Sedation with Local Anaesthetic

Nitrous Oxide Gas “Happy gas”

Nitrous oxide is a mixture of nitrogen and oxygen gases and is also known as "happy gas" . 

The gas is delivered from a mixer into a small mask (nose piece).  The concentration of the gas can be adjusted by the dentist until the child is relaxed.

Nitrous oxide works best on anxious older children (7 years plus) who understand what is required and are cooperative enough to keep the nose piece on.  Patients often feel relaxed, or have a floating sensation and tingliness around their hands and mouth.

Once treatment is near completion, the gas is switched to pure oxygen for 10 mins to ‘flush out’ any remnants of nitrous gas.  The recovery is therefore very quick.