Common Procedures | Preventive Care | Gum Disease | Cosmetic Dentistry | Orthodontics | Pediatric Dentistry | Sedation Dentistry | TMJ-TMD | Emergency Dental Care Sedation Dentistry How are sedatives administered? Inhalation — Nitrous oxide, or laughing gas, is the most frequently used method for easing mild to moderate anxiety. Recovery is quick so you can resume your normal activities immediately.