In case of underfilling the tooth
, bacteria can grow, and
the resulting inflammation or abscess
can put pressure on the nerve which can further cause pain, numbness
, or tingling. Any improper placement of posts or filing instruments can penetrate the root side can cause nerve-compressing infections and
abscesses. If it is overfilled, you will need decompression surgery to take out the extra material and
relieve pressure on the sensory nerve.