Twin block appliance is being chosen by most patients from around the world as it is a great appliance that pushes the lower jaw forward and helps properly align it with the upper part of your jaw. It is known as a twin block appliance, as there are two parts: the lower part and the upper part. When you look at the twin block appliance, they may appear to be some acrylic blocks. But they can be a great solution for people facing bite issues. They are made of premium quality materials and will be a great option for the patients when you get them from China Orthodontic Lab.