the strength of the uniform, reduce the vigorous brushing of gums, teeth damage, but also more energy-saving and easy.

- Scientific duration

According to dentists, it is best to brush your teeth for 3 minutes, but this is something that few people do, and many will do it haphazardly, often without achieving a clean result. Many electric toothbrushes have a timing function, which ensures that the brushing time is kept at 2 minutes.

There are also some with a time change reminder, every 30 seconds to replace the cleaning area, sufficient brushing time can ensure that the teeth are thoroughly clean, that is, to improve the efficiency of brushing also to ensure clean.

The electric toothbrush on the market is divided into a total of: rotary mechanical, sonic vibration type, ultrasonic make three types of electric toothbrush.

- Scientific duration

　　According to dentists, it is best to brush your teeth for 3 minutes, but this is something that few people do, and many will do it haphazardly, often without achieving a clean result. Many electric toothbrushes have a timing function, which ensures that the brushing time is kept at 2 minutes.

　　There are also some with a time change reminder, every 30 seconds to replace the cleaning area, sufficient brushing time can ensure that the teeth are thoroughly clean, that is, to improve the efficiency of brushing also to ensure clean.

　　The electric toothbrush on the market is divided into a total of: rotary mechanical, sonic vibration type, ultrasonic make three types of electric toothbrush.

- Rotating mechanical type

　　Rotating mechanical type mainly through the toothbrush internal motor brush head to rotate, through the drive shaft drive the brush head to do left and right circular motion, strengthen the friction on the teeth, the teeth surface cleaning effect is better, the general speed of more 7000-9000, although the cleaning strength is good, but long-term use of teeth wear and tear.

- Sonic vibration type

　　Sonic vibration type is the use of motor-driven brush head for vertical high-frequency oscillation, the average frequency of vibration can reach 31000 / times, and will have about 4-5mm vibration amplitude, such an amplitude can let the toothbrush in the brush at the same time the toothpaste and water combined into a large number of bubbles, deep into the teeth to achieve a better cleaning effect.

- Ultrasonic type

　　Ultrasonic electric toothbrush is the use of ultrasonic energy through the brush head to the teeth, so that the teeth around the cavitation effect to clean, cleaning range whether the tooth surface, periodontal or crevice can be cleaned intact, but generally higher prices, so the popularity is not widespread.

　　From the point of view of cleaning strength, the mechanical rotary type is the best cleaning effect, but the wear and tear on the teeth, while the sonic vibration type is not as high as the mechanical rotary type cleaning force, but it is more gentle on the teeth.

　　Choose electric toothbrush also depends on its brush head, brush head for oral cleaning is also crucial, its material, size, hard and soft, gap is very important.

- Bristle hardness

　　Bristle hardness is generally divided into soft, neutral, hard and other three hardness, for different oral cavity, we use the bristle hardness is naturally different, soft for sensitive oral cavity, but the cleaning strength may not be high, and hard bristles are likely to damage the gums, tooth surface because of improper operation, generally speaking, the universal oral cavity using neutral hardness of the bristles is just right.

- Bristle material

　　The bristles of toothbrushes on the market are mostly nylon bristles, which are more flexible, uniform and hard than pig brushes, more conducive to oral health care, and the shape of nylon bristles are constantly evolving, upgraded to diamond, triangle and other shapes, more adapted to the oral space.

　　The largest bristle company on the market today is DuPont.

- Bristle size

　　According to the American Dental Association, the length of the toothbrush head should be 2.5 to 3 cm, the width of 0.8 to 1 cm, with 2 to 4 rows of bristles, each row of 5 to 12 bundles of bristles, the front end of the toothbrush head should be round and blunt.

　　You can refer to the above data, many big brand bristles on the market are based on the curvature of the mouth to design a different brush head shape, in addition, we should also pay attention to the top of the bristles when choosing the bristles are rounded, so as not to choose a poor quality bristle material damage to the mouth.

　　About the electric toothbrush hardware part has been all described, but the purchase of electric toothbrushes there is a focus, is the electric toothbrush brand.

　　Brand is often the core of a product, from a brand of past products we can see their process, technology, after-sales service, etc., so it is best to choose a reputable electric toothbrush brand.

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