Recently, the China Consumers Association conducted a comparative test on 25 electric toothbrush products sold on the Internet and found that the cleaning power and battery performance of toothbrushes vary greatly.

Beijing News (Reporter Dai Xuan) "Toothache is not a disease, it hurts like hell." Oral problems are getting more and more attention from people, and the most important thing in daily oral care is brushing your teeth. Recently, the China Consumers Association conducted a comparative test on 25 electric toothbrush products sold on the Internet and found that the cleaning power and battery performance of toothbrushes vary greatly. The brands involve a total of 20 domestic and foreign brands. The unit price of the samples ranges from 60 yuan to 999 yuan. They were purchased from Jingdong Mall, Suning.com and Tmall Mall.

The difference in cleaning performance between samples is obvious

The cleaning performance of electric toothbrushes is the focus of consumers when purchasing. Electric toothbrushes rotate or vibrate at high frequencies, causing the bristles to contact the tooth surfaces and gaps per unit time. The contact area is larger and the number of contacts is greater, resulting in better cleaning results than manual brushing. The cleaning effect of

electric toothbrush is to apply vegetable puree on the tooth mold, then use the electric toothbrush to clean, and then score the remaining vegetable stain area of ​​each tooth on the dental mold. The lower the score, the better the cleaning effect. By comparing the cleaning effect of

25 samples on dental mold dirt, 16 samples have relatively good cleaning effects, 3 of which reach ★★★★★; 4 samples are not good, with poor cleaning effect, and the evaluation is only ★★ .

3 products with ★★★★★ include Oral-B BRAUN electric toothbrush 3765, Oral-B BRAUN electric toothbrush 3766, and ORACLEEN Xiaoou smart electric toothbrush WB1112. The only ★★ products in

4 include Royalstar sonic electric toothbrush D1006, Qianshan smart electric toothbrush Q5, j-style portable electric toothbrush 1835C, and Nanjiren electric toothbrush NBXOF56203.

cleaning effect comparison chart. Figure / China Consumers Association

The discharge time difference is 31 times

The charging time of the electric toothbrush battery is related to the product's rechargeable battery capacity and charging current. There are two main charging methods, contact and induction. The 25 electric toothbrushes in this comparative test are all rechargeable electric toothbrushes, including 13 contact rechargeable toothbrushes and 12 inductive rechargeable toothbrushes.

There are 23 electric toothbrush samples marked with charging time, and 2 models are not marked. Among the 23 electric toothbrushes marked with charging time, the actual charging time of 2 samples exceeded the nominal maximum time. Among the 25 electric toothbrushes, the shortest actual charging time is 1.4 hours for the Saky Pro sonic electric toothbrush G22; the longest is 29.5 hours for the PHILIPS electric toothbrush HX9362.

The discharge time of the electric toothbrush battery is related to factors such as battery capacity, motor power consumption, and circuit board power consumption. The larger the battery capacity, the longer the use time. The greater the power consumption of the circuit board and the faster the motor speed, the more power is consumed and the shorter the discharge time is.

For the 25 samples in this comparison test, when fully charged, the common mode marked on the product was turned on for a discharge test and the discharge time was calculated. The longer the discharge time, the longer the fully charged battery will work and the more durable it will be. Among them, 5 models have a discharge time of more than 8 hours, and 7 models have a discharge time between 3 and 8 hours. The longest discharge time measured was 21.7 hours, which was the lebooo electric toothbrush FC·Yueran LBE0611B; the shortest discharge time was 0.7 hours, which was the Panasonic electric toothbrush EW-DM71. The difference is huge. Comparison chart of charge and discharge time of

25 samples. Picture / China Consumers Association

Some noises are greater than 50 decibels. Just like a dental drill

Noise is an important aspect to measure the quality of electric toothbrushes. Excessive noise can make users irritable and is also the reason why some consumers cannot accept electric toothbrushes. The noise of electric toothbrushes is mainly caused by the high-speed vibration of the internal motor. The

test tested the maximum operating noise of 25 electric toothbrush samples, and the test results showed great differences. Among them, 4 products have a noise greater than 50 decibels, coupled with high-frequency vibration, making users feel that the noise is loud, like the sound of a dental drill; 14 products have a noise less than 40 decibels, which is equivalent to the sound of a whispered conversation, and users are more willing to accept. The difference between the maximum noise and the minimum noise of the sample is about 25 decibels, which is a relatively large difference.

Among them, the noisiest electric toothbrushes (rated ★★★) include Oral-B BRAUN electric toothbrush 3765, Oral-B BRAUN electric toothbrush 3766, Saky Pro sonic electric toothbrush G22, ubaLun/Ubalun sonic electric toothbrush UBL- 01.

also found in other project tests that the bristles of all samples were of good quality, the hair bundles were not easily deformed during use, and the brush heads had good firmness. The switching service life of the samples reaches more than 5,000 switching times.

evaluation summary list. Picture / China Consumers Association

Purchasing Tips

By comparing the test results, it can be seen that electric toothbrushes have great differences in cleaning effect, noise, charging and discharging time, etc. Consumers should pay attention to the following points when purchasing electric toothbrushes:

1. Read the labels

When purchasing, try to purchase electric toothbrushes with complete label information through regular channels. Products with no product name information, no brand model, and no warning instructions should be Avoid buying.

2. Choose the type

Users should choose an appropriate electric toothbrush based on their age, dental condition, etc. Children should choose children's electric toothbrushes. If the user has sensitive teeth, a brush head with soft bristles can be used to reduce damage to teeth and gums. Try to choose a toothbrush that provides a variety of working mode gears. When first using it, it is not advisable to use a strong working mode. You should start using it with a soft gear to give your teeth a period of adaptation. The brush head you choose should not be too large, and the size of the user's mouth must be fully considered. If the brush head is too large, it will be difficult to move flexibly in the mouth and cannot fully clean different positions of the teeth.

3. Test the vibration feeling

When purchasing, pay attention to the vibration frequency of the electric toothbrush. Generally, the higher the vibration frequency, the better the cleaning effect. However, the noise and vibration in the hand will be stronger. At present, the nominal vibration of electric toothbrushes is mostly at the sonic level, with a frequency of 20,000 to 40,000 times per minute. When purchasing an electric toothbrush in a physical store, you can hold the electric toothbrush in your hand and turn it to the maximum setting to actually feel whether the operating noise and vibration are acceptable. For some patients suffering from gingivitis and periodontitis, try not to use working modes or products with too high vibration frequencies.

4. Function recognition

focuses on the functionality of electric toothbrushes, such as intelligent time reminder function, pressure sensing function, low battery reminder function, etc.

The length of brushing time is directly related to the cleaning effect of the teeth. Therefore, some electric toothbrush products have added a time reminder function, which generally prompts the user to change the brushing position every 30 seconds, while ensuring that the user spends a lot of time brushing each time. in 2 minutes.

Some users have difficulty controlling the pressure the toothbrush exerts on their teeth when using an electric toothbrush. Excessive pressure can cause the bristles to wear down your teeth and damage your gums. Therefore, some products have added pressure sensing functions. When it detects that the toothbrush exerts too much pressure on the teeth, it will automatically reduce the vibration frequency of the toothbrush to reduce damage to the teeth.

Some electric toothbrushes will display low battery reminders when the battery power is low, such as warning lights flashing and warning sounds, etc., to remind users to charge the electric toothbrush in time to avoid affecting use.

Pay attention to product battery capacity, charging time and other information when purchasing. Choose the appropriate product based on usage conditions and frequency of use. If it is difficult to place a charging device in the bathroom and the electric toothbrush needs to be charged in another location, or if the toothbrush is used more frequently, you can choose a product with a short charging time or a long discharging time.

Finally, no matter what type of electric toothbrush you choose, you should ensure that the appearance of the main body of the product and the included charger stand or other accessories have no obvious burrs, cracks, sharp edges, sharp angles and other defects. The bristles of the brush head should be neat, straight, and the hair bundles should be empty and appropriate.

Maintenance Tips

1. Before using an electric toothbrush, you need to carefully read the requirements for water temperature, environment, etc. in the instruction manual. It is best to replace the brush head every three months, because even if it is cleaned, bacteria on the bristles will increase after long-term use. If conditions permit, it is recommended to purchase two or three brush heads and use them in rotation. This can avoid excessive bacterial adhesion on one brush head and maintain the elasticity of the toothbrush bristles.

2. Be sure to wash the electric toothbrush thoroughly after each use. When cleaning, you can put it into clean water and turn on the working mode to run for a period of time. Then try to shake off the water on it as much as possible, place the toothbrush head upward in a mouthwash cup, and place it in a dry and ventilated environment. If an electric toothbrush has been used for a long time, the sealing ring may age and deform, causing water to enter the inside of the electric toothbrush and burn out the circuit. Therefore, be careful not to leave the electric toothbrush in a humid environment for a long time.

3. When using an electric toothbrush, do not use the same force as an ordinary manual toothbrush. Excessive force can easily cause the bristles to spread out or curl. If you find that the brush head has lost its elasticity, you should replace it in time, otherwise it will be harmful to your teeth and gums.

4. When you find that the electric toothbrush is not as powerful as before when brushing your teeth, it is likely that the battery is insufficient. To avoid affecting the cleaning performance, it is best to charge it in time. During the charging process, do not plug or unplug the toothbrush at will. It is best to charge it fully at once, otherwise the service life of the battery will be damaged.

Beijing News reporter Dai Xuan

editor Fan Yijing proofread by Wang Xin