Nitrous oxide is a gas used to help people relax before medical or dental procedures. It is non-flammable and colorless and is sometimes called laughing gas or happy gas.
Nitrous oxide is a gas that healthcare providers use to perform anesthesia. It is the weakest form of anesthesia, but it is still quite versatile because it works quickly and has limited side effects. It can be used during dental procedures, surgeries, and labor.
The Effects of the Laughing Gas

If you’re receiving nitrous oxide for anesthesia or sedation, you will inhale it from a mask. The mask looks similar to ones that deliver oxygen or nebulized medications. It is a gas that quickly makes you feel lightheaded and happy.
Nitrous oxide is typically given in a 70 percent concentration, which means that of every 100 mL of gas, 70 mL is nitrous oxide. It is used in various medical procedures to provide pain relief.
The amount of nitrous oxide used varies depending on the desired effect. At lower doses, it will only cause lightheadedness. However, at higher doses, nitrous oxide will make the patient sleepy and relieve pain. For example, if a patient inhales 30 percent N2O, it will have the same pain-relieving effect as taking 10 to 15 mg of morphine. Learn more about contact our Pickering dental office.
This means that at higher doses, nitrous oxide provides greater pain relief but can also cause loss of consciousness. Therefore, in some situations where a high level of pain relief is required, the maximum dose that can be given is 50 percent. Another medication will be necessary if this is not enough to control the pain.
Once your surgery is complete, your team may give you pure oxygen through a mask for a few minutes to help remove any remaining nitrous oxide from your body. They will then remove the mask from your face. You will notice the effects of the gas wearing off within one to two minutes and will feel back to normal.
The Uses of the Laughing Gas
Unlike other anesthetics that are used to put people fully to sleep, laughing gas is intended to only help people relax. The nitrous oxide flows through a mask and you breathe it in.
Laughing gas is given to children through a nasal hood, which covers their noses but not their mouths. The gas has a familiar scent to help them get used to having the mask or nasal hood on.
The laughing gas will start to make you feel lightheaded and giddy within a few minutes. You will be able to hear what is going on around you, but you may not be able to respond to questions or follow instructions. Once the gas kicks in, you may feel:
- Dizzy
- Lightheaded
- Euphoric
- Out of control
Nitrous oxide can cause people to feel happy and giggly. Some people may also see things that aren’t really there. You may feel like your arms and legs are heavy, and you may also experience a tingling sensation in your limbs.
The Effects of the Laughing Gas

If you use nitrous oxide, be sure to follow your doctor’s instructions and take care to avoid any potential side effects. Nitrous oxide is generally considered safe when used occasionally. However, if you need to have multiple procedures that require nitrous oxide, your doctor may recommend you take a B12 supplement to help prevent anemia.
When inhaled, nitrous oxide produces a short-lived, pleasurable feeling of euphoria and lightheadedness. It is often used as a recreational drug, typically by inhalation from a balloon or cylinder.
Conclusion
Laughing gas has been used for centuries for its medical and recreational purposes. Its medical uses include anesthesia and pain relief. Its recreational uses include laughing gas parties and nitrous oxide-fueled cars. Laughing gas is also used in some industries, such as food processing and welding.
If you are looking for Pickering dental services, choose Pickering Dental Services. Our dentists know how to provide the best in preventative dental care so you and your family can enjoy a lifetime of healthy smiles. Schedule your appointment.
Helpful Resources
For more information, visit the Canadian Dental Association Oral Health.
Schedule Your Appointment Today
Contact Pickering Square Dental to book your appointment with Dr. Marvin Lean. Call us at (905) 420-1777 or visit us at 1450 Kingston Rd, Unit #4, Pickering, ON.
Frequently Asked Questions
How often should I visit the dentist?
The Canadian Dental Association recommends visiting your dentist at least twice a year for regular check-ups and cleanings. Some patients may need more frequent visits depending on their oral health needs. Call Pickering Square Dental at (905) 420-1777 to schedule your next appointment.
Do you accept the Canadian Dental Care Plan (CDCP)?
Yes, Pickering Square Dental participates in the Canadian Dental Care Plan. Our team can help you understand your coverage and ensure you receive the dental care you need. Contact us for more details about CDCP eligibility and benefits.
What services does Pickering Square Dental offer?
We offer a full range of dental services including family dentistry, emergency dental care, sedation dentistry, dental implants, laser dentistry, teeth whitening, root canal therapy, dental extractions, periodontal care, and cosmetic dentistry. Dr. Lean and our team serve patients in Pickering, Ajax, Whitby, and Scarborough.
About Dr. Marvin Lean, DDS
Dr. Marvin Lean, DDS, is the owner and lead dentist at Pickering Square Dental. With decades of experience in family and laser dentistry, Dr. Lean is also the official dentist of the Toronto Maple Leafs. He is a member of the Ontario Dental Association (ODA) and the Canadian Dental Association (CDA). Dr. Lean and his team provide comprehensive dental care including sedation dentistry, dental implants, emergency dental care, and the Canadian Dental Care Plan (CDCP) to patients in Pickering, Ajax, Whitby, Scarborough, Oshawa, and Markham.

