I've always heard inhaling nitrous oxide from whipped cream canisters kills brain cells, but isn't nitrous oxide used in dentistry?

Yes, but safely. Nitrous oxide is not the problem. It is the lack of oxygen that causes brain damage. When used in dentistry we never use 100% nitrous oxide, it is always mixed with oxygen. Where people get into trouble is breathing unregulated nitrous oxide on their own and depriving their brain of oxygen. They are suffocating themselves without realizing it.
Yes it is. Nitrous oxide is used in lower concentrations and under the direct supervision of a qualified and licensed dentist to make sure that you are safe at all times while using the nitrous oxide. If you are concerned, ask your dentist what is being done to keep you safe and comfortable.
It is safe . When nitrous oxide is administered by a dentist or physician for pain relief or anesthesia, specialized equipment and techniques are used make it safe. The main risk is breathing in too high a concentration thereby not breathing in enough oxygen. Our equipment ensures that oxygen or air is mixed with nitrous oxide. If you breathe nitrous oxide from canisters, you may inhale no oxygen at all.
Nitrous oxide. When used in a dental office, Nitrous oxide is used in combination with oxygen. The devices that control the flow of gases will not allow less than 30 % oxygen. The amount of oxygen in the air around us is 21%. Therefore, it is safe to use . Straight nitrous oxide can cause death.
Yes, As with any approved anesthetic drug, when used appropriately nitrous oxide is safe and effective. However, if over used it can cause multiple problems like birth defects, spontaneous abortions, liver disease, kidney disease and changes in the blood that can be fatal. That is why nitrous oxide should only be administered by a licensed healthcare professional.
Professional . Nitrous oxide is safe in the hands of trained licensed professional. If it is used for recreational purposes side affects and dangerous outcomes are possible. Discuss your concerns with physician providing anesthesia.