My new bridge pontiff became detached from the back molar tooth. (photo)

Unfortunately, your bridge can not be repaired. Leaving the bridge in this condition would lead to additional problems in the future. I would suggest that you return to your dentist as soon as possible to discuss replacing the bridge.  I hope this helps.  Click "save" under my name, if you'd like to ask me more questions in the future.  

It looks like your bridge is all porcelain which can be more susceptible to fracture. Don't wait to address this. You don't want to chance hurting a different tooth. It cannot be repaired!

I agree with the previous reply.  Unfortunately once the bridge breaks, there is nothing that can be done in the mouth.  The entire bridge will need replacement.  I would talk to your dentist about this.  If it was done within the last year and you have been keeping up with your hygiene visits, you may be able to get it replaced at a minor cost.

Andrew Soulimiotis DMD, FAGD