Choosing nitrous oxide or oral sedation
Which one fits you depends on the procedure, your overall health, any allergies and how nervous you feel. Timing matters too: nitrous oxide wears off soon after the mask comes off, while oral sedation can last a few hours, so with oral sedation you need a ride to and from your appointment. Ask us, and we will talk it through with you.

Nitrous oxide, breathed in during your visit
Nitrous oxide, often called laughing gas, is mixed with oxygen, and you breathe it through a small mask that fits over your nose. You start to feel it within a few minutes. Many people feel happy and warm, and some laugh, which is where the nickname comes from. You may also feel light-headed, or notice tingling or heaviness in your arms and legs.
- It calms nerves and also helps with pain during treatment.
- We can turn it up or down during your visit if you feel too little or too much.
- It wears off soon after the mask comes off, and you can usually drive yourself home.
Nitrous oxide is a safe and effective sedative, and we are glad to use it if you feel very nervous or would like extra pain relief during a procedure.

Oral sedation, taken before you arrive
Oral sedation is a prescribed medicine that calms your nerves. You take it about an hour before your appointment, so it is working by the time you reach our office. You stay conscious and can respond to us, but you may feel drowsy and may not remember much of the treatment afterward.
You can have it for a routine cleaning, and it can make a long or involved procedure easier to get through. Oral sedation may suit you if you:
- feel very nervous at the dentist, or are afraid of dental visits
- have a sensitive gag reflex
- need extensive or complex dental work
- find it hard to sit still for a long time

Before and during your oral sedation visit
- Before your treatment, we go over your medical history and the medicines you take, and we set the dose for you.
- Arrange for a trusted friend or family member to drive you to your appointment and home again. The effects of the medicine can last a few hours.
- We monitor you closely throughout your treatment.
Oral sedation is commonly used in dentistry, and for most people it is a safe option when the dose is set for them and they are monitored during care.

Ask about sedation when you call
If nerves have kept you away from the dentist for a while, ask about sedation when you call to set up your visit. If you request an appointment instead, ask about it when we call you back.
Sources
- Nitrous Oxide: Laughing Gas. MouthHealthy, American Dental Association
- Nitrous Oxide. Oral Health Topics, American Dental Association, updated August 10, 2023
- Anesthesia and Sedation. MouthHealthy, American Dental Association
- Guidelines for the Use of Sedation and General Anesthesia by Dentists. American Dental Association, October 2025
