Fillings work by closing out the area where the bacteria enters into teeth, helping to prevent any type of decay in the future. The materials used for fillings include porcelain, gold, composite resin, and amalgam. There is really no best type of filling, as several factors come into play. Your reaction to different material, the shape of the tooth, extent of repair, and where the filling is needed will be determining factors as to what material is used with your filling. If this happens, all you can really do is go back to the dentist to get the problem fixed. If you have an exposed root or nerve, it can also be the cause of your toothache. This normally happens due to rough brushing, receding the gums and exposing the root. If the root is exposed, the air or liquid you drink can trigger a toothache. If you have a tremendous fear of dental pain and simply cannot stand the thought of getting a shot, then you may be interested in laughing gas or IV sedation. Either of the two can help you relax before you the dentist applies numbing shots. IV sedation can either be conscious or put you out totally. If you have gingivitis and you don t do something about it, it could lead to periodontal disease. Those who don t treat gingivitis or those who keep poor oral hygiene habits, will normally end up with periodontal disease. Periodontal disease is a condition in which the bone and surrounding structures are destroyed. Some people who suffer from dental anxiety have had bad experiences. Any type of negative dental experience will normally result in emotional scarring and last for years. Anything that results in negative feelings for the patient will normally cause them to feel in a negative way toward the entire dental profession. Food and debris will build up between your teeth, which makes dental flossing very important. The main problem many people have against flossing is the fact that it can result in bleeding of the gums. Anytime you floss and get between your teeth and around your gums, the floss will rub against your gums, resulting in bleeding.