Which sedative is commonly used for sedation in children?

The correct answer is commonly recognized for sedation in children is nitrous oxide. This sedative is a popular choice because it is effective, has a rapid onset, and can be administered easily in a dental setting. Nitrous oxide, also known as laughing gas, provides anxiolysis and analgesia, allowing children to feel relaxed and comfortable during procedures without significant respiratory depression. Additionally, its effects wear off quickly after the gas is discontinued, making it a safe option for short dental visits.

In the context of pediatric dentistry, the other options, while they may have valid uses in specific situations, are not as commonly used for sedation in children. Lorazepam and diazepam are both benzodiazepines that have sedative properties, but their longer duration of action and potential side effects make them less desirable for routine procedures in the pediatric population. Morphine, typically used for pain management, is also not ideal for sedation in children due to concerns about respiratory depression and the need for careful monitoring. Nitrous oxide stands out as the preferred choice for its safety profile and ease of use in young patients.