口腔護理知識

1. for ie6 display problem can be ignore, but don't delete
• !mportant don't delete

1. 口臭
• 什麼是口臭？

1. 蛀牙 (齲齒)
• 什麼是蛀牙 (齲齒)？
• 如何有效防止蛀牙？

1. for ie6 display problem can be ignore, but don't delete
• !mportant don't delete

1. 刷牙和用牙線剔牙
• 怎樣刷牙
• 正確選擇牙刷
• 怎樣正確使用牙線
• 牙刷的護理與更換