IX 



HYGIENE OF DIGESTION AND ABSORPTION 



109 



is simple. Knowing the cause of a disease, one may be 

 able to prevent it. The one important thing is to keep 

 the teeth free from food materials for the bacteria. 

 How can this be done ? There is but one way. The 

 teeth must be carefully and thoroughly cleansed after 

 each meal. 



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FlG. 57. Bacteria commonly found in the mouth. (Hopkins' "Care of the 

 Teeth." D. Appleton & Co.) 



We should early form the habit of properly caring 

 for the teeth daily. A good cleansing once a month 

 will not take the place of the daily care they should 

 receive. The particles of food between and around the 

 teeth should be removed with a wood or quill toothpick 

 after each meal. Food between teeth that are close 

 together may be easily removed with a fine silk thread 

 or with a small rubber band. A soft toothbrush and 



