My wisdom tooth doctor killed my nerve, so he put a piece of cotton in my tooth and killed it?

Deactivators are used to kill nerves. Deactivators themselves are not easy to form, so they are wrapped in cotton and easy to put in and take out.

The main component of the inactivator is arsenious acid, which can embolize the pulp (nerve) blood vessels and make the pulp ischemic and necrotic. Its curative effect is stable and generally does not recur.

Cotton and inactivator are sealed in the teeth, which will not rot after 2 weeks, and the efficacy is just right.

It doesn't hurt when the tooth is extracted, but the anesthetic will anesthetize the pain nerve.