Do you know how to brush your teeth? Teach you the most effective way to brush your teeth – the Bartholomew brushing method! ① Choose a soft-bristled toothbrush and point it at an angle of 45° to the long axis of the tooth in the direction of the root tip; ② Press the gum-dental junction area so that part of the bristles enter the gingival sulcus and part of them are laid on the gingival margin, and reach into the adjacent space as far as possible; ③ Use gentle pressure to make the bristles tremble horizontally 10 times for a short distance back and forth; ④ Move the toothbrush only about 1mm when trembling, and brush 2 to 3 teeth each time.