A filling is a common treatment that is often carried out under local anaesthetic, numbing the area to ensure it can be carried out without discomfort. The dentist will often take X-rays to assess the extent of damage and the size of the filling that is required.
The tooth is then cleaned and disinfected, all the decay is removed, and the tooth is prepared before the filling is placed. The dentist will then smooth and polish the filling and check the bite to ensure comfort and function for the patient.
You should then be able to eat and drink as normal a few hours after the appointment once the anaesthetic has worn off.