Again, if all is well and if all was done correctly with
your <span style = 'background-color: #dae8f4'>crown</span>
, you should not need this. I also suspect that if you are having sensitivity it may be due to
poor margins (the edges of the crown
may not extend far enough and may not be well adapted to
oth) At this point, I'd get another opinion about why you are having this problem, and about the quality/integrity of the work that was done.