Many people ask, “Why do I still have tooth decay even though I brush my teeth every day?” Although you brush your teeth, the effect is not obvious. This is because you are not brushing your teeth effectively. It is important to take the daily brushing task seriously and not to do it routinely, but to adhere to the correct brushing method and brush all the teeth in order in order to avoid periodontal diseases. Correct brushing method and steps The purpose of brushing is to remove plaque, soft tartar, food residue and pigmentation, keep the mouth clean, massage the gums, and improve periodontal health. At present, we advocate more and the most effective brushing method: the Bartholomew brushing method! Lower row of outer teeth: place the bristles diagonally and press lightly at the junction of the teeth and gums, at an angle of 45 degrees to the tooth surface, gently chattering horizontally, with the lower row of teeth upwards, then brush upwards along the tooth gap. Brush the inner side of the lower row of teeth as above. Lower row of teeth occlusal surface: Hold the toothbrush flat and brush the teeth occlusal surface back and forth with moderate strength. The dynamic bristles of the health care toothbrush can play a unique role in different parts of the tooth, cleaning the tooth surface and interdental crevices deeply respectively; the flexible and slim brush head makes the hard-to-reach back molars cleaned. Upper row of outer teeth: Place the bristles diagonally and press lightly at the junction of the teeth and gums at an angle of 45 degrees to the tooth surface, and gently shake horizontally, with the upper row of teeth upwards, then brush downwards along the gaps. Same method as above for the inner side of the upper row of teeth. The upper row of teeth occlusal surface and the lower row of teeth occlusal surface brushing method is the same. Toothbrush selection Criteria for toothbrush selection: the bristles are moderately soft and hard, and should be able to enter the adjacent surface of the teeth and the gingival sulcus, to remove the adjacent surface and subgingival plaque without stinging the gums. Most of the bristles used today are made of high quality nylon, with a diameter of 0.18-0.28 mm, soft and flexible, and with a recovery rate of 40% or more of the bending of the bristles. The brush head should not be too large, neatly arranged, the number of rows should not be too many, there should be a certain distance between the bundle of hairs, the degree of sparse honey to be able to remove the collar surface and subgingival plaque and at the same time easy to clean as degree. The top of the bristles should be rounded or semi-elliptical to avoid manipulating the teeth and gums when brushing. The American Dental Association recommends: adult toothbrush head length of about 2.54-3.18 cm, width of about 0.79-0.95 cm; bristles 2-4 rows, each row of 5-12 bundles. The seven misconceptions of brushing teeth 1, cold water brushing toothpaste in the active ingredients such as fluoride, rubbing agent, etc. The best temperature to play a role is about 37 ℃, so it is best to use warm water to brush teeth. 2, excessive force Toothbrush should be changed once every 3 months, if the toothbrush is used for less than 3 months, there is serious wear, that means the brushing force is too large. 3, horizontal brushing Most of us use horizontal brushing method, horizontal brushing method will be easier to operate, but this will wear the teeth, can cause wedge-shaped defects, the correct brushing method is to brush vertically along the gaps of the teeth, the most effective is the Bachmann brushing method. 4, brushing time is too short The purpose of brushing is to remove the soft scale, food debris and plaque attached to the surface of the teeth and gum crevices, etc. Each brushing time should be about 3 minutes. 5.Brushing time is not right. Brushing teeth in the morning can only refresh your breath, in fact, it is best to brush teeth half a little after eating, especially after 30 minutes of dinner, which is very important to prevent tooth decay. 6.Rinsing too many times after brushing Brush your teeth and rinse your mouth once, but children may swallow toothpaste, so you should rinse your mouth several times more. 7.Big toothbrush can be clean. Choose toothbrush according to personal situation, the head of toothbrush is about 2-3 teeth width is most suitable.