"In college, we had to read about people shown pictures of gum disease. These were photographs of rotten gums and crooked, stained teeth, and the idea was to see how these images would affect the way people cared for their own teeth. One group was shown mouths only a little rotten. The second group was shown moderately rotten gums. The third group
(
Read more... )
Comments 1
( ... )
Reply
Leave a comment