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The laughing gas (nitrous oxide, sedation by inhalation) is extremely safe and harmless, especially useful for sedating children and adults majorly afraid of visits to the dentist and dental treatments. Laughing gas is inhaled through a nose-covering mask. The masks are disposable – a new one for every patient. The slight daze is very pleasant, it majorly reduces fears and causes nice daydreams in childern.

Because nitrous oxide is a minor anaesthetic, small fillings may be made without an additional anaesthesia. However, in more complicated treatments, local anaesthesia is also possible.

During the sedation process a patient always inhales a large dose of oxygen (circa 60%); the dose of nitrous oxide is always adjusted to the given patient’s reaction. Patient is conscious and has all the reflexes.

Recommendations for using N2O/O2 sedation by inhalation:

  • the reduction of the fear of dental treatment in children and adults,
  • strong fear of needles,
  • strong gag reflex,
  • nervous anxiety,
  • long, monotonous or especially dangerous treatments,
  • tartar removal,
  • treatments in children and adults.

Diseases in which choosing sedation by inhalation is recommended:

  • Asthma: since N20 does not cause the irritation of the respiratory system. The risk of an attack decreases due to the reduction of stress. The patient’s effectiveness of breathing and mental state are improved by the high (circa 60%) content of oxygen in the breathing mixture.
  • Epilepsy: the risk of an attack decreases due to the reduction of stress.
  • Heart diseases: N2O does not influence the cardio-vascular system. Patient receives an increased content of oxygen (circa 60%), therefore around a 100% more oxygen reaches the coronary arteries (as indicated by the pulse oximeter). Thanks to the lack of stress there is no increased demand for oxygen.
  • Hypertension: N2O does not influence the vascular system; the decrease of fear and stress positively influences blood pressure levels during the treatment.
  • Haemophilia: the anaesthetic properties of N2O in many cases make it not necessary to use needles.

Contraindications for the N2O/O2 sedation:

  • airway obstruction (cold, tonsil hypertrophy),
  • psychological disorders,
  • multiple sclerosis, porphyria, miastenia gravis,
  • bronchiectasis and chronic obstructive pulmonary disease,
  • alcoholism,
  • lack of patient cooperation.