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Teeth cleaning is something people have to do every day. However, do we really do the cleaning process thoroughly? People tend to use the way they are familiar with to brush their teeth. But we do not know if we manage to brush every tooth well.
Normally, we grip the bar of the toothbrush to brush our teeth. Because of this, we have a difficult time to feel the exact point where the brush touches the tooth. We can change our old way of brushing by using our fingers instead of holding onto the bar of the toothbrush .
yi-Hua Wang Chieh-An Hung