Inhaled minimal or nitrous oxide is the lightest dental sedation, but it provides appropriate level of anesthesia for most people and for majority of dental procedure. The Breathing involves a mixture of nitrous oxide gas or 'laughing gas' in combination with oxygen which can help patients to become more co-operative and relaxed during treatment without suffering pain.
Nitrous oxide sedation defined as a medical drug induced controlled state of minimally depressed consciousness. This helps patient ability to take breath without any external support, maintain their protective reflexes and respond normally to physical stimulation.
For Some patients group where use of nitrous oxide is contraindicated mostly can take the advantage of N2O inhalation, the following are: