No matter how well your filling or crown was done, the materials that were used to fix the tooth can end up causing pain later on down the road. There really is nothing you can do, as crowns can sometimes come off or the filling can sometimes come out. If this happens, all you can really do is go back to the dentist to get the problem fixed. Once the infection has started to spread, your jawbone may start to dissolve as it makes room for the swelling in the area that has been infected. Once the bone starts to dissolve, the pressure will be greatly reduced, although the infection will still be there. Even though you will get relief, the infection will get worse - and the pain will always come back. The tissue in the pulp is kept alive by the blood vessels that come from the tip of the root and travel along the root canal into the tooth. Decay is the main reason for pulp in the tooth dying. Once the decay has reached the pulp, it will keep eating away until the pulp has died. Once it dies, the toxins from the decay will be released into the root tip and make it s way into the jawbone. This fear normally prevents rational people from visiting the dentist and maintaining the health of their teeth. The key to keeping your teeth healthy is to prevent problems before they start. Those who suffer from dental anxiety will try to avoid going to the dentist, which results in problems. When someone who suffers from dental anxiety finally goes to the dentist, they normally find that even the smallest of problems can turn serious and require a lot of work and intervention from the dentist. If you start using fluoride toothpaste such as Sensodyne and mouthwash, you ll notice a bit improvement in your teeth and gums. The sensitivity will begin going away, giving you almost immediate relief. When you brush, make sure you brush gently, and avoid using any type of force, as it will always cause your gums to recede again. As time passed, doctors proved that the best way to stop the pain was to clean and remove the nerve and pulp of the tooth. Root canals are a very common procedure these days, as they help to save the tooth by removing the dead or dying pulp. The pulp exists inside of the tooth, and can spread to abscess if it isn t taken care of.