A lot of people do it for dental care and plastic surgeries already. It’s exactly the same with everything else. People here doesn’t seem to realize you have private healthcare in Europe where you can just pay for the visit. The problem is that you also have to pay for the stay. I will give you two examples. Wisdom tooth extraction costs around 300 euros in Spain vs $500 in US. Doesn’t make sense to fly to Spain to do it. Tooth implant costs around 1000 euros in Spain vs $3500 in US. Now paying for a single flight would make sense but tooth implant requires multiple visits spanning around 3 months. If you have to fly twice or stay in Spain for 3 months it doesn’t make sense.

But if you’re already going to Europe and want to fix your tooth while you’re here you can totally do it. A lot of people that live in US but have family in Europe do it.