How long does it typically take for a plaster of Paris cast to dry after application?

The typical drying time for a plaster of Paris cast after application is around 24 hours. This timeframe is essential for ensuring that the cast hardens sufficiently to provide the necessary support and immobilization for the healing of the injured area. During this period, the plaster undergoes a chemical reaction as it sets, which is influenced by factors such as ambient temperature and humidity.

While it may feel firm shortly after application, allowing a full 24 hours ensures that it achieves maximum strength and stabilizes properly. This is crucial for preventing complications that may arise from an improperly set cast, such as malalignment or inadequate protection of the fracture site. Understanding this timeframe helps healthcare providers ensure optimal patient care and adherence to treatment protocols for musculoskeletal injuries in children.