There are many types of filling, each suitable for different cavities.
Tooth filling procedure
Most people have a local anesthetic injection to completely numb the area while the filling is being done. The numbness can take several hours to wear off.
The decayed and weakened parts of the tooth are removed using small drills and the hole is washed. To protect the tiny nerves and blood vessels inside the tooth, very thin layers of under linings, such as resin, are painted inside the hole before the filling material is packed in. The filling will begin to harden during the first few minutes or, for some materials, a blue light is used to make it set within a few seconds. Sometimes temporary fillings are used where there may not be enough time to do the full treatment, for example during emergency appointments or after a root canal treatment.
Temporary fillings can last for quite a long time, but as the nam represents, they arwe temporary and not very strong so you must always arrange to have a durable filling placed within a few weeks.
Type of fillings
There are many types of fillings, for example: temporary tooth filling, root canal filling, tooth coloured filling (white or ceramic filling), amalgam filling, and mercury filling.