I'm very interested in brushing my teeth. Because my teeth are very weak. A few weeks ago, I found some videos that teaches me how to brush my teeth properly. Brushing your teeth properly is very simple. All you need is three things. Soft toothbrush, the right size of interdental toothbrushes, and tongue cleaner. First, using a soft toothbrush, you have to brush your teeth one by one. You have t..