If you are looking for a great dentist who speaks English in Grecia, consider Dr. Rebeca Perez. She offers every kind of dental service including braces because she has a team of specialists that she can use for assistance if needed. She also works with people visiting from other countries to get dental work done at a lower price than in the US or Canada, etc. Located close to the local bus station in Grecia. Office cell is 2494-5889. I would highly recommend her.