When I got my wisdom teeth pulled 2 at a time, I got the laughing gas and sooo much freezing. Honestly, the gas made me so happy she could have pulled every tooth in my head and I would have been fine. I had another tooth pulled with only freezing and it was fine. I’ve had soooo much dental work and, in my experience, the dentist needs to use a lot of freezing and know where to inject it for maximum effect. But if you’re having tooth pain, get that handled! Tooth pain is the worst.

Eta- if the freezing was ineffective for some, it’s may have been because it was infected and infected tissue freezes differently. My hub’s dentist had him on a course of antibiotics before his root canal so the freezing would take.