Mimi Morales recovers in Children's Hospital of Orange Country in late September after surgery for a dental infection she contracted at Children's Dental Group in Anaheim, Calif. She had three permanent teeth, one baby tooth and part of her jawbone removed.
Mindy Schauer/Courtesy of The Orange County Register
Most studies of flossing have been too short to prove the daily practice has long-term health benefits, some dentists say. But conclusive studies aren't cheap or easy.
Klaus Vedfelt/Getty Images
A box of 3-D models 24-year-old student Amos Dudley made of his teeth. The model labeled "3" rests on a 3-D-printed tray Dudley made to make impressions of his teeth with a putty-like material. Also in the box are a clear plastic aligner and other 3-D models used to make more aligners, each one pushing the problematic teeth further into place.
Jon Kalish for NPR
Mexico's 2010 census counted fewer than 5,500 residents in Los Algodones, but more than 350 dentists ply their trade here, serving U.S. and Canadian patients seeking affordable procedures.