Dr Fatemeh Mobaraki

Sedation (nitrous oxide) for dental procedures

Nitrous oxide is a gas, and is commonly known as happy gas or laughing gas. Giving nitrous oxide is a way to help reduce a child’s pain and anxiety during dental treatment. The gas is given through a small nosepiece, and your child will be awake throughout the procedure. Children usually recover quickly from the effects of the gas after their dental treatment has been completed.

Before The Procedure

As the parent or carer, you must give your consent to use sedation and consent for the dental procedure. 

You need to understand the reasons for sedation and the following risks: o In some cases, your child’s oxygen levels may drop. If this happens, they will be given oxygen through an oxygen mask. Nurses will carefully check your child’s breathing throughout the procedure.



Your child can have a light meal, such as jelly, soup or toast, and a drink two hours before the procedure. After that, they should have nothing to eat or drink until after the procedure.


During the procedure

 Nitrous oxide sedation is given in the dental chair. Your child will breathe the sedation gas through a small nosepiece that sits on their nose. It does not cover their mouth.
  • The nitrous oxide makes children feel sleepy and relaxed. Your child will still be aware of what is happening around them, but will feel dreamy and floaty, warm, and have tingling in their hands and feet. They may be a little forgetful, and might not be able to remember the procedure afterward.
  • While giving the nitrous oxide, staff will monitor your child’s level of sedation to ensure that they can still cooperate and follow verbal instructions.
  • The dental treatment will be carried out. Local anesthesia injections may also be given so that your child doesn’t feel pain. These can be given while your child is sedated.

dr fatemeh mobaraki

643 reviews