Dental care for children · Westmount, Montreal

Cartier Pediatricsby Clinique Dentaire Cartier
Laughing gas

Relaxed, but wide awake

Laughing gas, or nitrous oxide, is mixed with oxygen and breathed through a small mask over the nose. Your child stays awake and aware, just calmer, and the effect fades within minutes of stopping.

Hygienist treating a relaxed child under laughing gas

Who is it for?

  • Anxious or nervous children

    So the visit goes calmly, without a struggle and without a bad memory.

  • Children with a strong gag reflex

    The gas helps reduce it and makes treatment more comfortable.

  • Slightly longer treatments

    When they need to sit still for a while, the gas makes the wait easier.

  • Children who can breathe through their nose

    The gas is inhaled through the nose: a very congested child, or one who refuses the mask, won't benefit. Minimum age: [To be confirmed by the clinic]

How it goes

Nothing is forced. We present the mask as a game, and your child stays in control.

  1. We pick the mask

    Your child tries the small nasal mask, often scented. We explain they'll breathe "calm air".

  2. We start with oxygen

    The gas is added gradually. After a few minutes, your child feels light, sometimes a little giggly.

  3. We do the treatment

    Your child stays awake, answers questions and can talk. The dentist adjusts the gas as needed.

  4. We finish with oxygen

    A few minutes of pure oxygen clear the effect. Your child leaves the way they arrived.

Frequently asked questions

Is laughing gas safe?

It has been used in children's dental care for decades and is considered one of the gentlest forms of sedation. Your child breathes normally and stays conscious. We assess every child before offering it.

Does my child need to fast?

A light meal before the visit is generally recommended to avoid nausea. Exact instructions: [To be confirmed by the clinic]

Will my child fall asleep?

No. The gas relaxes but doesn't put to sleep. Your child hears, understands and can answer throughout the visit.

What about after the visit?

The effect fades within minutes of stopping the gas. Your child can go back to normal activities, including school or daycare.

Other services

Is your child anxious about the dentist?

Tell us about them. We'll let you know whether laughing gas is a good option and how to prepare for the visit.

Call the clinic · 514-935-5587