Nitrous oxide sedation is a safe and effective technique to reduce anxiety, produce analgesia, and enhance effective communication between a patient and dentist.
Indications for use of nitrous oxide include:
- A fearful, anxious patient.
- Certain patients with special health care needs.
- A patient whose gag reflex interferes with dental care.
- A patient for whom profound local anaesthesia cannot be obtained.
- A cooperative child undergoing a lengthy dental procedure.
Contraindications for use of nitrous oxide/oxygen inhalation may include:
- Some chronic obstructive pulmonary diseases.
- Severe emotional disturbances or drug-related dependencies.
- The first trimester of pregnancy.
- Treatment with bleomycin sulphate
- Methylenetetrahydrofolate reductase deficiency.
- Cobalamin deficiency