Nitrous Oxide Sedation

Nitrous oxide is a form of sedation used in dental treatment, and is commonly known as happy gas or laughing gas.

Administration of nitrous oxide is a rapid and effective way to help reduce associated dental anxiety, pain and even suppress the gag reflex.

There are no limitations to what procedures nitrous oxide can be utilised with as it is a predictable and harmless sedative. Regularly used on young children, nitrous sedation can prevent the need for hospitalisation & general anaesthesia as it enables the dentist to safely treat the calm child in the chair.


The nitrous oxide gas is mixed with oxygen and the effective dose (varies for each individual) is delivered through a small nosepiece. The patient will still be conscious throughout the entire procedure, however will feel more at ease.

The effects of nitrous oxide are self-limiting and there is no “hangover” effect, thus recovery is almost instant after the dental treatment has been completed. The gas is completely eliminated from the body within 3-5 minutes and you can drive home safely without an escort.

We are open for urgent dental care
Affinity Dentistry will remain open during the ACT lockdown period for emergencies and urgent dental care. Please note, our operating hours have changed during this time.
If you have any queries or concerns please feel free to contact us on 02 6210 2200 between 9 am and 3 pm Monday to Friday, or email Please be advised that we are not accepting walk-in bookings during lockdown
We look forward to caring for our community in a COVID safe environment and we thank you for your understanding during this difficult time.
Warmest Regards,
Affinity Dentistry