Effective brushing: choose a soft-bristled health care toothbrush; place the toothbrush bristles at the junction of teeth and gums, point the bristles in the direction of the root at an angle of 45o to the tooth surface, quiver horizontally in situ, and then brush vertically along the teeth. You can also take the method of drawing circles on the tooth surface; brush all parts of the teeth in a certain order; brush your teeth in the morning and evening; brush for 3 minutes each time. Some people brush their teeth like pulling a saw, that is, brush horizontally. This method of brushing is harmful and will “saw” a deep groove at the root of the tooth over time, which is called “wedge-shaped defect” in medical terminology. People with this wedge-shaped defect, the lighter to eat cold, hot, sour, sweet food will cause tooth pain, the more serious will cause pulpitis, making your tooth pain to sit up and rest. Adhering to the correct method of brushing can brush away plaque and also massage the gums. Healthy people generally brush their teeth 1 to 2 times a day, but people with gum or periodontal disease should emphasize brushing their teeth in the morning and evening, and also add one after lunch, brushing for 3 minutes each time. The correct method of brushing teeth is the short horizontal brushing method and vertical rotation method. Short horizontal brushing method (also known as horizontal quiver method): People are used to the horizontal brushing method is a long pulling action, this horizontal brushing method if coupled with a stiff bristled toothbrush will bring damage to the periodontium (bristle damage to the gum margin, gum recession, wedge-shaped defects in the root and neck, etc.). The short horizontal brushing method is also known as the in-sulcus brushing method because it cleans plaque best with a short quivering horizontal brushing motion. Set the tip of the bristles and teeth gingival surface at an angle of 45 ° and light pressure, the tip of the bristles partly into the gingival sulcus, and partly outside the sulcus, and then for the back and forth to tremble 6 ~ 8 times, trembling when the bristles move only 1 mm. brush the lingual and palatal surfaces of the upper and lower front teeth, such as the arch is narrow, the head of the toothbrush can be erected for short horizontal brush trembling. At the same time, it should also be pulled and brushed the occlusal surface of the posterior teeth to clean the sulcus point gap of the dentition. Vertical rotation method: It can effectively remove plaque and soft scale, and can stimulate gingival keratinization and maintain the normal shape of gums. The available toothbrush surface is wide, hard and medium hard bristles can be used, but the elderly, children or periodontal disease after surgery should use medium hard or soft bristles toothbrush. The action of brushing the lip and cheek surface and the lingual and palatal surface of the back teeth is to put the bristles parallel to the long axis of the teeth, stick to the tooth surface, point the bristles to the gingival edge, twist the toothbrush with pressure so that the bristles are at an angle of 45° to the long axis, turn the toothbrush, that is, brush the upper teeth when the bristles are brushed downward along the tooth gap, brush the lower teeth from the bottom to brush. Note that the action is slightly slower, with a little tremor, and the same part should be repeated 5 to 6 times. Brush the lingual and palatal surfaces of the front teeth with the same rotating action as above. For those with narrow dental arches, brush the toothbrush vertically, press part of the bristle bundle on the gums, and pull the brush along the gap to the crown side, while pulling and brushing the occlusal surface of the back teeth. Toothpaste can enhance the effect of cleaning teeth because it contains abrasive and cleaning agents, which can prevent caries, anti-inflammatory, stop bleeding, prevent acidity, stop pain, inhibit tartar and reduce bad breath when brushing teeth.