Painful dental onlay

I have a 2 month old onlay. It's the first such dental work I've had, but I believe it to be a rather large only.  It is extremely temperature and pressure sensitive to the extent I can barely chew on that side.  Is such sensitivity uncommon?  I'm confident it is the correct height, but am concerned there may be the chance it may have some other problem.

[Jerome Bogin, D.D.S.]

It is not correct that you can not chew on the onlay. Something is not right and needs to be treated.If the restoration was bonded on then it is possible that maybe the culprit. The other two possibilities are a fractured tooth or the need for root canal therapy.

[mcreech]

Thanks for the reply!  The original problem with my tooth was a crack.  My dentist drilled out the tooth and applied the onlay.  Also, it is indeed bonded.  I will setup an appointment.  Thanks so much for the input!

[mcreech]

Quick follow up question - What type of bonding problem could lead to pain?  I'd like to understand a little better before I discuss with my dentist.  Thanks!

[mike1105]

the chemicals used to bond the restoration to the tooth can cause pain.