Dental health knowledge big science

The correct way to brush your teeth

Make a 45-degree angle between the bristle bundle and the tooth surface, turn the brush head, brush the upper teeth from top to bottom, brush the lower teeth from bottom to top, and brush the upper and lower dentition back and forth.

1) The order of brushing teeth is to brush the outside first, then the occlusal surface, and finally the inside.

2) First left and then right, first up and then down, first outside and then inside, clean the inside and outside according to the order.

3) Each part should be brushed repeatedly 8 to 10 times, and it takes 3 minutes to clean the whole mouth.

Choice of toothbrush

People with red and swollen gums, easy to bleed, and people with tooth roots should try to choose a soft-bristled toothbrush;

People with shrinking gingival papilla or enlarged interdental spaces, and those who are difficult to clear behind the last tooth can choose a special-shaped toothbrush. The hair bundles on the head of the toothbrush can be longer and the head of the toothbrush can be slightly narrower. This makes it easy to remove food that has accumulated between the teeth.

Those who wear fixed dentures due to missing teeth generally use V-shaped or U-shaped special-shaped toothbrushes. The bristles of this toothbrush span the both sides of the base and the steel wire. The V-shaped or U-shaped bottom bristles are short and hard, which can effectively remove plaque on the base and the steel wire. The bristles on both sides are longer and softer for cleaning teeth and massaging gums.

Children should choose 2-3 rows, 3-4 bundles of hair in each row, and a flat-top toothbrush is better. The brush head should be short and narrow, the gap between each bundle of hairs should be relatively large, the softness and hardness of the bristles should be moderate, and the bristles should be sanded. Children should use a children's toothbrush with softer bristles.

The toothbrush handle used by the elderly should be long and straight, and the middle part of the handle should be slightly curved upward. And has a certain degree of flexibility, easy to grasp and use. The toothbrush head should be short and narrow, and it can rotate flexibly in the mouth. A brushed toothbrush with slightly soft bristles is best to choose a pig bristle toothbrush. There should be 2-3 rows of toothbrush hairs, 6-8 bundles in the boat row, and there should be an appropriate distance between the hair bundles to keep the toothbrush clean.