Both methods are used in the treatment of children with dental phobia or intellectual/physical disabilities, but their application limits are very different. Conscious sedation with nitrous oxide (laughing gas) inhalation is preferred for children with mild to moderate phobia who can communicate with the dentist at a basic level but become agitated in the chair. The child is fully awake during the procedure, breathes, follows instructions, but is in a state of deep relaxation and calmness. General anesthesia, on the other hand, is preferred for very young children (2-4 years), those who are extremely uncooperative, those who require extensive surgery and root canal treatment, or those with severe intellectual disabilities. In general anesthesia, the child is completely asleep, their breathing is connected to a machine, and all treatments are completed in a single session under operating room conditions.