Laughing Gas at the Kids' Dentist

Nitrous oxide — the one everyone calls laughing gas — is a mild, sweet-smelling gas your child breathes through a small nose mask during the visit. It does not put them to sleep. It simply takes the edge off: worried kids feel calmer, giggly, and a little floaty, and the appointment feels shorter than it is. Once the mask comes off and they breathe regular air for a few minutes, the feeling fades completely.

Which kids is it for?

I think about nitrous for children who are nervous, wiggly, or facing a longer visit — and for kids whose very first experiences need to feel safe. A relaxed first visit, the kind where a child rides in the chair and gets a gentle polish by their first birthday, builds trust for years. Nitrous can help a fearful child have that kind of visit instead of a scary one. Whether it fits your child is something we decide together at an in-person evaluation, never over the phone.

What it feels like, in plain words

Your child stays awake the whole time and can talk to me. Most kids describe tingly fingers, a warm floaty feeling, and everything seeming a bit funny. If a child does not like the mask or the feeling, we simply stop — in my office we go slowly, use kid-friendly words, and never force anything. There is no pressure to continue with something your child is not comfortable with.

Parents sometimes worry the gas will make their child act strangely afterward, but there is no hangover effect — once the mask is off and a few minutes of regular air have passed, kids are fully themselves. I also want parents to know nitrous is optional, never required; plenty of children do beautifully with just a calm, unhurried visit. We talk it through together beforehand so there are no surprises for you or your child.

After the visit

Recovery is quick: a few minutes of breathing plain air and most kids are back to themselves, ready for school or the playground. If your child is anxious about dental visits, mention it when you book — it helps me plan the right pace for the appointment. Kids who come for regular checkups and cleanings often need nothing more than that calm, unhurried pacing. We are at 54 Warren St in Tribeca (Mon–Fri 8am–7pm, Sat–Sun 9am–4pm); call 212-561-5303. You can also read about our gentle approach starting from the first visit.

Frequently Asked Questions

Is laughing gas safe for children?

Nitrous oxide has a long history of safe use in pediatric dentistry when given by a trained dentist. I review your child's health history first, at the in-person visit.

Will my child be asleep?

No. They stay awake, can talk, and can follow simple directions the whole time — just calmer and more relaxed.

How fast does it wear off?

Very fast. A few minutes of breathing regular air and the effect is gone; most kids head straight back to their day.

What if my child refuses the mask?

Then we do not use it. I never force anything — we switch to a slower, talk-through approach instead.