| Message: | Toothbrush is the main tool for people to maintain oral hygiene. There are many types and brands of toothbrushes on the market, what kind of toothbrush is more appropriate? This should be considered from the following aspects:
1. The size of the toothbrush head: According to the regulations of the American Dental Association, the length of the toothbrush head should be 2.5~3 cm, the width is 0.8~1 cm, there are 2~4 rows of bristles, 5~12 bundles of bristles in each row, the front of the toothbrush head Should be round and blunt. These rules can be used for reference when people choose toothbrushes.
2. The hardness of the bristles: generally can be divided into three kinds of soft, neutral and hard, usually use a toothbrush of neutral hardness is more suitable. When you buy a toothbrush, you can use your finger to press the bristles. If the finger has a tingling sensation, it means that it is too hard and should not be used. The bristles of commercially available toothbrushes are mostly nylon bristles. The elasticity, uniformity and hardness of nylon bristles are better than pig hair toothbrushes, which is more conducive to oral health care.
3. The angle of the brush head and the handle: There are two types of toothbrushes in the market: linear and angle. The straight type is more powerful when used. The angled toothbrush has a better cleaning effect on the posterior teeth. This angle is preferably 17 degrees to 20 degrees. url:http://www.samemater.com |
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