Toothbrushing Series 4: Brush More, Shine Bright! The Yifu family is troubled by various dental issues, just like the nearby Jian Du family, who also consume a lot of sweets.
Hygiene habits Beijing Science and Technology Press Japan Introspective ability Scientific Enlightenment Chinese Peace Habit formation (obsolete) Behavioral habits 3 2 6 5 4 Hygiene habits Tooth brushing habits Health Washroom Habit formation Scientific inquiry Small class Middle class Kindergarten class World Oral Health Day Five stars