More and more dental professionals are finding that N2O/O2 is a reliable and efficient method of relieving pain, fear, and apprehension in patients undergoing surgical procedures and is quickly and easily reversed without unwanted side effects. The third edition of this unique chairside handbook is an invaluable resource for this method of sedation. It provides step-by-step techniques of all the uses of N2O/O2 as a means of pain and anxiety management, and is written at a level that can be easily understood by dental students and professionals of all levels.