Because the results of dental tourism is very different to normal , routine dentistry.
Most dental tourists in Turkey will get variations of 28 crowns , implants, or all on 6 etc where every tooth is treated .
They have treatment plans done by email , or in hotels without proper clinical examination , x rays and history taking.
In many years of practice I have never either in one treatment or cumulatively placed 28 crowns on one patient. I have also never seen anyone treated in another country have 28 crowns placed in one treatment.
In young people this is often done to correct minor problems like misaligned teeth which could be corrected with braces cheaper and without permanent damage.
For those with damage doing a lot of treatment all in one go means the problems of diet, cleaning and care that should have been addressed and stabilised are not and all the work is doomed because their habits and care remain the same.
Finally in order to make it quick and economically viable treatment short cuts like joining crowns into one unit, root filling multiple teeth , making restorations uncleanable, changing the bite etc are commonplace.
You can spot Turkish dental tourism a mile away and because so many teeth are hacked about , it makes it a nightmare to sort out often needing specialist care because the problems created are so complex.
i , like all dentists, have seen and treated people from all around the world with dentistry ranging from Soviet era gold crowns to work done by Indian street dentists to beautiful Swedish work by one of the best dentists in the world. I have no problem with this as this is routine care of teeth , some good , some terrible , but a combination of treated and untouched teeth.
I have seen many patients who have been to Turkey and told them I will not touch their teeth as every tooth has been treated and it would open a hornets nest of problems and make me a target for litigation when the work they have spent thousands on starts to blow up and cause problems as U.K. dentists are far easier to sue. Repair is expensive , often takes years and often results in loss of more teeth.