The crown of the first right molar is entirely destroyed. 

 Exposure, devitalization and suppuration of the pulp neces- 

 sarily followed. 



The necrosed roots still remaining in their sockets, and 

 visible through openings (resulting from absorption) in the 

 plates of the process, tell the story of alveolar abscess, and 

 supply the climax in the destruction of this organ. 



The conditions presented by the teeth under consideration 

 arc undoubtedly due to the same causes that are impairing 

 the usefulness and durability of the teeth of the most advanced 

 races of today. Briefly stated, these causes are a lack of thor- 

 ough mastication of food, and the baneful influence of trans- 

 mission of physical deterioration by heredity. 



As I have previously stated, the Pueblo and Cliff dwellers 

 possessed a varied and abundant food supply. 



The number of clay cooking-pots, cracked, warped and 

 blackened by smoke, which have been taken from their houses 

 and cemeteries, and the rarity of baking-stones, makes it clear 

 that it was their custom to boil rather than to roast or bake 

 their food. 



It may. 1 believe, be safely assumed that thel greater part 

 of their diet consisted of corn, squash, beans and possibly other 

 vegetables that (while green) were cooked by being boiled. 



The corn after maturing was ground into meal, when, as 

 evidenced by remains in some of the cooking-pots, it was made 

 into mush or porridge. 



Stews consisting of meat and vegetables were, no doubt. 

 prepared in the same manner. 



it is clear that food prepared as is here indicated would 

 probably receive but little mastication. Deterioration of the 

 teeth would necessarily ensue. 



In support of this conclusion. I quote from a work entitled, 

 '"The Cause and Prevention of Decay in Teeth," by Dr. J. 

 Sim Wallace, a distinguished dental surgeon of England, and 

 will add that, as a result of my own observations during 

 thirty-six years devoted to the practice of dentistry, I unquali- 

 fiedly endorse the statements of Dr. Wallace. Furthermore, I 

 believe that similar views are held by a majority of advanced 

 members of the dental profession. Dr. Wallace writes: 



"In the early periods of man's existence there was little 

 social cohesion, and each individual had, to a great extent, to 

 concern himself with securing food. and. when he had the 

 opportunity or inclination, with cooking it. 



"When avc compare such a state of affairs with the various 

 methods of securing food at the present day. and the elaborate 

 machinery (Hour mills, rice mills, sausage mills, sugar refiner- 

 ies, meat juice factories, etc..) by which many of the foods are 

 refined, not to speak of the processes to which foods are sub- 



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