Delmarva Dental Services has had laughing gas available since 1981. It is extremely safe. It is used to lessen anxiety during a dental procedure. It does not replace the need for local anesthesia.
This process involves placing a flavor-scented mask over the nose of the patient. A mixture of oxygen and nitrous oxide is breathed through the mask into the nose. The dosage can be changed at any time during the procedure. For example someone may need a lower dosage in the beginning of the procedure, more in the middle and less at the end of the procedure. Some patients need the highest dose and some the lowest dose throughout entire procedure. The minimum dosage of oxygen is 30%, maximum 70% and the minimum of nitrous oxide is 30%, maximum 70%. The outside air we breathe has 22% oxygen. This allows you to receive more oxygen than breathing in normal air. The patient is fully conscious and able to talk. It makes you feel relaxed and distant. By the time the procedure is completed, you'll be breathing 100% oxygen. You'll be back to normal with a clear head.
Some patients use oral sedation combined with nitrous. These individuals will need someone to drive them to and from the appointment. We have found that over the years many apprehensive patients use nitrous initially but find they don't need it after a few visits. There are patients who choose to use nitrous regularly for their dental treatment.