Keep your teeth clean by brushing and flossing at least twice a day .
每天至少刷牙和用牙线洁牙两次来保持牙齿清洁。
Your smile depends on simple dental care habits , such as brushing and flossing .
自信的笑容取决于简单的牙齿护理习惯，如刷牙和使用牙线。
Just like bathing and tooth brushing , these positive habits are foundational life skills .
就像洗澡和刷牙一样，这些好习惯都是最基本的生活技能。
Volunteers wore human dentin samples in their mouths , and tested different brushing regimens .
在志愿者口中放置人牙质样本，研究人员测试了不同的刷牙方案。
Liver better greengoose uses wireless sensors and simple game mechanics to encourage behaviors like brushing your teeth riding your bike and walking your dog .
