I had a root canal on the same tooth, then one half fell off, then the other half, so it needed a crown, which cracked, so needed another crown, which came loose, was cemented back in, came loose again and I swallowed it (sounds a bit like a castle built on a swamp). Was told root was too cracked for another crown, so just had the lot out. Year later and I don't miss it, barely notice it, but do tend to chew more on the other side.