Humira - just had 4 abcessed teeth pulled while on humera..anything I should know?

I am surprised that your dentist has not heard of Humira. As you are probably aware Humira is a biologic response modifier and can compromise the body's ability to fight infections. Are you taking antibiotics - you possibly should be.
You should contact your dentist again to confirm he/she is happy with your treatment considering your medication .(see the link below)
If you are not happy with his/her actions I would check with the doctor who prescribed Humira. I would be interested to hear how you get on. All the best.
https://www.drugs.com/humira.html