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The Average Number of Decayed, Missing (Because of Caries), or Filled

Question 22

Multiple Choice
The average number of decayed, missing (because of caries), or filled permanent teeth (DMFT) steadily declined from 1967 to 1992 in the United States because of:
A) improved oral hygiene.
B) populations residing in fluoridated water communities.
C) improvements in the design of toothbrushes.
D) the use of dental floss.

The average number of decayed, missing (because of caries) , or filled permanent teeth (DMFT) steadily declined from 1967 to 1992 in the United States because of:


A) improved oral hygiene.
B) populations residing in fluoridated water communities.
C) improvements in the design of toothbrushes.
D) the use of dental floss.

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