In brief: Dental sedation ranges from light relaxation with nitrous oxide to full unconsciousness under general anaesthesia, with oral and IV conscious sedation in between. The right level depends on how anxious you are, how long and complex the procedure is, and your medical history. At Dazzle, the sedation plan is agreed at the consultation, before any treatment is booked.
Local anaesthesia comes first
Local anaesthesia is not sedation. It numbs the area being treated but leaves you fully awake and alert. It is used for almost every filling, root canal, extraction and implant, and it is usually still given when you are sedated, because sedation calms you while the local anaesthetic blocks sensation from the tooth.
For patients who dread injections, Dazzle uses a computer-controlled local anaesthesia delivery device (CCLAD). It releases the anaesthetic slowly and at a steady pressure, which most people find more comfortable than a conventional syringe.
The four levels of dental sedation
Nitrous oxide (laughing gas)
Nitrous oxide is breathed in through a small nose mask, mixed with oxygen. Within a few minutes most people feel calm, warm and slightly light-headed, while staying awake and able to talk. The effect fades within minutes of switching to pure oxygen at the end. It suits mild to moderate anxiety and routine procedures such as cleanings and fillings. Nitrous oxide is available at Dazzle.
Oral sedation
Oral sedation is a prescribed tablet, usually from the benzodiazepine family, taken a set time before the appointment. You stay conscious but drowsy and relaxed, and you may remember little of the visit. The depth is harder to adjust than with IV sedation because the full dose is already taken, and drowsiness often lingers for the rest of the day. Whether it is a good fit for you is a decision for your dentist after reviewing your health and medicines.
IV conscious sedation
IV sedation is given through a fine cannula in the hand or arm. You remain conscious, breathe on your own and can respond to instructions, but you feel deeply relaxed and often recall very little of the procedure afterwards. Its main advantage is control: the dose can be raised or lowered during treatment. It is commonly used for severe anxiety, a strong gag reflex, multiple extractions, wisdom tooth surgery and full-arch implant surgery such as All-on-4. IV conscious sedation is available at Dazzle.
General anaesthesia
General anaesthesia makes you completely unconscious. It is reserved for extensive or complex treatment, severe dental phobia, and patients who cannot cooperate with other approaches, such as some young children or people with certain disabilities. At Dazzle it is given by a trained anaesthesiologist. You will be asked to fast beforehand and will need longer to recover than with conscious sedation.
How safe is dental sedation?
Sedation is generally safe when it is given by trained staff, after proper screening and with continuous monitoring. Like any medicine it carries some risk, which is why the screening and monitoring steps matter more than the choice of drug.
Screening before sedation
Before any sedation, your dentist reviews your medical history, including:
- Heart and lung conditions, including asthma and sleep apnoea
- Current medicines and supplements, because some interact with sedatives
- Allergies and any past reactions to anaesthesia
- Pregnancy, alcohol use and recent illness
- Diabetes, blood pressure and other conditions that affect fasting or recovery
Depending on your health, your dentist may ask for a note from your physician before deeper sedation.
Monitoring during treatment
At Dazzle, patients under sedation or general anaesthesia are monitored throughout with a multi-parameter monitor: ECG, heart rate, oxygen saturation (SpO2), blood pressure and temperature. With IV sedation, the dose is adjusted in response to these readings and to how you are responding.
What you feel during and after
With nitrous oxide you are aware of everything but less bothered by it. With oral or IV sedation, time seems to pass quickly and many patients remember only fragments. Under general anaesthesia you remember nothing of the procedure.
Common after-effects of the deeper levels include drowsiness, mild nausea, a dry mouth and some unsteadiness for the rest of the day. You will be observed in the clinic until you are alert and steady enough to leave, and you will receive written aftercare instructions.
Aftercare and your escort
After oral sedation, IV sedation or general anaesthesia, you need a responsible adult to take you home and, ideally, stay with you for the rest of the day. For the next 24 hours:
- Do not drive, ride a two-wheeler or operate machinery
- Do not sign legal or financial documents or make important decisions
- Avoid alcohol and sleeping tablets
- Start with fluids and soft food once any numbness has worn off
- Follow the specific instructions for your procedure, such as those after an extraction or implant surgery
After nitrous oxide alone, most adults recover within minutes and can usually go back to normal activities, including driving, once the dentist confirms they feel fully clear.
If you are travelling to Mumbai for treatment, plan for a companion on the day of any IV sedation or general anaesthesia, and avoid flying on the same day.
Choosing the right option
The level of sedation is chosen from four things: how anxious you are, what the procedure involves and how long it takes, your medical history, and how quickly you need to be back to normal. A nervous patient having a single filling may only need nitrous oxide. Someone having several implants or a full-arch procedure is more likely to be offered IV sedation or general anaesthesia.
Sedation is not only for surgery. Patients who have avoided the dentist for years because of anxiety often use it for cleanings and fillings, and it can let a dentist complete several treatments in one longer visit instead of many short ones. Read more on our dental anxiety solutions page, or see how sedation is used in All-on-4 implant surgery and wisdom tooth surgery.
Nervous about your next visit? Book a Consult at our Bandra West or Kemps Corner clinic and talk through your sedation options before any treatment is planned.
