Despite widespread water fluoridation and advances in dental care, cavities were more common among children in the early 2000s than they were a decade earlier, according to the U.S. Centers for Disease Control and Prevention.

"Cavities are alive and well in the United States," says William Berlocher, a pediatric dentist in Corpus Christi, Texas, and president of the American Academy of Pediatric Dentistry. One-third of children already have cavities by ages 3 to 5, he says.

http://www.usatoday.com/news/health/painter/2010-03-01-yourhealth01_ST_N.htm