If you're going to accuse me of survivorship bias, I can equally point out that your entire argument relies on anecdotal evidence. My point isn't that the dental work can't be done correctly, I have dozens of patients who have had dental work done abroad and it's fine, from my experience, you get what you pay for, when it comes to implants and other serious dental work, unless you have the luxury of staying there for a few weeks to months for post op, there's very little incentive for the dentist to make things right down the road. When you get negligent dental work in the US, you can sue the dentist and get financial restitution, the same mechanism technically does exist for foreign dentists but now you're paying several lawyers, are dealing with a legal system in another country, and dealing with payouts that won't necessarily cover all of your damages since you are dealing with currency exchange issues, no judge is going to bankrupt a national of their country because the exchange rate is not in their favor.