I've had a broken tooth from a filling that has caused an abscess a couple of times (swollen jaw and gum too) using clay and Apple Cider Vinegar I've stoppped the infection both times and the tooth is slowly growing back. Fat soluble vitamins, clay and acidic foods are great for health in general and dental health. Blow off the fear mongering comments above...there are natural remedies that work even for painful infections.
Montmorillite form of Bentonite clay. I had an absessed tooth that broke off. The absess was not really painful but my dentist advised a root canal because the tooth was dead. How I wish I would have tried the clay first and just had a temp crown put on. I continued to have a soreness at the root. The pocket of infection had been there for years. I didn't want to do the antibiotic thing or have more work done, so I tried the clay. I simply tucked a pea sized bit of clay with a bit of cotton up at the root where the pain was. The next morning it was somewhat better. I continued for months until every bit of the soreness was gone. It took time but I just know I probably could have healed it without the root canal. I still do it once in awhile because I know dead teeth in your mouth infect the body eventually, per Dr. Weston Price. The one advantage?...It takes almost no effort to do.