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.