The Twin Block appliance
The Twin Block appliance is used to correct bite issues and improve jaw alignment and is commonly used to treat overbites and underbites. This appliance is made up of both an upper and lower component that work together to reposition the lower jaw.
These two appliances interlock at an angle, and they move your lower jaw forward and lock it into the ideal position when you bite together. Over time this forced position will train correct oral posture and become an effortless and permanent position for the jaw.
This appliance is designed to be worn full time, for a duration of about 9-12 months. This appliance can be used for adults and children, however, it is generally recommended for younger patients as their jaws are still growing and much easier to guide to the correct position.