My dentist placed biodentine as temporary filling. days after, it hurts. it's like my tooth will fall. what will i do?do i need to undergo root canal?

Possibly: Your dentist will need to re-evaluate that tooth. May need root canal therapy.

Most likely: These signs may indicate that you have a diseased tooth or infected nerve and therefore may need a root canal. See your dentist ASAP.

Root Canal: Root canal treatment indicated. Please return to your Dentist or ask for referral to a specialist Endodontists. Sounds like you have an active infection that requires more extensive treatment.