I'm 22 and this is the second time I went to a brand new dentist due to my dads insurance changing. At 1 this very afternoon, I went in for fillings and did the whitening right after. The technicians took special care to make sure every single inch of my gums was covered so as not to be exposed, and put extra protective gel. I felt no pain during the 4 sessions and i actually fell asleep in the chair, disappointed that the machine woke me up after every 15 minute session . There was no pain after the whitening either and my teeth were at least 5 shades whiter. I am so happy and willing to smile at everybody now. The cavity fillings 30 minutes previous were much more painful than the whitening. And although this was a gift from my dad, the price and time is worth it. But although I felt no pain today, it's different for everyone.