The way the last couple of weeks have been going, it's a safe bet that you can guess how Friday went. If you guessed 'more dental work', then you hit the nail squarely on the head. It has been two weeks (now a bit more than that) since my root canal, and I had gone back to Family Dentistry to get the molar in question cleaned out, built up, and have a temporary crown installed. Ordinarily, this isn't such a big deal because once the nerve's gone (i.e., post-root canal) you can pretty much dig around inside the tooth …