Space maintainers and regainers are vital tools in interceptive orthodontics, serving a crucial role in directing proper dental growth. These devices are meant to maintain the necessary spacing between teeth, preventing neighboring teeth from moving into areas where teeth have been extracted and ensuring there is enough space for permanent teeth to emerge. The choice of a specific space maintainer depends on several factors, including the child's stage of dental development, the affected dental arch, and which primary teeth are missing. By effectively maintaining space, these devices can significantly reduce the need for more complex orthodontic treatments in the future.