Fan Type Expansion Screw 8mm (10/Pack)

The screw has a threaded central rod that is turned using a key to expand the two halves of the screw. The device is designed to be placed between the molars and expanded to apply pressure to the palatal bone. The Fan Type Expansion Screw is a useful tool in correcting dental arch problems and creating space in the mouth for the proper alignment of teeth. It is commonly used in orthodontic treatments for patients with narrow dental arches or crossbites.