152 GOOD HEALTH 



4. Every night before you go to bed take 

 a piece of soft silk thread and draw it 

 between as many teeth as you can. This is 

 better than a toothpick. You will get a 

 speck of food almost every time you pull the 

 thread through. 



If you can wash your teeth after each meal, that will 

 be better yet ; but use the powder only once a day. 



If you have poor teeth, go to the dentist twice a year. 

 This will save you from pain and will make your teeth 

 last much longer. 



QUESTIONS 



1. What sort of people sometimes have unwashed teeth? 



2. What does sucking the thumb and fingers do to the jaw 

 sometimes ? 



3. What can a dentist do to crooked teeth? 



4. What is the outside of the tooth called? 



5. What two things must we do to the enamel? 



6. Why must we keep the enamel clean and unbroken? 



7. What harm do microbes do to the teeth when they are not 

 perfectly dry and perfectly clean ? 



8. What does that teach us? 



9. What do you need to use to clean teeth with? 

 10. How often should you wash them? 



