In addition to cleaning, other methods to eliminate tartar do you know? Health and wellness told you to learn these 7 methods to kill tartar in seconds! 1. Strawberry + baking powder Ingredients: one strawberry, 1/2 teaspoon of baking powder. Grind the strawberry into a paste, mix it thoroughly with the baking powder, apply the mixture evenly on the surface of your teeth with a toothbrush, and brush the mixture off and rinse your mouth after 5 minutes. The malic acid contained in strawberries can be used as a retentive agent. Remove stains from the surface of teeth. When mixed with baking powder, it becomes a natural tooth cleaner that can remove stains left by coffee, red wine and cola on the surface of teeth. 2.Orange peel Dry orange peel, grind it, and mix it with toothpaste to brush your teeth. 3.Vinegar Put home vinegar (aged vinegar, white vinegar) in your mouth for 1 minute to 3 minutes, then spit it out and brush your teeth. But the teeth will feel very sour and numb (the feeling will last about 2 minutes), about once in 2 months. There are emergency relief methods (such as before going out on a date, found teeth so yellow), but also can remove bad breath. 4, lemon juice After brushing your teeth, dip in lemon juice and rub each tooth. 5, yeast powder When brushing your teeth, use some yeast powder on your toothbrush. 6, raw peanuts Raw peanuts chewed, do not swallow, take peanut crumbs as toothpaste and brush your teeth. 7, squid bones There is a large bone in the body of squid, which is white and can be crushed and put on the toothbrush as toothpaste. Attach the correct method of brushing teeth 1. Brush the outer surface of the teeth first Put the bristles of the toothbrush at 45 degrees to the surface of the teeth, put it diagonally and press it lightly at the junction of the teeth and gums, gently make a small arc back and forth, brush the upper row of teeth downward and the lower row of teeth upward. 2. Brush the occlusal side of the teeth Hold the toothbrush flat and brush the occlusal side of the teeth back and forth with moderate strength to clean the tooth surface and the interdental space respectively. 3. Brush the inner side of the teeth Hold the toothbrush upright and use the dynamic bristles on the front of the toothbrush to gently clean the inner surface of the teeth up and down. 4. Gently brush the surface of the tongue Gently remove food debris and bacteria from the inside out.