I have not done dental tourism, but I have received medical treatment in Mexico. I got a really bad UTI while in Cancun, and I received some anti-biotics in the form of a shot and also pills, they gave me pain meds and pro-biotics, as well as a dosage for my partner in case the bacteria spread around 'down there.' Anyway the entire treatment (a doctor's visit, four scripts and a shot) were $200 USD (with no insurance). Now I have had UTIs before in the USA, and you might be able to get one prescription and a doctor's examination for $200 (if you have insurance, if not probably way more), but you would not get anything else. You have to pee in a cup, which costs money cause they do lab testing. Then you have to pay for the doctor's visit and so on, and also pay the prescription. In Mexico I got an anti-biotic shot because they wanted to make sure I didn't come back, I left with some prescriptions too, all for $200. A fair price indeed.
I can tell you that the doctor I had in Mexico went to med school in the USA. Many of them do. But overhead costs are lower in Mexico, doctors don't get paid exuberant wages, pharmacy isn't jacked up to cover the cost of development--so medical costs a hell of a lot less for basically the same quality.
My step dad went to Mexico to get cosmetic surgery on a scar, too.
I can't imagine dental would be too much different from medical, but I wanted to share this information with you. I would go to a touristy area like Cancun or Tijuana, a lot of the resorts hire doctors and they hire the best for their customers.
Stumbled into Primal due to food allergies, and subsequent elimination of non-primal foods.
Start Gluten-Free/Soy-Free: December 2012; start weight 158lbs, Ladies size 6
Start Primal: March 2013, start weight 150lbs, Ladies size 6
Current: 132lbs, Ladies size 2
26lbs lost since cutting the crap.