Nitrous Oxide Sedation

Sedation Dentistry in North York: We Offer Nitrous Oxide Sedation

Did you ever have an unpleasant dental experience in the past that makes you lose sleep over your upcoming dental visit? Sedation dentistry from North York’s Dr. Gina Ha & Associates may be just what you need.

Nitrous oxide, commonly known as laughing gas, is a colourless gas with a sweet smell. When you breathe it in through a nasal mask, it will get into your system within a few minutes to relieve your anxiety and help you relax in the dental chair. Once the treatment is finished, patients are placed on 100% pure oxygen and the nitrous oxide gas will quickly get out of your system by your breathing it out.

Nitrous oxide sedation is not indicated for patients with respiratory problems or difficulty breathing in through the nose. Patients with any of the following conditions may not be a good candidate for nitrous oxide sedation:

  • Sinus infection
  • Nasal blocking conditions such as cold, flu, or allergies
  • Cystic fibrosis
  • Chronic obstructive pulmonary diseases such as emphysema and bronchitis
  • Drug addictions
  • Recent eye surgery that involved introducing intraocular gas
  • Recent middle ear surgery
  • Blocked ear tubes

Even with such contraindications, sedation dentistry with nitrous oxide is considered the safest method of sedation for patients suffering from dental anxiety. If you would like to know more about this option, please do not hesitate to ask Dr. Ha today!


Dr. Gina Ha & Associates

4789 Yonge Street, Suite 309

North York, ON M2N 0G3

Phone: 416-435-7227



Monday: 9:00 AM – 6:00 PM
Tuesday: 9:00 AM – 6:00 PM
Wednesday: 9:00 AM – 6:00 PM (by appointment only)
Thursday: 9:00 AM – 7:00 PM
Friday: 9:00 AM – 4:00 PM
Saturday: 9:00 AM – 4:00 PM (2 Saturdays per month)
Sunday: Closed


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