These are custom-made removable braces fabricated by a skilled technician from plastic (acrylic). The most popular one in the UK, the Twin Block, comes in pairs, one to wear over the top teeth and one over the bottom teeth.
These are used to correct teeth that stick out, to close a big gap between the top and bottom teeth and to improve your child’s profile by encouraging the forward growth of an “under-developed” bottom jaw.
They can avoid the need to remove adult teeth at a later stage and are suitable for anyone who is still growing. These are typically removed for eating, cleaning and playing sports and come in a variety of colours.