Nitrous Oxide


Nitrous oxide, or “laughing gas,” is used as a mild sedative at Richmond Hill Dentistry.  It is delivered through a nose hood, and is administered throughout the entire procedure.  Nitrous oxide elevates your general mood and can evoke a general sense of well-being while you are sitting at the chair.  Most importantly, it relieves anxiety and reduces pain during your dental procedure. 


Nitrous oxide does not put you to sleep. You can still respond to your dentist’s requests and answer questions. Your speech may be slightly slurred, and your responses may be slower than usual. In general, you will be relaxed and cooperative. You will know when you are receiving an injection, and you may even feel it. But you probably won’t care. Your breathing and heartbeat will still be normal.

When Used For Mild (conscious) Sedation, Nitrous Oxide May Make You Feel:

  • Relaxed
  • Warm
  • Pleasant
  • Happy or silly

Nitrous oxide is very safe when used by a properly trained dentist like Dr. Randy Singh, Dr. Marty Sekand, Dr. Ken Jandoo or Dr. Steven Schneider. Side effects may include headache, nausea or vomiting. While you are receiving nitrous oxide, tell your dentist right away about any discomfort or anxiety you feel or concerns you have. There is always someone with you in the dental treatment room when you are receiving nitrous oxide.