1. Study compares nitrous oxide/oxygen mix and oxygen alone for dental procedures.
2. 120 adults with periodontitis are enrolled.
3. Pain and anxiety measured pre, during, and post-procedure.
4. Exclusions include respiratory infections and vitamin deficiencies.
5. Vital signs monitored and satisfaction assessed. 6. Statistical analysis using SPSS version 27.
6. Study aims to enhance patient comfort in dental settings.

Source: BMJ Open