People like me keep dentists living a comfortable lifestyle.

#29 has a cavity(under a filling) that is too close to the nerve for
filling.  I have been told this by 3 dentists (a DMD, Endo and Surgeon). #30
has an old RC (15 years) that has a slight infection at the botom). My
tooth throbs late in the afternoon from one of these.
Ibuprofen does the job.  It usually starts after I eat.
Tooth #29 has nothing above since I am awaiting an implant.  I have shown
the x-ray(29-31) to 4 dentists and have gotten a split decision as to what
tooth is the villian.
(although it is agreed that a RC is needed eventually on both).
When they bang on 29 it does hurt.. #30 does not hurt when they bang.  But I
personally tend to think it is the #30 (Old RC) from the sensation of the
location when it does begin to throb.
I understand the concept of referred pain and really want to get the RC done
on the correct tooth. The reason I think it is not #29 is that there is no
pressure on the tooth when I eat.
Any thoughts would be appreciated.  How do I find out what is the tooth
causing the throbbing.  Pain level is about 5-6..bearable but you don't want
to live with it.

Regards, Ken

Any thoughts.