When using nitrous oxide, what is the best practice to prevent leakage?

Using a scavenger hose and ensuring proper mask fitting is the best practice to prevent leakage when administering nitrous oxide. The scavenger system is designed to capture excess nitrous oxide that escapes into the environment, thereby minimizing the risk of inhalation by dental personnel and other patients in the vicinity. Proper mask fitting is also critical, as a well-fitted mask creates a better seal around the patient's face, reducing the amount of nitrous oxide that can leak during administration. Together, these practices enhance safety for both the patient and the dental team.

While increasing the flow of nitrous oxide may appear to be a viable option, it does not address the issue of leakage and can even lead to higher levels of nitrous oxide in the clinical environment if not managed properly. Checking oxygen levels is crucial for patient safety but does not directly relate to preventing leakage. Keeping the dental office well-ventilated is generally a good practice, but it is not as effective as using a scavenger system combined with proper mask fitting in preventing the escape of nitrous oxide into the air.