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. Ted Robbins/NPR hide caption

itoggle caption Ted Robbins/NPR

Health care reform should make it easier for many children to get routine dental checkups that are covered by insurance. Terry J Alcorn/ hide caption

itoggle caption Terry J Alcorn/

Marcia Esters hopes charity will pay for dental work that Medicaid used to cover. Erika Beras hide caption

itoggle caption Erika Beras