Your dentist decides this at an assessment, and it starts with more than how anxious you feel. They need to know about your breathing, your current health and any medicines you use. The Prince of Wales Hospital sedation manual lists medical history, allergies, regular medicines, earlier anaesthetic problems, sleep apnoea and other airway difficulties among the factors that can affect sedation risk. That is general hospital guidance, so it does not mean every dental patient needs the same tests.
Bring an accurate list of your medicines, including pharmacy products and supplements, as Preparation advice suggests. Do not change a prescribed medicine on your own. If you have diabetes, tell the team, because food and medicine instructions need to fit together. Describe any past reaction rather than guessing whether it was an allergy. Use our contact page to arrange the assessment, and mention any practical needs, such as an interpreter or help reading instructions.
Allow time for this conversation rather than leaving it to the day. A clear answer on suitability, in plain language, is worth having before you commit to a date, and you can ask your dentist to write down anything you want to take home.