Some dirt on your teeth can't be removed by brushing your teeth alone, or it can't be brushed under your gums, so you should wash your teeth. Tooth washing can prevent and treat periodontal disease. The disadvantage is that it hurts just after washing, and it will be fine in a day or two. If you don't feel enough, you can whiten your teeth. Recently, Shengbei held a tooth whitening activity, so you can go and learn about it.

Chengdu Shengbei experts will answer your questions.