Hi Mark. I have been doing some research about PST as a way of correcting receding gums. My dentist who carries out all kinds of cosmetic surgery, veneers, cerec, implants etc claims to have never heard of it, yet I can see that there are some cosmetic dentists who have been trained performing the procedure in this country. I don’t know whether he just doesn’t want me to go elsewhere for treatment or has genuinely never heard of this technique. It is easy to find it. What is your opinion of it and is it approved by the dental bodies/associations in this country? Thank you.