148 GOOD HEALTH 



I know of a boy with a mouth full of good-looking 

 teeth. The second picture shows how straight and even 

 they are now ; but when he was eight years old some of 

 his teeth were as crooked as the cobblestones on an old 

 down-town city street. The first picture shows how they 

 looked at that time. 



This troubled his father so much that he took him 

 to a dentist who was a clever man, and he managed to 

 make them grow in the right way. 

 The boy can now chew his food 

 better than he did before, because 

 the upper teeth and the lower teeth 

 are opposite each other and work 

 together. 



Go to the mirror. Look at your 

 own teeth and answer these three 

 questions about them. Are they 



THE WAY THE TEETH dean ? Are they crooked ? Do they 

 GREW 



look as if you had ever sucked 



your thumb or your fingers? 



If they are crooked the dentist can help you, and you 

 ought to go to him before the jawbone gets harder. It is 

 easier and quicker work to straighten young teeth than 

 old teeth. 



If your teeth are not clean, you must wash them ; and 

 if you know of any child that sucks his thumb, you must 

 help him to stop it. 



