A. There are 2 types of sedation,
the first is relative sedation which is carried out with Nitrous oxide, ‘laughing gas’
There are some dentistal clinicas that still offer this but very few.
The other sedation method is IV, intravenous sedation. A consultant anaesthetist carries out this treatment at a dental practice or in hospital. The medications are applied through a vein in the arm or hand.
If sedation is used for treatment you have take the whole day and usually the next off work because of the after effects of the sedation. If you find a dentist that offers the treatment they will give you medical forms that need to be filled out by the doctor to make sure of any medical issues that may hinder this type of treatment
Kind Regards