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What is General Anaesthetic
General anaesthetic (also referred to as GA) is a carefully controlled medicine that makes you completely unconscious during dental treatment. Unlike a local anaesthetic, which only numbs your mouth, or sedation, which relaxes you but keeps you partly awake, general anaesthetic puts your whole body to sleep.
While you are under anaesthetic, you will be completely unconscious — free from pain, unaware of the procedure, and with no memory of it afterwards. A specialist anaesthetist gives the anaesthetic and stays with you throughout, carefully monitoring your breathing, heart rate, and overall wellbeing to keep you safe.
GA is usually started through an IV line (a small tube in your arm or hand) or sometimes by breathing in anaesthetic gases through a mask.
Once you are asleep, the anaesthetist maintains the correct level of anaesthetic for the entire procedure.
Throughout, your breathing, heart rate, oxygen levels, and blood pressure are closely monitored.
Yes. Modern anaesthetic is very safe. Serious complications are rare, especially in healthy patients.Your anaesthetist will review your medical history, allergies, and medications before treatment to ensure the safest approach.
Fasting:
You will need to stop eating and drinking several hours before your procedure (your clinic will give you exact instructions)
Medications:
Tell your dentist and anaesthetist about any medicines, vitamins, or supplements you take. Some may need to be stopped beforehand.
Escort:
You must have a responsible adult to take you home afterwards and stay with you for the next 24 hours.
You will wake up in a recovery area, usually within 15–30 minutes.It is normal to feel:Sleepy or groggyA dry throatMild nausea or dizzinessThese effects usually wear off within a few hours.
Pain relief is usually given before you wake up. Your dentist will also provide a take-home pain management plan, which may include medications for the first 1–2 days.
No. For your safety: Do not drive, work, operate machinery, or sign important documents for 24 hours after GA.
Plan to rest quietly at home under supervision.
Children should take the rest of the day off school and avoid sports or active play.
Most people only experience minor, short-term effects such as:
- Drowsiness or confusion
- Nausea or vomiting
- Sore throat or mild muscle aches
Serious risks are extremely rare, but can include allergic reactions, breathing difficulties, or heart complications.
Your anaesthetist will discuss any individual risks with you beforehand.
In summary
General anaesthetic allows dental treatment to be carried out safely and comfortably when other options are not suitable. Your safety is always the highest priority, and your anaesthetist and dental team will be with you before, during, and after your procedure.