The prices for dental treatments or hair transplant can be really high, even with a state sponsored medical insurance.
An implant (implant + abutment + crown) averages 2500£ in the UK. In Turkey, the prices vary between 550 and 950€.
An all-on-4 prosthetis will cost you around 20000£ in the UK, you can save up to 50% in Turkey.
Hair transplantation in Paris will cost you 5000€ (depending on the surgeon). Istanbul is much cheaper than anywhere else. That is why Turkey is the world leader in hair transplantation.
Keep in mind that the prices will depend on the procedure chosen, and on the medical requirements decided by the team of doctors.