(1) Size of the toothbrush head: According to the regulations of the American Dental Association, the length of the toothbrush head should be 2.5 to 3 cm, the width is 0.8 to 1 cm, there are 2 to 4 rows of bristles, 5 to 12 bundles of bristles per head, and the brush head The front end should be round and blunt. These rules can be used as a reference for people to choose a toothbrush.
(2) Hardness of bristles: Generally, it can be divided into soft, neutral and hard. It is more suitable to use a toothbrush with a neutral hardness. When you buy a toothbrush, you can press the bristles with your fingers. If the finger has a tingling sensation, it means it is too hard and should not be used. Currently, the bristles of commercially available toothbrushes are mostly nylon bristles. The elasticity, uniformity and hardness of nylon bristles are better than that of pig hairbrushes, which is more conducive to oral health care.
(3) Angle of brush head and handle: Commercially available toothbrushes are available in both linear and angular styles. Straight type is more powerful when used. Angled toothbrush has better cleaning effect on the back teeth. This angle is preferably 17 degrees to 20 degrees.
(4) Top of the bristles : The top of each bristles should be round and blunt, and should not have an acute angle. You can use your hands to touch and judge when purchasing.
(5) Special toothbrush: Patients with periodontal disease or older people have atrophy of the gums and increased interdental space. In addition to the general toothbrush, the interdental toothbrush should be used. The bristles of this toothbrush have tapered and long strips. Shape, etc., can be used. There is also a toothbrush with only two rows of bristles, which is used to massage the gums. The outer two rows of bristles are smaller than the middle two rows of bristled concave toothbrushes, which are specially used for the dentition correction. This toothbrush can not only clean the tooth surface, but also clean the food residue on the aligner. For those with inconvenient movements (such as stroke patients), electric toothbrushes, light energy iontophores, etc. can be used.
The correct way to use the toothbrush is:
(1) Wash the toothbrush thoroughly after each use, and remove the water as much as possible. Place the toothbrush head up in the cup, or place it in a place where there is sunlight, so that it is dry and sterilized.
(2) If conditions permit, you can purchase 2 or 3 toothbrushes at the same time to extend the drying time of the toothbrush. This is especially important for people with gingivitis and periodontitis. In addition, the rotation can also maintain the elasticity of the bristles.
(3) Old toothbrushes with bristles that have been loosened or curled and lose their elasticity must be replaced in time, otherwise they are not good for teeth and gums.
(4) For children living in groups, the toothbrush should be concentrated and thoroughly cleaned and disinfected once a week.
(5) toothbrushes cannot be used together to prevent mutual infection
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