Every day I hear patients say, “I brush my teeth three times a day, but I still have problems with my teeth! Every time I reply, “There is a big difference between brushing your teeth every day and brushing them clean every day”. It is true that brushing clean teeth is not something you are born with, it is something you need to learn, so today I will talk to you about brushing those things. First of all, why brush your teeth: one is to prevent tooth decay (worm teeth), teeth do not hurt; two is to prevent periodontal disease (loose teeth), such as old age and do not lose teeth; other can keep teeth clean, fresh breath, individual can be supplemented with desensitizing toothpaste to relieve tooth sensitivity, and these are it. Secondly, how to choose a toothbrush: supermarket to buy it, the bristles are softer, the brush head is shorter, the hand can hold the line; usually brush the bristles flush on the placement, to facilitate drying, so as not to breed bacteria, about three months for a new one. The choice of electric toothbrush, recommended to choose the micro-vibration electric toothbrush (the most expensive brands you see that principle), not recommended to rotate the brush head, personally recommended Philips sonicare series, the principle of their own look at the ads. The advantage of electric toothbrushes over ordinary toothbrushes is that the bristles vibrate at a higher frequency, a location can be brushed clean instantly. With an electric toothbrush when brushing teeth, toothbrush placement and the use of ordinary toothbrush the same, after all, the frequency is high also need to be placed on the teeth in the right place. Three to say how to choose toothpaste: toothpaste is friction, basically just choose fluoride toothpaste can be, taste and other additional features to see their respective preferences; if there is dentin sensitivity to choose desensitizing toothpaste, it is good. To prevent tooth decay (worm teeth), we must choose toothpaste containing fluoride, as long as it has a certain preventive effect on tooth decay, in addition, it is the most important brushing method. The final highlight is to talk about the brushing method (electric toothbrush is placed at the right angle and position, it will brush by itself): Now the recommended method is the Bachmann brushing method, the point is that the teeth – gums meet the horizontal trembling, brush loose debris, and then remove. When brushing laterally, the bristles at an angle of 45° against the tooth-gum junction (the most important position for brushing), about 1 cm amplitude back and forth trembling 3-4 times, then brush 2 times, and then the toothbrush to the adjacent teeth to move a tooth, repeat the trembling, brush strength to brush teeth do not hurt as good. Figure 1: Brush the outer side of the upper posterior teeth – brush the bristles at an angle of 45° to the teeth, shake the brush 3-4 times about 1 cm back and forth, brush twice, then move one tooth forward and repeat the shaking and brushing. Figure 2: Brush the outer side of the upper front teeth – brush the bristles at a 45° angle to the teeth, shake 3-4 times around 1 cm back and forth, and brush twice. Figure 3: Brushing the outer side of the upper front teeth – brush the bristles at a 45° angle to the teeth, shake 3-4 times around 1 cm back and forth, and brush twice. Figure 4: Brush the outer side of the upper front teeth – brush the bristles at an angle of 45° to the teeth, shake the brush 3-4 times around 1 cm back and forth, and brush twice. Figure 5: Brush the inner side of the lower posterior teeth – brush the bristles at a 45° angle to the teeth, shake the brush 3-4 times around 1 cm back and forth, brush twice, then move one tooth forward and repeat the shaking and brushing. Figure 6: Flicking brush: the bristles brush out the chattered loose impurities. Figure 7: Brush the inner side of the upper and lower front teeth – brush at an angle of 90° to the teeth, starting from the gums and brushing 3-4 times one at a time from the inside out (you can also chatter left and right first and then brush this way). Figure 8: Occlusal surface: brush the bristles vertically back and forth 3-4 times. To ensure that each tooth is brushed on every surface, it is recommended to brush in a certain order, e.g.: outer upper teeth – inner upper teeth – outer lower teeth – inner lower teeth –the occlusal surfaces.