Anaesthesia like novocaine help numbs pain during oral surgery or teeth extraction procedures. However, different people react differently to the anaesthesia. So, how long will your numbness last?

Main takeaways:

- If you have a tooth infection, you'll be less sensitive to novocaine.
- The dose administered depends on the size of the site, duration of the procedure and the number of nerves being numbed.
- The dentist can make numbness last longer by combining using epinephrine.
People with serious medical conditions like heart disease and hypertension shouldn't use epinephrine.

Read more here:
https://www.medicalnewstoday.com/articles/321880.php