dentistry.
Drive home after.
Nitrous oxide is the gentlest, most convenient dental sedation available — effective in 3–5 minutes, completely reversible in 5–10, and the only sedation option that allows you to drive home after. Safe for children and adults.
Nitrous oxide takes effect within 3–5 minutes of the nose mask being placed
and back to normal in minutes.
Nitrous oxide — commonly called laughing gas — is the gentlest form of dental sedation available. Inhaled through a comfortable nose mask, it takes effect within 3– 5 minutes, producing a pleasant, calm, slightly euphoric state without losing consciousness or awareness. When the mask is removed, it clears from your system completely within 5–10 minutes.
Unlike deeper sedation options, nitrous oxide allows you to drive home after your appointment. There is no recovery time, no fasting required, and no need for an escort. It is safe for children and adults, and is an excellent choice for patients with mild to moderate dental anxiety, a gag reflex, or who simply want to feel more comfortable in the chair.
- Drive home after — Nitrous oxide clears completely in 5–10 minutes — no escort needed, no fasting required
- Effect in 3–5 minutes — Onset is fast — you feel calm and relaxed within minutes of the mask being placed
- You stay fully conscious — You can speak, respond, and communicate throughout — just profoundly more relaxed
- Safe for children — Nitrous oxide is routinely used in paediatric dentistry and is safe for anxious young patients
- Adjustable in real time — The concentration is easily increased or decreased immediately — precise and controllable
Nitrous oxide is unique among sedation options in that it requires no fasting, no pre- medication, and no escort. You can eat normally beforehand, attend your appointment, and return to work or normal activities the same day.
the right choice?
You feel nervous at the dentist but function — you just dread it. Nitrous oxide takes the edge off completely, making appointments genuinely comfortable.
Nitrous oxide produces muscle relaxation that significantly reduces the gag reflex response, making impressions, x-rays, and treatment much more comfortable.
Because nitrous oxide clears in minutes and requires no escort, you can have dental treatment and return to work the same afternoon — no disruption to your schedule.
Some patients with cardiac or respiratory conditions are not candidates for deeper sedation. Nitrous oxide is safe for most patients and the anxiety reduction it provides is significant.
Even for patients without significant anxiety, nitrous oxide makes routine procedures — fillings, impressions, periodontal treatment — noticeably more pleasant.
simplest sedation available.
A small, comfortable nose mask is placed. You breathe normally. The nitrous oxide and oxygen mixture begins to flow and you feel its effects within 3–5 minutes.
You feel a warm, pleasant, relaxed
sensation — sometimes described as tingling in the hands and feet. You remain fully conscious, can talk, and are aware of your surroundings.
With you in a comfortable, relaxed state, Dr Kozor completes your treatment. The concentration is adjusted in real time to maintain your ideal comfort level throughout.
The mask is removed and 100% oxygen
administered for 5 minutes. Nitrous oxide clears completely in 5–10 minutes. You feel completely normal — and can drive home.
sedation option available.
Nitrous oxide clears within minutes — no escort required, no downtime, and no fasting beforehand. You can book nitrous oxide appointments any time, including lunchtime.
Most patients find nitrous oxide genuinely pleasant — a warm, calm, slightly euphoric feeling with no nausea, no grogginess, and no unpleasant after-effects.
No pre-medication, no prep, no fasting. Nitrous oxide is available at any appointment and is immediately effective — the simplest possible path to comfortable dental care.
questions answered.
Here are the most common questions we receive about nitrous oxide sedation in our Sydney CBD practice.
Why is nitrous oxide called laughing gas?
Nitrous oxide produces a feeling of euphoria and wellbeing that can cause patients to feel mildly giddy or even laugh — hence the nickname. In a dental context, the effect is more accurately described as a warm, pleasant, deeply relaxed feeling rather than uncontrolled laughter. The amount used in dentistry is calibrated for calm, not comedy.
Is nitrous oxide safe for children?
Yes — nitrous oxide is one of the safest sedation options for children and is routinely used in paediatric dentistry worldwide. It is safe, effective, rapidly reversible, and there are no after-effects. Children typically respond very well to the gentle relaxation it produces.
Can I have nitrous oxide for any dental procedure?
Nitrous oxide is suitable for most routine and some more involved dental procedures — fillings, checkups, impressions, scale and clean, minor extractions. For longer or more complex procedures, deeper sedation options (oral sedation or IV sedation) are typically more appropriate.
Does nitrous oxide have any side effects?
Nitrous oxide at dental concentrations has minimal side effects. Some patients experience mild nausea if the concentration is too high — this is managed immediately by adjusting the mixture. Following proper oxygen administration after treatment, there are no known lingering side effects.
How much does nitrous oxide cost in Sydney?
Nitrous oxide at Horizon Dental is typically $80–$150 per appointment, depending on duration of use. This is in addition to the cost of your dental treatment. Health fund rebates may apply to some components. We confirm costs at your appointment.
to your day in minutes.
No fasting, no escort, no downtime. Nitrous oxide can be added to any appointment. Ask for it at your next visit or book
a specific appointment with nitrous oxide now.
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