Fillings may be permanent or temporary. Temporary fillings are those which are placed for a week inorder to monitor those tooth which have potential chance of infection. They are semipermanent and areint meant to last long. If it stays asymptomatic for a week they are usually replaced with permanent one whereas any unpleasant symptoms suggest immediate removal of the filling
followed by root canal treatment or tooth removal. These are selected mostly according to the condition of tooth of the tooth and extent of decay.
Most common type of fillings are tooth colored composite fillings and glass ionomer fillings (these release fluoride and are most commonly used to fill decay below gum line).
Both of these are biocompatible and donot cause any irritation or infections to the tooth and
its surrounding structures. And also have the capability to arrest further decay by
completely filling the hole or cavity.
If proper care is given after filling , they may last unaffected for a very long time without any symptoms. Sensitivity and pain can be thus resolved by filling the tooth as soon as the cavity is noticed.