Nitrous-oxide is a colorless gas that is sweet smelling and commonly known as “laughing gas” because it makes patients slightly giddy. It is the first anesthetic used for dental treatment in the 1844 by dentist Horace Wells. It is mixed with oxygen in our dental office and creates a reversible state of euphoric relaxation and amnesia. We use it in combination with local anesthetics to numb the areas being treated. It is best to have eaten before administration. There is a minimal fee.