英语短笑话:No Cavities 我绝对没有蛀牙

No Cavities
　　A smiling boy arrived home from a dental visit,Hey mom,the dentist says I have no cavities.
　　His mom stared at him wide-eyed and quite surprised,It’s impossible --you never brush your teeth after cleaning the chocolate box before you go to bed!
　　Then the boy opened his mouth --he had not a tooth left!