I felt bolts of pain and immediate teeth sensitivity. Results Yes, but at what cost? The goal, remove yellow-teeth stains. Was I happy with the experience no? Would you be? If you like sadistic bolts of shock waves through your teeth. My Dentist warned me. It was my choice. After all, achieving a beautiful white smile takes effort and pain, Or does it? Not with the new solution I found. It gives you 8 Brilliant benefits for erasing teeth stains.