Hello and thank you for your question.
This typically is not normal for a temporary filling. This may indicate that the bite is too high on the restoration and will need to be reduced to help remove the irritation.
Depending on the crack, what happens with this is when you bite down you open the crack which changes the pressure around the nerve
, when you let go, it closes and changes the pressure again, this leads to pain in the nerve. This may indicate that the crack has entered into the pulp requiring a root canal
or it causes enough irritation to the pulp that the dentist
needs to grind the tooth until the crack goes away.
I have worked on many patients with cracks in their teeth and the pain goes away once it's drilled out. Other times it goes right into the pulp and needs to have a root canal. In other cases the crack is so deep that the tooth is non-restorable and needed to be extracted. Hang in there.