You probably know the phenomenon of excruciating pain at the worst possible moment to make your day miserable. In this case, it is possible that one of your teeth has just become sensitive. Tooth decay itself can have different symptoms, such as a sudden sharp pain or even discoloration. That is why, after the symptoms develop, you should consult a doctor immediately in order to minimize the size of the filling and the cost of the dental filling. It does matter how extensive the decay is, the bigger it is, the more your own tooth material disappears. In addition, a tooth filling may be necessary in the event of a fracture or wear, as this way the missing piece of tooth can be replaced.