Tooth Fillings (Restorations)
Once decay has taken hold in a tooth, it will continue to damage more and more of the tooth, becoming more painful until treated by a dentist. A filling repairs the damage caused by decay and stops any more bacteria from entering the tooth.
If you have a cavity, your dentist may keep an eye on it (if it’s small) or fill it right away. If a large cavity is not filled, it can get bigger and cause pain. The tooth may even have to be removed and replaced with a false (or artificial) tooth.
To treat a cavity your dentist will remove the decayed portion of the tooth and then “fill” the area on the tooth where the decayed material was removed.
Fillings are also used to repair cracked or broken teeth and teeth that have been worn down from misuse (such as from nail-biting or tooth grinding).