all dental programs here accept diploma evaluation done by ECE. some also accept evaluations from WES. some people say that WES usually gives higher scores. other are not satisfied at all with WES. if you have any idea in which university you will apply, check its web site. if not , probably it would be good idea to do it by ECE, since it is accepted everywhere. and if you are not satisfied with your results, you can alwas try later with WES...