Both braces and splints are designed to provide support to an area of the body to help reduce pain and improve joint function. But despite their similarities, braces and splints have some key differences: Braces are often used to provide support for a joint while it is healing, while splints are mostly used in urgent situations to help the injured bone remain stable and prevent moving until a more permanent solution can be applied. In general, splints are typically used for fractures, while braces can be used for a variety of different injuries, including ankle and wrist sprains and strains, as well as to rehabilitate a broken bone.